Wired smoke detectors and heat alarms require dependable ac power supplies, highly efficient dc–dc converters, and accurate temperature sensors.


The PICO® II 263 Series Fuse is a specially designed axial leaded fuse that achieves a 250V rating in a small package.
- Very fast-acting
- Small size
- Wide current rating range (62mA- 15A)
- RoHS compliant
- Halogen-free available
- Wide operating temperature range
- Low temperature rerating
- 250V rating
263 Parts
Filters
Showing 1 to 12 of 14 Total Results
Part Number | Actions | Maximum AC Voltage (V) | Vibration | Nominal Melting I2T (A2sec) | Resistance (Ω) | Body | MSL | Opening | Operating Temperature | Agency Approvals |
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Part Number | Actions | Maximum AC Voltage (V) | Vibration | Nominal Melting I2T (A2sec) | Resistance (Ω) | Body | MSL | Opening | Operating Temperature | Agency Approvals | |
---|---|---|---|---|---|---|---|---|---|---|---|
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.000192 | 5.5 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.00251 | 1.745 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.0165 | 0.715 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.0444 | 0.391 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.084 | 0.252 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.0411 | 0.15 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.216 | 0.0635 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / METI / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 1.197 | 0.034 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA / METI | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 2.33 | 0.0224 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / METI / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.087 | 0.105 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / METI / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 0.74 | 0.0444 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / METI / CSA | |||
250 | MIL-STD-202 Method 201 (10v55 Hz) / MIL-STD-202 Method 204 Test Condition C (55v2000 Hz at 10 Gµs Peak) | 1.77 | 0.0274 | Glass | MIL-STD-202 Method 106 | Very Fast-Acting (FF) | -55° to 125°C | cURus / CSA / METI |
263 Applications

Smoke & Heat Detectors
Series: 263 Resources

Circuit Protection Selection Guide
Consult this guide to learn about circuit protection considerations and the solutions Littelfuse offers. Tables help match products with applications.