TR250-145U Tyco Electronics, TR250-145U Datasheet - Page 12
![POLYSWITCH 0.145A HOLD UNENCAPS](/photos/22/4/220468/4433740_sml.jpg)
TR250-145U
Manufacturer Part Number
TR250-145U
Description
POLYSWITCH 0.145A HOLD UNENCAPS
Manufacturer
Tyco Electronics
Series
PolySwitch®r
Datasheet
1.TR250-145.pdf
(28 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TR250-145U
Manufacturer:
Raychem
Quantity:
190
Company:
Part Number:
TR250-145US
Manufacturer:
MOLEX
Quantity:
32 648
4
Table T4. Dimensions for Telecommunications and Networking Devices in Millimeters (Inches) continued
Part Number
BBR—90V
BBR-550
BBR-750
RXE—60,72V
RXE010
RXE017
RXE020
RXE025
RXE030
midSMD—60V
SMD030
SMD030-2018
SMD050-2018
miniSMD—60V
miniSMDC014
miniSMDC014F
Notes:
*Indicates dimension is typical, not minimum.
1
2
3
312
60/250V products are designed to help equipment pass ITU specifications (K.20, K.21, etc) and Telcordia GR-1089 Intrabuilding power cross.
80/250V product designed to help equipment pass Telcordia GR-1089 Intrabuilding power cross (120V
60/600V products are designed to help equipment pass UL 60950,TIA-968-A (formerly FCC Part 68), and Telcordia GR-1089 specification.
PolySwitch Telecommunications and Networking Resettable Devices
(0.265) (0.314)
(0.186) (0.214)
(0.186) (0.214)
(0.172) (0.186) (0.025) (0.035) (0.121) (0.134) (0.012)
(0.172) (0.186) (0.025) (0.035) (0.121) (0.134) (0.012)
Min.
6.73
4.72
4.72
4.37
4.37
Dimension
—
—
—
—
—
—
—
A
(0.43)
(0.47)
(0.29)
(0.29)
(0.29)
(0.29)
(0.29)
Max.
10.9
11.9
7.98
5.44
5.44
4.73
4.73
7.4
7.4
7.4
7.4
7.4
0.635
0.635
Min.
—
—
—
—
—
—
—
—
—
—
B
(0.125) (0.19) (0.214) (0.022) (0.028) (0.022)(0.028)
(0.070) (0.166) (0.194) (0.010) (0.014) (0.010) (0.14)
(0.070) (0.166) (0.194) (0.010) (0.014) (0.010) (0.14)
(0.55)
(0.61)
(0.46)
(0.50)
(0.46)
(0.50)
(0.50)
Max.
14.0
15.5
11.6
12.7
11.7
12.7
12.7
3.18
1.78
1.78
0.89
0.89
Min.
4.22
4.22
3.07
3.07
4.8
—
—
—
—
—
—
—
C
(0.14)
(0.14)
(0.12)
(0.12)
(0.12)
(0.12)
(0.12)
Max.
5.44
4.93
4.93
3.41
3.41
3.6
3.6
3.0
3.0
3.0
3.0
3.0
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
(0.30)
Min.
0.56
0.25
0.25
0.30
0.30
7.6
7.6
7.6
7.6
7.6
7.6
7.6
D
Max.
0.71
0.36
0.36
—
—
—
—
—
—
—
—
—
(0.010)(0.020)
(0.010)(0.020)
(0.17) (0.23)
(0.17) (0.23)
(0.17) (0.23)
(0.17) (0.23)
(0.17) (0.23)
(0.17) (0.23)
(0.17) (0.23)
Min.
0.56
0.25
0.25
0.25
0.25
4.3
4.3
4.3
4.3
4.3
4.3
4.3
AC
/25A).
E
0.71
0.36
0.36
0.50
0.50
Max.
5.8
5.8
5.8
5.8
5.8
5.8
5.8
(0.085) (0.095)
(0.012) (0.018)
(0.012) (0.018)
Min.
2.16
0.30
0.30
—
—
—
—
—
—
—
—
—
F
Max.
2.41
0.46
0.46
—
—
—
—
—
—
—
—
—
Raychem Circuit Protection
Min.
—
—
—
—
—
—
—
—
—
—
—
—
G
Max.
—
—
—
—
—
—
—
—
—
—
—
—
Figure
T2
T2
T2
T2
T2
T2
T2
T9
T8
T8
T5
T5