SDS680R-104M Equivalent & Substitute Parts

Part Overview

The SDS680R-104M is a 100 µH shielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 300 mA continuous current with a maximum DC resistance of 480 mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is designed for applications requiring compact, shielded inductive filtering and energy storage in power conversion circuits.

The SDS680R-104M maintains Active product status with 3035 pieces in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design optimization where alternative manufacturers' components meet or exceed the electrical and mechanical specifications of the original part.

Substiute Parts

SDS680R-104M

API Delevan Inc.In Stock: 3129SDS680R-104M Datasheet

Current PartRFQ

7445120

Würth ElektronikIn Stock: 49897445120 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SDS680R-104M are identified based on strict electrical and mechanical parameter matching within the allowed tolerances for this product category. The substitution logic is based on the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 100 µH at 100 kHz test frequency
• Inductance tolerance: ±20%
• Current rating: 300 mA minimum
• DC resistance: 480 mOhm maximum
• Shielding: Shielded configuration required

Mechanical Equivalence Criteria:

• Core type: Drum core wirewound construction
• Mounting: Surface mount technology
• Package dimensions: 0.260" L x 0.175" W x 0.115" H maximum
• Packaging format: Tape & Reel (TR)

Compliance Criteria:

• RoHS3 compliance required
• Moisture sensitivity level: 1 (Unlimited)
• Active product status

The Würth Elektronik part number 7445120 satisfies all electrical and mechanical equivalence criteria and maintains full compliance with environmental and regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7445120 is a direct electrical and mechanical equivalent to the SDS680R-104M. Both components are Active products with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility in regulated applications and long-term storage without degradation.

The 7445120 substitute provides an extended operating temperature range of -40°C to 125°C compared to the SDS680R-104M specification of -40°C to 85°C. This extended thermal capability does not introduce incompatibility; rather, it provides additional design margin for applications operating at elevated ambient temperatures or with thermal cycling requirements.

Both parts maintain identical electrical performance at the 100 kHz test frequency, with matching inductance values, tolerances, current ratings, and DC resistance specifications. The identical physical footprint (0.260" x 0.175" x 0.115") ensures direct PCB layout compatibility without redesign.

Selection between these parts should be based on availability, lead time, cost considerations, and supplier preference, as electrical and mechanical performance are equivalent within the specified operating envelope.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7445120 be used as a direct replacement for the SDS680R-104M in existing designs?

A: Yes. The 7445120 is electrically and mechanically equivalent. Both components have identical inductance (100 µH ±20%), current rating (300 mA), DC resistance (480 mOhm max), package dimensions (0.260" x 0.175" x 0.115"), and mounting type (surface mount). No PCB layout modifications are required.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution eligibility is determined by: inductance value (100 µH), inductance tolerance (±20%), current rating (300 mA minimum), DC resistance (480 mOhm maximum), and shielding configuration (shielded). All substitute parts must meet or exceed these specifications at the 100 kHz test frequency.

Q: Does the extended temperature range of the 7445120 (-40°C to 125°C) affect compatibility?

A: No. The extended temperature range of the substitute part does not create incompatibility. The SDS680R-104M operates within -40°C to 85°C; the 7445120 supports this range and extends capability to 125°C. Applications operating within the original -40°C to 85°C envelope experience no adverse effects.

Q: Are both parts available in the same packaging format?

A: Yes. Both the SDS680R-104M and 7445120 are supplied in Tape & Reel (TR) packaging, ensuring compatibility with automated assembly processes and standard component handling procedures.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain Moisture Sensitivity Level 1 (Unlimited), allowing unlimited shelf life without desiccant storage requirements.

Q: Are there any frequency-dependent performance differences between these parts?

A: Both parts are tested and specified at 100 kHz. The SDS680R-104M has a self-resonant frequency of 10 MHz; the 7445120 has a self-resonant frequency of 8 MHz. Both values are sufficiently high for typical power conversion and filtering applications operating below 1 MHz.