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250R145T
PTC 60V/250V POLYFUSE TELECOM .145A | Series: 250R
The 250R Series is designed to protect against short duration high voltage fault currents (power cross or power induction surge) typically found in telecom applications (250Vrms). The series can be used to help telecom networking equipment meet the protection requirements specified in ITU K.20 and K.21.
| Property | Value |
|---|---|
IH (A) | 0.145 |
Trip Current (A) | 0.29 |
Max Voltage Rating (V) | 250 |
Max Fault Current Rating (A) | 3 |
PDMAX (W) | 1 |
RMIN (Ω) | 5.4 |
R1max (Ω) | 14 |
Max Time to Trip Current (A) | 1 |
Max Time to Trip Time (Sec) | 2.5 |
RTYP (Ω) | 7.5 |
Operating Temperature Min (°C) | -40 |
Operating Temperature Max (°C) | 85 |
- 80–180 mA hold current range and 60 V dc operating voltage
- Interrupting rating at 250 V ac
- Fast time–to-trip
- Binned and sorted narrow resistance ranges available
- Lead-free, halogen-free, and RoHS compliant
250R145T Applications
- Customer Premises Equipment (CPE)
- Central office equipment and telecommunications centers
- LAN and WAN equipment
- Access equipment
250R145T Resources
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| Part Number | Part Description | RoHS | Pb-Free | RoHS (2015/863/EU) Certificate | REACH (SVHCs) Declaration | REACH (SVHCs) | Halogen Free | IPC-Material Declaration | |
|---|---|---|---|---|---|---|---|---|---|
| 250R145TU | PTC 60V/250V POLYFUSE TELECOM .145A |  7/7/2006 |  7/7/2006 | Yes1/1/2010 | View More | ||||
| 250R145TZR | PTC 60V/250V POLYFUSE TELECOM .145A | 7/7/2006 | 7/7/2006 | Yes1/1/2010 | View More |
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