RN65C1503FRSL Equivalent & Substitute Parts

Part Overview

The RN65C1503FRSL is a 150 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Vishay Dale. This component is part of the Military MIL-R-10509/2 series and features flame retardant coating, moisture resistance, and safety-grade construction. The part is currently active in production with 726 units in stock. Substitute parts are identified when equivalent electrical and mechanical specifications are required but alternative packaging, power ratings, or series designations are acceptable for the application.

Substiute Parts

RN65C1503FRSL

Vishay DaleIn Stock: 809RN65C1503FRSL Datasheet

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RN70C1503FB14

Vishay DaleIn Stock: 934RN70C1503FB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RN70C1503FB14 qualifies as a substitute based on the following electrical and mechanical equivalencies:

Matching parameters: 150 kOhms resistance value, ±1% tolerance, ±50ppm/°C temperature coefficient, -65°C to 175°C operating temperature range, metal film composition, axial package configuration, flame retardant coating, military grade, and moisture resistant features.

Differing parameters: Power rating increases from 0.5W to 0.75W (3/4W); series designation changes from MIL-R-10509/2 (RN65) to MIL-R-10509/3 (RN70); packaging format changes from Tape & Reel to Bulk.

The higher power rating of the substitute part provides design margin and is backward compatible with applications requiring the original 0.5W specification. Both parts maintain identical physical dimensions (0.180" Dia x 0.562" L) and electrical characteristics critical to circuit function.

Parameter Comparison

Engineering Selection Recommendations

Both the RN65C1503FRSL and RN70C1503FB14 are active production components from Vishay Dale with identical electrical performance and physical form factors. Selection between these parts depends on application-specific requirements:

The RN65C1503FRSL is appropriate when the 0.5W power rating exactly matches circuit dissipation calculations and Tape & Reel packaging is required for automated assembly processes.

The RN70C1503FB14 is appropriate when higher power dissipation margin is beneficial, when bulk packaging is acceptable for manual assembly or inventory management, or when MIL-R-10509/3 series compliance is specified. The increased power rating does not degrade performance in applications designed for the lower-rated part.

Both parts maintain RoHS non-compliant status and REACH Affected designation. ECCN classification is EAR99 for both variants.

Frequently Asked Questions (FAQ)

Q: Can RN70C1503FB14 directly replace RN65C1503FRSL in existing designs?

A: Yes. The substitute part maintains identical resistance, tolerance, temperature coefficient, operating temperature range, and physical dimensions. The higher 0.75W power rating is backward compatible with 0.5W applications and provides additional thermal margin.

Q: What is the significance of the series change from RN65 to RN70?

A: The series designation reflects the MIL-R-10509 specification level. RN65 corresponds to MIL-R-10509/2 (0.5W), and RN70 corresponds to MIL-R-10509/3 (0.75W). Both series maintain equivalent electrical characteristics and military-grade construction.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Bulk packaging formats do not alter electrical specifications. Packaging selection is driven by assembly process requirements and inventory management practices.

Q: Are there compliance or certification differences between these parts?

A: Both parts share identical RoHS status (non-compliant), REACH status (Affected), and ECCN classification (EAR99). No compliance advantage exists between the two variants.

Q: What physical space considerations apply to substitution?

A: Both parts have identical dimensions (0.180" Dia x 0.562" L). No PCB layout or mechanical clearance modifications are required when substituting between these parts.