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| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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10 pcs
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10 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request |
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| Approval Agency | |
| Breaking Capacity @ Rated Voltage | |
| Current Rating (Amps) | |
| Fuse Type | |
| Lead Style | |
| Melting I²t | |
| Military Grade | |
| Mounting Type | |
| Nominal Cold Resistance | |
| Nominal Melting I²t | |
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| Response Time | |
| Tape & Reel | |
| Voltage Rating |
The Littelfuse 0272.500H is a board mount fuse from the MICRO series, originally developed for the U.S. Space Program. It is rated at 500 mA and 125 VAC/VDC with a fast blow response time. The fuse offers a high breaking capacity of 10 kA at rated voltage, making it suitable for applications requiring robust fault current protection.
Key electrical specifications include a nominal cold resistance of 0.167 Ω and a melting I²t of 0.0716 A²s. The operating temperature range is -55°C to 125°C, allowing use in harsh environments. The fuse is agency approved by CSA, QPL, and UL, and is compliant with RoHS, REACH, and MSL 1 (unverified).
The package is a radial, can, vertical style with through-hole mounting. The dimensions are 0.235" diameter by 0.287" height (5.97 mm x 7.30 mm), and the lead style is radial. This compact design is ideal for space-constrained board-level applications.
500 mA (0.5 A).
125 VAC/VDC.
10 kA at 125 VAC/VDC.
Fast blow (very fast-acting).
Radial, Can, Vertical, through-hole mounting.
-55°C to 125°C.
0.0716 A²s.