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Product Detailed Parameters
- Description：ICL 3 OHM 20% 7A 14.5MM
- Series：P13
- Mfr：EPCOS - TDK Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- R @ 25°C：3 Ohms
- Tolerance：±20%
- Current - Steady State Max：7:00 AM
- R @ Current：74 mOhms
- Diameter：0.571" (14.50mm)
- Lead Spacing：0.295" (7.50mm)
- Grade：-
- Qualification：-
- Approval Agency：-
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Overview
The B57213P0309M351 is a leaded and coated disk inrush current limiting NTC thermistor from the EPCOS P13 series. Designed for high power currents ranging from 2.5 to 7A, it operates within a temperature range of -40°C to 150°C. The component features a nominal resistance of 3 Ohms with a tolerance of ±20%. It has a maximum steady-state current rating of 7A and a cold resistance of 74 mOhms at rated current. The physical dimensions include a diameter of 0.571 inches (14.50mm) and a lead spacing of 0.295 inches (7.50mm).
Feature Summary
- Provides effective inrush current limitation for electronic circuits during startup.
- Constructed as a leaded and coated disk suitable for high power applications.
- Operates reliably across a wide industrial temperature range.
Applications
- Power supply input stages
- Industrial equipment protection
- Consumer electronics circuitry
Procurement Notes
Verify the specific part number suffix against official TDK/EPCOS documentation to ensure correct resistance and current ratings. Confirm RoHS compliance status and packaging details directly with authorized distributors or the manufacturer before ordering. Cross-reference datasheet revisions to avoid discrepancies in electrical parameters.
Selection Notes
Select this component based on the required nominal resistance and maximum steady-state current for the specific application. Ensure the operating temperature range aligns with the system environment. Verify that the physical dimensions fit the available board space and lead configuration requirements.
Part Context
This component belongs to the EPCOS P13 series of inrush current limiting NTC thermistors. These devices are manufactured by EPCOS, now part of the TDK Group. The series is designed to protect sensitive electronic components from damage caused by high initial charging currents in capacitive loads.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided source material. Consult official TDK/EPCOS documentation for cross-reference information.
