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304.250 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - 277V UL913 Intrinsically Safe Fuse - Littelfuse

भाग संख्या 304.250
समारोह 277V UL913 Intrinsically Safe Fuse
मैन्युफैक्चरर्स Littelfuse 
लोगो Littelfuse लोगो 
पूर्व दर्शन
1 Page
		
<?=304.250?> डेटा पत्रक पीडीएफ

304.250 pdf
Special Application Fuses
PICO® 304 Series Fuses > 277V UL913 Intrinsically Safe Fuse
Product Characteristics
Operating Temperature
Current Rating
Ambient Temperature
≤0.200A
-40ºC to +60ºC
0.250A
-40ºC to +56ºC
0.500A
-40ºC to +84ºC
0.750A
-40ºC to +56ºC
Note:
1) Any use of the 304 Series fuse outside of the ambient temperature ranges specified in
the table is subject to additional investigation.
Thermal Shock
Vibration
Insulation Resistance
(After Opening)
Withstands 5 cycles of –55°C to
125°C
Per MIL-STD-202
Greater than 10,000 ohms
(at twice rated DC voltage)
Average Time Current Curves
100
10
1
0.1
0.01
0.001
0.0001
0.01
0.1
1 10
CURRENT IN AMPERES
100
1000
Soldering Parameters
Reflow Condition
Pb-free assembly
- Temperature Min (Ts(min))
Pre Heat
- Temperature Max (Ts(max))
- Time (Min to Max) (ts)
Average Ramp-up Rate
(Liquidus Temp (TL) to peak)
TS(max) to TL - Ramp-up Rate
Reflow
- Temperature (TL) (Liquidus)
- Temperature (tL)
Peak Temperature (TP)
150°C
200°C
60 - 120 seconds
5°C/second max
5°C/second max
217°C
60 - 90 seconds
260+0/-5°C
Time within 5°C of
actual peak Temperature (tp)
20 -40 seconds
Ramp-down Rate
5°C/second max
Time 25°C to Peak Temperature (TP)
8 minutes max
Do not exceed
260°C
Wave Soldering
260°C, 10 sec. max
TP
TL
TS(max)
Ramp-up
TS(min)
25
Preheat
tS
time to peak temperature
(t 25ºC to peak)
tP
Critical Zone
TL to TP
tL
Ramp-down
Time
© 2017 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 02/22/17

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अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
304.250277V UL913 Intrinsically Safe FuseLittelfuse
Littelfuse


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