RLR20C1001FSBSL Equivalent & Substitute Parts

Part Overview

The RLR20C1001FSBSL is a 1 kOhms ±1% 0.5W through-hole axial resistor manufactured by Vishay Dale. This metal film resistor is designed for military applications and meets MIL-PRF-39017/02 specifications. The component features moisture resistance and weldability, making it suitable for demanding environments. The part is currently active in production with 701 pieces in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across alternative packaging or manufacturing variants within the same product series.

Substiute Parts

RLR20C1001FSBSL

Vishay DaleIn Stock: 780RLR20C1001FSBSL Datasheet

Current PartRFQ

RLR20C1001FSB14

Vishay DaleIn Stock: 1075RLR20C1001FSB14 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The RLR20C1001FSB14 is identified as a parametric equivalent to the RLR20C1001FSBSL. Substitution is valid based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 1 kOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -65°C to 150°C

Mechanical Parameters (Identical):

• Package type: Axial
• Physical dimensions: 0.138" Dia x 0.375" L (4.61mm x 9.53mm)
• Number of terminations: 2

Material & Composition (Identical):

• Metal film construction
• Military series classification (MIL-PRF-39017/02, RLR20)
• Moisture resistant and weldable features

Reliability (Identical):

• Failure rate: S (0.001%)

The difference between these parts is limited to packaging variant designation, with both parts maintaining identical functional and physical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the RLR20C1001FSBSL and RLR20C1001FSB14 are active production parts from Vishay Dale with identical electrical, mechanical, and reliability specifications. Selection between these parts should be based on availability and supply chain requirements. Both parts maintain the same military qualification (MIL-PRF-39017/02), failure rate classification, and compliance status. The RLR20C1001FSB14 currently has higher inventory availability (1063 pieces versus 701 pieces), which may influence procurement decisions for high-volume applications. Both parts carry identical RoHS non-compliance and REACH-affected designations, requiring equivalent handling and documentation in regulated environments.

Frequently Asked Questions (FAQ)

Q: Can RLR20C1001FSB14 be used as a direct replacement for RLR20C1001FSBSL?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values, tolerances, power ratings, temperature coefficients, operating ranges, physical dimensions, and axial package configurations. They are interchangeable in circuit applications.

Q: What is the difference between these two part numbers?

A: The difference is limited to packaging variant designation. All functional, electrical, and mechanical parameters are identical. Both parts are manufactured by Vishay Dale within the same RLR20 military series.

Q: Are there any compliance or certification differences?

A: No. Both parts share identical RoHS status (non-compliant), REACH status (affected), ECCN classification (EAR99), and HTSUS codes (8533.21.0090). They meet the same military specifications (MIL-PRF-39017/02) and carry the same failure rate classification.

Q: Which part should I select for new designs?

A: Either part is suitable for new designs. Selection should be based on current inventory availability and supply chain logistics. The RLR20C1001FSB14 currently has higher stock levels.

Q: Are these parts suitable for military applications?

A: Yes. Both parts are qualified for military use under MIL-PRF-39017/02 and feature moisture resistance and weldability. They maintain a failure rate of S (0.001%), meeting military reliability standards.

Q: What is the physical size of these resistors?

A: Both parts have identical dimensions of 0.138" diameter by 0.375" length (4.61mm x 9.53mm) in axial configuration, suitable for standard through-hole PCB mounting.