RN65C2500DB14 Equivalent & Substitute Parts

Part Overview

The RN65C2500DB14 is a 250 Ohm, 0.5W 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 with ±0.5% tolerance and ±50ppm/°C temperature coefficient. The part is active and in stock with 1044 units available.

Substitute parts are identified when equivalent resistance values, power ratings, and mechanical compatibility are maintained while offering improved electrical performance characteristics or higher power handling capability.

Substiute Parts

RN65C2500DB14

Vishay DaleIn Stock: 1121RN65C2500DB14 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 RN65C2500DB14 is determined by the following criteria:

Primary Compatibility Requirements:

• Resistance value: 250 Ohms (exact match required)
• Composition: Metal Film (maintained across all substitutes)
• Package: Axial configuration (maintained across all substitutes)
• Operating temperature range: -65°C to 175°C (maintained across all substitutes)
• Features: Flame Retardant Coating, Military, Moisture Resistant, Safety (maintained across all substitutes)

Allowable Variations:

• Tolerance: May be tighter (lower value) than ±0.5%
• Power rating: May be equal or higher than 0.5W
• Temperature coefficient: May be tighter (lower value) than ±50ppm/°C
• Series designation: May differ within military-grade RN-series resistors

Two substitute parts meet these criteria: RN65E2500BB14 (same power rating with improved tolerance) and RN70E2500BB14 (higher power rating with improved tolerance).

Parameter Comparison

Engineering Selection Recommendations

RN65E2500BB14 provides direct substitution with performance enhancement. This part maintains identical power rating (0.5W) and physical dimensions while offering tighter tolerance (±0.1% versus ±0.5%) and improved temperature coefficient (±25ppm/°C versus ±50ppm/°C). All military specifications, compliance certifications, and physical compatibility remain unchanged. This substitute is suitable for applications requiring higher precision without modification to circuit board layout or thermal design.

RN70E2500BB14 provides substitution with increased power handling capability. This part maintains identical resistance value and physical dimensions while offering 0.75W power rating (versus 0.5W), tighter tolerance (±0.1%), and improved temperature coefficient (±25ppm/°C). The series designation changes from MIL-R-10509/2 to MIL-R-10509/3, reflecting the higher power rating. This substitute is suitable for applications where thermal margin or power dissipation requirements exceed the original 0.5W specification. No circuit board layout modification is required due to identical physical dimensions.

All three parts maintain RoHS non-compliant and REACH Affected status. Product status is Active for all options with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can RN65E2500BB14 be used as a direct replacement for RN65C2500DB14?

A: Yes. Both parts share identical resistance (250 Ohms), power rating (0.5W), physical dimensions (0.180" Dia x 0.562" L), and military specifications. RN65E2500BB14 offers improved tolerance and temperature coefficient. No circuit modifications are required.

Q: What is the primary difference between RN65E2500BB14 and RN70E2500BB14?

A: The primary difference is power rating: RN65E2500BB14 is rated 0.5W while RN70E2500BB14 is rated 0.75W. Both offer ±0.1% tolerance and ±25ppm/°C temperature coefficient. Physical dimensions are identical. The series designation differs (MIL-R-10509/2 versus MIL-R-10509/3) reflecting the power rating difference.

Q: Are all three parts mechanically compatible in the same circuit board layout?

A: Yes. All three parts share identical physical dimensions (0.180" Dia x 0.562" L / 4.57mm x 14.27mm) and axial package configuration. No board layout modification is required when substituting between these parts.

Q: Do the substitute parts maintain military compliance?

A: Yes. Both RN65E2500BB14 and RN70E2500BB14 are military-grade resistors with flame retardant coating, moisture resistance, and safety features. They comply with MIL-R-10509 specifications (series 2 and 3 respectively).

Q: What is the tolerance improvement offered by the substitute parts?

A: RN65C2500DB14 has ±0.5% tolerance. Both substitute parts (RN65E2500BB14 and RN70E2500BB14) offer ±0.1% tolerance, representing a 5-fold improvement in precision.

Q: Should RN70E2500BB14 be selected over RN65E2500BB14?

A: Selection depends on application requirements. Choose RN70E2500BB14 if the circuit requires power dissipation exceeding 0.5W or if thermal margin is a design consideration. Choose RN65E2500BB14 if the original 0.5W rating is sufficient and cost optimization is a factor.

Q: Are there any compliance differences between the three parts?

A: All three parts share identical RoHS non-compliant and REACH Affected status. No compliance advantage exists between the options.