RLR20C1001FMB14 Equivalent & Substitute Parts

Part Overview

The RLR20C1001FMB14 is a 1 kOhms ±1% 0.5W through-hole resistor manufactured by Vishay Dale, designed for military applications per MIL-PRF-39017/02 specification. This metal film axial resistor features moisture resistance and weldability, making it suitable for demanding environments requiring high reliability. The part is currently active in production with 790 units in stock. Substitute parts are identified when inventory constraints, lead time requirements, or specific failure rate specifications necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

RLR20C1001FMB14

Vishay DaleIn Stock: 815RLR20C1001FMB14 Datasheet

Current PartRFQ

RLR20C1001FRB14

Vishay DaleIn Stock: 1206RLR20C1001FRB14 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RLR20C1001FMB14 is determined by strict equivalence across the following parameters:

• Resistance value: 1 kOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Metal Film
• Package: Axial
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -65°C to 150°C
• Physical dimensions: 0.138" Dia x 0.375" L (4.61mm x 9.53mm)
• Military series compliance: MIL-PRF-39017/02, RLR20 base product

The RLR20C1001FRB14 meets all electrical and mechanical requirements for direct substitution. The primary difference is the failure rate specification, which does not affect functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both RLR20C1001FMB14 and RLR20C1001FRB14 are active production parts from Vishay Dale with identical electrical specifications and military qualification. Selection between these parts should be based on:

• Inventory availability: RLR20C1001FRB14 has 1129 units in stock versus 790 units for RLR20C1001FMB14
• Failure rate requirements: RLR20C1001FRB14 offers a lower failure rate (0.01% versus 1%), suitable for high-reliability applications
• Compliance requirements: Both parts maintain equivalent RoHS non-compliance status, REACH affection, and EAR99 export classification

No functional performance difference exists between these parts in standard circuit applications. Selection is driven by supply chain and reliability specifications rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can RLR20C1001FRB14 be used as a direct replacement for RLR20C1001FMB14?

A: Yes. Both parts are electrically and mechanically identical across all functional parameters: 1 kOhms resistance, ±1% tolerance, 0.5W power rating, metal film composition, axial package, and identical physical dimensions. The failure rate difference does not affect circuit functionality.

Q: What is the significance of the failure rate difference between M (1%) and R (0.01%)?

A: Failure rate classification indicates expected reliability performance under specified conditions. The R-grade (0.01%) represents higher reliability screening and is appropriate for mission-critical applications. The M-grade (1%) is suitable for standard military applications. Both meet MIL-PRF-39017/02 requirements.

Q: Are the physical dimensions identical for both parts?

A: Yes. Both parts measure 0.138" diameter by 0.375" length (4.61mm x 9.53mm), ensuring identical PCB footprint and mounting compatibility.

Q: Do both parts comply with the same military specifications?

A: Yes. Both RLR20C1001FMB14 and RLR20C1001FRB14 are qualified to MIL-PRF-39017/02 and belong to the RLR20 military resistor series with identical feature sets: moisture resistance and weldability.

Q: What are the compliance and export considerations?

A: Both parts share identical compliance status: RoHS non-compliant, REACH affected, EAR99 export classification, and HTSUS code 8533.21.0090. No additional compliance differences exist between the two parts.