SPD62R-183M Equivalent & Substitute Parts

Part Overview

The SPD62R-183M is an 18 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications requiring moderate current handling and low DC resistance. This component operates across the industrial temperature range of -55°C to 125°C and maintains active product status with full RoHS3 compliance. Substitute parts are identified to provide alternative sourcing options when the primary component becomes unavailable or when design requirements necessitate different electrical characteristics within the same functional category.

Substiute Parts

SPD62R-183M

API Delevan Inc.In Stock: 1046SPD62R-183M Datasheet

Current PartRFQ

SRR5028-180Y

Bourns Inc.In Stock: 1664SRR5028-180Y Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPD62R-183M is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 18 µH (core functional requirement)
• Core type: Drum core, wirewound with ferrite material
• Shielding: Shielded configuration
• Mounting: Surface mount technology
• Package classification: Nonstandard SMD form factor

Secondary Compatibility Parameters:

• Current rating: Minimum 1.1 A saturation current
• DC resistance: Maximum 350 mOhm (primary part specification)
• Operating temperature: Minimum -55°C to 125°C range
• Compliance: RoHS3 and REACH requirements

The SRR5028-180Y from Bourns Inc. qualifies as a substitute based on matching inductance value, core type, shielding, and surface mount configuration. Variations in tolerance, current rating, and DC resistance represent trade-offs that must be evaluated against specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

SPD62R-183M Selection Criteria:

• Applications requiring extended low-temperature operation below -40°C
• Circuits with strict inductance tolerance requirements (±20%)
• Systems where higher DC resistance is acceptable or beneficial for damping

SRR5028-180Y Selection Criteria:

• Applications operating within -40°C to 125°C range
• Designs benefiting from lower DC resistance (110 mOhm vs. 350 mOhm)
• Higher current rating capability (1.25 A vs. 1.1 A)
• Tolerance of ±30% inductance variation

Both components maintain active product status, full RoHS3 compliance, and REACH unaffected classification. Selection between these parts depends on circuit-specific requirements for temperature range, resistance characteristics, and tolerance specifications rather than regulatory or availability factors.

Frequently Asked Questions (FAQ)

Q: Can SRR5028-180Y directly replace SPD62R-183M in all applications?

A: Direct replacement is possible only when circuit design accommodates the parameter differences. The SRR5028-180Y offers lower DC resistance (110 mOhm vs. 350 mOhm) and higher current rating (1.25 A vs. 1.1 A), which are generally beneficial. However, the wider inductance tolerance (±30% vs. ±20%) and reduced low-temperature rating (-40°C vs. -55°C) must be evaluated against specific circuit requirements.

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

A: The SPD62R-183M specifies 350 mOhm maximum DC resistance, while the SRR5028-180Y specifies 110 mOhm maximum. Lower DC resistance reduces power dissipation and heat generation in the inductor. Applications sensitive to resistive losses or thermal performance may require the lower-resistance SRR5028-180Y substitute.

Q: Are both parts suitable for high-reliability applications?

A: Both components carry RoHS3 compliance, REACH unaffected status, and MSL 1 (unlimited moisture sensitivity level) ratings, indicating suitability for standard industrial and commercial applications. Specific high-reliability requirements should be verified against individual application specifications.

Q: How do the physical dimensions compare?

A: SPD62R-183M dimensions are 0.260" L × 0.244" W × 0.118" H (6.60mm × 6.20mm × 3.00mm). SRR5028-180Y dimensions are 0.228" L × 0.228" W × 0.118" H (5.80mm × 5.80mm × 3.00mm). The SRR5028-180Y is slightly smaller in footprint while maintaining identical height, which may affect PCB layout considerations.

Q: What inductance tolerance should be specified for circuit design?

A: The SPD62R-183M provides ±20% tolerance, while the SRR5028-180Y provides ±30% tolerance. Circuit designs must accommodate the applicable tolerance range of the selected component. If ±20% tolerance is mandatory, the SPD62R-183M is the required selection.