RN55C2552FRE6 Equivalent & Substitute Parts

Part Overview

The RN55C2552FRE6 is a 25.5 kOhms ±1% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. This component is part of the Vishay Dale RN55 military-grade series, featuring flame retardant coating and moisture resistance suitable for demanding applications. The part is currently active in production with 946 units in stock. Substitute parts are identified to provide alternatives with improved tolerance specifications or enhanced availability while maintaining core electrical and mechanical compatibility.

Substiute Parts

RN55C2552FRE6

Vishay DaleIn Stock: 963RN55C2552FRE6 Datasheet

Current PartRFQ

RN55E2552BRE6

Vishay DaleIn Stock: 2021RN55E2552BRE6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN55C2552FRE6 is determined by the following critical parameters:

• Resistance Value: Must be 25.5 kOhms (exact match required)
• Power Rating: Must be 0.125W (1/8W) minimum
• Package Configuration: Must be Axial through-hole
• Composition: Must be Metal Film
• Operating Temperature Range: Must support -65°C to 175°C minimum
• Series Compliance: Must belong to RN55 military series with MIL-R-10509/7 qualification

The RN55E2552BRE6 qualifies as a direct substitute because it maintains identical resistance, power rating, package type, composition, temperature range, and military series designation. The substitute offers improved tolerance specification (±0.1% versus ±1%) and lower temperature coefficient (±25ppm/°C versus ±50ppm/°C), representing an upgrade path for applications requiring tighter tolerance control.

Parameter Comparison

Engineering Selection Recommendations

Both the RN55C2552FRE6 and RN55E2552BRE6 are active production components from Vishay Dale with identical military qualification and compliance status. Selection between these parts depends on application tolerance requirements:

• RN55C2552FRE6: Select for applications where ±1% tolerance meets circuit specifications and cost optimization is prioritized. Current inventory of 946 units supports immediate availability.

• RN55E2552BRE6: Select for precision applications requiring ±0.1% tolerance and lower temperature coefficient performance. Enhanced inventory of 1994 units provides superior supply security.

Both parts maintain identical RoHS non-compliant and REACH Affected status, requiring equivalent compliance documentation for procurement and deployment. Axial package configuration and through-hole mounting remain consistent across both options, eliminating PCB layout modifications.

Frequently Asked Questions (FAQ)

Q: Can RN55E2552BRE6 directly replace RN55C2552FRE6 in existing designs?

A: Yes. Both parts share identical resistance value (25.5 kOhms), power rating (0.125W), package configuration (Axial), physical dimensions (0.090" Dia x 0.240" L), and operating temperature range (-65°C to 175°C). The RN55E2552BRE6 offers improved tolerance (±0.1% versus ±1%) and lower temperature coefficient, making it a direct upgrade with no circuit board modifications required.

Q: What is the tolerance difference between these parts?

A: The RN55C2552FRE6 provides ±1% tolerance, while the RN55E2552BRE6 provides ±0.1% tolerance. The RN55E2552BRE6 also features a lower temperature coefficient of ±25ppm/°C compared to ±50ppm/°C for the RN55C2552FRE6. These differences result in superior stability and accuracy for the substitute part.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical military series designation (MIL-R-10509/7, RN55), RoHS non-compliant status, and REACH Affected classification. Compliance documentation requirements remain unchanged when substituting between these parts.

Q: What is the physical package compatibility?

A: Both parts use identical Axial through-hole package configuration with matching dimensions of 0.090" diameter by 0.240" length (2.29mm x 6.10mm). No PCB layout or mounting modifications are necessary for substitution.

Q: Which part should be selected for new designs?

A: For new designs, the RN55E2552BRE6 is the preferred selection due to superior tolerance specification (±0.1%), lower temperature coefficient (±25ppm/°C), and higher inventory availability (1994 units). The RN55C2552FRE6 remains suitable for applications where ±1% tolerance is acceptable and cost optimization is the primary objective.