FPA2K 1R K Equivalent & Substitute Parts

Part Overview

The FPA2K 1R K is a 2000W thick film chassis mount resistor manufactured by Ohmite, rated at 1 Ohm with ±10% tolerance. This component is designed for high-power applications requiring robust thermal dissipation and mechanical stability through flanged mounting. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when application requirements permit operation at reduced power ratings or alternative tolerance specifications while maintaining identical resistance values, physical dimensions, and core electrical characteristics.

Substiute Parts

FPA2K 1R K

OhmiteIn Stock: 856FPA2K 1R K Datasheet

Current PartRFQ

TAP600K1R0E

OhmiteIn Stock: 1764TAP600K1R0E Datasheet

Parametric EquivalentRFQ

TAP800K1R0E

OhmiteIn Stock: 1191TAP800K1R0E Datasheet

Parametric EquivalentRFQ

TAP600J1R0E

OhmiteIn Stock: 1125TAP600J1R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPA2K 1R K are selected based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 1 Ohm (exact match required)
• Composition: Thick Film
• Temperature Coefficient: ±150ppm/°C
• Operating Temperature Range: -55°C to 150°C
• Mounting Feature: Flanges with M5 Threaded Lead
• Physical Dimensions: 65.00mm L × 60.00mm W × 32.50mm H (Max)
• Compliance Status: RoHS3 Compliant, REACH Unaffected

Variable Parameters Permitting Substitution:

• Power Rating: Reduced from 2000W to 600W or 800W (application-dependent)
• Tolerance: ±10% or ±5% (tighter tolerance acceptable)
• Coating: Uncoated or Epoxy Coated (both acceptable)

Substitutes are valid when the application power dissipation requirement does not exceed the substitute part's power rating and when tolerance specifications are met or exceeded.

Parameter Comparison

Engineering Selection Recommendations

FPA2K 1R K Selection Criteria: Select the FPA2K 1R K when applications require continuous power dissipation up to 2000W at 1 Ohm resistance with ±10% tolerance. This part is the primary choice for maximum thermal capacity within the specified physical envelope.

TAP800K1R0E Selection Criteria: The TAP800K1R0E provides an intermediate power rating of 800W while maintaining all core electrical and mechanical specifications. This substitute is applicable when application power dissipation ranges from 600W to 800W, offering a balance between thermal capacity and component availability.

TAP600K1R0E Selection Criteria: The TAP600K1R0E is rated at 600W with ±10% tolerance, matching the original tolerance specification. This substitute is applicable for applications with power dissipation up to 600W. All compliance certifications (RoHS3, REACH Unaffected, EAR99) are maintained.

TAP600J1R0E Selection Criteria: The TAP600J1R0E provides a 600W power rating with tighter ±5% tolerance specification. This substitute is applicable for applications requiring enhanced tolerance accuracy at power levels up to 600W. All compliance certifications are maintained. Moisture Sensitivity Level is rated MSL 1 (Unlimited).

All substitute parts maintain Active product status and are manufactured by Ohmite with identical physical dimensions and mounting interfaces.

Frequently Asked Questions (FAQ)

Q: Can TAP600K1R0E be used as a direct replacement for FPA2K 1R K?

A: TAP600K1R0E is a direct mechanical and electrical substitute only when application power dissipation does not exceed 600W. The part shares identical resistance (1 Ohm), tolerance (±10%), temperature coefficient (±150ppm/°C), operating temperature range (-55°C to 150°C), physical dimensions (65.00mm × 60.00mm × 32.50mm), and mounting interface (M5 threaded flanges). Power rating reduction from 2000W to 600W is the only functional difference.

Q: What is the difference between TAP600K1R0E and TAP600J1R0E?

A: Both parts are rated at 600W with identical physical dimensions and mounting specifications. The primary difference is tolerance: TAP600K1R0E has ±10% tolerance, while TAP600J1R0E has ±5% tolerance. TAP600J1R0E provides tighter tolerance accuracy for applications requiring enhanced precision. Both maintain RoHS3 compliance and REACH Unaffected status.

Q: Is TAP800K1R0E suitable for applications originally designed for FPA2K 1R K?

A: TAP800K1R0E is suitable when application power dissipation is between 600W and 800W. The part maintains all electrical specifications (1 Ohm resistance, ±10% tolerance, ±150ppm/°C temperature coefficient, -55°C to 150°C operating range) and physical dimensions. The 800W power rating provides intermediate capacity between 600W and 2000W options.

Q: Do all substitute parts maintain the same compliance certifications?

A: All substitute parts (TAP600K1R0E, TAP800K1R0E, TAP600J1R0E) are RoHS3 Compliant, REACH Unaffected, and classified as EAR99. Compliance status is maintained across all substitutes.

Q: Are the physical dimensions identical across all parts?

A: Yes. The FPA2K 1R K and all substitute parts share identical physical dimensions of 65.00mm length × 60.00mm width × 32.50mm maximum seated height. All parts feature M5 threaded lead style with flanged mounting, ensuring mechanical interchangeability.

Q: What determines whether a substitute part is acceptable for my application?

A: The primary determining factor is application power dissipation. If power dissipation does not exceed the substitute part's power rating (600W for TAP600 series, 800W for TAP800K1R0E), the substitute is acceptable. All other electrical parameters (resistance, temperature coefficient, operating temperature range) and mechanical specifications (dimensions, mounting interface) are identical across all parts.