【应用】单组分导热凝胶THERM-A-GAP GEL 75用于反无人机雷达，助力解决FPGA芯片散热问题

时间： 2022-12-20 来源：世强

技术问答

笔者目前在服务的一款反无人机雷达产品，射频芯片+FPGA芯片总功耗达到了80多W，其中射频芯片的Tj≤150℃，FPGA芯片功耗15W，要求在环温75℃的工况下的温升不能超过15℃。由于整机有较高IP防护要求，在散热设计方面更加倾向于采用自然散热的方式；通过前期热仿真，搭配合理的导热材料选型+散热模组设计，最终可实现FPGA芯片温控目标。

对于FPGA与散热模组之间的间隙在0.3mm~0.4mm，传统的导热垫片在兼顾高导热的同时很难达到这么薄的厚度，即便做到这么薄的厚度，也会极大的损伤其机械性能及操作性能。PARKER CHOMERICS THERM-A-GAP GEL 75是一款单组分导热凝胶，液态膏状的产品形态，使其具有随结构成型的良好特性，对于这种小间隙应用场景特别适合。此外，THERM-A-GAP GEL 75应用于反无人机雷达还具有如下一些明显的优势：

1、导热系数典型值为7.5W/m.k，界面润湿性好，可为热流提供一条低热阻通路，有利于提升散热效率。

2、其可适用于自动化点胶设备，对于一些复杂的结构和形状都能够达到较高的点胶精度，跟传统人工手贴的操作方式相比，生产效率可得到极大的提升。

3、其在装配过程中，不会对FPGA芯片造成应力损伤，且在长期使用过程中不会存在粉化、变干的问题，可靠性好，质量有保障。

4、其不会固化，具有较好的可返修性，易于清理、无残留，不会污染电子器件。

5、其还具有优异的电气绝缘特性，有机硅体系+绝缘型导热填料，通过特殊的配方设计，击穿强度高达8.7KV@1mm，可有效降低器件短路风险。

6、耐温性好，其可在－40℃~200℃温度范围内长期工作，性能稳定，寿命长。

当然，其还具有阻燃、环保、低挥发等一系列应用优势，这里就不再一一枚举。THERM-A-GAP GEL 75是一款综合性能十分优异的导热材料，可有效解决反无人机雷达产品内部FPGA芯片散热问题；广大用户如有类似需求，欢迎联系世强平台。

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Product Environmental Quality Certification

型号- CHO-SHIELD 571,THERM-A-GAP 569PT,CHO-SEAL 1285,SOFT-SHIELD 3500,SOFT-SHIELD 5000,CHO-SEAL 1401-S,CHO-SEAL V6433,CHO-SEAL 0862,THERMFLOW T725,CEL-XX-5103-XXXX,CHO-SEAL 1278,CHO-SEAL 0860,THERM-A-GAP T652,CHO-SEAL 1291,CHO-SEAL 1290,CHO-FORM 5575,CHO-THERM 1641,CHO-THERM 1646,THERM-A-GAP GEL 40,THERM-A-GAP T654,THERMATTACH T491,CHO-BOND 320,CHO-SEAL 1287,THERM-A-GAP 579KT,CHO-FORM 5560,CHO-SHIELD 596,CHO-MUTE 9000,THERM-A-GAP PAD70TP,SOFT-SHIELD 4850,FPCV-14244,THERM-A-GAP PAD30PN,CHO-FOILCCD,FPCV-13701,THERM-A-GAP F174,CHO-SHIELD 4076,THERMFLOW PC07DM-7,THERM-A-GAP GEL 40NS,CHO-SEAL 1298,CHO-SEAL 6503,CHO-SEAL 6502,CHO-MASK II CMT,CHO-THERM T609,THERM-A-GAP T630,CHO-FORM 5550,THERM-A-GAP T636,CHO-SEAL S6304,THERM-A-GAP G580,THERM-A-GAP T635,CHO-SEAL S6305,CHO-THERM T290,THERM-A-FORM 1641,THERM-A-FORM 1642,THERM-A-GAP G574,CHO-BOND 584,THERM-A-GAP 569PB,THERM-A-GAP G579,CHO-SEAL 1501,THERM-A-GAP PAD30G,THERMFLOW T710,THERM-A-GAP PAD30A,THERMAL GREASE T660,CHO-MUTE 9025,CHO-MUTE 9020,CHO-FORM 5541,CHO-FORM 5542,CHO-SEAL 6372,CHO-SEAL 6371,CHO-SEAL 6370,CHO-LUBE E117,THERM-A-GAP A580,SOFT-SHIELD 1000,THERM-A-GAP G570,THERM-A-GAP PAD60,CHO-FAB CFT,CHO-SEAL 1358,CHO-SEAL 1236,CHO-SEAL 1239,CHO-SEAL L6303,CHO-THERM T500,CHO-SEAL 1250,THERMAL GREASE T650,CHO-FOIL CCD,CHO-FOIL CCE,THERM-A-GAP T174,THERM-A-GAP A574,CHO-FOIL CCH,CHO-FOIL CCJ,CHO-FOIL CCK,THERM-A-GAP A570,THERM-A-GAP A515 RFA,CHO-FORM 5538,THERM-A-PAD-579PN,CHO-MUTE 9005,CHO-SHIELD 1091,THERM-A-GAP PAD60A,THERM-A-GAP A569,CHO-SEAL 1260,CHO-FORM 5526,CHO-FORM 5528,THERM-A-GAP GEL 8010,CHO-BOND 1099,CHO-FORM 5519,THERM-A-GAP 6579,THERM-A-GAP F574,THERM-A-GAP TPS60,THERM-A-GAP 579PN,FPCV-14832,THERM-A-GAP GEL 8017,CHO-BOND 1091,CHO-SIL 1485,CHO-JAC CJ-022-26,THERM-A-GAP 579PB,THERM-A-GAP 579,CHO-SEAL 1273,THERM-A-GAP PAD30,THERMAL GREASE T670,CHO-SIL 1356,CHO-FOIL CAD,THERM-A-GAP T274,CHO-SEAL 1270,CHO-FORM 5513,SOFT-SHIELD 2000,THERM-A-GAP 579PT,CHO-FORM 5515,CHO-SORB,THERM-A-GAP 6569,CHO-BOND 1088,TECKNIT 72-0008,THERM-A-GAP G174,CHO-LUBE4220,CHO-BOND 584-29,CHO-BOND 1083,CHO-SEAL 1265,THERM-A-GAP PAD80,CHO-BOND 1085,CHO-BOND 1086,THERMATTACH T405,CHO-SEAL 6452,CHO-SEAL 6330,THERMATTACH T404,CHO-SHRINK TUBES,CHO-LUBE 4220,CHO-BOND 360-208,CHO-SEAL 2561Y,CHO-FAB CRS,CHO-FORM 5506,THERM-A-GAP GEL 45,CHO-BOND 1076,CHO-BOND 2165,FPCV-13444,CHO-BOND 1077,CHO-SHIELD 608,THERM-A-GAP GELAB,CHO-BOND 1072,CHO-SEAL 1310,CHO-BOND 1073,CHO-SHIELD 604,CHO-BOND 1075,THERMATTACH T418,THERMATTACH T412,THERMATTACH T413,THERMATTACH T414,CHO-SEAL 6460,THERM-A-GAP 575NS,CHO-SEAL S6600,THERM-A-GAP G515 RFA,CHO-STRAP,CHO-BOND 1067,CHO-BOND 1069,THERM-A-GAP PAD70TPF,THERM-A-GAP TC60,THERMATTACH T410,THERMATTACH T411,THERMATTACH T428,CHO-SHIELD 2056,CHO-SHIELD 4916,CHO-SHIELD 4914,CHO-BOND 1055,CHO-BOND 1056,CHO-THERM T444,CHO-THERM T441,THERM-A-GAP TC50,THERM-A-FORM CIP35,CHO-SEAL 1215,CHO-SHIELD 2052,CHO-SEAL 1217,CHO-BOND 1053,CHO-SEAL 1212,CHO-SEAL 1350,THERM-A-FORM T644,THERM-A-FORM T646,THERM-A-GAP GEL 30,CHO-SHIELD 2044,THERM-A-FORM T647,CHO-SHIELD 4900,CHO-SHRINK BOOT,THERMFLOW T310,THERM-A-GAP G974,CHO-SHIELD 2040,CHO-SHIELD 610,CHO-SEAL 2557,THERMFLOW T557,CHO-SEAL 1221,CHO-SEAL 1224,THERM-A-FORM T642,THERMFLOW T558,CHO-BOND 360-20,SOFT-SHIELD 3700,CHO-SEAL 2542,THERM-A-FORM T644G,THERM-A-GAP T580,CHO-BOND 1029,THERM-A-GAP GEL20,THERM-A-GAP T630G,CHO-BOND 1035,CHO-BOND 1038,CHO-BOND 4669,CHO-BOND 592,THERMFLOW T766,CHO-BOND 1030,CHO-BOND 4660,THERM-A-GAP GEL 4517,THERM-A-GAP T574,CHO-JAC,CHO-THERM 1680,THERM-A-GAP T570,SOFT-SHIELD 4008,SOFT-SHIELD 4800,CHO-BOND 1018,CHO-BOND 1019,CHO-THERM 1684,THERM-A-GAP A174,SOFT-SHIELD 4004,SOFT-SHIELD 4002,THERM-A-GAP T579,SOFT-SHIELD 4000,SOFT-SHIELD I,TECKNIT 72-08116,CHO-BOND 1024,CHO-BOND 1027,CHO-SEAL 1401,THERM-A-GAP A579,THERMFLOW T777,THERM-A-GAP TPS60G,CHO-SEAL 6313,TECKNIT 0005,CHO-THERM 1671,TECKNIT 0002,CHO-SIL 1401,THERM-A-GAP GEL60HF,CH0-SEAL 0860,CHO-THERM 1674,CHO-THERM 1679,THERM-A-GAP T569,CHO-THERM 1677,THERM-A-GAP G274,CHO-THERM 1678,CHO-BOND 1016,THERM-A-GAP GEL37,CHO-SEAL 6308,THERM-A-GAP 976,THERM-A-GAP PAD30KT,CHO-SEAL 6307,CHO-SEAL 1651,CHO-SHIELD 2002,THERM-A-GAP GEL 75,CHO-SHIELD 2003,THERM-A-GAP 974,CHO-SHIELD 2001,CHO-THERM 1661,THERM-A-GAP A274,THERM-A--FORM CIP35,CHO-BOND 1121,THERM-A-GAP HCS,CHO-SEAL1285,CHO-SEAL 6435

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