CF14JA91R0 Equivalent & Substitute Parts

Part Overview

The CF14JA91R0 is a 91 Ohm ±5% 1/4W axial through-hole resistor manufactured by Stackpole Electronics Inc. This carbon film resistor features flame retardant coating and safety characteristics, designed for general-purpose electronic applications requiring reliable resistance values across industrial and commercial temperature ranges. The part is currently active in production with ROHS3 compliance and maintains consistent electrical performance across its operating temperature range of -55°C to 155°C. Equivalent and substitute parts are identified to support design flexibility, inventory optimization, and supply chain continuity.

Substiute Parts

CF14JA91R0

Stackpole Electronics IncIn Stock: 1010CF14JA91R0 Datasheet

Current PartRFQ

CFM12JT91R0

Stackpole Electronics IncIn Stock: 13119CFM12JT91R0 Datasheet

UpgradeRFQ

CFM14JA91R0

Stackpole Electronics IncIn Stock: 10780CFM14JA91R0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CF14JA91R0 is determined by the following critical parameters: resistance value (91 Ohms), tolerance (±5%), composition (carbon film), package type (axial), temperature coefficient (0 / -400ppm/°C), and operating temperature range (-55°C to 155°C). All identified substitutes maintain these core electrical and mechanical specifications.

Two substitute parts are qualified:

CFM12JT91R0 (Upgrade Substitute): Maintains identical resistance, tolerance, composition, and temperature characteristics. Differs in power rating (0.5W vs. 0.25W) and physical dimensions. The higher power rating provides enhanced thermal performance and component longevity in applications subject to sustained current loads.

CFM14JA91R0 (Manufacturer Recommended Substitute): Maintains identical resistance, tolerance, power rating, composition, and temperature characteristics. Differs in physical dimensions and packaging format. This part represents the manufacturer's direct equivalent within the CFM series.

Parameter Comparison

Engineering Selection Recommendations

All three parts—CF14JA91R0, CFM12JT91R0, and CFM14JA91R0—are manufactured by Stackpole Electronics Inc and maintain active production status. Each part carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.

CF14JA91R0 (Original Specification): Select this part when the original design specifications require the CF series designation and 1/4W power rating with the specified physical dimensions (0.091" Dia x 0.236" L).

CFM12JT91R0 (Upgrade Substitute): Select this part when circuit design permits a higher power rating (0.5W) and when enhanced thermal performance is beneficial. The increased power dissipation capability provides additional design margin in applications with variable or sustained current loads. Physical dimensions differ (0.091" Dia x 0.256" L), requiring verification of PCB layout compatibility.

CFM14JA91R0 (Manufacturer Recommended): Select this part as the direct manufacturer equivalent. It maintains the 1/4W power rating and identical electrical characteristics while offering the CFM series designation. Physical dimensions differ (0.067" Dia x 0.130" L), requiring PCB layout verification.

Frequently Asked Questions (FAQ)

Q: Can CFM12JT91R0 be used as a direct replacement for CF14JA91R0?

A: CFM12JT91R0 is electrically compatible, maintaining identical resistance, tolerance, and temperature characteristics. However, the higher power rating (0.5W vs. 0.25W) and different physical dimensions (0.091" Dia x 0.256" L vs. 0.091" Dia x 0.236" L) require PCB layout verification before substitution.

Q: What is the difference between CF14JA91R0 and CFM14JA91R0?

A: Both parts maintain identical electrical specifications (91 Ohms ±5%, 0.25W, carbon film, -55°C to 155°C). The primary differences are series designation (CF vs. CFM), physical dimensions (0.091" Dia x 0.236" L vs. 0.067" Dia x 0.130" L), and packaging format (Tape & Box vs. Cut Tape). CFM14JA91R0 is the manufacturer's recommended equivalent.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. CF14JA91R0, CFM12JT91R0, and CFM14JA91R0 are all ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: What packaging formats are available?

A: CF14JA91R0 is supplied in Tape & Box (TB) format. CFM12JT91R0 and CFM14JA91R0 are supplied in Cut Tape (CT) format. Packaging selection depends on assembly process requirements and inventory management practices.

Q: Can physical dimension differences affect circuit performance?

A: Physical dimensions do not affect electrical performance. However, different dimensions may impact PCB layout, thermal dissipation characteristics, and mechanical assembly. Verify PCB footprint compatibility before substitution.