Equivalent & Substitute Parts for RN65D2500FRE6

Part Overview

The RN65D2500FRE6 is a 250 Ohm, 1/2W metal film axial resistor manufactured by Vishay Dale, designed for military applications per MIL-R-10509/2 specification. This component features flame retardant coating, moisture resistance, and safety-rated construction suitable for high-reliability electronic assemblies. The part is currently active in production with 1050 pieces available in Tape & Reel packaging. Equivalent and substitute parts are identified to support procurement flexibility, packaging format alternatives, and enhanced performance specifications where applicable.

Substiute Parts

RN65D2500FRE6

Vishay DaleIn Stock: 1146RN65D2500FRE6 Datasheet

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RN65E2500BB14

Vishay DaleIn Stock: 1589RN65E2500BB14 Datasheet

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RN65E2500FRE6

Vishay DaleIn Stock: 1504RN65E2500FRE6 Datasheet

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RN70E2500BB14

Vishay DaleIn Stock: 2320RN70E2500BB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN65D2500FRE6 is determined by the following core parameters:

Mandatory Matching Parameters:

• Resistance value: 250 Ohms
• Composition: Metal Film
• Package type: Axial
• Operating temperature range: -65°C to 175°C minimum
• Military specification compliance: MIL-R-10509 series
• Features: Flame retardant coating, moisture resistant, safety rated

Allowable Variation Parameters:

• Tolerance: May be equal or tighter (±1% or better)
• Power rating: May be equal or higher (0.5W or greater)
• Temperature coefficient: May be equal or lower (±100ppm/°C or better)
• Packaging format: Tape & Reel, Cut Tape, or Bulk acceptable for equivalent substitution
• Inventory availability: No restriction

Three substitute parts meet these criteria and are grouped as follows:

Group 1 - Enhanced Tolerance, Same Power Rating: RN65E2500BB14 (±0.1% tolerance, Bulk packaging)

Group 2 - Same Specifications, Alternative Packaging: RN65E2500FRE6 (±1% tolerance, Cut Tape packaging)

Group 3 - Enhanced Tolerance and Power Rating: RN70E2500BB14 (±0.1% tolerance, 0.75W power rating, Bulk packaging)

Parameter Comparison

Engineering Selection Recommendations

RN65E2500BB14 Selection Criteria: Use this substitute when procurement requires enhanced tolerance performance (±0.1% vs ±1%) while maintaining identical power rating and temperature specifications. Suitable for applications where tighter resistance tolerance improves circuit performance. Bulk packaging format requires manual handling or tape conversion for automated assembly processes.

RN65E2500FRE6 Selection Criteria: Use this substitute as a direct functional equivalent when packaging format flexibility is required. Cut Tape format provides an intermediate option between Tape & Reel and Bulk. Maintains identical electrical specifications and military series compliance as the main part.

RN70E2500BB14 Selection Criteria: Use this substitute when circuit design permits higher power dissipation capability (0.75W vs 0.5W) and enhanced tolerance (±0.1%) is beneficial. The RN70 series operates under MIL-R-10509/3 specification. This part provides design margin for thermal stress and improved resistance stability. Bulk packaging format applies.

All substitute parts maintain RoHS non-compliant status, REACH affected classification, and identical physical dimensions (0.180" Dia x 0.562" L). Selection should be based on specific assembly process requirements, tolerance specifications, and thermal design margins.

Frequently Asked Questions (FAQ)

Q: Can RN70E2500BB14 replace RN65D2500FRE6 in any circuit?

A: RN70E2500BB14 is electrically compatible as a substitute. The higher power rating (0.75W vs 0.5W) provides additional thermal margin and does not degrade circuit performance. However, physical board layout must accommodate the component, and procurement specifications must permit MIL-R-10509/3 series substitution for MIL-R-10509/2 applications.

Q: What is the difference between Tape & Reel, Cut Tape, and Bulk packaging?

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, optimized for high-speed automated assembly. Cut Tape (CT) provides the same tape format in shorter lengths for lower-volume production. Bulk packaging supplies loose components in trays or bags, requiring manual placement or custom tape conversion for automated processes.

Q: Are the substitute parts pin-compatible with the main part?

A: Yes. All listed substitutes are axial through-hole resistors with identical physical dimensions (0.180" Dia x 0.562" L) and two terminations. Direct board-level substitution is mechanically and electrically compatible.

Q: Does tolerance improvement affect circuit design?

A: RN65E2500BB14 and RN70E2500BB14 offer ±0.1% tolerance versus ±1% for the main part. Tighter tolerance reduces resistance variation across production batches, improving circuit accuracy in precision applications. No circuit redesign is required; improved tolerance is a performance enhancement.

Q: What is the temperature coefficient significance?

A: Temperature coefficient (±100ppm/°C for main part, ±25ppm/°C for substitutes) indicates resistance change per degree Celsius. Lower values provide better stability across the -65°C to 175°C operating range. Substitute parts with ±25ppm/°C offer superior thermal stability in temperature-sensitive applications.

Q: Can these parts be used interchangeably in military applications?

A: All parts comply with MIL-R-10509 military specifications. RN65D2500FRE6, RN65E2500BB14, and RN65E2500FRE6 operate under MIL-R-10509/2. RN70E2500BB14 operates under MIL-R-10509/3. Substitution in military applications must be verified against specific procurement documentation and design approval requirements.