AC0805FR-07124KL Equivalent & Substitute Parts

Part Overview

The AC0805FR-07124KL is a 124 kOhms ±1% thick film chip resistor in 0805 (2012 Metric) package rated for 0.125W (1/8W) power dissipation. This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently active in production with 848 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance ratings are maintained across different manufacturers.

Substiute Parts

AC0805FR-07124KL

YAGEOIn Stock: 883AC0805FR-07124KL Datasheet

Current PartRFQ

RC0805FR-07124KL

YAGEOIn Stock: 106430RC0805FR-07124KL Datasheet

MFR RecommendedRFQ

CRCW0805124KFKEA

Vishay DaleIn Stock: 8928CRCW0805124KFKEA Datasheet

MFR RecommendedRFQ

ERJ-6ENF1243V

Panasonic Electronic ComponentsIn Stock: 77630ERJ-6ENF1243V Datasheet

MFR RecommendedRFQ

RMCF0805FT124K

Stackpole Electronics IncIn Stock: 34941RMCF0805FT124K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following parameters:

• Resistance value: 124 kOhms
• Tolerance: ±1%
• Power rating: 0.125W (1/8W)
• Package: 0805 (2012 Metric)
• Composition: Thick Film
• Temperature coefficient: ±100ppm/°C
• Operating temperature range: -55°C ~ 155°C
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity level: 1 (Unlimited)

All identified substitute parts maintain these core electrical and mechanical specifications. Automotive AEC-Q200 qualification is present in the main part and three of the four substitute options, providing additional assurance for applications requiring automotive-grade reliability.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain full electrical equivalence to the AC0805FR-07124KL across resistance, tolerance, power rating, and temperature specifications. The primary distinction among substitutes relates to automotive qualification status:

Three substitute options (CRCW0805124KFKEA, ERJ-6ENF1243V, RMCF0805FT124K) carry AEC-Q200 automotive qualification matching the main part. The RC0805FR-07124KL substitute does not include AEC-Q200 qualification and is suitable only for non-automotive applications.

Physical height variations exist among the substitutes (0.50mm to 0.70mm maximum seated height) compared to the main part (0.60mm). These dimensional differences remain within typical PCB assembly tolerances for 0805 packages and do not affect electrical performance or thermal characteristics.

All parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage conditions.

Frequently Asked Questions (FAQ)

Q: Can RC0805FR-07124KL be used as a direct replacement for AC0805FR-07124KL in automotive applications?

A: No. While RC0805FR-07124KL matches all electrical specifications, it lacks AEC-Q200 automotive qualification present in the main part. Use only in non-automotive circuits.

Q: Are the height differences among substitute parts significant for PCB assembly?

A: No. The height variations (0.50mm to 0.70mm) are within standard 0805 package tolerances and do not affect reflow soldering, component placement, or circuit performance.

Q: Do all substitute parts meet the same moisture and temperature specifications?

A: Yes. All substitutes maintain MSL 1 (Unlimited) moisture sensitivity and -55°C ~ 155°C operating temperature range identical to the main part.

Q: Which substitute offers the best inventory availability?

A: RC0805FR-07124KL from YAGEO offers the highest stock level at 106,358 units. For automotive applications, ERJ-6ENF1243V from Panasonic provides 77,575 units with AEC-Q200 qualification.

Q: Are there any compliance or certification differences among the substitutes?

A: All parts are ROHS3 compliant and REACH unaffected. Three substitutes (CRCW0805124KFKEA, ERJ-6ENF1243V, RMCF0805FT124K) include AEC-Q200 automotive qualification. RC0805FR-07124KL does not.