DC630-153K Equivalent & Substitute Parts Reference

Part Overview

The DC630-153K is a 15 µH unshielded wirewound inductor manufactured by API Delevan Inc., rated for 8.09 A continuous current with a maximum DC resistance of 15 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 895 pieces available in new original stock.

Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design requirements mandate RoHS compliance, or when alternative core materials provide performance advantages for specific applications while maintaining electrical and mechanical compatibility.

Substiute Parts

DC630-153K

API Delevan Inc.In Stock: 912DC630-153K Datasheet

Current PartRFQ

DC630R-153K

API Delevan Inc.In Stock: 1580DC630R-153K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DC630-153K is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part DC630R-153K qualifies as a direct equivalent based on the following criteria:

Electrical Parameter Equivalence:

• Inductance value: 15 µH (identical)
• Inductance tolerance: ±10% (identical)
• Current rating: 8.09 A (identical)
• Saturation current: 17.5 A (identical)
• DC resistance: 15 mOhm Max (identical)
• Shielding configuration: Unshielded (identical)
• Operating temperature range: -55°C to 125°C (identical)
• Test frequency: 10 kHz (identical)

Mechanical Parameter Equivalence:

• Mounting type: Through Hole (identical)
• Package configuration: Radial, Vertical Cylinder (identical)
• Diameter: 0.630" (16.00 mm) (identical)
• Maximum seated height: 0.830" (21.08 mm) (identical)

Core Material Difference: The DC630R-153K incorporates a ferrite drum core construction, whereas the DC630-153K uses standard wirewound construction. Both achieve identical electrical specifications at the 10 kHz test frequency, making them functionally interchangeable within the specified parameter envelope.

Parameter Comparison

Engineering Selection Recommendations

DC630-153K Selection Criteria: Select the DC630-153K when the design specification explicitly requires standard wirewound inductor construction or when RoHS non-compliant components are acceptable within the product's regulatory framework. This part is suitable for applications where core material specification is not a design constraint and legacy component compatibility is required.

DC630R-153K Selection Criteria: Select the DC630R-153K when RoHS3 compliance is mandated by product regulations, supply chain requirements, or customer specifications. The ferrite drum core construction provides equivalent electrical performance at the specified 10 kHz test frequency while offering improved regulatory compliance. The higher inventory level (1471 pieces versus 895 pieces) provides superior supply chain availability.

Substitution Basis: Both parts are manufactured by API Delevan Inc. and deliver identical electrical performance across all specified parameters: 15 µH inductance at ±10% tolerance, 8.09 A continuous current rating, 17.5 A saturation current, and 15 mOhm maximum DC resistance. Mechanical compatibility is complete, with identical through-hole radial mounting, package dimensions (0.630" diameter, 0.830" maximum height), and operating temperature range (-55°C to 125°C).

The substitution is valid for direct component replacement in circuit designs where the specified electrical and thermal characteristics are the controlling factors. No circuit redesign or performance re-qualification is required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can DC630R-153K replace DC630-153K in existing designs without circuit modification?

A: Yes. Both parts deliver identical electrical specifications at the 10 kHz test frequency: 15 µH inductance, 8.09 A current rating, 17.5 A saturation current, and 15 mOhm DC resistance. Mechanical compatibility is complete, including through-hole mounting, radial vertical cylinder package, and identical physical dimensions. No circuit redesign is required.

Q: What is the primary difference between DC630-153K and DC630R-153K?

A: The DC630R-153K uses ferrite drum core construction, while the DC630-153K uses standard wirewound construction. Both achieve identical electrical performance at the specified 10 kHz test frequency. The DC630R-153K is ROHS3 compliant, whereas the DC630-153K is RoHS non-compliant.

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

A: The inductance specifications for both parts are defined at 10 kHz. Performance characteristics at frequencies outside this test condition are not provided in the available technical parameters. Frequency-dependent behavior should be verified through manufacturer datasheets if operation outside the 10 kHz reference is required.

Q: Which part should be selected for new designs?

A: For new designs, DC630R-153K is the preferred selection due to ROHS3 compliance and higher inventory availability (1471 pieces versus 895 pieces). Both parts are active in production and suitable for new applications.

Q: Are both parts suitable for the full -55°C to 125°C operating temperature range?

A: Yes. Both DC630-153K and DC630R-153K are rated for continuous operation across the -55°C to 125°C temperature range. No thermal derating is specified within this envelope.

Q: Can these parts be used interchangeably in high-current transient applications?

A: Both parts have identical saturation current ratings of 17.5 A. Transient current handling is equivalent between the two parts. Applications requiring operation above 17.5 A will cause core saturation in both components.

Q: What is the significance of the ±10% inductance tolerance?

A: The ±10% tolerance defines the acceptable inductance range as 13.5 µH to 16.5 µH. Both DC630-153K and DC630R-153K share this tolerance specification. Circuit designs must account for this tolerance band in inductance-critical applications.

Q: Is shielding available for either part?

A: No. Both DC630-153K and DC630R-153K are unshielded designs. If electromagnetic shielding is required, alternative part numbers from the API Delevan product line must be evaluated.