Littelfuse Launches Interactive Surge Protective Device (SPD) Sizing Selection Guide
LITTELFUSE, Inc. (NASDAQ: LFUS), an industrial technology manufacturing company empowering a sustainable, connected, and safer world, announced today the launch of a surge protective device (SPD) selection guide that sizes SPDs to achieve the best level of protection for a system based on specifications provided.
Surge protective devices need to be sized correctly. If they are sized too low, the system could be susceptible to temporary overvoltages as well as cause a decrease in the life expectancy of the SPD. If they are sized too high, it could damage the equipment.
"This easy-to-use selection guide offers customers an interactive calculator that quickly provides the right SPD size to maximize surge protection for their systems," said Debra Jayson, Senior Marketing Manager, Littelfuse Industrial Business. "When specifications are entered, the guide computes the best configuration based on parameters provided and gives information on the recommended SPD product with links to the data sheet and other technical resources."
The Surge Protective Device Selection Guide will determine the optimal maximum continuous operating voltage (MCOV) size for your specific system from variables including:
1. Line-to-line voltage
2. Number of conductors
3. Grounded or ungrounded
4. If there is a neutral
5. If the SPD is going to be installed
6. If remote indication is required
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品类
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负载电流（mA）
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导通电阻（Ω）
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隔离电压（VRMS）
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输入控制电流（mA）
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断态漏电电流A / B（µA）
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输出电容A / B (pF)
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封装类型
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60
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120
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16
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1500
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1
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3/3
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5/10
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产品型号
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品类
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Standoff Voltage (V)
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ILeak (μA)
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ESD Contact (kV)
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ESD Air (kV)
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Clamp Voltage
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CI/OTYP (pF)
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Polarity
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Channels
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MIN VBR@IT (V)
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Operating Temperature（℃）
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Package
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SC1006-01LTG
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TVS Diode Arrays
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No
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6
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0.5
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±30
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±30
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5
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8.3V@1A
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25
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1
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N/A
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SOD523
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产品型号
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品类
|
厂牌
|
Stand-Off Voltage Vʀ (V)
|
Minimum Breakdown Voltage at Iᴛ=1.0MA Vʙʀ(V)
|
Maximum Reverse Leakage at Iʀ@ Vʀ (uA)
|
Maximum Clamping Voltage at Iᴘᴘ=5.0A Vᴄ (V)
|
Maximum Peak Pulse Current per (Fig.3) Iᴘᴘ (A)
|
Maximum Junction Capacitance at 0 Volts (pF)
|
Working Inverse Blocking Voltage Vᴡɪʙ(V)
|
Inverse Blocking Leakage Current at Vᴡɪʙ @ Iɪʙ (mA)
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Peak Inverse Blocking Voltage Vᴘɪʙ (V)
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SACB5.0
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Transient Voltage Suppression Diodes
|
LITTELFUSE
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5
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7.6
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300
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10
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44
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45
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75
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1
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100
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产品型号
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品类
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厂牌
|
Reverse Stand off Voltage V-R (Volts)
|
Breakdown Voltage V-BR (Volts) @ I-T MIN
|
Breakdown Voltage V-BR (Volts) @ I-T MAX
|
Test Current I-T (mA)
|
Maximum Clamping Voltage V-C @ I-PP (V)
|
Maximum Peak Pulse Current I-PP (A)
|
Maximum Reverse Leakage I-R @ V-R (µA)
|
|
SMBJ5.0A-HRA
|
TVS Diode
|
LITTELFUSE
|
5
|
6.4
|
7
|
10
|
9.2
|
65.3
|
800
|
选型表 - LITTELFUSE 立即选型
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|
产品型号
|
品类
|
厂牌
|
Breakdown Voltage Vʙʀ @ Iᴛ (V) MIN
|
Breakdown Voltage Vʙʀ @ Iᴛ (V) MAX
|
Test Current Iᴛ (mA)
|
Reverse Stand off Voltage Vʀ (Volts)
|
Maximum Reverse Leakage Iʀ @ Vʀ (µA)
|
Tᴊ=150℃ Max. Reverse Leakage Iʀ @ Vʀ (µA)
|
Maximum Peak Pulse Surge Current Iᴘᴘ (A)
|
Maximum Clamping Voltage Vᴄ @ Iᴘᴘ (V)
|
|
SLD8S14A
|
TVS Diode
|
LITTELFUSE
|
15.6
|
17.2
|
5
|
14
|
10
|
50
|
301
|
23.2
|
选型表 - LITTELFUSE 立即选型
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|
产品型号
|
品类
|
AEC-Q101 Qualified
|
Standoff Voltage (V)
|
ILeak (μA)
|
ESD Contact (kV)
|
ESD Air (kV)
|
Lightning Immunity (8x20μs) (A)
|
Clamp Voltage
|
CI/OTYP (pF)
|
Polarity
|
Channels
|
MIN VBR@IT (V)
|
Package
|
|
AQ1003-01ETG
|
TVS Diode Arrays
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AEC-Q101
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5
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0.1
|
±30
|
±30
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7
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11.4V@6A/12V@7A
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30
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Unidirectional
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1
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6
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SOD882
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选型表 - LITTELFUSE 立即选型
UN40-385P3浪涌保护器（SPD）
该资料介绍了型号为UN40-385P3的浪涌保护装置（SPD），符合UL 1449和IEC/EN61643-11标准。产品具备安全可靠的保护功能，适用于高可靠性要求的场所。资料详细说明了产品的结构、尺寸、材料清单、电路图以及环保合规性。
优恩半导体 - SURGE PROTECTIVE DEVICES,浪涌保护器,SPD,UN40-385P3
LITTELFUSE AK1-Y/AK3/AK3-Y/AK6/AK10-Y系列瞬态抑制二极管选型表
反向隔离电压：3.3V至600V 峰值脉冲额定功率：200W至30KW 可提供高电流保护，峰值脉冲电流：8/20 1kA、3kA、6kA、10kA、15kA至20kA
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产品型号
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品类
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厂牌
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Standoff Voltage (Vsᴏ)（Volts）
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Max. Reverse Leakage (Iʀ) @Vsᴏ（μA）
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Typical Iʀ @ 85℃ (μA)
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Reverse Breakdown Voltage (Vʙʀ) @ Iᴛ（Min Volts）
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Reverse Breakdown Voltage (Vʙʀ) @ Iᴛ（Max Volts）
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Test Current Iᴛ (mA)
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Max. Clamping Voltage Vᴄʟ @ Iᴘᴘ Peak Pulse Current
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Max. Clamping Voltage Vᴄʟ @ Iᴘᴘ Peak Pulse Current
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Max. Temp Coefficient OF Vʙʀ (%/℃)
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Max. Capacitance 0 Bias 10kHz (nF)
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AK1-076C-Y
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TVS Diodes
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LITTELFUSE
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76
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10
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15
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85
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95
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10
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140
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1000
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0.1
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8.5
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选型表 - LITTELFUSE 立即选型
LITTELFUSE Zero-Cross Turn-On Devices 系列常开输出交流负载开关选型表
LITTELFUSE Zero-Cross Turn-On Devices 系列常开输出交流负载开关，阻断电压400V-800V，工作频率范围20Hz-500Hz，隔离电压2500V-5000V，输入控制电流5mA.
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产品型号
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品类
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阻断电压（VP）
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负载电流（自由空气）（ARMS）
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工作频率范围（Hz）
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隔离电压（VRMS）
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输入控制电流（mA）
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最大断开时间（循环）
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封装类型
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CPC1943
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常开输出交流负载开关
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400
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0.5
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20 - 500
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3750
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5
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0.5
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Power DIP/SMD-6
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选型表 - LITTELFUSE 立即选型
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