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SMT Low Profile PTC Resettable Fuses | First Look
Bel Fuse’s polymer formulation positive temperature coefficient (PTC) devices offer circuit protection and an added resettable feature in low-profile, SMT packages. The Bel PTC consists of a block of polymeric material containing conductive carbon granules that is sandwiched between two conductive metal plates. When this polymer block reaches approximately 125oC, either due to current passing through it via conductive chains of carbon particles or due to an external heat source; it swells volumetrically. This expansion breaks apart a majority of the chains of carbon granules that run between the two conductive plates. This behavior results in a sharp increase in resistance across the two plates, which all but eliminates current flow through the device, allowing just enough residual current flow to maintain the block’s internal temperature at 125oC. Once this “tripped” state current is cut off, the polymer brick cools and shrinks to its original size, thereby allowing the broken carbon chains to reestablish themselves and permit the part to return to its low resistance state. Once cooled to room ambient, the PTC will reset. This reset-ability protects electronic equipment, which remains fully functional, and eliminates the need for service personnel to physically replace a fuse. This behavior allows the fuses to protect against harmful overcurrent, short circuit conditions, and over temperature conditions not necessarily caused by excessive current. The surface mount series of resettable PTC devices are all AEC-Q200 compliant, have an operating temperature of -40°C to +85°C, offer voltage ratings from 6 to 60 Volts DC, and an operating hold current range from 10 milliamps all the way up to 5 amps.
0ZCF Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
 |  | 0ZCF0075AF2C | PTC RESET FUSE 60V 750MA 2920 | 135815 - 立即发货 | $2.52 | 查看详情 |
| | 0ZCF0200AF2C | PTC RESET FUSE 24V 2A 2920 | 87636 - 立即发货 | $2.52 | 查看详情 |
| | 0ZCF0125FF2C | PTC RESET FUSE 33V 1.25A 2920 | 27851 - 立即发货 | $2.52 | 查看详情 |
0ZCG Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
|  | 0ZCG0075FF2C | PTC RESET FUSE 16V 750MA 1812 | 94565 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCG0020AF2C | PTC RESET FUSE 60V 200MA 1812 | 392836 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCG0014FF2C | PTC RESET FUSE 60V 140MA 1812 | 146527 - 立即发货 | $1.30 | 查看详情 |
0ZCH Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
|  | 0ZCH0005FF2E | PTC RESET FUSE 60V 50MA 1210 | 95441 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCH0010FF2E | PTC RESET FUSE 60V 100MA 1210 | 641768 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCH0050FF2G | PTC RESET FUSE 16V 500MA 1210 | 90460 - 立即发货 | $1.30 | 查看详情 |
0ZCJ Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
|  | 0ZCJ0016FF2E | PTC RESET FUSE 48V 160MA 1206 | 464713 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCJ0025AF2E | PTC RESET FUSE 24V 250MA 1206 | 88525 - 立即发货 | $1.30 | 查看详情 |
| | 0ZCJ0035FF2G | PTC RESET FUSE 16V 350MA 1206 | 140588 - 立即发货 | $1.30 | 查看详情 |
0ZCK Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
|  | 0ZCK0010FF2G | PTC RESET FUSE 15V 100MA 0805 | 188960 - 立即发货 | $1.54 | 查看详情 |
| | 0ZCK0020FF2G | PTC RESET FUSE 9V 200MA 0805 | 45660 - 立即发货 | $1.54 | 查看详情 |
| | 0ZCK0075FF2E | PTC RESET FUSE 6V 750MA 0805 | 74712 - 立即发货 | $2.03 | 查看详情 |
0ZCM Series
| 图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | 查看详情 | |
|---|---|---|---|---|---|---|
|  | 0ZCM0001FF2G | PTC RESET FUSE 60V 10MA 0603 | 67857 - 立即发货 | $1.54 | 查看详情 |
| | 0ZCM0008FF2G | PTC RESET FUSE 15V 80MA 0603 | 90751 - 立即发货 | $1.54 | 查看详情 |
