RN60C4990FRE6 Equivalent & Substitute Parts

Part Overview

The RN60C4990FRE6 is a 499 Ohms ±1% 0.25W through-hole resistor manufactured by Vishay Dale. This metal film axial resistor features flame retardant coating and is designed for military applications per MIL-R-10509/1 specification. The component is currently in active production status with 1710 pieces available in new original stock. Identifying equivalent and substitute parts is necessary to ensure supply chain continuity, manage inventory across multiple procurement channels, and maintain design flexibility in applications where component availability may be constrained.

Substiute Parts

RN60C4990FRE6

Vishay DaleIn Stock: 1753RN60C4990FRE6 Datasheet

Current PartRFQ

RN60C4990FRE6

Vishay DaleIn Stock: 1753RN60C4990FRE6 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN60C4990FRE6 must satisfy the following critical parameters to ensure functional and mechanical compatibility:

• Resistance value: 499 Ohms (exact match required)
• Tolerance: ±1% (electrical accuracy specification)
• Power rating: 0.25W minimum (thermal handling capability)
• Composition: Metal Film (performance characteristics and stability)
• Package type: Axial (mechanical fit and circuit board integration)
• Temperature coefficient: ±50ppm/°C or better (frequency stability and thermal drift)
• Operating temperature range: -65°C to 175°C minimum (environmental suitability)
• Features: Flame retardant coating, military grade, moisture resistant (safety and reliability standards)
• Series compliance: MIL-R-10509/1 military specification

Parts meeting all these parameters are classified as direct parametric equivalents and may be used interchangeably in applications requiring the RN60C4990FRE6.

Parameter Comparison

Engineering Selection Recommendations

The RN60C4990FRE6 is an active product with confirmed availability. When selecting substitute parts, prioritize components with identical parametric specifications and active production status. The military-grade classification and MIL-R-10509/1 compliance are critical for applications requiring defense or aerospace standards. RoHS non-compliance status should be evaluated against project requirements. REACH compliance status indicates regulatory considerations for European markets. All substitute selections must maintain the same axial package configuration to ensure mechanical compatibility with existing circuit board layouts and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I substitute the RN60C4990FRE6 with a different resistance value? A: No. The resistance value of 499 Ohms is a fundamental electrical parameter. Substitution requires an exact match to maintain circuit performance and design specifications.

Q: What does the ±1% tolerance specification mean for substitution? A: The ±1% tolerance defines the acceptable resistance variation from the nominal 499 Ohm value. Substitute parts must maintain this same tolerance level to ensure circuit accuracy and performance consistency.

Q: Is the axial package type interchangeable with surface-mount alternatives? A: No. The axial through-hole package is mechanically and electrically distinct from surface-mount packages. Substitutes must use the same axial configuration for circuit board compatibility.

Q: Why is the temperature coefficient specification important for substitution? A: The ±50ppm/°C temperature coefficient defines how the resistance value changes with temperature. Substitute parts must match this specification to maintain stable circuit performance across the operating temperature range of -65°C to 175°C.

Q: Does the military-grade classification affect substitute part selection? A: Yes. The MIL-R-10509/1 military specification and associated features (flame retardant coating, moisture resistance, safety rating) are critical for applications requiring military or aerospace standards. Substitute parts must maintain these certifications.

Q: What is the significance of the metal film composition? A: Metal film composition determines the resistor's performance characteristics, including stability, noise performance, and frequency response. Substitute parts must use metal film construction to maintain equivalent electrical behavior.

Q: Can I use a higher power-rated resistor as a substitute? A: While a higher power rating may be mechanically compatible, it could alter circuit board layout, thermal characteristics, and assembly processes. Substitutes should maintain the 0.25W power rating unless design modifications are explicitly approved.