RN65E2500FRE6 Equivalent & Substitute Parts

Part Overview

The RN65E2500FRE6 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 through-hole component features flame retardant coating, moisture resistance, and safety-rated construction with ±1% tolerance. The part maintains Active product status with 1461 units in current inventory.

Substitute parts are identified to address specific application requirements including enhanced tolerance specifications, increased power ratings, or alternative packaging configurations while maintaining core electrical and mechanical compatibility.

Substiute Parts

RN65E2500FRE6

Vishay DaleIn Stock: 1504RN65E2500FRE6 Datasheet

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RN65E2500BB14

Vishay DaleIn Stock: 1589RN65E2500BB14 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 RN65E2500FRE6 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Resistance value: 250 Ohms (exact match required)
• Composition: Metal Film (required for performance characteristics)
• Package type: Axial (required for mechanical fit)
• Temperature coefficient: ±25ppm/°C (required for thermal stability)
• Operating temperature range: -65°C to 175°C (required for environmental operation)
• Features: Flame Retardant Coating, Military, Moisture Resistant, Safety (required for application environment)

Allowable Variation Parameters:

• Tolerance: May be improved (tighter) from ±1% to ±0.1%
• Power rating: May be increased from 0.5W to 0.75W or higher
• Packaging format: May vary (Cut Tape to Bulk)
• Series designation: May differ within military-grade RN-series resistors

The identified substitutes maintain all mandatory compatibility criteria while offering enhanced specifications in tolerance and/or power rating.

Parameter Comparison

Engineering Selection Recommendations

RN65E2500BB14 Selection Criteria: This substitute is electrically and mechanically identical to the RN65E2500FRE6 with the exception of improved tolerance specification (±0.1% versus ±1%). Selection of RN65E2500BB14 is appropriate when circuit design requires tighter resistance tolerance while maintaining identical power rating and physical dimensions. Both parts maintain Active product status and identical military specifications per MIL-R-10509/2. Packaging differs (Bulk versus Cut Tape), which may affect procurement and assembly processes.

RN70E2500BB14 Selection Criteria: This substitute provides increased power dissipation capability (0.75W versus 0.5W) while maintaining identical resistance value and improved tolerance (±0.1%). The RN70E2500BB14 operates under MIL-R-10509/3 specification and maintains all other electrical and environmental characteristics. Selection is appropriate for applications requiring higher power handling capacity or thermal margin. Physical dimensions remain identical, ensuring mechanical compatibility in existing PCB layouts. Both parts maintain Active product status and identical compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can RN65E2500BB14 be used as a direct replacement for RN65E2500FRE6?

A: Yes. Both parts share identical resistance (250 Ohms), power rating (0.5W), physical dimensions (0.180" Dia x 0.562" L), temperature coefficient (±25ppm/°C), and operating temperature range (-65°C to 175°C). The RN65E2500BB14 offers improved tolerance (±0.1% versus ±1%). Packaging format differs (Bulk versus Cut Tape), which does not affect electrical performance.

Q: Can RN70E2500BB14 be used as a direct replacement for RN65E2500FRE6?

A: Yes, with consideration for power rating. Both parts share identical resistance (250 Ohms), physical dimensions (0.180" Dia x 0.562" L), temperature coefficient (±25ppm/°C), and operating temperature range (-65°C to 175°C). The RN70E2500BB14 provides higher power dissipation (0.75W versus 0.5W) and improved tolerance (±0.1% versus ±1%). The increased power rating does not create compatibility issues in circuits designed for 0.5W operation.

Q: What is the significance of tolerance differences between these parts?

A: Tolerance specifies the allowable deviation from the nominal 250 Ohm resistance value. RN65E2500FRE6 allows ±1% deviation (247.5 to 252.5 Ohms), while both substitutes allow ±0.1% deviation (249.75 to 250.25 Ohms). Tighter tolerance is beneficial in precision circuits but not required for general applications. Selection depends on circuit design specifications.

Q: Are there physical installation differences between these parts?

A: No. All three parts maintain identical axial package dimensions (0.180" Dia x 0.562" L / 4.57mm x 14.27mm) and two-termination configuration. PCB footprints and mounting procedures are identical.

Q: What compliance differences exist between these parts?

A: All three parts share identical RoHS non-compliant and REACH Affected status. Military specifications differ slightly: RN65E2500FRE6 and RN65E2500BB14 comply with MIL-R-10509/2, while RN70E2500BB14 complies with MIL-R-10509/3. All maintain Active product status and identical environmental certifications.

Q: Which substitute should be selected for thermal margin applications?

A: RN70E2500BB14 is appropriate for applications requiring thermal margin, as the 0.75W power rating provides 50% additional dissipation capacity compared to the 0.5W main part. This allows operation at higher ambient temperatures or with greater power dissipation without exceeding rated limits.