SRF2012A-161YA Common Mode Choke Equivalent & Substitute Parts

Part Overview

The SRF2012A-161YA is a 2-line common mode choke manufactured by Bourns Inc., designed for signal line filtering applications. This surface mount component operates at 160 Ohms impedance @ 100 MHz with a maximum current rating of 350mA and is AEC-Q200 rated for automotive applications. The part is currently active in production with full inventory availability. Equivalent and substitute parts are identified to support procurement flexibility, design revisions, or supply chain optimization while maintaining electrical and mechanical compatibility within specified tolerances.

Substiute Parts

SRF2012A-161YA

Bourns Inc.In Stock: 1630SRF2012A-161YA Datasheet

Current PartRFQ

SRF3216A-161Y

Bourns Inc.In Stock: 3102SRF3216A-161Y Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The SRF3216A-161Y qualifies as a parametric equivalent to the SRF2012A-161YA based on the following critical electrical parameters:

• Identical impedance specification: 160 Ohms @ 100 MHz
• Identical current rating: 350mA maximum
• Identical voltage rating: 50V DC
• Identical operating temperature range: -40°C ~ 125°C
• Identical filter type and line configuration: 2-line signal line common mode choke
• Identical package configuration: Horizontal, 4 PC Pad
• Identical compliance certifications: AEC-Q200, ROHS3, REACH Unaffected

The primary difference between these parts is the physical footprint size and DC resistance specification, which are secondary considerations when electrical performance requirements are met.

Parameter Comparison

Engineering Selection Recommendations

Both the SRF2012A-161YA and SRF3216A-161Y are active production components with full AEC-Q200 automotive qualification and ROHS3 compliance. Selection between these parts depends on PCB layout constraints and available board space.

The SRF2012A-161YA is the preferred choice for space-constrained applications requiring the smallest possible footprint (2.00mm x 1.20mm x 1.40mm maximum height) with lower DC resistance (350mOhm).

The SRF3216A-161Y is suitable for applications where PCB real estate is available and the larger footprint (3.20mm x 1.60mm x 2.20mm maximum height) is acceptable. This part carries a slightly higher DC resistance specification (400mOhm) but maintains identical electrical performance across all critical filtering parameters.

Both parts are suitable for direct substitution in signal line common mode choke applications operating within the specified voltage, current, temperature, and impedance parameters.

Frequently Asked Questions (FAQ)

Q: Can the SRF3216A-161Y replace the SRF2012A-161YA in existing designs?

A: Yes, provided PCB layout accommodates the larger footprint (3.20mm x 1.60mm versus 2.00mm x 1.20mm). All electrical parameters, impedance, current rating, voltage rating, and operating temperature range are identical. The 4 PC Pad package configuration is identical on both parts.

Q: What is the difference in DC resistance between these parts?

A: The SRF2012A-161YA specifies 350mOhm maximum DC resistance, while the SRF3216A-161Y specifies 400mOhm maximum. This 50mOhm difference is within normal manufacturing tolerance for common mode chokes in this impedance class and does not affect filtering performance at the specified 160 Ohms @ 100 MHz impedance.

Q: Are both parts AEC-Q200 qualified?

A: Yes, both the SRF2012A-161YA and SRF3216A-161Y carry AEC-Q200 automotive qualification and are ROHS3 compliant with REACH unaffected status.

Q: What is the moisture sensitivity level for these parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Direct interchangeability on the same PCB is not possible due to different footprint dimensions. PCB layout modification is required to accommodate the SRF3216A-161Y if substituting for the SRF2012A-161YA, or vice versa.