CFM14JA680R Equivalent & Substitute Parts

Part Overview

The CFM14JA680R is a 680 Ohm, ±5% tolerance, 1/4W (0.25W) through-hole axial resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and is designed for general-purpose applications requiring reliable performance across industrial and commercial temperature ranges. The part is currently in active production status with 858 units available in inventory. Substitute parts are identified when equivalent electrical specifications and compliance certifications are maintained while accommodating different packaging formats or lead configurations.

Substiute Parts

CFM14JA680R

Stackpole Electronics IncIn Stock: 872CFM14JA680R Datasheet

Current PartRFQ

PCF14JT680R

Stackpole Electronics IncIn Stock: 6548PCF14JT680R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CFM14JA680R is determined by the following criteria:

• Resistance value: 680 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 0.25W / 1/4W (exact match required)
• Composition: Carbon Film (exact match required)
• Temperature coefficient: 0 / -400ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• RoHS and REACH compliance: ROHS3 Compliant, REACH Unaffected (exact match required)
• Termination count: 2 (exact match required)

The PCF14JT680R qualifies as a manufacturer-recommended substitute because it maintains all critical electrical parameters and compliance certifications. The primary difference is the package configuration: the substitute features a radial bend axial lead format (Panasert) with different physical dimensions, suitable for applications where lead bending or specific PCB layout requirements necessitate an alternative to the standard straight axial configuration.

Parameter Comparison

Engineering Selection Recommendations

Both CFM14JA680R and PCF14JT680R are active production components manufactured by Stackpole Electronics Inc with identical electrical specifications and full compliance with ROHS3 and REACH requirements. Selection between these parts should be based on PCB layout and assembly requirements:

• CFM14JA680R: Standard straight axial configuration, suitable for conventional through-hole PCB layouts with standard component spacing.
• PCF14JT680R: Radial bend axial configuration, suitable for applications requiring bent leads or specific PCB mounting geometries.

Both parts maintain equivalent performance across the full operating temperature range of -55°C to 155°C and are suitable for direct substitution in applications where the physical lead configuration is compatible with the target assembly.

Frequently Asked Questions (FAQ)

Q: Can PCF14JT680R replace CFM14JA680R in any application?

A: PCF14JT680R is electrically equivalent to CFM14JA680R. Substitution is valid when the radial bend axial lead configuration is compatible with the PCB layout and assembly process. Verify that the different physical dimensions (0.091" Dia x 0.236" L versus 0.067" Dia x 0.130" L) do not conflict with component spacing or mounting constraints.

Q: Are there differences in reliability or performance between these parts?

A: Both parts are manufactured by the same supplier with identical electrical specifications, temperature coefficients, and operating ranges. No performance differences exist when used within specified parameters.

Q: What is the significance of the different packaging formats (Tape & Box vs. Cut Tape)?

A: Tape & Box (TB) packaging is typically used for manual assembly or smaller production volumes. Cut Tape (CT) packaging is standard for automated pick-and-place assembly. The packaging format does not affect component performance or electrical characteristics.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both CFM14JA680R and PCF14JT680R are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What determines whether a part qualifies as a substitute?

A: Substitution is based on matching resistance value, tolerance, power rating, composition, temperature coefficient, operating temperature range, termination count, and compliance certifications. Physical dimensions and lead configuration may differ if the application permits.