RN55C1001CBSL Equivalent & Substitute Parts

Part Overview

The RN55C1001CBSL is a 1 kOhms ±0.25% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. Manufactured by Vishay Dale under the military-grade RN55 series per MIL-R-10509/7 specification, this component features flame retardant coating, moisture resistance, and safety certification suitable for military and high-reliability applications. The part is currently active in production with 1121 pieces in stock inventory.

Equivalent and substitute parts are identified based on matching electrical characteristics (resistance value, power rating, tolerance, temperature coefficient) and mechanical compatibility (axial package, physical dimensions) while maintaining compliance with military specifications and environmental standards.

Substiute Parts

RN55C1001CBSL

Vishay DaleIn Stock: 1174RN55C1001CBSL Datasheet

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RN55C1001BB14

Vishay DaleIn Stock: 2318RN55C1001BB14 Datasheet

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RN55E1001BB14

Vishay DaleIn Stock: 1946RN55E1001BB14 Datasheet

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RN55E1001BRE6

Vishay DaleIn Stock: 1169RN55E1001BRE6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN55C1001CBSL are qualified based on the following criteria:

Electrical Compatibility: All substitute parts maintain the same resistance value (1 kOhms) and power rating (0.125W). Tolerance specifications may be tighter (±0.1% vs. ±0.25%), which represents an upgrade in precision without affecting functional compatibility.

Mechanical Compatibility: All substitute parts use identical axial package configuration with matching physical dimensions (0.090" Dia × 0.240" L), ensuring direct mechanical interchangeability in circuit board layouts.

Environmental & Military Compliance: All substitute parts conform to MIL-R-10509/7 military specification, feature identical flame retardant coating, moisture resistance, and safety certifications. Operating temperature range remains -65°C to 175°C across all variants.

Temperature Coefficient Variation: Substitute parts RN55E1001BB14 and RN55E1001BRE6 feature ±25ppm/°C temperature coefficient compared to the main part's ±50ppm/°C, representing improved thermal stability while maintaining full functional compatibility.

Packaging Format: RN55E1001BRE6 is supplied in Cut Tape (CT) format versus Bulk packaging of other variants, affecting procurement and handling but not electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (RN55C1001BB14, RN55E1001BB14, RN55E1001BRE6) are direct functional equivalents to the RN55C1001CBSL and are suitable for replacement in applications requiring MIL-R-10509/7 military-grade resistors.

RN55C1001BB14 provides tolerance upgrade to ±0.1% while maintaining the original ±50ppm/°C temperature coefficient. This variant is appropriate for applications where improved precision is beneficial without requiring enhanced thermal stability.

RN55E1001BB14 offers both tolerance upgrade (±0.1%) and improved temperature coefficient (±25ppm/°C), making it suitable for precision circuits with tighter thermal performance requirements. This part maintains Bulk packaging format consistent with standard procurement workflows.

RN55E1001BRE6 provides identical electrical performance to RN55E1001BB14 but is supplied in Cut Tape (CT) format. Selection of this variant depends on procurement requirements and assembly process compatibility with tape-and-reel handling systems.

All substitute parts maintain active production status, full military compliance, and identical environmental certifications (flame retardant coating, moisture resistance, safety features). RoHS non-compliance status is consistent across all variants.

Frequently Asked Questions (FAQ)

Q: Can RN55C1001BB14 be used as a direct replacement for RN55C1001CBSL?

A: Yes. Both parts share identical resistance (1 kOhms), power rating (0.125W), temperature coefficient (±50ppm/°C), operating temperature range (-65°C to 175°C), and axial package dimensions. The RN55C1001BB14 features tighter tolerance (±0.1% vs. ±0.25%), which is a performance upgrade with no compatibility issues.

Q: What is the difference between RN55E1001BB14 and RN55E1001BRE6?

A: Both parts are electrically identical with 1 kOhms resistance, ±0.1% tolerance, and ±25ppm/°C temperature coefficient. The primary difference is packaging format: RN55E1001BB14 is supplied in Bulk, while RN55E1001BRE6 is supplied in Cut Tape (CT). Selection depends on assembly line requirements and procurement preferences.

Q: Are all substitute parts MIL-R-10509/7 compliant?

A: Yes. All substitute parts (RN55C1001BB14, RN55E1001BB14, RN55E1001BRE6) conform to MIL-R-10509/7 military specification and feature identical flame retardant coating, moisture resistance, and safety certifications as the main part RN55C1001CBSL.

Q: Which substitute part offers the best thermal stability?

A: RN55E1001BB14 and RN55E1001BRE6 both feature ±25ppm/°C temperature coefficient, compared to ±50ppm/°C for RN55C1001CBSL and RN55C1001BB14. This represents improved thermal stability across the full operating range of -65°C to 175°C.

Q: Can these parts be used interchangeably in high-reliability applications?

A: Yes. All substitute parts maintain active production status, full military compliance, and identical environmental certifications. Interchangeability is determined by circuit requirements for tolerance and temperature coefficient specifications rather than part availability or compliance status.

Q: What is the inventory status of substitute parts?

A: RN55C1001BB14 has 2216 pieces in stock, RN55E1001BB14 has 1881 pieces in stock, and RN55E1001BRE6 has 1091 pieces in stock. All parts are new original components with active production status.