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Home » NEWEST Products » New by Manufacturer » Bourns » Bourns CMF-SDP Series Telcom CPTC Resettable Fuse
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Bourns CMF-SDP Series Telcom
CPTC Resettable Fuse

Bourns CMF-SDP Series provides precision-tolerance overcurrent protection in Telecom applications. The design features two resistance-matched PTCs in a plastic housing. CMF-SDP Telecom CPTC Resettable Fuses safely operate under fault conditions, withstand lightning surge and AC power cross, offer resistance values from 5.6 ohms to 100 ohms, and assist in meeting Telcordia GR-1089 and ITU-TK.20/K.21/K.45 specifications. Bourns CMF-SDP Telecom CPTC Resettable Fuses can be used as a secondary overcurrent protection device in Customer Premise Equipment (CPE), Central Office (CO), and access equipment.

Additional Resource:
Bourns PortNote® Circuit Protection Design Kits

Features
  • Two resistance-matched PTCs in a plastic housing
  • Narrow resistance tolerance
  • RoHS compliant
Applications
Used as a secondary overcurrent protection device in:
  • Customer Premise Equipment (CPE)
  • Central Office (CO)
  • HVAC
  • Access equipment

Part Number


Induction Voltage Withstand
Rated Voltage
Rated Resistance
(RN)


Resistance Matching In Housing
Hold Current
Trip Current

Imax@ 230 VAC
Typical Time to Trip @ Imax/230 VAC
VAC
 Volts
Ohms
Tolerance
 Ohms
Amps @ 25 °C
 Amps @ 25 °C
Amps Seconds
 CMF-SDP50A-2 600 230 50 ±15‰  ±0.5 0.090  0.190 2.5
0.12




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