AHA50AJB-1R Equivalent & Substitute Parts

Part Overview

The AHA50AJB-1R is a 1 Ohm ±5% 50W wirewound chassis mount resistor manufactured by YAGEO in the AHA series. This component is designed for high-power applications requiring stable resistance values with aluminum housing and flanged mounting. The part maintains Active product status with full ROHS3 compliance and is suitable for applications operating across the -55°C to 250°C temperature range. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when tolerance specifications require adjustment.

Substiute Parts

AHA50AJB-1R

YAGEOIn Stock: 1043AHA50AJB-1R Datasheet

Current PartRFQ

AHA50AFB-1R

YAGEOIn Stock: 883AHA50AFB-1R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AHA50AFB-1R qualifies as a parametric equivalent based on the following critical parameters that determine substitution eligibility:

• Resistance value: 1 Ohms (identical)
• Power rating: 50W (identical)
• Composition: Wirewound (identical)
• Temperature coefficient: ±200ppm/°C (identical)
• Operating temperature range: -55°C ~ 250°C (identical)
• Housing type: Aluminum (identical)
• Mounting feature: Flanges (identical)
• Physical dimensions: 1.969" L x 1.142" W, 0.650" height (identical)
• Lead style: Solder Lugs (identical)
• RoHS compliance: ROHS3 Compliant (identical)

The primary difference is tolerance specification: AHA50AFB-1R provides ±1% tolerance compared to the ±5% tolerance of AHA50AJB-1R. This represents a tighter tolerance specification, making AHA50AFB-1R suitable for applications requiring higher precision.

Parameter Comparison

Engineering Selection Recommendations

Both AHA50AJB-1R and AHA50AFB-1R maintain Active product status with full ROHS3 compliance. Selection between these parts depends on tolerance requirements:

Use AHA50AJB-1R when ±5% tolerance meets circuit specifications and cost optimization is prioritized.

Use AHA50AFB-1R when applications require tighter tolerance control at ±1%, providing enhanced precision for critical circuit performance. The substitute part is fully compatible in all mechanical, thermal, and electrical parameters except tolerance specification.

Both parts are suitable for direct substitution in chassis mount applications with flanged mounting and solder lug termination across the full operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can AHA50AFB-1R replace AHA50AJB-1R in existing designs?

A: Yes. AHA50AFB-1R is mechanically and electrically compatible with identical dimensions, power rating, temperature range, and composition. The tighter ±1% tolerance of AHA50AFB-1R is a superior specification that functions in any application designed for AHA50AJB-1R.

Q: What is the primary difference between these two parts?

A: The tolerance specification differs. AHA50AJB-1R provides ±5% tolerance, while AHA50AFB-1R provides ±1% tolerance. All other electrical and mechanical parameters are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both AHA50AJB-1R and AHA50AFB-1R are ROHS3 compliant.

Q: Do these parts have identical physical dimensions?

A: Yes. Both parts share identical dimensions of 1.969" L x 1.142" W (50.00mm x 29.00mm) with a maximum seated height of 0.650" (16.50mm), ensuring direct mechanical compatibility in chassis mount applications.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -55°C to 250°C with a temperature coefficient of ±200ppm/°C.

Q: Can AHA50AJB-1R replace AHA50AFB-1R?

A: AHA50AJB-1R has a wider tolerance specification (±5% versus ±1%). It may be used only in applications where the circuit design tolerates ±5% resistance variation.