RN55C3000FRE6 Equivalent & Substitute Parts

Part Overview

The RN55C3000FRE6 is a 300 Ohm, 1/8W through-hole axial resistor manufactured by Vishay Dale, designed for military applications per MIL-R-10509/7 specifications. This metal film resistor features flame retardant coating, moisture resistance, and safety-rated construction suitable for high-reliability electronic assemblies. The part is currently active in production with 743 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained while potentially offering improved specifications or alternative packaging configurations.

Substiute Parts

RN55C3000FRE6

Vishay DaleIn Stock: 839RN55C3000FRE6 Datasheet

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RN55E3000BB14

Vishay DaleIn Stock: 1426RN55E3000BB14 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RN55E3000BB14 qualifies as a substitute for the RN55C3000FRE6 based on the following substitution criteria:

Matching Parameters (Required for Substitution):

• Resistance value: 300 Ohms (identical)
• Power rating: 0.125W, 1/8W (identical)
• Composition: Metal Film (identical)
• Package type: Axial (identical)
• Operating temperature range: -65°C to 175°C (identical)
• Physical dimensions: 0.090" Dia x 0.240" L (identical)
• Series classification: Military, MIL-R-10509/7, RN55 (identical)
• Core features: Flame Retardant Coating, Military, Moisture Resistant, Safety (identical)

Enhanced Specifications in Substitute:

• Tolerance: ±0.1% (improved from ±1%)
• Temperature coefficient: ±25ppm/°C (improved from ±50ppm/°C)

Packaging Difference:

• Main part: Tape & Reel (TR)
• Substitute: Bulk

Parameter Comparison

Engineering Selection Recommendations

The RN55E3000BB14 is electrically and mechanically compatible with the RN55C3000FRE6 for direct substitution in circuit applications. Both parts maintain identical resistance values, power ratings, operating temperature ranges, and physical dimensions required for PCB mounting and thermal performance.

The substitute part offers improved tolerance (±0.1% versus ±1%) and superior temperature coefficient stability (±25ppm/°C versus ±50ppm/°C), making it suitable for applications requiring tighter component specifications. Both parts share identical military qualification, flame retardant coating, moisture resistance, and safety features.

The primary consideration is packaging format: the main part is supplied in Tape & Reel format while the substitute is supplied in Bulk. This difference affects procurement and assembly processes but does not impact electrical or mechanical performance.

Both parts maintain identical compliance status with RoHS non-compliance and REACH Affected designations. Product status is Active for both variants, ensuring continued availability and support.

Frequently Asked Questions (FAQ)

Q: Can RN55E3000BB14 be used as a direct replacement for RN55C3000FRE6?

A: Yes. Both parts share identical resistance (300 Ohms), power rating (0.125W), composition (Metal Film), package type (Axial), operating temperature range (-65°C to 175°C), and physical dimensions (0.090" Dia x 0.240" L). The substitute offers improved tolerance and temperature coefficient specifications.

Q: What is the difference in tolerance between these parts?

A: The RN55C3000FRE6 has ±1% tolerance, while the RN55E3000BB14 has ±0.1% tolerance. The substitute provides tighter tolerance control, beneficial for precision circuit applications.

Q: How do the temperature coefficients compare?

A: The RN55C3000FRE6 has a temperature coefficient of ±50ppm/°C, while the RN55E3000BB14 has ±25ppm/°C. The substitute exhibits superior stability across the operating temperature range.

Q: Does packaging format affect circuit performance?

A: No. Tape & Reel (TR) and Bulk packaging formats do not affect electrical or mechanical performance. The difference is in procurement and assembly logistics only.

Q: Are both parts military-qualified?

A: Yes. Both parts comply with MIL-R-10509/7 specifications and are classified as military-grade resistors with flame retardant coating, moisture resistance, and safety features.

Q: What is the inventory status for each part?

A: RN55C3000FRE6 has 743 units in stock. RN55E3000BB14 has 1383 units in stock. Both are listed as Active products.

Q: Do these parts have identical compliance certifications?

A: Yes. Both parts share identical RoHS non-compliance status and REACH Affected designation. Compliance requirements do not differentiate between these substitutes.