RNC50K2002FRRSL Equivalent & Substitute Parts

Part Overview

The RNC50K2002FRRSL is a 20 kOhms ±1% metal film axial through-hole resistor rated at 0.1W (1/10W) manufactured by Vishay Dale. This component is part of the Military MIL-PRF-55182/07 RNC50 series and features moisture-resistant, weldable construction suitable for military and high-reliability applications. The part is currently active with 714 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, power rating, composition) and mechanical compatibility (axial package, physical dimensions) while allowing for improvements in tolerance, temperature coefficient, and failure rate characteristics.

Substiute Parts

RNC50K2002FRRSL

Vishay DaleIn Stock: 757RNC50K2002FRRSL Datasheet

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RNC50H2002FSRE6

Vishay DaleIn Stock: 1303RNC50H2002FSRE6 Datasheet

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RNC50J2002BSB14

Vishay DaleIn Stock: 1206RNC50J2002BSB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNC50K2002FRRSL are qualified based on the following criteria:

Core Electrical Compatibility: All substitute parts maintain the same 20 kOhms resistance value, 0.1W power rating, and metal film composition. These parameters are non-negotiable for functional equivalence.

Mechanical Compatibility: All substitutes use the axial package configuration with identical physical dimensions (0.070" Dia x 0.150" L), ensuring direct board-level compatibility without layout modifications.

Temperature Performance: All parts operate across the -65°C ~ 175°C range, maintaining thermal performance requirements.

Tolerance and Precision: Substitute parts may feature equal or tighter tolerance specifications (±1%, ±0.1%) than the main part. Tighter tolerances represent performance improvements without functional degradation.

Reliability Metrics: Substitute parts may feature improved failure rates (S-class at 0.001% versus R-class at 0.01%) and lower temperature coefficients (±25ppm/°C to ±50ppm/°C versus ±100ppm/°C), indicating enhanced long-term stability.

Packaging Format: Substitutes are available in different packaging configurations (Tape & Reel, Cut Tape, Bulk) to accommodate different procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

RNC50H2002FSRE6 (Cut Tape): This substitute offers improved temperature coefficient performance (±50ppm/°C) and enhanced reliability (S-class failure rate) while maintaining ±1% tolerance. The Cut Tape packaging format supports moderate-volume assembly operations. This part is suitable for applications requiring better temperature stability than the main part without the tighter tolerance requirements of the RNC50J2002BSB14.

RNC50J2002BSB14 (Bulk): This substitute provides the highest precision specification with ±0.1% tolerance and the lowest temperature coefficient (±25ppm/°C), combined with S-class failure rate reliability. The Bulk packaging format is appropriate for high-volume manufacturing or custom assembly workflows. This part is suitable for precision circuit applications where tighter component tolerances directly improve overall circuit performance.

All three parts maintain identical electrical function, mechanical compatibility, and military-grade construction. Selection between them depends on packaging requirements, tolerance specifications needed for the application, and temperature stability demands.

Frequently Asked Questions (FAQ)

Q: Can RNC50H2002FSRE6 or RNC50J2002BSB14 be used as direct replacements for RNC50K2002FRRSL?

A: Yes. Both substitute parts are electrically and mechanically compatible. They share identical resistance values (20 kOhms), power ratings (0.1W), physical dimensions (0.070" Dia x 0.150" L), and axial package configuration. The substitutes offer equal or improved performance characteristics in tolerance, temperature coefficient, and failure rate.

Q: What is the difference between the three parts?

A: The primary differences are tolerance specification, temperature coefficient, failure rate classification, and packaging format. RNC50K2002FRRSL features ±1% tolerance and ±100ppm/°C temperature coefficient in Tape & Reel format. RNC50H2002FSRE6 improves to ±50ppm/°C temperature coefficient in Cut Tape format. RNC50J2002BSB14 provides the tightest tolerance (±0.1%) and lowest temperature coefficient (±25ppm/°C) in Bulk format. All three maintain the same operating temperature range and military series classification.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR), Cut Tape (CT), and Bulk packaging formats are logistics and assembly variations only. They do not affect the electrical or thermal characteristics of the resistor. Packaging selection depends on manufacturing process requirements and volume needs.

Q: Are all three parts RoHS compliant?

A: No. All three parts are RoHS non-compliant, consistent with their military-grade metal film construction and MIL-PRF-55182/07 series classification.

Q: What does the failure rate classification mean?

A: Failure rate classification indicates long-term reliability under specified conditions. R-class (0.01%) represents standard military reliability. S-class (0.001%) represents enhanced reliability with tighter manufacturing controls. RNC50H2002FSRE6 and RNC50J2002BSB14 both feature S-class reliability, indicating superior long-term performance compared to the R-class RNC50K2002FRRSL.

Q: Can I substitute based on packaging format alone?

A: No. Packaging format is a logistics consideration only. Electrical and mechanical parameters (resistance, tolerance, power rating, physical dimensions, temperature range) must match or improve for valid substitution. All three parts in this reference meet these core requirements.