DRQ125-331-R Equivalent & Substitute Parts

Part Overview

The DRQ125-331-R is a shielded 2-coil inductor array manufactured by Eaton - Electronics Division. This surface mount component operates across the temperature range of -40°C to 125°C and is classified as Active product status. The device provides dual inductance configurations: 1.33 mH when coils are connected in series and 332.6 µH when connected in parallel. Finding equivalent substitute parts is necessary to ensure supply chain continuity, manage inventory optimization, and maintain design flexibility across manufacturing batches.

Substiute Parts

DRQ125-331-R

Eaton - Electronics DivisionIn Stock: 893DRQ125-331-R Datasheet

Current PartRFQ

SRF1260-331M

Bourns Inc.In Stock: 1327SRF1260-331M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DRQ125-331-R are identified based on strict electrical and mechanical parameter alignment within the allowed tolerance specifications for 2-coil inductor arrays. The substitution logic is based on the following critical parameters:

Electrical Parameters:

• Inductance values in both parallel (332.6 µH nominal) and series (1.33 mH nominal) configurations must fall within the ±20% tolerance band
• Current ratings must meet or exceed the specified values for both parallel (1.06 A) and series (530 mA) configurations
• DC resistance values must be compatible with circuit requirements in both configurations

Mechanical Parameters:

• Surface mount technology with identical or compatible package footprint (12.50 mm x 12.50 mm base dimensions)
• Shielded construction to maintain electromagnetic isolation
• Operating temperature range of -40°C to 125°C minimum
• Tape & Reel packaging format for automated assembly compatibility

Compliance Parameters:

• ROHS3 compliance requirement
• Moisture Sensitivity Level 1 (Unlimited) classification
• Active product status to ensure ongoing availability

The SRF1260-331M from Bourns Inc. meets all substitution criteria within these defined parameters.

Parameter Comparison

Engineering Selection Recommendations

The SRF1260-331M from Bourns Inc. is a direct substitute for the DRQ125-331-R based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical current ratings (1.06 A parallel, 530 mA series) and saturation current specifications (1.22 A parallel, 610 mA series). Inductance values in both configurations fall within the specified ±20% tolerance band. DC resistance values for the SRF1260-331M are specified as maximum values, which remain compatible with circuit design parameters.

Mechanical Compatibility: Both components share identical base footprint dimensions (12.50 mm x 12.50 mm) and are housed in surface mount packages suitable for automated assembly. The height difference of 0.20 mm (6.00 mm versus 6.20 mm) is within standard PCB design clearance tolerances.

Compliance and Availability: Both parts maintain Active product status, ensuring continued supply chain availability. Both are ROHS3 compliant and classified as Moisture Sensitivity Level 1 (Unlimited), eliminating special handling requirements. Both are supplied in Tape & Reel format for high-volume manufacturing environments.

Thermal Performance: Identical operating temperature range (-40°C to 125°C) ensures equivalent thermal performance across all application environments.

Frequently Asked Questions (FAQ)

Q: Can the SRF1260-331M be used as a direct replacement for the DRQ125-331-R without PCB modifications?

A: Yes. Both components share identical base footprint dimensions (12.50 mm x 12.50 mm) and surface mount technology. The height difference of 0.20 mm does not require PCB layout changes for standard applications.

Q: Are the inductance values close enough for circuit operation?

A: Yes. The DRQ125-331-R specifies 332.6 µH (parallel) and 1.33 mH (series), while the SRF1260-331M provides 330 µH (parallel) and 1.32 mH (series). Both values fall within the ±20% tolerance specification, ensuring functional equivalence in circuit applications.

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

A: The DRQ125-331-R specifies 482 mOhm (parallel) and 1.93 Ohm (series). The SRF1260-331M specifies maximum values of 574 mOhm (parallel) and 2.29 Ohm (series). The SRF1260-331M values are higher but remain compatible with standard circuit design margins.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both components are classified as Moisture Sensitivity Level 1 (Unlimited), eliminating special moisture control requirements during storage and handling.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant and maintain identical environmental compliance certifications.

Q: Can these parts be mixed in the same production batch?

A: Yes. Both parts are supplied in Tape & Reel format with identical packaging specifications, allowing seamless integration into automated assembly processes.

Q: What is the current rating difference between parallel and series configurations?

A: The parallel configuration supports 1.06 A continuous current with 1.22 A saturation current. The series configuration supports 530 mA continuous current with 610 mA saturation current. Both parts maintain identical ratings in both configurations.