RLR05C5111FSM23 Equivalent & Substitute Parts

Part Overview

The RLR05C5111FSM23 is a 5.11 kOhms ±1% metal film through-hole resistor rated at 0.125W (1/8W) in axial package configuration. Manufactured by Vishay Dale under the military-grade MIL-PRF-39017/05 specification, this component features moisture-resistant construction with weldable terminations suitable for military and aerospace applications. The part maintains active product status with 1050 units currently in stock. Substitute parts may be required due to inventory constraints, procurement lead times, or specific packaging requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

RLR05C5111FSM23
Vishay DaleIn Stock: 1109RLR05C5111FSM23 Datasheet
RLR05C5111FSM23
Current Part
RLR05C5111FSB14
Vishay DaleIn Stock: 2218RLR05C5111FSB14 Datasheet
RLR05C5111FSB14
Parametric Equivalent

Key Parameters

Parameter Specification
Resistance Value 5.11 kOhms
Tolerance ±1%
Power Rating 0.125W (1/8W)
Composition Metal Film
Temperature Coefficient ±100ppm/°C
Operating Temperature Range -65°C to 150°C
Package Type Axial
Physical Dimensions 0.066" Dia × 0.150" L (1.68mm × 3.81mm)
Terminations 2
Military Specification MIL-PRF-39017/05
Features Military, Moisture Resistant, Weldable
Failure Rate S (0.001%)

Substitute Part Grouping Explanation

Substitution eligibility for the RLR05C5111FSM23 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part RLR05C5111FSB14 qualifies as a direct parametric equivalent based on identical specifications in the following categories:

Electrical Parameters: Resistance value (5.11 kOhms), tolerance (±1%), power rating (0.125W), composition (metal film), and temperature coefficient (±100ppm/°C) must match exactly.

Mechanical Parameters: Package type (axial), physical dimensions (0.066" Dia × 0.150" L), and termination count (2) must be identical.

Environmental & Compliance: Operating temperature range (-65°C to 150°C), military specification compliance (MIL-PRF-39017/05), and feature set (moisture resistant, weldable) must be maintained.

Reliability: Failure rate classification (S, 0.001%) must be equivalent.

Parameter Comparison

Parameter RLR05C5111FSM23 RLR05C5111FSB14 Match
Manufacturer Vishay Dale Vishay Dale
Resistance 5.11 kOhms 5.11 kOhms
Tolerance ±1% ±1%
Power Rating 0.125W (1/8W) 0.125W (1/8W)
Composition Metal Film Metal Film
Temperature Coefficient ±100ppm/°C ±100ppm/°C
Operating Temperature -65°C to 150°C -65°C to 150°C
Package Type Axial Axial
Dimensions 0.066" Dia × 0.150" L (1.68mm × 3.81mm) 0.066" Dia × 0.150" L (1.68mm × 3.81mm)
Terminations 2 2
Military Specification MIL-PRF-39017/05 MIL-PRF-39017/05
Features Military, Moisture Resistant, Weldable Military, Moisture Resistant, Weldable
Failure Rate S (0.001%) S (0.001%)
Product Status Active Active

Engineering Selection Recommendations

Both RLR05C5111FSM23 and RLR05C5111FSB14 maintain active product status with full military specification compliance under MIL-PRF-39017/05. Selection between these parts should be based on inventory availability and procurement timelines. The RLR05C5111FSB14 currently maintains higher stock levels (2174 units) compared to the RLR05C5111FSM23 (1050 units), making it suitable for applications requiring expedited procurement. Both parts carry identical REACH and ECCN classifications (REACH Affected, EAR99), ensuring equivalent regulatory compliance for export and supply chain applications. No electrical or mechanical performance differentiation exists between these components.

Frequently Asked Questions (FAQ)

Q: Can RLR05C5111FSB14 be used as a direct replacement for RLR05C5111FSM23?

A: Yes. Both parts are parametric equivalents with identical resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and military specification compliance. Direct substitution is permissible without circuit redesign or performance impact.

Q: Are there differences in reliability or failure rates between these parts?

A: No. Both parts carry identical failure rate classification (S, 0.001%) under military specification MIL-PRF-39017/05, indicating equivalent reliability performance.

Q: Do these parts have different moisture sensitivity or environmental ratings?

A: No. Both parts feature identical moisture-resistant construction with weldable terminations and identical operating temperature ranges (-65°C to 150°C). Moisture Sensitivity Level is not applicable to both components.

Q: Can these axial resistors be used in PCB-mounted applications?

A: These components are through-hole axial resistors designed for lead-based assembly. Compatibility with specific PCB layouts depends on hole spacing and lead diameter accommodation, which are identical across both part numbers.

Q: What is the difference between the FSM23 and FSB14 suffixes?

A: The suffix designations indicate different manufacturing batches or tape/reel configurations within the same base product line (RLR05). Electrical and mechanical specifications remain identical.

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