DRQ74-101-R Equivalent & Substitute Parts

Part Overview

The DRQ74-101-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 ROHS3 compliant. The part is currently in active product status with 879 pieces available in inventory. Alternative components may be required due to supply constraints, design optimization, or application-specific performance requirements.

Substiute Parts

DRQ74-101-R

Eaton - Electronics DivisionIn Stock: 967DRQ74-101-R Datasheet

Current PartRFQ

SRF0703-101M

Bourns Inc.In Stock: 9347SRF0703-101M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DRQ74-101-R is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Dual-coil inductor array configuration (2 coils required)
• Inductance values in parallel configuration: 101.6 µH ±20% tolerance range (81.28 µH to 121.92 µH)
• Inductance values in series configuration: 406.4 µH ±20% tolerance range (325.12 µH to 487.68 µH)
• Current rating capability in parallel configuration: minimum 860 mA
• Current rating capability in series configuration: minimum 430 mA
• DC resistance characteristics compatible with application requirements
• Shielded construction to maintain electromagnetic isolation

Mechanical & Environmental Compatibility Criteria:

• Surface mount technology (SMD) mounting type
• Package footprint: 7.60mm x 7.60mm maximum
• Operating temperature range: -40°C to 125°C minimum
• Moisture sensitivity level: MSL 1 or equivalent
• ROHS3 compliance required

The SRF0703-101M from Bourns Inc. meets these substitution criteria within the specified tolerance and performance parameters.

Parameter Comparison

Engineering Selection Recommendations

DRQ74-101-R Selection Criteria:

• Primary choice when maximum current handling is required in parallel configuration (860 mA rating)
• Applications requiring lower DC resistance characteristics in both parallel and series configurations
• Designs with strict power dissipation constraints where resistance minimization is critical
• Active product status with established supply chain availability (879 pieces in stock)

SRF0703-101M Selection Criteria:

• Alternative when supply of DRQ74-101-R is constrained
• Applications where current requirements do not exceed 730 mA in parallel configuration or 367 mA in series configuration
• Designs where slightly increased DC resistance is acceptable within system performance margins
• Active product status with higher inventory availability (9300 pieces in stock)
• Compact height profile (3.60mm vs 4.45mm) for space-constrained PCB layouts

Both components maintain ROHS3 compliance, identical operating temperature ranges, and compatible package footprints. Selection between these parts should be based on application-specific current requirements and DC resistance tolerance.

Frequently Asked Questions (FAQ)

Q: Can SRF0703-101M directly replace DRQ74-101-R in all applications?

A: Direct replacement is possible only when application current requirements do not exceed the SRF0703-101M ratings (730 mA parallel, 367 mA series). The SRF0703-101M exhibits higher DC resistance in both configurations. Verify that increased resistance does not compromise system performance before substitution.

Q: What is the inductance tolerance impact when substituting these parts?

A: Both components share ±20% tolerance specifications. The nominal inductance values differ slightly (DRQ74-101-R: 101.6 µH parallel / 406.4 µH series; SRF0703-101M: 100 µH parallel / 400 µH series). These differences fall within the ±20% tolerance band and are electrically equivalent for most applications.

Q: Are there physical compatibility concerns with the height difference?

A: The SRF0703-101M is 0.85mm shorter (3.60mm vs 4.45mm). Both components share identical 7.60mm x 7.60mm footprints. Verify PCB clearance and component placement constraints before substitution. The reduced height may provide advantages in space-constrained designs.

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

A: Both components have MSL 1 (Unlimited) moisture sensitivity ratings, indicating identical handling requirements. Standard surface mount component storage and handling procedures apply to both parts.

Q: What compliance certifications apply to both substitute parts?

A: Both DRQ74-101-R and SRF0703-101M are ROHS3 compliant. The SRF0703-101M carries additional REACH Unaffected status. Both components operate across -40°C to 125°C temperature ranges and are suitable for industrial and commercial applications.

Q: How do the current saturation ratings compare?

A: DRQ74-101-R saturation: 990 mA (parallel) / 490 mA (series). SRF0703-101M saturation: 790 mA (parallel) / 390 mA (series). Applications operating near saturation conditions should verify that SRF0703-101M saturation margins remain acceptable.