RN65D4990FRE6 Equivalent & Substitute Parts

Part Overview

The RN65D4990FRE6 is a 499 Ohms ±1% 0.5W through-hole axial resistor manufactured by Vishay Dale, part of the military-grade RN65 series compliant with MIL-R-10509/2. This metal film resistor features flame retardant coating, moisture resistance, and safety characteristics suitable for military and high-reliability applications. The part is currently active in production with 869 units in stock.

Substitute parts are identified to address packaging format availability, inventory requirements, or temperature coefficient specifications while maintaining electrical and mechanical compatibility within the RN65 series.

Substiute Parts

RN65D4990FRE6

Vishay DaleIn Stock: 909RN65D4990FRE6 Datasheet

Current PartRFQ

RN65D4990FB14

Vishay DaleIn Stock: 956RN65D4990FB14 Datasheet

DirectRFQ

RN65C4990FB14

Vishay DaleIn Stock: 1061RN65C4990FB14 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the RN65D4990FRE6 product family is determined by the following critical parameters that must remain constant:

• Resistance value: 499 Ohms
• Tolerance: ±1%
• Power rating: 0.5W
• Composition: Metal Film
• Package type: Axial
• Physical dimensions: 0.180" Dia x 0.562" L
• Operating temperature range: -65°C ~ 175°C
• Series compliance: RN65 (MIL-R-10509/2)

The identified substitutes RN65D4990FB14 and RN65C4990FB14 maintain all critical electrical and mechanical parameters. Differences exist only in packaging format (Tape & Reel versus Bulk) and temperature coefficient specification (±100ppm/°C versus ±50ppm/°C for the RN65C variant).

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain active product status and identical military-grade specifications within the RN65 series. Selection between RN65D4990FRE6 and its substitutes is based on packaging and temperature coefficient requirements:

RN65D4990FRE6 and RN65D4990FB14 are electrically and mechanically identical, differing only in packaging format (Tape & Reel versus Bulk). Both maintain ±100ppm/°C temperature coefficient.

RN65C4990FB14 offers improved temperature stability with ±50ppm/°C temperature coefficient while maintaining all other electrical and mechanical specifications. This variant is suitable for applications requiring tighter frequency stability or reduced drift over the operating temperature range.

All parts comply with MIL-R-10509/2 military specifications and maintain identical RoHS and REACH compliance status.

Frequently Asked Questions (FAQ)

Q: Can RN65D4990FB14 replace RN65D4990FRE6 directly?

A: Yes. Both parts are electrically and mechanically identical with 499 Ohms ±1% resistance, 0.5W power rating, and identical physical dimensions. The difference is packaging format: RN65D4990FRE6 is supplied in Tape & Reel format while RN65D4990FB14 is supplied in Bulk format. Circuit performance is identical.

Q: What is the difference between RN65D4990FB14 and RN65C4990FB14?

A: The primary difference is temperature coefficient: RN65D4990FB14 has ±100ppm/°C while RN65C4990FB14 has ±50ppm/°C. Both maintain identical resistance, tolerance, power rating, and physical dimensions. RN65C4990FB14 provides superior temperature stability for precision applications.

Q: Are all three parts suitable for military applications?

A: Yes. All three parts comply with MIL-R-10509/2 military specifications and are part of the RN65 military-grade series. They feature flame retardant coating, moisture resistance, and safety characteristics required for military use.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel and Bulk packaging formats contain identical components. Packaging differences affect only handling, storage, and assembly processes, not electrical or mechanical performance.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes, all three parts operate across the full -65°C ~ 175°C temperature range. For applications requiring minimal resistance drift over temperature, RN65C4990FB14 with ±50ppm/°C temperature coefficient is preferred over the ±100ppm/°C variants.