RNF14FTC1M00 Equivalent & Substitute Parts

Part Overview

The RNF14FTC1M00 is a 1 MOhms ±1% 0.25W axial through-hole resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for general-purpose electronic applications requiring precision resistance values in compact form factors. The part is currently active in production with ROHS3 compliance and is suitable for applications across the -55°C to 155°C operating temperature range. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement or functional upgrade within system design constraints.

Substiute Parts

RNF14FTC1M00

Stackpole Electronics IncIn Stock: 718RNF14FTC1M00 Datasheet

Current PartRFQ

RNMF14FTC1M00

Stackpole Electronics IncIn Stock: 46002RNMF14FTC1M00 Datasheet

MFR RecommendedRFQ

CMF551M0000FHEB

Vishay DaleIn Stock: 8830CMF551M0000FHEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF14FTC1M00 are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Resistance value: 1 MOhms
• Tolerance: ±1%
• Composition: Metal Film
• Temperature Coefficient: ±50ppm/°C
• Package: Axial through-hole
• Compliance: ROHS3 Compliant

Allowable Variations:

• Power rating may be equal or higher (0.25W minimum)
• Operating temperature range may be equal or extended
• Physical dimensions may vary within axial package constraints
• Packaging format (Tape & Reel vs. Cut Tape) does not affect electrical equivalence
• Additional features (moisture resistance) do not preclude substitution

The RNF14FTC1M00 has two qualified substitutes: the RNMF14FTC1M00 (manufacturer-recommended equivalent) and the CMF551M0000FHEB (upgrade option with enhanced power rating).

Parameter Comparison

Engineering Selection Recommendations

RNMF14FTC1M00 (Manufacturer-Recommended Equivalent): This part is the direct electrical equivalent to the RNF14FTC1M00, manufactured by the same supplier (Stackpole Electronics Inc). Both parts share identical electrical specifications: 1 MOhms resistance, ±1% tolerance, 0.25W power rating, ±50ppm/°C temperature coefficient, and -55°C to 155°C operating range. The RNMF14FTC1M00 is part of the RNMF (Mini) series and features a smaller physical footprint (0.070" Dia x 0.130" L versus 0.093" Dia x 0.250" L). This substitute is suitable for applications where space constraints favor compact component geometry. Both parts maintain ROHS3 compliance and identical safety/flame retardant features. Packaging differs (Cut Tape versus Tape & Reel), which does not affect electrical performance.

CMF551M0000FHEB (Upgrade Option): This Vishay Dale CMF series resistor provides an electrical upgrade path with enhanced specifications. While maintaining the core 1 MOhms ±1% resistance and ±50ppm/°C temperature coefficient, the CMF551M0000FHEB offers doubled power dissipation capability (0.5W versus 0.25W) and extended operating temperature range (-55°C to 175°C versus -55°C to 155°C). The part includes moisture-resistant construction in addition to flame retardant coating. Physical dimensions are comparable (0.090" Dia x 0.240" L). This substitute is appropriate for applications requiring higher thermal margin or extended temperature operation. ROHS3 compliance is maintained.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC1M00 be used as a direct replacement for RNF14FTC1M00?

A: Yes. Both parts have identical electrical specifications: 1 MOhms ±1% resistance, 0.25W power rating, ±50ppm/°C temperature coefficient, and -55°C to 155°C operating range. The primary difference is physical size; the RNMF14FTC1M00 is smaller. Direct substitution is valid provided PCB layout accommodates the compact dimensions (0.070" Dia x 0.130" L).

Q: What are the advantages of using CMF551M0000FHEB over RNF14FTC1M00?

A: The CMF551M0000FHEB provides two key enhancements: doubled power rating (0.5W versus 0.25W) and extended operating temperature range (up to 175°C versus 155°C). Moisture-resistant construction is an additional feature. These upgrades are beneficial in high-dissipation or high-temperature applications. Electrical specifications (resistance, tolerance, temperature coefficient) remain equivalent.

Q: Are there any compatibility concerns with axial package dimensions?

A: Axial package dimensions vary among the three parts. The RNMF14FTC1M00 is significantly smaller (0.070" Dia x 0.130" L) compared to the RNF14FTC1M00 (0.093" Dia x 0.250" L) and CMF551M0000FHEB (0.090" Dia x 0.240" L). PCB layout and lead spacing must accommodate the selected part. Smaller components may require design verification for mechanical clearance and thermal management.

Q: Do packaging format differences (Tape & Reel versus Cut Tape) affect substitution?

A: No. Packaging format (Tape & Reel versus Cut Tape) is a supply chain and assembly consideration only. It does not affect electrical performance or component compatibility. Selection should be based on manufacturing process requirements and inventory management.

Q: Are all three parts ROHS3 compliant?

A: Yes. RNF14FTC1M00, RNMF14FTC1M00, and CMF551M0000FHEB are all ROHS3 compliant. Regulatory compliance is maintained across all substitute options.

Q: Which substitute should be selected for space-constrained applications?

A: The RNMF14FTC1M00 is the appropriate choice for space-constrained designs. Its compact axial dimensions (0.070" Dia x 0.130" L) provide the smallest footprint while maintaining full electrical equivalence to the RNF14FTC1M00.

Q: Which substitute should be selected for high-temperature applications?

A: The CMF551M0000FHEB is suitable for extended temperature operation, with an upper operating limit of 175°C compared to 155°C for the RNF14FTC1M00. This part is appropriate when thermal margin or elevated ambient conditions are design factors.