AC1206FR-07634KL Equivalent & Substitute Parts

Part Overview

The AC1206FR-07634KL is a 634 kOhms ±1% 0.25W thick film chip resistor in 1206 (3216 Metric) package manufactured by YAGEO. This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently in active production status with 1022 units in stock.

Substitute parts are necessary when the primary component becomes unavailable, when supply chain optimization is required, or when design flexibility across qualified manufacturers is needed while maintaining identical electrical and mechanical specifications.

Substiute Parts

AC1206FR-07634KL

YAGEOIn Stock: 1053AC1206FR-07634KL Datasheet

Current PartRFQ

RC1206FR-07634KL

YAGEOIn Stock: 3768RC1206FR-07634KL Datasheet

MFR RecommendedRFQ

ERJ-8ENF6343V

Panasonic Electronic ComponentsIn Stock: 40597ERJ-8ENF6343V Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AC1206FR-07634KL is determined by strict equivalence across the following parameters:

• Resistance value: 634 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.25W (exact match required)
• Package type: 1206 (3216 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)
• Moisture sensitivity: MSL 1 or better (equivalent or superior)
• RoHS compliance: ROHS3 or equivalent (exact match required)

All qualified substitutes must meet these criteria without exception. Dimensional variations within supplier tolerances are acceptable provided they do not exceed the specified maximum seated height and do not impact PCB assembly compatibility.

Parameter Comparison

Engineering Selection Recommendations

RC1206FR-07634KL (YAGEO): This substitute is recommended as the primary alternative. Both the main part and this substitute are manufactured by YAGEO, share identical electrical specifications, and are in active production status. The RC series offers equivalent moisture resistance and ROHS3 compliance. This part provides the highest supply continuity and design stability.

ERJ-8ENF6343V (Panasonic): This substitute meets all electrical and mechanical requirements and carries AEC-Q200 automotive qualification identical to the main part. However, this part is designated "Not For New Designs" and should be used only when existing inventory is available or when design continuity with legacy systems is required. The dimensional variation (0.028" maximum height versus 0.026" for the main part) is within acceptable PCB assembly tolerances but must be verified for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can RC1206FR-07634KL be used as a direct replacement for AC1206FR-07634KL?

A: Yes. Both parts are manufactured by YAGEO, share identical resistance (634 kOhms), tolerance (±1%), power rating (0.25W), package (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating range (-55°C to 155°C), and RoHS compliance. Both are in active production.

Q: Is ERJ-8ENF6343V suitable for new automotive designs?

A: ERJ-8ENF6343V meets all electrical specifications and carries AEC-Q200 qualification. However, it is designated "Not For New Designs" by the manufacturer. Use this part only for legacy system maintenance or when existing inventory must be consumed. For new automotive designs, select AC1206FR-07634KL or RC1206FR-07634KL.

Q: What is the significance of the dimensional differences in ERJ-8ENF6343V?

A: The Panasonic part measures 0.126" L × 0.063" W × 0.028" H (max), compared to 0.122" L × 0.063" W × 0.026" H (max) for YAGEO parts. These variations fall within standard PCB assembly tolerances for 1206 packages. Verify clearance in space-constrained layouts before selection.

Q: Are all three parts ROHS3 compliant?

A: Yes. AC1206FR-07634KL, RC1206FR-07634KL, and ERJ-8ENF6343V are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What determines substitution eligibility for this resistor?

A: Substitution is based on exact equivalence of resistance value (634 kOhms), tolerance (±1%), power rating (0.25W), package type (1206), composition (thick film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and regulatory compliance (ROHS3). All qualified substitutes must match these parameters without deviation.