RN55E4752CBSL Equivalent & Substitute Parts

Part Overview

The RN55E4752CBSL is a 47.5 kOhms ±0.25% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. This component is manufactured by Vishay Dale and complies with military specification MIL-R-10509/7. The part features flame retardant coating, moisture resistance, and safety-rated construction suitable for military and high-reliability applications. As an active product with 732 units in stock, substitute parts are identified to provide options for design flexibility, inventory management, or performance optimization within the same functional category.

Substiute Parts

RN55E4752CBSL

Vishay DaleIn Stock: 829RN55E4752CBSL Datasheet

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RN55E4752BB14

Vishay DaleIn Stock: 1696RN55E4752BB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN55E4752CBSL is determined by the following critical parameters:

• Resistance Value: Must be 47.5 kOhms
• Power Rating: Must be 0.125W (1/8W) minimum
• Package Configuration: Must be Axial
• Composition: Must be Metal Film
• Operating Temperature Range: Must support -65°C to 175°C
• Military Compliance: Must conform to MIL-R-10509/7 series specification
• Physical Dimensions: Must match 0.090" Dia x 0.240" L (2.29mm x 6.10mm)

The identified substitute part RN55E4752BB14 meets all these criteria. The primary distinction is tolerance specification: the substitute provides ±0.1% tolerance compared to the main part's ±0.25% tolerance, representing an upgrade in precision while maintaining all other electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both RN55E4752CBSL and RN55E4752BB14 are active products manufactured by Vishay Dale within the military-grade RN55 series. Selection between these parts depends on tolerance requirements:

• RN55E4752CBSL is appropriate for applications where ±0.25% tolerance meets circuit specifications and cost optimization is a priority.
• RN55E4752BB14 is appropriate for applications requiring tighter tolerance control at ±0.1%, providing enhanced precision for precision analog circuits, measurement instrumentation, or high-accuracy signal conditioning.

Both parts maintain identical electrical performance across temperature range, power dissipation, and environmental specifications. Physical footprint and PCB layout compatibility are identical. Compliance status (RoHS non-compliant, REACH Affected) is equivalent for both parts.

Frequently Asked Questions (FAQ)

Q: Can RN55E4752BB14 be used as a direct replacement for RN55E4752CBSL?

A: Yes. RN55E4752BB14 is electrically and mechanically compatible. The substitute maintains identical resistance value, power rating, package configuration, temperature range, and military specification compliance. The tolerance upgrade from ±0.25% to ±0.1% does not create incompatibility; it provides improved precision.

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. RN55E4752CBSL specifies ±0.25% tolerance, while RN55E4752BB14 specifies ±0.1% tolerance. All other parameters—resistance value, power rating, composition, package type, temperature coefficient, operating temperature range, and military compliance—are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts share the same axial package configuration with dimensions of 0.090" Dia x 0.240" L (2.29mm x 6.10mm). PCB layout and mounting considerations are identical.

Q: Do both parts meet the same military specifications?

A: Yes. Both RN55E4752CBSL and RN55E4752BB14 conform to MIL-R-10509/7 military specification and are part of the RN55 series. Both feature flame retardant coating, moisture resistance, and safety-rated construction.

Q: What is the temperature coefficient for both parts?

A: Both parts specify ±25ppm/°C temperature coefficient across the operating range of -65°C to 175°C.

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

A: No. Both parts share identical RoHS non-compliant and REACH Affected status. Regulatory and compliance considerations are equivalent.