RN65D4991FRE6 Equivalent & Substitute Parts

Part Overview

The RN65D4991FRE6 is a 4.99 kOhms ±1% metal film through-hole resistor rated at 0.5W (1/2W) in axial package configuration. This component is manufactured by Vishay Dale under the military-grade RN65 series (MIL-R-10509/2) and features flame retardant coating with moisture resistance suitable for military and safety-critical applications. The part maintains active product status with 1026 units currently in stock. Substitute parts are identified to address packaging format availability and inventory requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

RN65D4991FRE6

Vishay DaleIn Stock: 1036RN65D4991FRE6 Datasheet

Current PartRFQ

RN65D4991FB14

Vishay DaleIn Stock: 1090RN65D4991FB14 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN65D4991FRE6 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4.99 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -65°C to 175°C (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Physical dimensions: 0.180" Dia × 0.562" L (exact match required)
• Series compliance: MIL-R-10509/2, RN65 (exact match required)
• Feature set: Flame retardant coating, military grade, moisture resistant (exact match required)

The identified substitute differs only in packaging format (Bulk versus Tape & Reel), which does not affect electrical performance or mechanical compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both RN65D4991FRE6 and RN65D4991FB14 are active products from Vishay Dale with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and supply chain considerations:

RN65D4991FRE6 (Tape & Reel): Suitable for automated assembly processes and high-volume production environments where tape-and-reel packaging provides handling efficiency and component counting accuracy.

RN65D4991FB14 (Bulk): Suitable for manual assembly, prototyping, repair operations, and applications where individual component handling is required.

Both parts maintain identical compliance status: RoHS non-compliant and REACH Affected. Both are certified to MIL-R-10509/2 military specifications with active product status. The choice between these substitutes does not affect circuit performance, reliability, or regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can RN65D4991FB14 be used as a direct replacement for RN65D4991FRE6 in production assemblies?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Bulk versus Tape & Reel). If your assembly process accommodates bulk packaging, RN65D4991FB14 provides full functional equivalence.

Q: Does the packaging format affect component performance or reliability?

A: No. Packaging format (Tape & Reel or Bulk) does not affect electrical performance, temperature stability, tolerance accuracy, or long-term reliability. Both formats contain the same component with identical specifications.

Q: Are both parts compliant with the same military and safety standards?

A: Yes. Both RN65D4991FRE6 and RN65D4991FB14 are manufactured to MIL-R-10509/2 specifications and feature identical military-grade construction with flame retardant coating and moisture resistance.

Q: What is the difference in handling between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging is optimized for automated pick-and-place equipment and provides organized component storage. Bulk packaging requires manual handling and is typically used for lower-volume assembly, repair, or prototyping applications.

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

A: No. Both parts share identical RoHS non-compliant and REACH Affected status. Regulatory compliance is not affected by packaging format.

Q: Can I mix RN65D4991FRE6 and RN65D4991FB14 in the same assembly?

A: Yes. Since both parts are electrically and mechanically identical, they can be used interchangeably within the same circuit or assembly without affecting performance or reliability.