RNF14CTC31K2 Equivalent & Substitute Parts

Part Overview

The RNF14CTC31K2 is a 31.2 kOhms ±0.25% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety construction, operating across the temperature range of -55°C to 155°C. The part is currently active in production with ROHS3 compliance and is packaged in Tape & Reel format. Substitute parts are identified when equivalent resistance values, power ratings, and mechanical dimensions are maintained while offering improved tolerance specifications or alternative packaging configurations.

Substiute Parts

RNF14CTC31K2

Stackpole Electronics IncIn Stock: 947RNF14CTC31K2 Datasheet

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RNF14BAE31K2

Stackpole Electronics IncIn Stock: 3321RNF14BAE31K2 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RNF14CTC31K2 is permissible when the following critical parameters remain constant or improve:

• Resistance value: 31.2 kOhms (exact match required)
• Power rating: 0.25W minimum (1/4W)
• Composition: Metal Film
• Package type: Axial through-hole
• Physical dimensions: 0.093" Dia x 0.250" L (2.35mm x 6.35mm)
• Operating temperature range: -55°C ~ 155°C minimum
• Compliance: ROHS3 and REACH requirements maintained

Tolerance and temperature coefficient may be improved (tightened) without affecting circuit compatibility. Packaging format (Tape & Reel versus Tape & Box) does not affect electrical performance and represents a logistical variation only.

Parameter Comparison

Engineering Selection Recommendations

The RNF14BAE31K2 serves as a direct electrical substitute for the RNF14CTC31K2. Both components maintain identical resistance values, power ratings, physical dimensions, and operating temperature ranges. The substitute part offers improved tolerance specification (±0.1% versus ±0.25%) and reduced temperature coefficient (±25ppm/°C versus ±50ppm/°C), representing enhanced performance characteristics suitable for precision circuit applications.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility. The packaging format difference (Tape & Box versus Tape & Reel) reflects supply chain logistics and does not impact electrical performance or circuit board assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can RNF14BAE31K2 replace RNF14CTC31K2 in existing designs?

A: Yes. Both components share identical resistance values (31.2 kOhms), power ratings (0.25W), physical dimensions (0.093" Dia x 0.250" L), and operating temperature ranges (-55°C ~ 155°C). The substitute offers improved tolerance and temperature coefficient specifications.

Q: What is the difference between Tape & Reel and Tape & Box packaging?

A: Tape & Reel (TR) and Tape & Box (TB) represent different packaging and delivery formats for the same component. Both formats contain identical parts with no electrical or mechanical differences. Selection depends on assembly process requirements and inventory management preferences.

Q: Are both parts RoHS compliant?

A: Yes. Both RNF14CTC31K2 and RNF14BAE31K2 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Does the improved tolerance of RNF14BAE31K2 affect circuit compatibility?

A: Improved tolerance (±0.1% versus ±0.25%) represents tighter manufacturing specifications and does not negatively affect circuit compatibility. Applications requiring precision resistance values benefit from the enhanced tolerance specification.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both components measure 0.093" Dia x 0.250" L (2.35mm x 6.35mm) and use identical axial through-hole package construction, ensuring mechanical compatibility in circuit board layouts.