DRQ73-8R2-R Equivalent & Substitute Parts

Part Overview

The DRQ73-8R2-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: 8.93 µH in parallel connection and 35.72 µH in series connection, with a parallel current rating of 2.19 A. Finding equivalent substitute parts is necessary to ensure supply chain continuity, optimize procurement costs, and maintain design flexibility across manufacturing cycles.

Substiute Parts

DRQ73-8R2-R

Eaton - Electronics DivisionIn Stock: 756DRQ73-8R2-R Datasheet

Current PartRFQ

SRF0703-8R2M

Bourns Inc.In Stock: 3826SRF0703-8R2M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DRQ73-8R2-R is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

• Number of coils: 2 coils (fixed requirement)
• Inductance value in parallel configuration: 8.93 µH nominal (±20% tolerance allows 7.144 µH to 10.716 µH)
• Inductance value in series configuration: 35.72 µH nominal (±20% tolerance allows 28.576 µH to 42.864 µH)
• Current rating in parallel: 2.19 A minimum
• Current rating in series: 1.1 A minimum
• Shielding: Shielded construction required
• Operating temperature range: -40°C to 125°C minimum
• Mounting type: Surface Mount
• Package footprint: 7.60 mm x 7.60 mm (0.299" x 0.299")
• RoHS compliance: ROHS3 Compliant

The SRF0703-8R2M from Bourns Inc. meets all primary substitution criteria within the specified tolerance bands and operational parameters.

Parameter Comparison

Engineering Selection Recommendations

The SRF0703-8R2M from Bourns Inc. is a qualified substitute for the DRQ73-8R2-R based on the following engineering criteria:

Electrical Compatibility: Both components maintain identical current ratings (2.19 A parallel, 1.1 A series) and saturation current specifications (2.66 A parallel, 1.33 A series). Inductance values fall within the ±20% tolerance band specified for both parts. The SRF0703-8R2M exhibits higher DC resistance values (77.2 mOhm parallel vs. 59.2 mOhm, and 306 mOhm series vs. 236.8 mOhm), which must be evaluated against circuit power dissipation requirements.

Mechanical Compatibility: Both components share identical footprint dimensions (7.60 mm x 7.60 mm) and surface mount mounting type, ensuring PCB layout compatibility. Height difference of 0.05 mm (3.60 mm vs. 3.55 mm) is negligible for standard assembly processes.

Regulatory Compliance: Both parts are ROHS3 Compliant and carry Moisture Sensitivity Level 1 (Unlimited), meeting identical environmental and regulatory standards.

Product Status: Both components maintain Active product status, ensuring continued availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the SRF0703-8R2M replace the DRQ73-8R2-R in all applications?

A: The SRF0703-8R2M is electrically and mechanically compatible within the specified tolerance parameters. However, the higher DC resistance values must be evaluated against circuit thermal and power dissipation requirements. Applications sensitive to resistive losses should perform detailed analysis.

Q: What is the inductance tolerance impact when substituting?

A: Both parts specify ±20% tolerance. The DRQ73-8R2-R nominal parallel inductance is 8.93 µH, while the SRF0703-8R2M is 8.2 µH. This 0.73 µH difference (8.2% lower) falls within the combined tolerance band and is acceptable for standard filter and impedance matching applications.

Q: Are there PCB layout considerations when switching between these parts?

A: Both components use identical 7.60 mm x 7.60 mm footprints and surface mount technology. Height difference of 0.05 mm does not require PCB redesign. Existing footprints and assembly processes remain valid.

Q: How do the DC resistance differences affect circuit performance?

A: The SRF0703-8R2M exhibits 18 mOhm higher resistance in parallel configuration and 69.2 mOhm higher in series configuration. This increases resistive losses and heat generation. Circuits operating at maximum current ratings (2.19 A parallel) should calculate additional power dissipation: ΔP = I²ΔR.

Q: Are both parts RoHS compliant?

A: Yes. Both the DRQ73-8R2-R and SRF0703-8R2M are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited), meeting identical environmental standards.

Q: What packaging formats are available?

A: Both parts are supplied in Tape & Reel (TR) format, standard for automated assembly processes.