HCTC-2.4-17 Equivalent & Substitute Parts

Part Overview

The HCTC-2.4-17 is a 2.4 mH common mode choke (CMC) designed for two-line power filtering applications. Manufactured by Signal Transformer, this through-hole component operates at 17A maximum current with 8mOhm DC resistance. The part is currently active in production with 870 units in stock. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the critical performance parameters.

Substiute Parts

HCTC-2.4-17

Signal TransformerIn Stock: 932HCTC-2.4-17 Datasheet

Current PartRFQ

8120-RC

Bourns Inc.In Stock: 16708120-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCTC-2.4-17 is determined by strict equivalence across the following critical parameters:

• Inductance value: 2.4 mH @ 1 kHz
• Number of lines: 2-line configuration
• Current rating: 17A maximum
• DC resistance: 8mOhm maximum
• Operating temperature range: -55°C ~ 105°C
• Mounting type: Through Hole
• Package configuration: Vertical, 4 PC Pin
• RoHS compliance: ROHS3 Compliant

The Bourns 8120-RC meets all substitution criteria. Physical dimensions vary slightly (width: 0.900" vs. 0.700"), but height and pin configuration remain compatible with the original design envelope.

Parameter Comparison

Engineering Selection Recommendations

Both the HCTC-2.4-17 and 8120-RC are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability and supply chain requirements. The Bourns 8120-RC offers higher inventory availability (1567 units) compared to the Signal Transformer part (870 units). Both components meet identical electrical and thermal specifications for two-line common mode filtering at 17A operation.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 8120-RC replace the Signal Transformer HCTC-2.4-17 in existing designs?

A: Yes. Both parts maintain identical inductance (2.4 mH @ 1 kHz), current rating (17A), DC resistance (8mOhm), operating temperature range (-55°C ~ 105°C), and package configuration (Vertical, 4 PC Pin through-hole). The width dimension differs by 0.200" (5.08mm), but height and pin spacing remain compatible.

Q: What are the critical parameters that define substitution eligibility?

A: Inductance value, number of lines, current rating, DC resistance, operating temperature range, mounting type, and package configuration must match exactly. Both parts satisfy these requirements.

Q: Are there compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. No compliance differences exist.

Q: Does the physical dimension difference affect PCB layout?

A: The width increase from 0.700" to 0.900" must be accommodated in the PCB footprint. Height (1.650") and pin configuration remain identical, so vertical clearance and electrical connectivity are unaffected.