TR250-145U Tyco Electronics, TR250-145U Datasheet - Page 14

• Manufacturer Part Number: TR250-145U
• Description: POLYSWITCH 0.145A HOLD UNENCAPS
• Manufacturer: Tyco Electronics
• Series: PolySwitch®r

Specifications of TR250-145U

• R Min/max: 3.500 ~ 6.500 Ohm
• Voltage - Max: 60V
• Time To Trip: 2s
• Current - Hold (ih) (max): 145mA
• Current - Trip (it): 290mA
• Current - Max: 3A
• Package / Case: Radial
• Holding Current: 0.145A
• Tripping Current: 0.29A
• Initial Resistance Max: 6.5ohm
• Initial Resistance Min: 3.5ohm
• Resistance R1: 12ohm
• Peak Reflow Compatible (260 C): No
• Fuse Terminals: Radial Leaded
• Thermistor Type: PTC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: TR145U

4
Figures T12–T17. Typical Time-to-trip Curves at 20°C for Telecommunications and Networking Devices continued
314
TS250/TSV250/TSL250
A = TSV250-130
B = TS250-130
C = TSL250-080
TR600/TRF600/TS600/TSM600
A = TSM600-250
B = TS600-170/200
C = TR600-160
D = TRF600-150
PolySwitch Telecommunications and Networking Resettable Devices
1000
100
0.1
10
1
0.00
0.10
0.01
100
10
0.00
1
D
C
C
B
A
A
B
0.50
0.50
1.00
1.00
Figure
Figure
Fault Current (A)
Fault Current (A)
1.50
1.50
T14
T15
2.00
2.00
Raychem Circuit Protection
2.50
2.50
3.00
3.00
A
B
C
D
A
B
C