AT1206FRE077K5L Equivalent & Substitute Parts

Part Overview

The AT1206FRE077K5L is a 7.5 kOhms ±1% thin film chip resistor in 1206 (3216 Metric) package format, rated for 0.25W power dissipation. This component is manufactured by YAGEO and features anti-sulfur coating with automotive AEC-Q200 qualification and moisture resistance. The part maintains active product status with 884 units currently in stock. Substitute parts become necessary when primary inventory is depleted, when supply chain constraints occur, or when design flexibility permits equivalent component selection within the same electrical and mechanical specifications.

Substiute Parts

AT1206FRE077K5L

YAGEOIn Stock: 934AT1206FRE077K5L Datasheet

Current PartRFQ

RT1206FRE077K5L

YAGEOIn Stock: 9281RT1206FRE077K5L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT1206FRE077K5L is determined by strict equivalence across the following critical parameters:

Resistance value must be exactly 7.5 kOhms with ±1% tolerance. Power rating must be 0.25W minimum. Package format must be 1206 (3216 Metric) to ensure mechanical and electrical compatibility with PCB layouts. Composition must be thin film to maintain temperature coefficient performance of ±50ppm/°C. Operating temperature range must span -55°C to 155°C. RoHS3 compliance and MSL 1 rating are required for environmental and handling consistency. Termination count must be 2.

The RT1206FRE077K5L qualifies as a direct substitute because it matches all critical parameters: identical resistance, tolerance, power rating, package, composition, temperature coefficient, operating range, RoHS status, and MSL rating. The primary distinction is series designation (RT versus AT) and the absence of explicit anti-sulfur and AEC-Q200 features in the RT variant, though both are YAGEO thin film 1206 resistors with equivalent electrical performance.

Parameter Comparison

Engineering Selection Recommendations

Both the AT1206FRE077K5L and RT1206FRE077K5L are active products manufactured by YAGEO with full RoHS3 compliance and identical electrical specifications. Selection between these parts should be based on availability and application requirements. The AT series includes anti-sulfur coating and AEC-Q200 automotive qualification, making it suitable for automotive and harsh environment applications. The RT series provides equivalent electrical performance with higher current inventory availability (9269 units versus 884 units). Both parts satisfy the same PCB footprint requirements and thermal operating conditions. Component selection should prioritize application-specific certifications when automotive or corrosive environment exposure is a design factor.

Frequently Asked Questions (FAQ)

Q: Can RT1206FRE077K5L replace AT1206FRE077K5L in all applications?

A: Electrical and mechanical compatibility is complete. The RT variant lacks explicit anti-sulfur and AEC-Q200 certifications present in the AT variant. Applications requiring automotive qualification or sulfur-resistant properties should retain the AT series.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1206 (3216 Metric) package with identical length (0.122"), width (0.063"), and maximum seated height (0.026"). PCB footprints are interchangeable.

Q: Do both parts meet RoHS requirements?

A: Yes. Both AT1206FRE077K5L and RT1206FRE077K5L are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the temperature coefficient difference?

A: Both parts specify ±50ppm/°C temperature coefficient with identical operating range of -55°C to 155°C.

Q: Why would I choose one over the other if they are electrically equivalent?

A: Choose AT1206FRE077K5L for automotive applications, harsh environments, or designs requiring AEC-Q200 certification. Choose RT1206FRE077K5L when standard industrial specifications suffice and higher inventory availability is advantageous.