ASPI-0704S-680M-T Equivalent & Substitute Parts

Part Overview

The ASPI-0704S-680M-T is a 68 µH shielded drum core, wirewound inductor manufactured by Abracon LLC, rated for 690 mA continuous current with 380mOhm DC resistance. This surface mount component operates across -40°C to 125°C and is ROHS3 compliant with unlimited moisture sensitivity rating. The part is currently active in production. Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing, improved performance characteristics, or enhanced availability across different manufacturers.

Substiute Parts

ASPI-0704S-680M-T

Abracon LLCIn Stock: 2230ASPI-0704S-680M-T Datasheet

Current PartRFQ

CDRH74NP-680MC-B

Sumida America Components Inc.In Stock: 16529CDRH74NP-680MC-B Datasheet

MFR RecommendedRFQ

SLF7045T-680MR75-H

TDK CorporationIn Stock: 3308SLF7045T-680MR75-H Datasheet

MFR RecommendedRFQ

SRR7045-680M

Bourns Inc.In Stock: 17270SRR7045-680M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ASPI-0704S-680M-T are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 68 µH (±20% tolerance maintained)
• Current rating: minimum 690 mA
• DC resistance: maximum 380mOhm
• Core material: Ferrite
• Shielding: Shielded construction
• Mounting: Surface mount
• Package footprint: 7.30mm x 7.30mm nominal dimensions
• Operating temperature: -40°C minimum to 100°C minimum upper limit
• Compliance: ROHS3 compliant

Parts meeting these criteria are electrically and mechanically interchangeable within the specified parameter ranges. Variations in saturation current, Q factor, and self-resonant frequency do not preclude substitution when primary electrical parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

CDRH74NP-680MC-B (Sumida America Components Inc.): This part maintains identical electrical specifications to the ASPI-0704S-680M-T with matching current rating and DC resistance. Both parts share the same package footprint and height. The Sumida part is active in production. The upper operating temperature limit is 100°C, which is 25°C lower than the Abracon part. Selection of this substitute requires verification that the application does not exceed 100°C ambient or component temperature conditions.

SLF7045T-680MR75-H (TDK Corporation): This part meets the primary substitution criteria with higher current rating (750 mA) and lower DC resistance (324mOhm Max). The package footprint is slightly smaller (7.00mm x 7.00mm) with marginally greater height (4.80mm). This part carries AEC-Q200 automotive qualification. However, the product status is listed as "Not For New Designs," indicating TDK has discontinued this line for new applications. Use of this part is restricted to legacy system support or existing design maintenance only.

SRR7045-680M (Bourns Inc.): This part exceeds the primary substitution criteria with the highest current rating (1.2 A) and lowest DC resistance (210mOhm Max). The package footprint is smaller (7.00mm x 7.00mm) with greater height (4.80mm). The part is active in production with full operating temperature range (-40°C to 125°C). The improved electrical performance characteristics make this part suitable for applications requiring enhanced current handling or reduced power dissipation. PCB layout modifications may be required due to the different package dimensions.

Frequently Asked Questions (FAQ)

Q: Can CDRH74NP-680MC-B be used as a direct replacement for ASPI-0704S-680M-T?

A: Yes, within the constraint that the application operating temperature does not exceed 100°C. Both parts share identical inductance, current rating, DC resistance, and package footprint. The Sumida part is active in production with equivalent compliance certifications.

Q: What are the mechanical differences between substitute parts?

A: CDRH74NP-680MC-B maintains the same 7.30mm x 7.30mm footprint and 4.50mm height as the original part. SLF7045T-680MR75-H and SRR7045-680M both use a smaller 7.00mm x 7.00mm footprint with 4.80mm height. PCB layout and land pattern modifications are required when switching to the smaller footprint parts.

Q: Why is SLF7045T-680MR75-H marked "Not For New Designs"?

A: This designation indicates that TDK has discontinued this product line for new applications. The part remains available for existing designs and legacy system support. New designs should select from parts with "Active" product status: CDRH74NP-680MC-B or SRR7045-680M.

Q: What is the advantage of SRR7045-680M over the original part?

A: The Bourns SRR7045-680M provides superior electrical performance with 1.2 A current rating (versus 690 mA) and 210mOhm maximum DC resistance (versus 380mOhm). This results in lower power dissipation and higher current capacity. The trade-off is a different package footprint requiring PCB layout modification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1), matching the compliance profile of the original ASPI-0704S-680M-T.

Q: Can SRR7045-680M be used in applications requiring AEC-Q200 qualification?

A: The SRR7045-680M does not carry AEC-Q200 certification. Only SLF7045T-680MR75-H is listed with AEC-Q200 qualification. For automotive applications requiring this certification, SLF7045T-680MR75-H is the only qualified substitute, despite its "Not For New Designs" status.