PCF1CT631R561K Equivalent & Substitute Parts

Part Overview

The PCF1CT631R561K is a 560 Ohms ±10% 1W through-hole resistor manufactured by KOA Speer Electronics, Inc. This leaded ceramic anti-pulse resistor is designed for axial mounting in automotive applications requiring AEC-Q200 compliance. The component features flame-proof construction, non-inductive design, and pulse-withstanding capability, making it suitable for demanding automotive environments operating between -40°C and 200°C. The part is currently Active in product status with 686 pieces available in stock. Equivalent substitute parts are identified when they maintain identical electrical specifications, mechanical dimensions, and compliance certifications.

Substiute Parts

PCF1CT631R561K

KOA Speer Electronics, Inc.In Stock: 711PCF1CT631R561K Datasheet

Current PartRFQ

PCF1C561K

KOA Speer Electronics, Inc.In Stock: 2005PCF1C561K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCF1CT631R561K is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (560 Ohms), tolerance (±10%), and power rating (1W) must be identical. Temperature coefficient range (-700/-1800ppm/°C) and operating temperature limits (-40°C ~ 200°C) establish the thermal performance envelope.

Mechanical Parameters: Package type (Axial), physical dimensions (0.217" Dia x 0.650" L / 5.50mm x 16.50mm), and number of terminations (2) ensure mechanical compatibility with existing PCB layouts and assembly processes.

Compliance & Features: Automotive AEC-Q200 certification, flame-proof construction, non-inductive design, and pulse-withstanding capability are mandatory for substitution in automotive applications. RoHS3 compliance and REACH unaffected status must be maintained.

Series Designation: Both the main part and substitute parts belong to the PCF series from KOA Speer Electronics, Inc., confirming manufacturer consistency.

Parameter Comparison

Engineering Selection Recommendations

The PCF1C561K is a direct parametric equivalent to the PCF1CT631R561K. Both components are manufactured by KOA Speer Electronics, Inc., belong to the PCF series, and maintain identical electrical, mechanical, and compliance specifications. Selection between these parts should be based on inventory availability and supply chain requirements.

The PCF1CT631R561K has 686 pieces in stock, while the PCF1C561K has 1920 pieces available. Both parts carry Active product status, ensuring continued manufacturer support and availability. Both maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements for automotive applications.

For automotive applications requiring AEC-Q200 certification, flame-proof construction, and non-inductive performance in temperature ranges from -40°C to 200°C, either part fulfills the functional and compliance requirements without modification to circuit design or PCB layout.

Frequently Asked Questions (FAQ)

Q: Can PCF1C561K be used as a direct replacement for PCF1CT631R561K?

A: Yes. The PCF1C561K is a parametric equivalent with identical resistance (560 Ohms), tolerance (±10%), power rating (1W), package type (Axial), physical dimensions (0.217" Dia x 0.650" L), operating temperature range (-40°C ~ 200°C), and automotive compliance certifications (AEC-Q200). No circuit modifications are required.

Q: Are there any differences in the mechanical dimensions between these parts?

A: No. Both the PCF1CT631R561K and PCF1C561K have identical axial package dimensions of 0.217" diameter by 0.650" length (5.50mm x 16.50mm). They are mechanically interchangeable on PCBs designed for either part number.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both parts are AEC-Q200 compliant, flame-proof, non-inductive, and pulse-withstanding. Both are ROHS3 compliant and REACH unaffected, meeting automotive environmental and regulatory standards.

Q: What is the difference between PCF1CT631R561K and PCF1C561K part numbers?

A: The part numbers differ in their designation structure, but both represent equivalent 560 Ohms 1W ceramic axial resistors from KOA Speer Electronics, Inc. The difference is in the manufacturer's internal part numbering scheme, not in electrical or mechanical performance.

Q: Which part should be selected based on availability?

A: The PCF1C561K has higher inventory availability (1920 pieces) compared to the PCF1CT631R561K (686 pieces). For applications with extended lead time requirements or high-volume production, the PCF1C561K may offer supply chain advantages while maintaining identical performance specifications.

Q: Are the temperature coefficients identical?

A: Yes. Both parts have identical temperature coefficients of -700/-1800ppm/°C and operate across the same temperature range of -40°C to 200°C, ensuring equivalent thermal stability and performance in automotive environments.