【经验】如何为掌上游戏机电源输入端口选择一款合适的过流保护器件?
市面上常用AC/DC电源适配器输出的直流电压有5V、9V、12V、14V、16V、24V等,输出直流电流一般为1A或2A。而掌上游戏机标准电源适配器一般输出为5V/2A,此规格与移动手机电源配器一致,为避免掌上游戏机因选用不合适的AC/DC电源适配器(如供电电压为9V、12V、14V、16V、24V等),其输出电压、电流、极性可能会超出或违背电子产品本身的内部电路规范,可能损坏充电电路或电池组甚至引起安全问题。故在电源输入端口必须设计过流过压保护,一般在电源输入端口处串联一个自恢复型PPTC做过流保护,并在其后并联一个限压器件TVS管或齐纳二极管即可,其典型应用电路参考如下图1所示。
图1:典型掌上游戏机带保护的电池充电器电路
当选用不合适的AC/DC电源适配器导致的高压浪涌时,TVS管导通,大电流通过PPTC,并使PPTC的电阻值迅速变大至限流保护,从而保护整个系统电路,当断电或故障消失后PPTC恢复,变为低电阻的正常工作状态。当然,PPTC还可装在电池组的输入端,增加一层保护作用,此种保护设计方式是在市场上经过大量验证后的经典保护设计。
那么针对此自恢复型PPTC如何做合理选型呢?
考虑到掌上游戏机标准电源适配器一般输出为5V/2A,假定以误选用9V输出电压的电源转换器为例,将出现相对5V输出1.8倍(=9V/5V)过压,通过TVS或齐纳二极管做电压钳位后,电源输入端口出现的瞬时大电流以至少150%过流预估,需要加入一款保持电流至少3A、小尺寸、表面封装PPTC(可恢复型保险丝)做过流保护,具体设计考量如下:
1、 PPTC保持电流建议至少3A(至少1.5倍过流,这个值不好精确)
2、 PPTC最大工作电压至少9V(1.8倍过压)
3、 小尺寸表面封装,如SMD1210、SMD1206
4、 PPTC具有超低内阻,建议最大不超过0.01Ω,减少发热引起的功率损失及影响充电效率
针对如上设计考量,推荐一款LITTELFUSE(力特)LoRho SMD系列PolySwitch封装自恢复型PPTC,其封装尺寸为1206、SMD表面贴装,型号为nanoSMD350LR-C,实物图和尺寸图参考如下图2所示。
图2:nanoSMD350LR-C PPTC实物图和尺寸图
nanoSMD350LR-C PPTC保持电流Ihold为3.5A,动作电流Itrip为6.3A,最大工作电压12V,最大工作电流9A,最大功率1W,最小电阻0.004Ω(非焊接状态),最大电阻0.018Ω(焊接在PCB上),具体电性参数参考如下图3所示。
图3:nanoSMD350LR-C PPTC电性参数
nanoSMD350LR-C PPTC的保持电流Ihold 3.5A是在20℃条件下测得的,那么在其他温度下的保持电流是什么样的呢?下面再提供下工作温度和保持电流Ihold的关系,参考如下图4所示,通过图示易知,在高温时保持电流是下降的,60℃时的保持电流为1.9A,85℃时的保持电流仅为1.3A,这样设计的目前是防止高温时产生过热造成烧毁风险。
图4:nanoSMD350LR-C PPTC工作温度和保持电流Ihold的关系
最后,总结下littelfuse(力特)nanoSMD350LR-C表面贴装自恢复型PPTC竞争优势:
1、 高达12Vdc和3.5A Ihold
2、 0.004Ω超低内部电阻,用于快速充电时,减少功率损失及提高充电效率
3、 SMD与回流焊接工艺兼容
4、 小尺寸1206封装,非常适合电路板空间有限的设计
5、 可自动复位
6、 故障排除后无需更换
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目录- Company profile Circuit Protection Technologies Overcurrent/Overvoltage Protection device ESD Suppression Solutions Overcurrent Protection/Overvoltage Protection Applications Common Circuit Threatsand Protection Solutions Fuses Fuse Holders PPTC Devices Varistors Gas Discharge Tubes ESD Suppressors TVS Diode Arrays Protection Ics TVS Diodes PLED Bypass Protectors SIDACtor® Protection Thyristors Circuit Breakers
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SMD,RF1631-000,ASMD100F-2,RF1864-000,MINIASMDC260F/13.2-2,RF1638-000,PICOSMDC020S-2,RF1405-000,SMDC,RF0316-000,SMDC300F/24-2,RF4918-000,RF0324-000,NANOASMDCH016F-2,ASMD250F-2,PSR-28158-2,FEMTOSMDC016F-2,MICROSMD,RF1632-000,RF2286-000,MICROASMDCH150F-2,MINISMDC160F-2,RF0764-000,RF1180-000,NANOSMDC025F-2,ASMDC075F-2,MICROSMD005F-2,RF1347-000,ASMDC300F/24-2,RF2148-000,SMD150F-2,SMD150F-2018-2,SMD185F-2,TS250-130F-2,PICOASMDC012S-2,ASMD150F/33-2,NANOASMDCH005F-2,NANOASMDC035F-2,ASMD030F-2,NANOASMDC012F-2,E18772-000,ASMD200F-2,NANOSMDC200F-2,ZEPTOSMDC,PSR-28498-2,SMD200F/24-2920-2,RF2158-000,RF4565-000,NANOSMDC075F-2,PICOSMDC035S-2,ASMD075F-2,RF4983-000,RF1637-000,MINISMDC150F-2,FEMTOSMDC005F-2,RF1342-000,RF4571-000,TSL250-080F-2,SMD100F/33-2,NANOASMDC,RF1686-000,RF2487-000,PICOASMDC035S-2,PSR-29470,PSR-29595,MINIASMDCH050F-2,PSR-29596,ZEPTO 0201,RF3927-000,RF4570-000,RF4562-000,RF0317-000,RF2287-000,AHS,RF0309-000,RF1358-000,SMDC030F-2,NANOASMDCH035F-2,MICROSMD110F-2,MINIASMDC014F-2,RF5005-000,MINISMDC260F/13.2-2,RF3102-000,RF1696-000,RF1238-000,RF5033-000,RF0313-000,NANOSMDC035F-2RF4520-000,ASMDC050F-2,RF4821-000,SMD,RF3696-000,RF5064-000,TS250-130F-RA-2,RF2151-000,MINISMDC100F-2,SMD150F/33-2,RF1351-000,RF2147-000,RF0422-000,SMD200F-2,PICOSMDC110S-2,MICROSMD035F-2,RF1185-000,SMDC075F-2,MINIASMDC200F/16-2,RF2159-000,PSR-27331-L-2,RF2573-000,ASMD,PSR-24703F-2,AHS160-2,RF0322-000,PSR-29460,RF3835-000,PSR-29340,RF4929-000,PSR-29464,PSR-29465,RF1467-000,PSR-29466,RF1471-000,RF1644-000,RF1343-000,SMDC185F/33-2,TS250-130F-RB-2,PSR-29467,PSR-29468,PSR-29469,MINISMDC010F-2,MINIASMDC075F/33-2,TSL250-080F-B-0.5-2,RF1359-000,TS250-130F-B-0.5-2,RF5006-000,RF3677-000,MICROASMD010F-2,RF0308-000,TS600-400F-2,MICROSMD175F-2,RF1350-000,RF2146-000,ZEPTOSMDC0015F,TERMINAL SMD,E07878-000,NANOASMDC020F-2,RF5040-000,SMD050F-2,TSM600-250F-2,RF0314-000,RF1989-000,MINISMDC150F/12-2,PICOASMDC110S-2,RF5029-000,RF5034-000,MINISMDC125F-2,MICROSMD050H-2,RF1695-000,RF4914-000,RF2926-000,RF4563-000,AHS300-2,RF4520-000,MINISMDC110F/16-2,PSR-29326,RF4820-000,A05570-000,RF2152-000,FEMTOSMDC020F-2,PICOASMDC050S-2,TS250-130F-RC-B-0.5-2,NANOSMDC110F-2,RF1639-000,MINISMDC020F-R-2,PICOASMDCH010F-2,RF4921-000,MINISMDC020F-2,RF4778-000,SMDH120-2,DECASMDC050F/60-2,RF4441-000,RF1344-000,RF4915-000,MINIASMDC075F/24-2,FEMTOSMDC008F-2,MINIASMDC050F-2,PICOSMDC,D83387-000,MINISMDC300F-2,RF4298-000,ASMD050F-2,A88766-000,MINIASMDC260F/16-2,RF0321-000,NANOSMDC016F-2,MINIASMDC150F/16-2,RF4161-000,RF1338-000,MICROASMDCH075F-2,PSR-29264-C,RF4439-000,TS600-200F-RA-B-0.5-2,MICROSMD010F-2,RF5031-000,RF5112-000,NANOASMDCH050F/24-2,RF4897-000,ZEPTOSMDC0011F,RF5023-000,RF4560-000,RF2145-000,RF2587-000,PICOSMDC050S-2,RF4269-000,SMD250F/15-2920-2,MINISMDC075F/33-2,MINISMDC075F-2,SMD200F-2018-2,RF2153-000,RF0319-000,RF5062-000,FEMTOASMDC010F/15-2,RF4559-000,MINISMDC260F/12-2,SMDC050F-2,MINISMDC125F/16-2,MINISMDC030F-2,MINIASMDC125F/16-2,MINISMDC150F/24-2,MINISMDC200F-2,RF0320-000,NANOSMDC020F-2,RF1345-000,SMD075F/60-2,FEMTOSMDC010F-2,RF0311-000,NANOASMDCH010F-2,RF1689-000,AHS300F/24-2,MINISMDC110F/24-2,RF4818-000,SMD260F-2,RF5055-000,RF1411-000,RF1691-000,RF2161-000,RF1183-000,RF4568-000,RF4916-000,NANOASMDC016F-2,NANOASMDC050F/13.2-2,FEMTOASMDC008F-2,TS,RF4561-000,MINIASMDC030F-2,SMD030F-2,RF1464-000,PICOASMDCH035F-2,FEMTOSMDC,TLINE,SETP0805-100-CC-2,DECASMDC,NANOSMDC010F-2-S,RF0318-000,RF1403-000,RF2154-000,MINISMDC150F/16-2,RF1636-000,RF1352-000,RF3101-000,RF4938-000,RF5032-000,RF1409-000,RF3695-000,RF4576-000,RF0312-000,PICOASMDC075S-2,RF4558-000,RF1346-000,ASMD185F-2,RF4575-000,MICROSMD150F-2,MINISMDC110F-2,SMD250F-2,MINIASMDC150F/24-2,PICOSMDC075S-2,RF1336-000,RF1184-000,TS250-130F-RA-N-2,RF1353-000,MICROASMDCH110F-2,C27178-000,MINIASMDC075F-2,FEMTOSMDC010F/15-2,RF1410-000,SMDC125F/33-2,SMD150F/33-2920-2,RF4793-000,RF5105-000,MINISMDC260F-2,SMD100F-2,RF1479-000,MINIASMDC150F/12-2,RF4917-000,NANOASMDCH035F/30-2,A88390-000,RF2160-000,MINIASMDC260F/12-2,RF5054-000,NANOSMDC,F59779-000,TSV250-130F-B-0.5-2,RF2169-000,RF4898-000,PICOASMDCH016F-2,MINIASMDC110F/16-2,TSM600-400F-2,FEMTOSMDC035F-2,RF1404-000,RF2376-000,FEMTOSMDC012F-2,AHS120F/33-2,RF1633-000,NANOSMDC150F-2,RF1181-000,RF2155-000,RF3692-000,RF1641-000,RF1692-000,RF4569-000,FEMTOASMDC005F-2,RF1335-000,RF1378-000,PICOSMDC012S-2,SMD030F-2018-2,RF1432-000,RF1408-000,PICOSMDC110S-A-2,NANOSMDC035F-2,RF0325-000,MINIASMDC020F-2,MINISMDC200F/16-2,MINISM
2920L Series Surface Mount PolySwitch® Resettable PPTC Datasheet
型号- 2920L185DR,LF075-60,2920L110/60MR,LF500-16,2920L400/15MR,2920L250DR,2920L250,2920L300/15,LF260-24,2920L050,2920L200/24DR,LF110,LF075,LF030,LF150,2920L075/72,LF075-72,2920L200/24,2920L330/24,2920L700/12,2920L300DR,2920L400/15,2920L185,2920L260,2920L030DR,LF125,LF400,LF200,LF300-15,LF600-16,2920L300,2920L200DR,LF600-12,2920L100,2920L260/24DR,2920L075/60,2920L600/12MR,2920L700/12MR,2920L500/16,2920L600/16MR,2920L500/16MR,2920L075,2920L600/16,2920L030,2920L150,2920L075/60MR,LF700-12,2920L600/12,2920L100PR,LF330,2920L125PR,2920L110/60,2920L330/24MR,LF250,LF050,2920L SERIES,2920L260PR,2920L150DR,2920L380/12THYR-A,LF200-24,LF300,2920L300/15DR,LF100,2920L125,2920L260/24,2920L050DR,LF185,2920L,2920L200,2920L075DR,LF260,2920L075/72MR
LFPCN# 41490:Product End of Life Notification for 4 Low Rho SMD PPTC Part Numbers
型号- 1210L175SLYR,1210L380SLYR,1812L370SLPR,1812L350SLPR,1812L260SLPR,1812L270SLPR,1210L200SLYR,1210L400SLWR
1206L Series Surface Mount PolySwitch® Resettable PPTC Datasheet
型号- 1206L010/60,1206L025YR,1206L035/16YR,1206L,1206L110THYR,1206L005/60WR,1206L110/16WR,1206L025,1206L075/16,1206L020,1206L0501,1206L075/16WR,1206L035YR,1206L020/30,1206L050/15YR,1206L010/30WR,1206L005/60,1206L200PR,1206L SERIES,1206L035/30WR,1206L110/16,1206L035,1206L050/24,1206L020/30YR,1206L010/60WR,1206L020YR,1206L075/13.2,1206L050/24WR,1206L380/12THYR-A,1206L035/16,1206L050/15,1206L200,1206L050YR,1206L175PR,1206L010/30,1206L035/30,1206L012/48WR,1206L016,1206L012WR,1206L075THYR,1206L016WR,1206L150TH,1206L025/24,1206L110TH,1206L050,1206L150THWR,1206L012/48,1206L025/24YR,1206L012,1206L075/13.2WR,1206L175,1206L075TH
Coating Material Change for Radial Lead PPTC(LFPCN 41481)
型号- 30R135UU,RF3392-000,30R090UU,RF2714-000,RF2625-000,RF3384-000,RF3295-000,RF2706-000,RF3376-000,RF2633-000,RF5090-000,RF2722-000,RF3198-000,RF3287-000,72R160XMR,RF2641-000,RF2560-000,60R185XMR,RF4692-000,RF2730-000,RF3747-000,RF3755-000,RF5074-000,RF3208-000,RF3305-000,RF0106-000,30R160UPR,RF3321-000,RF5003-000,RF3224-000,RF3899-000,RF4613-000,RF2559-000,RF4796-000,RF4877-000,RF3240-000,RF3191-000,RF2753-000,RF2656-000,RF3279-000,RF5089-000,RF5019-000,RF2575-000,30R500UFX1002,RF3417-000,RF3778-000,RF4990-000,RF4815-000,RF3248-000,RF3336-000,RF3361-000,RF3344-000,60R110XU,RF4903-000,RF3255-000,RF4989-000,RF2729-000,RF4184-000,RF3353-000,RF2738-000,RF3410-000,RF4997-000,RF3263-000,RF5012-000,RF3233-000,RF2776-000,RF2648-000,RF4363-000,RF3054-000,30R800UH,RF3280-000,RF2665-000,RF2567-000,RF4935-000,RF2695-000,RF3367-000,RF3278-000,RF2650-000,AHRF,RF1083-000,D47180-000,RF3391-000,RF4659-000,RF3306-000,RF2624-000,RF2707-000,RF2713-000,30R250UPR,72R135XMR,RF3403-000,RF5004-000,30R700UMR,RF2561-000,RF3383-000,RF3764-000,RF3241-000,RF3636-000,RF3746-000,RF4822-000,RF3352-000,60R375XH,RF3207-000,RF2687-000,RF4717-000,RF3190-000,RF3223-000,RF2673-000,RF5081-000,C45161-000,RF3320-000,RF5059-000,RF2723-000,RF4894-000,RF3377-000,RF2820-000,RKEF,RF4766-000,AHRL,RF3329-000,RF2655-000,AGRF,RF2639-000,RF2728-000,RF3345-000,RF2672-000,RF3328-000,RF5116-000,RF2566-000,RF4998-000,RF3239-000,72R,60R,RF3256-000,72R090XPR,RF2688-000,RF5009-000,RF2649-000,RF0087-000,72R185XMR,RF3055-000,RF2666-000,RF4733-000,RF3330-000,RF3932-000,RF3399-000,60R050XUL25,72R250XMR,60R010XU,RF2640-000,RF4806-000,RF3313-000,RF2762-000,60R025XPR,RF3202-000,RF2745-000,RF4089-000,30R090UPR,RF5011-000,RF3262-000,RF3796-000,RF3418-000,RF4855-000,RF2634-000,RF3288-000,60R090XPR,RF3749-000,30R300UU,RF2694-000,30R300UUL34,RF3218-000,RF3226-000,RF3404-000,RF3277-000,RF3331-000,RF5099-000,A73875-000,RF0538-000,RF5092-000,RF3374-000,RF2627-000,RF3269-000,RF2712-000,RF3234-000,F47151-000,RF2755-000,60R020XPR,RF4992-000,RF3211-000,RF3297-000,RF3254-000,RF2704-000,RF3382-000,RF2724-000,RF2674-000,RF2767-000,RF2631-000,RF4740-000,RF2783-000,RF4909-000,RF3303-000,RF4275-000,RF3346-000,RF3206-000,RF2740-000,RF3249-000,RXEF,RF3282-000,RF4999-000,RF3389-000,RF2719-000,RF4743-000,RF3231-000,RF3060-000,RF2752-000,RF5036-000,RF4884-000,RF2840-000,RF2654-000,30R600UF,RF2697-000,RF3419-000,RF3319-000,RF2689-000,72R075XPR,RF2611-000,RF3327-000,30R185UPR,60R160XMR,RF0034-000,RF3246-000,RF5008-000,RF2569-000,RF3203-000,RF4856-000,600R150-RAF,RF3355-000,RHEF,RF3312-000,RF3398-000,72R160XF,RF3656-000,72R030XPR,RF2682-000,RF4677-000,RF2727-000,RF2774-000,RF3332-000,RF3375-000,RF2731-000,RF3189-000,RF3748-000,60R025XU,RF4764-000,RF3756-000,RF0057-000,30R,RF3268-000,RF3197-000,60R010XPR,RF3225-000,RF2675-000,RF2632-000,RF2768-000,RF3304-000,RF2754-000,RF5077-000,RF2711-000,RGEF,RF3253-000,RF3296-000,RF3210-000,RF2660-000,RF3347-000,RF2748-000,30R400UF,RF2626-000,RF2705-000,RF4863-000,72R135XFL40,RF3219-000,RF2669-000,RF4991-000,RF3381-000,RF3655-000,RF3397-000,RF3281-000,RF4328-000,30R400UMR,72R065XPR,RF3761-000,RF4808-000,RF2681-000,RF3053-000,60R135XF,RF3311-000,RF3354-000,RF3204-000,RF3247-000,RF4212-000,RF2769-000,30R160UU,RF4599-000,RF5035-000,RF4729-000,RF2760-000,RF4407-000,A32837-000,RF3777-000,RF2696-000,RF3360-000,RF2653-000,RF5084-000,RF3326-000,RF2568-000,72R020XPR,RF3196-000,RF3369-000,RF4763-000,RF2726-000,RF3828-000,RF2732-000,RF2775-000,RF3405-000,RF3232-000,60R090XU,RF3275-000,RF3448-000,RF2647-000,60R017XPR,RF2846-000,RUEF,RF4994-000,RF3252-000,RF2757-000,60R110XMR,RF3244-000,RF2765-000,RF2579-000,RF4609-000,RF3058-000,RF2668-000,RF2676-000,60R075XPR,RF3341-000,RF2781-000,RF2773-000,RF2692-000,RF3309-000,RF4455-000,72R050XPR,RF2684-000,RUSBF,RF3260-000,RF2564-000,RF2661-000,30R500UF,RF3267-000,RF3348-000,RF3759-000,RF3317-000,RF3414-000,RF5094-000,RF4931-000,RF3283-000,RF3186-000,RF2718-000,RF4850-000,RF3364-000,RF3236-000,RF4803-000,RF2710-000,RF2699-000,RF3205-000,600R,60R040XPR,RF4389-000,D66727-000,RF4672-000,RF4858-000,RF3379-000,RF3380-000,RF3291-000,RF2912-000,RF3212-000,RF2637-000,RF3387-000,30R185UU,RF3760-000,RF2556-000,RF3396-000,RF4777-000,RF3301-000,RF2725-000,60R160XF,30R600UMR,RF3259-000,60R050XU,RF2733-000,RF2703-000,RF3276-000,RF3406-000,C61007-000,30R900UMR,RF2750-000,RF2629-000,RF3325-000,RF4126-000,RF3372-000,RF2622-000,RF3308-000,RF2652-000,RF2571-000,RF4792-000,RF4762-000,60R065XPR,RF3324-000,RF3227-000,RF2677-000,RF3413-000,RF3261-000,RF2659-000,72R040XPR,RF4977-000,RF3235-000,RF2839-000,RF2756-000,RF4993-000,RF2667-000,RF3349-000,RF3340-000,RF3357-000,RF3251-000,RF2693-000,72R250XF,RF4091-000,RF3318-000,RF5093-000,RF3284-000,RF2717-000,60R017XU,RF3298-000,RF2644-000,60R030XPR,RF2630-000,60R300XF,RF3758-000,RF3059-000,RF3266-000,RF3334-000,RF0037-000,RF2638-000,RF2766-000,RF3290-000,RF3230-000,RF3388-000,RF4125-000,RF2698-000,16R,RF3302-000,RF4142-000,RF4247-000,RF2662-000,RF5000-000,RF3299-000,RF2734-000,30R110UPR,RF4697-000,RF2645-000,RF2623
Manufacturing Site Extension for PolySwitch® China Made Surface Mountable PPTC (41443)
型号- RF4439-000,NANOASMDC010F-2,MICROSMD010F-2,RF5031-000,RF4927-000,RF1694-000,RF5112-000,NANOASMDCH050F/24-2,MICROASMDCH125F-2,RF0315-000,RF4897-000,ASMDC030F-2,RF5023-000,SETP0805-100-SE-2,RF1406-000,RF4560-000,RF0323-000,RF2145-000,RF2587-000,PICOSMDC050S-2,SMD300F-2,RF4269-000,SMD250F/15-2920-2,MINISMDC075F/33-2,MICROASMD005F-2,MINISMDC075F-2,RF2149-000,RF1348-000,SMD200F-2018-2,RF2153-000,RF0319-000,RF1518-000,RF4564-000,AHS200-2,RF5062-000,FEMTOASMDC010F/15-2,RF5051-000,NANOSMDC050F/13.2-2,RF4559-000,SMD300F/15-2,MINISMDC260F/12-2,SMDC050F-2,MINISMDC110H/24-2,RF1511-000,MINISMDC125F/16-2,MICROSMD050F-2,MINISMDC030F-2,MINIASMDC125F/16-2,RF2150-000,MINISMDC150F/24-2,RF5027-000,MINISMDC200F-2,RF0320-000,RF1905-000,PICOASMDCH020F-2,NANOSMDC020F-2,SMDH160-2,RF1345-000,SMD075F/60-2,FEMTOSMDC010F-2,RF0311-000,NANOASMDCH010F-2,RF1689-000,AHS300F/24-2,MINISMDC110F/24-2,SMD260F-2,RF3182-000,RF1179-000,RF1437-000,RF5055-000,MICROSMD200F-2,RF1411-000,RF1691-000,RF2161-000,RF4572-000,RF1183-000,RF4568-000,RF2285-000,RF2157-000,RF4525-000,RF1631-000,ASMD100F-2,RF1864-000,MINIASMDC260F/13.2-2,RF1638-000,NANOASMDC016F-2,NANOASMDC050F/13.2-2,PICOSMDC020S-2,RF1405-000,FEMTOASMDC008F-2,RF0316-000,RF4561-000,SMDC300F/24-2,MINIASMDC030F-2,SMD030F-2,RF1464-000,PICOASMDCH035F-2,RF0324-000,NANOASMDCH016F-2,ASMD250F-2,FEMTOSMDC016F-2,SETP0805-100-CC-2,NANOSMDC010F-2-S,RF1632-000,RF2286-000,RF0318-000,RF1403-000,MICROASMDCH150F-2,MINISMDC160F-2,RF2154-000,RF1180-000,NANOSMDC025F-2,MINISMDC150F/16-2,RF1636-000,ASMDC075F-2,MICROSMD005F-2,RF1352-000,RF3101-000,RF1347-000,ASMDC300F/24-2,RF5032-000,RF2148-000,RF1409-000,SMD150F-2,SMD150F-2018-2,SMD185F-2,RF3695-000,RF4576-000,PICOASMDC012S-2,ASMD150F/33-2,RF0312-000,NANOASMDCH005F-2,NANOASMDC035F-2,ASMD030F-2,PICOASMDC075S-2,NANOASMDC012F-2,RF4558-000,RF1346-000,ASMD185F-2,ASMD200F-2,RF4575-000,MICROSMD150F-2,NANOSMDC200F-2,MINISMDC110F-2,SMD250F-2,MINIASMDC150F/24-2,PICOSMDC075S-2,RF1336-000,SMD200F/24-2920-2,RF2158-000,RF1184-000,RF4565-000,RF1353-000,MICROASMDCH110F-2,NANOSMDC075F-2,PICOSMDC035S-2,MINIASMDC075F-2,ASMD075F-2,RF4983-000,FEMTOSMDC010F/15-2,RF1410-000,SMDC125F/33-2,SMD150F/33-2920-2,RF1637-000,RF5105-000,MINISMDC260F-2,SMD100F-2,MINISMDC150F-2,RF1479-000,FEMTOSMDC005F-2,MINIASMDC150F/12-2,RF1342-000,RF4571-000,NANOASMDCH035F/30-2,RF2160-000,SMD100F/33-2,MINIASMDC260F/12-2,RF5054-000,RF2169-000,RF2487-000,RF4898-000,PICOASMDC035S-2,PICOASMDCH016F-2,MINIASMDC110F/16-2,MINIASMDCH050F-2,RF3927-000,FEMTOSMDC035F-2,RF4570-000,RF1404-000,FEMTOSMDC012F-2,RF4562-000,RF0317-000,RF2287-000,AHS120F/33-2,RF1633-000,NANOSMDC150F-2,RF1181-000,RF2155-000,RF3692-000,RF1358-000,RF1641-000,SMDC030F-2,NANOASMDCH035F-2,RF1692-000,MICROSMD110F-2,MINIASMDC014F-2,RF4569-000,FEMTOASMDC005F-2,MINISMDC260F/13.2-2,RF3102-000,RF1335-000,RF1696-000,RF1238-000,RF1378-000,RF5033-000,PICOSMDC012S-2,SMD030F-2018-2,RF0313-000,ASMDC050F-2,RF3696-000,RF5064-000,RF1408-000,RF2151-000,MINISMDC100F-2,PICOSMDC110S-A-2,NANOSMDC035F-2,RF0325-000,SMD150F/33-2,RF1351-000,RF2147-000,MINIASMDC020F-2,MINISMDC200F/16-2,RF0422-000,MINISMDC050F-2,SMD200F-2,MINISMDC260F/16-2,PICOSMDC110S-2,MICROSMD035F-2,RF1185-000,RF1478-000,RF4574-000,MINISMDC075F/24-2,AHS080-2018-2,SMDC075F-2,MICROASMD050F-2,RF5053-000,MINIASMDC200F/16-2,RF2159-000,RF2477-000,NANOASMDC025F-2,RF1354-000,RF4566-000,RF2573-000,RF1907-000,NANOASMDCH075F-2,SMD075F-2,AHS160-2,RF0322-000,RF4929-000,RF1467-000,RF1471-000,RF1644-000,RF1343-000,SMDC185F/33-2,PICOASMDC020S-2,RF5025-000,ASMD125F-2,MINISMDC200F-A-2,NANOSMDC012F-2,MINIASMDC075F/33-2,MINISMDC010F-2,RF1359-000,RF1634-000,RF3693-000,MICROASMD010F-2,RF0308-000,RF5030-000,MICROSMD175F-2,RF1350-000,RF2146-000,RF4367-000,RF4896-000,RF4438-000,NANOASMDC020F-2,PICOASMDCH050F-2,MINIASMDC010F-2,RF2162-000,SMD050F-2,ASMDC125F/33-2,ASMDC185F/33-2,RF1407-000,RF0314-000,RF1989-000,RF1640-000,MINISMDC150F/12-2,RF4466-000,PICOASMDC110S-2,RF5029-000,RF5034-000,RF0326-000,RF1512-000,MINISMDC125F-2,MICROSMD050H-2,RF1695-000,RF4914-000,MICROSMD075F-2,RF1334-000,RF2926-000,RF4563-000,AHS300-2,RF4520-000,MINISMDC110F/16-2,RF2152-000,FEMTOSMDC020F-2,PICOASMDC050S-2,NANOSMDC010F-2,ASMD150F-2,NANOSMDC110F-2,RF4795-000,SMD100F-2018-2,RF5052-000,RF1639-000,MINISMDC020F-R-2,PICOASMDCH010F-2,MINISMDC020F-2,RF4778-000,RF4646-000,SMDH120-2,AHS120-2,DECASMDC050F/60-2,RF4441-000,PICOASMDCH005F-2,RF4573-000,RF1344-000,MINIASMDC110F/24-2,RF1835-000,MINIASMDC075F/24-2,FEMTOSMDC008F-2,MINIASMDC050F-2,PICOSMDC010S-2,SMD125F-2,MINISMDC300F-2,RF4298-000,ASMD050F-2,RF4819-000,RF2156-000,MINIASMDC260F/16-2,RF0321-000,NANOSMDC016F-2,MINIASMDC150F/16-2,RF4161-000,RF1690-000,PICOASMDC010S-2,RF1338-000,MICROASMDCH075F-2,RF4567-000,MINISMDC014F-2,RF1182-000,RF1355-000,RF5024-000
【PCN】LITTELFUSE Reel Change Notification for Japan made PolySwitch® miniSMDC PPTC (LFPCN# 41369)
型号- RF2227-000,PSR-27313-075,NANOSMDC050F/13.2-02,F10609-000,PSR-27313-035,PSR-27313-110,MICROSMD200F-02,RF2609-000,RF1421-000,RF0393-000,MICROSMD005F-02,RF1977-000,RF2226-000,RF2057-000,FEMTOSMDC005F-02,NANOSMDC075F-02,MICROSMD110F-02,PICOSMD010F,NANOSMDH075F-02,RF1420-000,RF0392-000,RF0390-000,RF1628-000,NANOSMDCH010F-02,RF1161-000,RF0387-000,RF0386-000,RF1415-000,RF4148-000,MICROSMDCH010F-02,RF0391-000,NANOSMDC020F-02,FEMTOSMDC008F-02,NANOSMDC035F-02,NANOSMDC016F-02,RF0385-000,FEMTOSMDC012F-02,MICROSMD010F-02,PICOSMD110F,RF1418-000,NANOSMDC150F-02,RF0389-000,RF1604-000,MICROSMD035F-02,RF2265-000,RF2290-000,RF1515-000,PSR-27313-050,PSR-28741-02,FEMTOSMDC010F-02,PSR-27313-012,PSR-27313-010,RF1002-000,RF2345-000,RF1605-000,RF1221-000,RF1514-000,MICROSMD150F-02,RF1419-000,RF4548-000,RF0388-000,RF1416-000,FEMTOSMDC035F-02,PICOSMD020F,MICROSMD175F-02,NANOASMDCH010F-02,PICOSMD012F,PSR-27313-020,NANOSMDC012F-02,PICOSMD050F,RF1220-000,MICROSMDCH050F-02,PSR-25348,FEMTOSMDC020F-02,RF1417-000,FEMTOSMDC050F-02,MICROSMD050F-02,RF0554-000,MICROSMD075F-02,NANOSMDC110F-02,FEMTOSMDC016F-02,PICOSMD075F,RF0762-000,RF0394-000,PICOSMD035F
3425L Series Surface Mount PPTC
型号- 3425L260/60UR,3425L200/60,3425L300/36MR,3425L260/60,3425L300/36,3425L200/60MR,3425L SERIES,3425L
Tin plating Solution Change For PolySwitch® Surface Mountable PPTC Made-in Littelfuse Tsukuba Plant (LFPCN# 41455)
型号- RF4714-000,NANOSMDC050F/13.2-02,PSR-27313-035,RF4706-000,MICROSMD200F-02,RF2609-000,MINISMDC075F/24-02,RF2226-000,RF2309-000,RF4712-000,NANOSMDC075F-02,FEMTOSMDC005F-02,SMDCH200F/24-02,NANOSMDH075F-02,RF1420-000,RF1658-000,RF0392-000,RF3763-000,RF0390-000,RF1161-000,RF0386-000,SMDCH050F/24-02,MINISMDC260F-02,MICROSMDCH010F-02,NANOSMDC020F-02,NANOSMDC016F-02,PSR-27313-020-02,MINISMDC150F-02,FEMTO SMDC,MICROSMD010F-02,RF1418-000,NANOSMDC150F-02,RF0389-000,RF1604-000,PSR-27313-012,FEMTOSMDC010F-02,PSR-27313-010,MINISMDC260F/16-02,RF2345-000,RF1663-000,MINISMDC020F-02,SMDCH150F/24-02,RF1221-000,RF1514-000,RF2958-000,RF1416-000,MICROSMD175F-02,NANOASMDCH010F-02,MINISMDC150F/12-02,RF1591-000,RF3895-000,PSR-27313-020,RF1661-000,RF4679-000,SMDCH075F/24-02,PSR-28343-02,MINI SMD,PSR-27313-XXX,RF4681-000,RF4715-000,MICROSMD075F-02,MINISMDC014F-02,RF0762-000,RF1593-000,SMDCH125F/24-02,SMDC,RF2227-000,PSR-27313-075,NANOSMDCH030F/24-02,F10609-000,PSR-27313-110,RF1421-000,RF4713-000,RF0393-000,MICROSMD005F-02,RF1977-000,MINISMDC050F-02,MINISMDC110F/24-02,RF2057-000,MICROSMD110F-02,NANO SMDC,RF1628-000,NANOSMDCH010F-02,MINISMDC200F-02,PSR-29252-C-02,RF0387-000,RF1415-000,RF4148-000,MINISMDC150F/24-02,RF0391-000,RF1659-000,NANOSMDC035F-02,FEMTOSMDC008F-02,RF0385-000,FEMTOSMDC012F-02,MICROSMD035F-02,RF1515-000,RF2265-000,RF2290-000,RF4680-000,PSR-27313-050,PSR-28741-02,MINISMDC160F-02,MINISMDC110F/16-02,RF1002-000,MINISMDC260F/12-02,MICRO SMD,RF1592-000,RF1605-000,MICROSMD150F-02,RF1419-000,RF0388-000,RF1662-000,FEMTOSMDC035F-02,RF1688-000,RF1594-000,SMDC310F/18-02,PICO SMDC,NANOSMDC012F-02,RF4432-000,MINI SMDC,RF1220-000,PSR-25348,MICROSMDCH050F-02,FEMTOSMDC020F-02,RF1417-000,MICROSMD050F-02,RF0554-000,NANOSMDC110F-02,FEMTOSMDC016F-02,RF4682-000,PSR-XXXX,RF0394-000
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可定制连接器的间距范围1.25mm~4.5mm、单列/双列列数、焊尾/表面贴装/浮动式等安装方式、镀层、针数等参数,插拔寿命达100万次以上。
最小起订量: 1 提交需求>
可定制插座连接器的间距1.25mm~2.54mm;列数:单列/双列/三列/四列;端子类型:直焊针、直角焊针、表面贴装式、无焊柔性针压接、绕接、载体.;镀层、车针长度/直径、连接针长度等参数可按需定制。
最小起订量: 1 提交需求>
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