DC630-104K Equivalent & Substitute Parts Reference

Part Overview

The DC630-104K is a 100 µH unshielded wirewound inductor manufactured by API Delevan Inc., rated for 3.21 A continuous current with a maximum DC resistance of 95 mOhm. This through-hole radial component operates across the temperature range of -55°C to 125°C and is specified for 10 kHz inductance testing. The part is currently active in production with 856 pieces available in inventory.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design requirements demand improved compliance certifications, or when alternative core materials offer enhanced performance characteristics within the same electrical specifications.

Substiute Parts

DC630-104K

API Delevan Inc.In Stock: 875DC630-104K Datasheet

Current PartRFQ

DC630R-104K

API Delevan Inc.In Stock: 1939DC630R-104K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DC630-104K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Equivalence Requirements:

• Inductance value: 100 µH (exact match)
• Current rating: 3.21 A (exact match or higher)
• DC resistance: 95 mOhm maximum (exact match or lower)
• Inductance tolerance: ±10% (exact match)
• Saturation current: 6.8 A (exact match or higher)
• Operating temperature range: -55°C to 125°C (exact match or wider range)

Mechanical Equivalence Requirements:

• Mounting type: Through hole (exact match)
• Package configuration: Radial, vertical cylinder (exact match)
• Physical dimensions: 0.630" diameter (16.00 mm), 0.830" maximum seated height (21.08 mm) (exact match)
• Shielding classification: Unshielded (exact match)

The DC630R-104K qualifies as a direct substitute based on complete alignment with all electrical and mechanical parameters. The primary distinction is the core material composition: the DC630R-104K incorporates a ferrite drum core, whereas the DC630-104K uses a standard wirewound construction. Both configurations deliver identical electrical performance within the specified test conditions.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (DC630-104K): The DC630-104K remains the specified component when the original design documentation explicitly calls for this part number and when RoHS compliance is not a design requirement. This part is currently active in production with adequate inventory availability (856 pieces).

Substitute Part Selection (DC630R-104K): The DC630R-104K is the direct electrical and mechanical equivalent and is selected when:

1. Compliance Requirements: The application requires ROHS3 compliance certification. The DC630R-104K meets ROHS3 standards, whereas the DC630-104K is RoHS non-compliant.

2. Inventory Availability: The DC630R-104K has higher inventory availability (1,836 pieces) compared to the DC630-104K (856 pieces), supporting supply chain continuity.

3. Core Material Specification: The ferrite drum core construction of the DC630R-104K provides equivalent electrical performance while offering alternative core material characteristics within the identical electrical parameter envelope.

Both parts maintain identical electrical specifications, mechanical dimensions, mounting configuration, and operating temperature range. Selection between these parts is determined by compliance requirements and inventory considerations rather than electrical performance differences.

Frequently Asked Questions (FAQ)

Q: Can the DC630R-104K be used as a direct replacement for the DC630-104K in existing designs?

A: Yes. The DC630R-104K is electrically and mechanically equivalent to the DC630-104K. Both parts deliver 100 µH inductance at 3.21 A with 95 mOhm maximum DC resistance, identical tolerance specifications, and matching physical dimensions. The parts are interchangeable from a circuit performance perspective.

Q: What is the primary difference between these two parts?

A: The DC630R-104K incorporates a ferrite drum core construction, while the DC630-104K uses standard wirewound construction. Both configurations achieve identical electrical specifications. The DC630R-104K additionally carries ROHS3 compliance certification, whereas the DC630-104K is RoHS non-compliant.

Q: Are the physical dimensions identical between DC630-104K and DC630R-104K?

A: Yes. Both parts share identical physical specifications: 0.630 inches (16.00 mm) diameter and 0.830 inches (21.08 mm) maximum seated height. The radial, vertical cylinder package configuration is identical, ensuring compatibility with existing PCB layouts and through-hole mounting patterns.

Q: Which part should be selected for new designs?

A: For new designs, the DC630R-104K is recommended when ROHS3 compliance is required. Both parts are active in production. The selection should be based on specific compliance requirements and supply chain considerations rather than electrical performance, as both parts are electrically equivalent.

Q: Do these parts have different frequency response characteristics?

A: Both parts are specified for inductance testing at 10 kHz. No frequency response data beyond this test frequency is provided in the component specifications. The parts are equivalent within the specified test conditions.

Q: Can either part be substituted in high-frequency applications?

A: Substitution decisions for high-frequency applications must be based on the self-resonant frequency and Q factor specifications. These parameters are not provided in the available component data. Consult detailed datasheets or contact the manufacturer for frequency-dependent performance information.

Q: What is the saturation current rating, and why is it important?

A: Both parts have a saturation current (Isat) rating of 6.8 A. This parameter defines the maximum current level before the inductor enters saturation, at which point inductance begins to degrade. The 6.8 A saturation rating provides a safety margin above the 3.21 A continuous current rating.

Q: Are there any temperature-related differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C. Temperature performance is equivalent between the DC630-104K and DC630R-104K.