Equivalent & Substitute Parts for RN55C1001CB14

Part Overview

The RN55C1001CB14 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, this component is part of the military-grade RN55 series compliant with MIL-R-10509/7 specifications. The part features flame retardant coating, moisture resistance, and safety-rated construction suitable for military and high-reliability applications. Substitute parts are identified based on matching resistance value, power rating, package type, and operating temperature range while allowing for tolerance and temperature coefficient improvements.

Substiute Parts

RN55C1001CB14

Vishay DaleIn Stock: 957RN55C1001CB14 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 RN55C1001CB14 are qualified based on the following criteria:

Core Matching Parameters:

• Resistance value: 1 kOhms (exact match required)
• Power rating: 0.125W, 1/8W (exact match required)
• Package type: Axial (exact match required)
• Operating temperature range: -65°C to 175°C (exact match required)
• Composition: Metal Film (exact match required)
• Series compliance: Military, MIL-R-10509/7, RN55 (exact match required)

Allowable Variations:

• Tolerance: May be equal to or tighter than ±0.25%
• Temperature coefficient: May be equal to or lower than ±50ppm/°C
• Packaging format: Bulk or Cut Tape (CT) formats are interchangeable for component selection

All identified substitutes maintain identical electrical performance specifications and mechanical dimensions while offering equal or improved tolerance and temperature stability characteristics.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and are manufactured by Vishay Dale within the military-grade RN55 series. Selection between RN55C1001CB14 and its substitutes depends on application-specific tolerance and temperature stability requirements:

RN55C1001CB14 is suitable for applications where ±0.25% tolerance and ±50ppm/°C temperature coefficient meet design specifications.

RN55C1001BB14 provides improved tolerance of ±0.1% while maintaining the same temperature coefficient of ±50ppm/°C, available in Bulk packaging.

RN55E1001BB14 offers both improved tolerance of ±0.1% and enhanced temperature coefficient of ±25ppm/°C, available in Bulk packaging.

RN55E1001BRE6 provides identical electrical specifications to RN55E1001BB14 with improved tolerance and temperature coefficient, available in Cut Tape (CT) packaging format for automated assembly processes.

All parts comply with MIL-R-10509/7 military specifications and maintain identical mechanical dimensions, operating temperature range, and physical construction features.

Frequently Asked Questions (FAQ)

Q: Can RN55C1001BB14 be used as a direct replacement for RN55C1001CB14?

A: Yes. RN55C1001BB14 is a direct substitute with identical resistance, power rating, package type, and operating temperature range. The tolerance is improved to ±0.1% compared to ±0.25%, making it suitable for applications requiring higher precision.

Q: What is the difference between RN55E1001BB14 and RN55E1001BRE6?

A: Both parts have identical electrical specifications: 1 kOhms ±0.1% tolerance and ±25ppm/°C temperature coefficient. The primary difference is packaging format. RN55E1001BB14 is supplied in Bulk packaging, while RN55E1001BRE6 is supplied in Cut Tape (CT) format for automated assembly operations.

Q: Are all substitute parts compatible with the same PCB footprint?

A: Yes. All substitute parts maintain identical axial package dimensions of 0.090" diameter by 0.240" length (2.29mm x 6.10mm), ensuring mechanical and electrical compatibility with existing PCB designs.

Q: What does the tolerance improvement from ±0.25% to ±0.1% mean for circuit performance?

A: Tighter tolerance reduces resistor value variation across production batches. For a 1 kOhms resistor, ±0.25% tolerance allows values between 999.75 Ohms and 1000.25 Ohms, while ±0.1% tolerance restricts values between 999.9 Ohms and 1000.1 Ohms. This improvement is beneficial for precision analog circuits and measurement applications.

Q: Can I substitute RN55C1001CB14 with RN55E1001BRE6 in a military application?

A: Yes. RN55E1001BRE6 maintains full compliance with MIL-R-10509/7 specifications and military-grade construction. The improved tolerance and temperature coefficient provide enhanced performance characteristics suitable for military applications.

Q: What is the significance of the temperature coefficient difference between ±50ppm/°C and ±25ppm/°C?

A: Temperature coefficient indicates resistor value change per degree Celsius. A lower temperature coefficient (±25ppm/°C) means the resistor value remains more stable across the operating temperature range of -65°C to 175°C, reducing drift in temperature-sensitive circuits.