HCT-682 Equivalent & Substitute Parts

Part Overview

The HCT-682 is a 17.6 µH shielded toroidal inductor manufactured by API Delevan Inc., rated for 9.32 A continuous current with a maximum DC resistance of 12.3 mOhm. This component is classified as Active product status with 1019 units in current inventory. The HCT-682 operates across a temperature range of -30°C to 130°C and is designed for surface mount applications in nonstandard packaging. Substitute parts are identified when equivalent electrical performance can be maintained within the allowable parameter tolerances for this inductor category, particularly when original stock availability is limited or when design requirements permit relaxed shielding specifications.

Substiute Parts

HCT-682

API Delevan Inc.In Stock: 1101HCT-682 Datasheet

Current PartRFQ

PE-53683NL

Pulse ElectronicsIn Stock: 1164PE-53683NL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The PE-53683NL from Pulse Electronics is identified as a substitute based on the following electrical and mechanical compatibility criteria:

Allowable Parameter Variance:

• DC Resistance: Both parts specify 12.3 mOhm maximum, providing equivalent power dissipation characteristics
• Current Rating: PE-53683NL rated at 10.9 A exceeds the HCT-682 requirement of 9.32 A, ensuring thermal margin
• Mounting Type: Both components are surface mount in nonstandard packaging with comparable footprint dimensions (24.00 mm vs. 23.88 mm length; 10.16 mm vs. 9.91 mm height)
• Operating Temperature: PE-53683NL range of -40°C to 130°C encompasses the HCT-682 specification of -30°C to 130°C
• ECCN and HTSUS Classification: Identical regulatory codes confirm equivalent product classification

Critical Difference:

• Inductance: PE-53683NL provides 9.4 µH versus HCT-682 at 17.6 µH (46.6% lower)
• Shielding: PE-53683NL is unshielded; HCT-682 is shielded

Substitution is valid only in applications where the lower inductance value and absence of shielding do not compromise circuit performance.

Parameter Comparison

Engineering Selection Recommendations

HCT-682 Selection Criteria:

• Applications requiring 17.6 µH inductance value with tight tolerance
• Designs where electromagnetic shielding is mandatory to prevent coupling or interference
• Circuits operating within the -30°C to 130°C temperature specification
• RoHS non-compliant applications or legacy system requirements

PE-53683NL Selection Criteria:

• Applications tolerant of 9.4 µH inductance (approximately 47% lower than HCT-682)
• Designs where unshielded inductors are acceptable or preferred for cost optimization
• Systems requiring ROHS3 compliance and extended low-temperature operation (-40°C)
• Circuits where the higher current rating (10.9 A) provides additional thermal margin

Compliance Consideration: PE-53683NL meets ROHS3 environmental standards, whereas HCT-682 is RoHS non-compliant. Selection should align with product environmental certification requirements.

Frequently Asked Questions (FAQ)

Q: Can PE-53683NL directly replace HCT-682 in all applications?

A: No. The 46.6% inductance difference (9.4 µH vs. 17.6 µH) and absence of shielding in PE-53683NL require circuit-level validation. Substitution is valid only when the application can tolerate these electrical differences without performance degradation.

Q: What is the primary electrical difference between these inductors?

A: The HCT-682 provides 17.6 µH inductance with shielding, while PE-53683NL provides 9.4 µH without shielding. Both maintain identical DC resistance (12.3 mOhm max) and support the required current levels.

Q: Are the physical dimensions compatible?

A: Yes. Both components are surface mount in nonstandard packaging with comparable footprints. HCT-682 measures 24.00 mm × 24.00 mm × 10.16 mm (height); PE-53683NL measures 23.88 mm × 23.88 mm × 9.91 mm (height). Dimensional variance is within typical PCB layout tolerance.

Q: Which part should be selected for new designs?

A: Selection depends on inductance requirement and environmental compliance. For 17.6 µH applications, HCT-682 is the specified component. For 9.4 µH applications requiring ROHS3 compliance, PE-53683NL is appropriate. Verify inductance value against circuit design specifications before selection.

Q: Does the unshielded design of PE-53683NL affect performance?

A: Shielding reduces electromagnetic coupling and interference. In applications sensitive to EMI or requiring isolation from adjacent components, the shielded HCT-682 is required. In non-critical applications, unshielded PE-53683NL may be acceptable.

Q: What is the temperature operating range difference?

A: HCT-682 operates from -30°C to 130°C. PE-53683NL extends the low-temperature limit to -40°C while maintaining the same 130°C upper limit. For applications below -30°C, PE-53683NL provides additional margin.