AT1206DRE073K3L Equivalent & Substitute Parts

Part Overview

The AT1206DRE073K3L is a 3.3 kOhms ±0.5% thin film chip resistor in 1206 package format, manufactured by YAGEO. This component is designed for applications requiring automotive-grade reliability with anti-sulfur and moisture-resistant properties. The part carries AEC-Q200 qualification and is actively produced. Substitute parts are identified when equivalent electrical and mechanical specifications can be maintained while potentially offering improved tolerance or alternative feature sets within the same package class.

Substiute Parts

AT1206DRE073K3L

YAGEOIn Stock: 1116AT1206DRE073K3L Datasheet

Current PartRFQ

RT1206BRE073K3L

YAGEOIn Stock: 7784RT1206BRE073K3L Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT1206DRE073K3L is determined by the following critical parameters:

• Resistance Value: Must be 3.3 kOhms
• Package Format: Must be 1206 (3216 Metric)
• Power Rating: Must be 0.25W minimum
• Composition: Thin film construction
• Temperature Coefficient: ±50ppm/°C or better
• Operating Temperature Range: Must cover -55°C ~ 155°C
• RoHS Compliance: ROHS3 Compliant
• Moisture Sensitivity: MSL 1 or better

The RT1206BRE073K3L qualifies as a direct substitute because it maintains all critical electrical parameters while offering improved tolerance (±0.1% versus ±0.5%), making it suitable for applications with tighter tolerance requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the AT1206DRE073K3L and RT1206BRE073K3L are active production components from YAGEO with full ROHS3 compliance and MSL 1 rating. The primary distinction is tolerance specification: the AT series provides ±0.5% tolerance suitable for general-purpose applications, while the RT series offers ±0.1% tolerance for precision circuit requirements. Selection between these parts should be based on circuit tolerance requirements rather than availability or performance differences, as both maintain identical electrical and thermal characteristics within their respective tolerance bands.

Frequently Asked Questions (FAQ)

Q: Can RT1206BRE073K3L replace AT1206DRE073K3L in any application?

A: Yes. The RT1206BRE073K3L is a direct substitute with superior tolerance specification (±0.1% versus ±0.5%). It maintains all electrical, thermal, and mechanical parameters. Applications designed for AT1206DRE073K3L will function identically with RT1206BRE073K3L.

Q: What is the significance of tolerance difference between these parts?

A: Tolerance defines the maximum deviation from the nominal 3.3 kOhms value. AT1206DRE073K3L allows ±165 Ohms deviation; RT1206BRE073K3L allows ±33 Ohms deviation. Precision analog circuits benefit from tighter tolerance, while digital or general-purpose applications typically accept standard tolerance.

Q: Are both parts suitable for automotive applications?

A: The AT1206DRE073K3L carries AEC-Q200 automotive qualification with anti-sulfur and moisture-resistant properties. The RT1206BRE073K3L is a standard thin film resistor without explicit automotive features listed. Automotive applications requiring AEC-Q200 certification should specify AT1206DRE073K3L.

Q: Do these parts have identical physical dimensions?

A: Yes. Both parts use 1206 package format with identical dimensions: 3.10mm length, 1.60mm width, and 0.65mm maximum seated height. They are mechanically interchangeable on PCB layouts.

Q: What is MSL 1 rating significance?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture baking requirements. Both parts can be stored and handled without special moisture control procedures.