RS0101K000FS73 Equivalent & Substitute Parts

Part Overview

The RS0101K000FS73 is a 1 kOhms ±1% 10W through-hole axial wirewound resistor manufactured by Vishay Dale. This component is designed for applications requiring precision resistance with high power dissipation capability and moisture resistance. The part is currently active in production with 833 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same product category.

Substiute Parts

RS0101K000FS73

Vishay DaleIn Stock: 910RS0101K000FS73 Datasheet

Current PartRFQ

80F1K0

OhmiteIn Stock: 103080F1K0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RS0101K000FS73 are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

• Resistance value: 1 kOhms
• Tolerance: ±1%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial with 2 terminations
• Temperature coefficient: ±20ppm/°C

The Ohmite 80F1K0 meets all these core electrical specifications. Physical dimensions vary slightly between manufacturers, which is acceptable within industry standards for axial through-hole components. Both parts maintain the same functional performance envelope for circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RS0101K000FS73 and 80F1K0 are active production components with identical electrical specifications. Selection between these parts should be based on:

• Availability: The Ohmite 80F1K0 has 1020 units in stock compared to 833 units for the Vishay Dale part
• Physical space constraints: The Ohmite part has slightly larger dimensions (0.406" diameter vs 0.375", 1.843" length vs 1.780")
• Regulatory compliance: Both parts are RoHS non-compliant and carry EAR99 classification
• REACH status: The Vishay Dale RS0101K000FS73 is REACH Affected, while the Ohmite 80F1K0 is REACH Unaffected

For applications where REACH compliance is a requirement, the Ohmite 80F1K0 is the appropriate selection. For space-constrained designs, the Vishay Dale RS0101K000FS73 offers a more compact form factor.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite 80F1K0 be used as a direct replacement for the RS0101K000FS73?

A: Yes, the Ohmite 80F1K0 is electrically equivalent with matching resistance, tolerance, power rating, and temperature coefficient. Physical dimensions differ slightly but remain within acceptable tolerances for axial through-hole mounting in standard PCB layouts.

Q: What is the significance of the dimension differences between these parts?

A: The RS0101K000FS73 measures 0.375" diameter × 1.780" length, while the 80F1K0 measures 0.406" diameter × 1.843" length. These variations are typical among wirewound resistor manufacturers. Verify PCB layout clearances if space is limited.

Q: Are there compliance differences between these substitute parts?

A: Both parts are RoHS non-compliant and classified as EAR99. The key difference is REACH status: RS0101K000FS73 is REACH Affected, while 80F1K0 is REACH Unaffected. Select based on your regulatory requirements.

Q: What does the ±20ppm/°C temperature coefficient mean for substitution?

A: Both parts have identical temperature coefficients, ensuring equivalent performance across the -65°C to 250°C operating range. This parameter is critical for precision applications and confirms full interchangeability.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed. Mechanical interchangeability depends on PCB layout tolerances and available mounting space. Verify that the slightly larger Ohmite dimensions do not conflict with component placement or clearance requirements.