RLR05C1691FSRSL19 Equivalent & Substitute Parts

Part Overview

The RLR05C1691FSRSL19 is a 1.69 kOhm ±1% metal film axial resistor rated at 0.125W (1/8W) manufactured by Vishay Dale. This component is designed for military applications per MIL-PRF-39017/05 specification and features moisture-resistant, weldable construction suitable for high-reliability environments. The part is currently active in production with 861 units in stock. Substitute parts are identified when inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining identical electrical and mechanical performance.

Substiute Parts

RLR05C1691FSRSL19

Vishay DaleIn Stock: 896RLR05C1691FSRSL19 Datasheet

Current PartRFQ

RLR05C1691FSB14

Vishay DaleIn Stock: 1157RLR05C1691FSB14 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RLR05C1691FSRSL19 is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part RLR05C1691FSB14 qualifies as a direct parametric equivalent based on the following criteria:

• Identical resistance value: 1.69 kOhms
• Identical tolerance: ±1%
• Identical power rating: 0.125W (1/8W)
• Identical composition: Metal Film
• Identical temperature coefficient: ±100ppm/°C
• Identical operating temperature range: -65°C to 150°C
• Identical package type: Axial
• Identical physical dimensions: 0.066" Dia × 0.150" L (1.68mm × 3.81mm)
• Identical number of terminations: 2
• Identical series classification: Military, MIL-PRF-39017/05, RLR05
• Identical failure rate: S (0.001%)
• Identical features: Military, Moisture Resistant, Weldable

Parameter Comparison

Engineering Selection Recommendations

Both RLR05C1691FSRSL19 and RLR05C1691FSB14 are active production components manufactured by Vishay Dale with identical electrical specifications, mechanical dimensions, and military qualification. Selection between these parts may be based on inventory availability, procurement lead times, or supplier preference, as they are functionally interchangeable. Both parts maintain RoHS non-compliant and REACH Affected status, consistent with military-grade metal film resistor specifications. No technical performance differentiation exists between these components.

Frequently Asked Questions (FAQ)

Q: Can RLR05C1691FSB14 be used as a direct replacement for RLR05C1691FSRSL19?

A: Yes. Both parts are parametrically identical across all electrical and mechanical specifications, including resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package type, and physical dimensions. They are manufactured by the same supplier and share identical military qualification and failure rate ratings.

Q: Are there any differences in the axial package dimensions between these parts?

A: No. Both parts have identical physical dimensions of 0.066" diameter × 0.150" length (1.68mm × 3.81mm), ensuring identical PCB footprint and mounting compatibility.

Q: Do both parts meet the same military specifications?

A: Yes. Both RLR05C1691FSRSL19 and RLR05C1691FSB14 are classified under the Military series and comply with MIL-PRF-39017/05 specification with identical failure rate ratings of S (0.001%).

Q: What is the significance of the part number suffix difference (FSRSL19 vs. FSB14)?

A: The suffix variation indicates different packaging or distribution batches from Vishay Dale. The electrical and mechanical specifications remain identical, and the suffix does not affect functional performance or compatibility.

Q: Are moisture resistance and weldability characteristics identical?

A: Yes. Both parts feature identical moisture-resistant and weldable construction, maintaining performance in high-reliability military applications.

Q: What is the current inventory status for each part?

A: RLR05C1691FSRSL19 has 861 units in stock, while RLR05C1691FSB14 has 1105 units in stock. Both are active production components.