CFM14JA4M70 Equivalent & Substitute Parts

Part Overview

The CFM14JA4M70 is a 4.7 MOhms ±5% 0.25W (1/4W) through-hole resistor with axial leads, manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring high-resistance values in compact form factors. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation, making it suitable for modern electronic assemblies.

Substitute parts are identified when electrical specifications (resistance value, tolerance, power rating, composition, and temperature coefficient) remain identical, while packaging configurations or supplier device packages may vary to accommodate different assembly requirements or inventory availability.

Substiute Parts

CFM14JA4M70

Stackpole Electronics IncIn Stock: 1066CFM14JA4M70 Datasheet

Current PartRFQ

CF14JA4M70

Stackpole Electronics IncIn Stock: 909CF14JA4M70 Datasheet

MFR RecommendedRFQ

PCF14JT4M70

Stackpole Electronics IncIn Stock: 3245PCF14JT4M70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CFM14JA4M70 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4.7 MOhms (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 / -1500ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)
• Compliance certifications: RoHS3 Compliant, REACH Unaffected (exact match required)

Variations in package configuration (Axial vs. Axial with Radial Bend), supplier device package designation (Tape & Box vs. Cut Tape vs. Panasert), and physical dimensions do not disqualify substitution when all electrical and environmental specifications remain identical. These variations reflect different assembly methods and procurement formats rather than functional differences.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CFM14JA4M70, CF14JA4M70, and PCF14JT4M70—are functionally equivalent for circuit applications requiring 4.7 MOhms ±5% at 0.25W with carbon film composition and the specified temperature coefficient. All maintain Active product status with full RoHS3 compliance and REACH unaffected designation.

Selection between these equivalents should be based on:

• Assembly method compatibility: Standard axial lead configuration (CFM14JA4M70, CF14JA4M70) versus axial with radial bend capability (PCF14JT4M70)
• Procurement format requirements: Tape & Box packaging (CFM14JA4M70, CF14JA4M70) versus Cut Tape format (PCF14JT4M70)
• Inventory availability and lead time considerations
• Physical dimension constraints within the application

Frequently Asked Questions (FAQ)

Q: Can CF14JA4M70 be used as a direct replacement for CFM14JA4M70?

A: Yes. Both parts share identical electrical specifications (4.7 MOhms ±5%, 0.25W, carbon film, -55°C to 155°C operating range) and compliance certifications. The primary difference is packaging format (Tape & Box) and physical dimensions. Electrical performance and reliability characteristics are equivalent.

Q: What is the difference between CFM14JA4M70 and PCF14JT4M70?

A: Electrical specifications are identical. PCF14JT4M70 features an axial lead with radial bend capability and is supplied in Cut Tape format, whereas CFM14JA4M70 uses standard axial leads in Tape & Box packaging. The radial bend option in PCF14JT4M70 accommodates different PCB assembly techniques.

Q: Are there any compliance or certification differences between these parts?

A: No. All three parts maintain identical RoHS3 compliance status and REACH unaffected designation. No compliance or regulatory differences exist.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes, within the specified operating range of -55°C to 155°C. All three parts share identical temperature coefficient specifications (0 / -1500ppm/°C) and operating temperature ratings.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tape & Box versus Cut Tape) and supplier device package designation (Axial versus Panasert) are procurement and assembly considerations only. Electrical performance, tolerance, power rating, and temperature characteristics remain identical across all three parts.