DRQ73-R33-R Equivalent & Substitute Parts

Part Overview

The DRQ73-R33-R is a shielded 2-coil inductor array manufactured by Eaton - Electronics Division. This surface mount component operates across a temperature range of -40°C to 125°C and is classified as Active product status. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor array category. Substitution becomes necessary due to inventory availability, supply chain considerations, or design flexibility requirements.

Substiute Parts

DRQ73-R33-R

Eaton - Electronics DivisionIn Stock: 2215DRQ73-R33-R Datasheet

Current PartRFQ

SRF0703-R33M

Bourns Inc.In Stock: 2411SRF0703-R33M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DRQ73-R33-R with the SRF0703-R33M is based on the following alignment criteria:

Electrical Parameter Compatibility:

• Both components feature 2 coils with shielded construction
• Inductance values in parallel configuration fall within the ±20% tolerance band (306 nH vs. 330 nH)
• Inductance values in series configuration fall within the ±20% tolerance band (1.224 µH vs. 1.32 µH)
• Current ratings are identical across parallel and series configurations (6.19 A parallel; 3.1 A series)
• Current saturation ratings are identical (14.4 A parallel; 7.18 A series)

Mechanical & Environmental Compatibility:

• Identical mounting type (Surface Mount)
• Identical footprint dimensions (0.299" L x 0.299" W / 7.60mm x 7.60mm)
• Height differential within acceptable tolerance (0.140" vs. 0.142")
• Identical operating temperature range (-40°C ~ 125°C)
• Both ROHS3 compliant
• Both MSL 1 (Unlimited)

Packaging:

• Both supplied in Tape & Reel (TR) format

The SRF0703-R33M operates within the specified electrical and mechanical parameters of the DRQ73-R33-R, permitting direct substitution in applications where the inductance tolerance band and DCR specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

DRQ73-R33-R (Eaton - Electronics Division)

Select this part when:

• Original design specification requires Eaton component qualification
• Lower DC resistance values are critical to circuit performance (7.4 mOhm parallel; 29.6 mOhm series)
• Eaton supply chain or logistics preferences apply
• Active product status with established manufacturing continuity is required

SRF0703-R33M (Bourns Inc.)

Select this part when:

• Bourns component qualification is acceptable within design parameters
• Inductance values at the upper tolerance band (330 nH parallel; 1.32 µH series) are acceptable
• Higher maximum DC resistance specifications (9.2 mOhm parallel; 40 mOhm Max series) do not impact circuit performance
• Bourns supply chain availability or cost structure is advantageous
• Active product status with established manufacturing continuity is required

Both components maintain ROHS3 compliance and MSL 1 (Unlimited) ratings, ensuring compatibility with standard surface mount assembly processes and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the SRF0703-R33M directly replace the DRQ73-R33-R in existing designs?

A: Yes, the SRF0703-R33M operates within the specified electrical and mechanical parameters of the DRQ73-R33-R. The inductance values in both parallel and series configurations fall within the ±20% tolerance band. Identical current ratings, saturation ratings, operating temperature range, and footprint dimensions support direct substitution. DC resistance values are higher but remain within acceptable engineering ranges for inductor array applications.

Q: What are the key electrical differences between these two parts?

A: The primary electrical differences are inductance and DC resistance values. The SRF0703-R33M exhibits slightly higher inductance (330 nH parallel vs. 306 nH; 1.32 µH series vs. 1.224 µH) and higher maximum DC resistance (9.2 mOhm parallel vs. 7.4 mOhm; 40 mOhm Max series vs. 29.6 mOhm). Both differences fall within acceptable tolerance bands for this component category.

Q: Are the physical dimensions identical?

A: The footprint dimensions are identical (0.299" L x 0.299" W / 7.60mm x 7.60mm). Height differs slightly (0.140" vs. 0.142"), a 0.002" variance that does not impact PCB assembly or clearance requirements for standard surface mount applications.

Q: Do both parts meet the same compliance standards?

A: Yes, both the DRQ73-R33-R and SRF0703-R33M are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.

Q: What is the tolerance specification for these inductor arrays?

A: Both components carry a ±20% inductance tolerance specification. This tolerance band encompasses the inductance variations between the two parts, confirming substitution compatibility.

Q: Can these parts be used interchangeably in series and parallel configurations?

A: Yes, both components support series and parallel coil configurations with identical current ratings (6.19 A parallel; 3.1 A series) and identical current saturation ratings (14.4 A parallel; 7.18 A series). Configuration selection depends on circuit requirements, not component selection.

Q: What operating temperature range do these components support?

A: Both the DRQ73-R33-R and SRF0703-R33M operate across -40°C to 125°C, providing identical thermal performance specifications for industrial and commercial applications.