RN55C4811FRE6 Equivalent & Substitute Parts

Part Overview

The RN55C4811FRE6 is a 4.81 kOhms ±1% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. This component is part of the Military MIL-R-10509/7 RN55 series and features flame retardant coating with moisture-resistant properties suitable for military applications. The part maintains active product status with 752 units currently in stock. Substitute parts are identified to address packaging format availability and tolerance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

RN55C4811FRE6

Vishay DaleIn Stock: 779RN55C4811FRE6 Datasheet

Current PartRFQ

RN55C4811BRE6

Vishay DaleIn Stock: 2085RN55C4811BRE6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN55C4811FRE6 is determined by the following critical parameters:

• Resistance value: 4.81 kOhms (exact match required)
• Power rating: 0.125W (1/8W) (exact match required)
• Package type: Axial (exact match required)
• Physical dimensions: 0.090" Dia x 0.240" L (exact match required)
• Composition: Metal Film (exact match required)
• Operating temperature range: -65°C to 175°C (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Series compliance: Military, MIL-R-10509/7, RN55 (exact match required)

The RN55C4811BRE6 qualifies as a substitute part because it maintains all critical electrical and mechanical parameters while offering improved tolerance specification (±0.1% versus ±1%) and alternative packaging format (Cut Tape versus Tape & Reel).

Parameter Comparison

Engineering Selection Recommendations

Both the RN55C4811FRE6 and RN55C4811BRE6 maintain active product status and identical compliance certifications (RoHS non-compliant, REACH Affected, ECCN EAR99). Selection between these parts should be based on packaging format requirements and tolerance specifications. The RN55C4811BRE6 provides tighter tolerance control (±0.1%) in Cut Tape packaging, while the RN55C4811FRE6 is available in Tape & Reel format with standard ±1% tolerance. Both components satisfy military-grade specifications and environmental operating requirements.

Frequently Asked Questions (FAQ)

Q: Can RN55C4811BRE6 be used as a direct replacement for RN55C4811FRE6?

A: Yes. Both parts share identical resistance value, power rating, physical dimensions, temperature coefficient, and operating temperature range. The primary differences are packaging format (Cut Tape versus Tape & Reel) and tolerance specification (±0.1% versus ±1%).

Q: What is the significance of the tolerance difference between these parts?

A: The RN55C4811BRE6 offers ±0.1% tolerance compared to ±1% for the RN55C4811FRE6. This tighter tolerance provides improved accuracy for applications requiring precise resistance values. Both tolerances fall within the same military specification series.

Q: Are there packaging compatibility considerations?

A: Yes. The RN55C4811FRE6 is supplied in Tape & Reel (TR) format, while the RN55C4811BRE6 is supplied in Cut Tape (CT) format. Verify that your assembly equipment and procurement processes support the required packaging format.

Q: Do both parts meet the same military and environmental standards?

A: Yes. Both components are part of the Military MIL-R-10509/7 RN55 series and feature identical flame retardant coating, moisture resistance, and safety characteristics. Operating temperature range and temperature coefficient specifications are identical.

Q: What inventory considerations apply to these parts?

A: The RN55C4811FRE6 has 752 units in stock, while the RN55C4811BRE6 has 2048 units available. Inventory levels may influence procurement decisions based on project timelines and volume requirements.