RN55C3920FRE6 Equivalent & Substitute Parts

Part Overview

The RN55C3920FRE6 is a 392 Ohms ±1% 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 and moisture-resistant construction suitable for military and high-reliability applications. The part is currently active in production with 1097 units in stock. Substitute parts may be required due to packaging format availability, tolerance requirements, or inventory constraints.

Substiute Parts

RN55C3920FRE6

Vishay DaleIn Stock: 1119RN55C3920FRE6 Datasheet

Current PartRFQ

RN55C3920BRE6

Vishay DaleIn Stock: 1688RN55C3920BRE6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The RN55C3920BRE6 qualifies as a direct substitute based on the following critical parameters:

• Resistance Value: Both parts are 392 Ohms
• Power Rating: Both rated at 0.125W (1/8W)
• Composition: Both are metal film construction
• Temperature Coefficient: Both ±50ppm/°C
• Operating Temperature Range: Both -65°C to 175°C
• Package Type: Both axial configuration
• Physical Dimensions: Identical at 0.090" Dia × 0.240" L
• Series Compliance: Both comply with MIL-R-10509/7 military specification
• Features: Both include flame retardant coating, military grade, moisture resistant, and safety features

The primary difference is packaging format (Tape & Reel versus Cut Tape) and tolerance specification (±1% versus ±0.1%), with the substitute offering improved tolerance performance.

Parameter Comparison

Engineering Selection Recommendations

Both RN55C3920FRE6 and RN55C3920BRE6 are active production components from Vishay Dale with identical military-grade specifications and compliance status. Selection between these parts should be based on:

Packaging Requirements: The RN55C3920FRE6 is supplied in Tape & Reel format suitable for automated assembly processes, while the RN55C3920BRE6 is supplied in Cut Tape format for manual or semi-automated placement.

Tolerance Specification: The RN55C3920BRE6 provides ±0.1% tolerance compared to ±1% for the RN55C3920FRE6. Applications requiring tighter resistance tolerance should specify the RN55C3920BRE6.

Compliance Considerations: Both parts maintain identical RoHS non-compliant and REACH Affected status. No compliance advantage exists between the two options.

Inventory Availability: The RN55C3920BRE6 currently has 1652 units in stock compared to 1097 units for the RN55C3920FRE6.

Frequently Asked Questions (FAQ)

Q: Can RN55C3920BRE6 directly replace RN55C3920FRE6 in existing designs?

A: Yes. Both parts are electrically and mechanically identical with the same resistance value, power rating, temperature range, and physical dimensions. The substitute offers improved tolerance performance at ±0.1% versus ±1%.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on continuous carrier tape wound on reels, optimized for high-volume automated assembly. Cut Tape supplies the same carrier tape in smaller pre-cut lengths for manual or lower-volume assembly operations. Electrical and mechanical specifications are identical.

Q: Are both parts suitable for military applications?

A: Yes. Both RN55C3920FRE6 and RN55C3920BRE6 comply with MIL-R-10509/7 military specification and include flame retardant coating, moisture-resistant construction, and safety features required for military-grade applications.

Q: Does tolerance difference affect circuit performance?

A: The ±0.1% tolerance of RN55C3920BRE6 provides tighter resistance control compared to ±1% of RN55C3920FRE6. Applications with strict resistance accuracy requirements should specify the ±0.1% part.

Q: Are there RoHS-compliant alternatives available?

A: Both parts listed are RoHS non-compliant. No RoHS-compliant alternatives are provided in this substitution group.