HCTC-2.5-12.5 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The HCTC-2.5-12.5 is a 2.5 mH common mode choke manufactured by Signal Transformer, designed for two-line power line filtering applications. This through-hole component operates at 12.5A maximum current with 11mOhm DC resistance and functions across the temperature range of -55°C to 105°C. The part is currently active in production and RoHS3 compliant. Equivalent substitute parts may be required due to inventory availability, lead time considerations, or specific packaging requirements in manufacturing environments.

Substiute Parts

HCTC-2.5-12.5

Signal TransformerIn Stock: 949HCTC-2.5-12.5 Datasheet

Current PartRFQ

8114-RC

Bourns Inc.In Stock: 29018114-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HCTC-2.5-12.5 is determined by the following critical parameters:

• Inductance value: 2.5 mH @ 1 kHz
• Number of lines: 2-line configuration
• Current rating: 12.5A maximum
• DC resistance: 11mOhm maximum
• Mounting type: Through hole
• Operating temperature range: -55°C to 105°C
• Package configuration: Vertical, 4 pin

The substitute part 8114-RC from Bourns Inc. meets all these core electrical and mechanical specifications, making it a direct functional equivalent for the HCTC-2.5-12.5 in applications requiring identical electrical performance and through-hole mounting compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the HCTC-2.5-12.5 and 8114-RC are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

Electrical compatibility is assured, as both components share identical inductance, current rating, DC resistance, and operating temperature specifications. The primary distinction is physical footprint width: the HCTC-2.5-12.5 measures 0.600" wide while the 8114-RC measures 0.800" wide. PCB layout constraints and available board space should determine part selection when both are electrically suitable.

Inventory availability and lead time considerations may also influence selection, as the 8114-RC currently has higher stock levels (2799 pcs) compared to the HCTC-2.5-12.5 (885 pcs).

Frequently Asked Questions (FAQ)

Q: Can the 8114-RC directly replace the HCTC-2.5-12.5 in my circuit?

A: Yes, from an electrical standpoint. Both components have identical inductance (2.5 mH @ 1 kHz), current rating (12.5A), DC resistance (11mOhm), and operating temperature range (-55°C to 105°C). Physical board space must accommodate the 8114-RC's 0.800" width versus the HCTC-2.5-12.5's 0.600" width.

Q: What is the main physical difference between these parts?

A: The width dimension differs. The HCTC-2.5-12.5 is 0.600" wide (15.24mm), while the 8114-RC is 0.800" wide (20.32mm). Both maintain the same length (1.450") and height (1.500"), and both use vertical 4-pin through-hole mounting.

Q: Are both parts RoHS compliant?

A: Yes, both the HCTC-2.5-12.5 and 8114-RC are ROHS3 compliant and REACH unaffected.

Q: Which part should I choose if both fit my PCB layout?

A: Selection may be based on inventory availability, lead time, or packaging preference. The HCTC-2.5-12.5 comes in tray packaging, while the 8114-RC comes in bulk packaging. Verify your procurement and assembly requirements.

Q: Do these parts have different temperature ratings?

A: No, both components operate across the identical temperature range of -55°C to 105°C.