LPTC-V-42.5-2-200 Equivalent & Substitute Parts

Part Overview

The LPTC-V-42.5-2-200 is a Common Mode Choke (CMC) manufactured by Signal Transformer, designed for power line filtering applications. This through-hole mounted component provides 42.5 mH inductance at 1 kHz with a 2A current rating and 200 mOhm DC resistance across two lines. The part is Active in product status and maintains full compliance with RoHS3 and REACH regulations. Substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining critical electrical and mechanical compatibility parameters.

Substiute Parts

LPTC-V-42.5-2-200

Signal TransformerIn Stock: 1088LPTC-V-42.5-2-200 Datasheet

Current PartRFQ

LPTC-V-6.8-2-200

Signal TransformerIn Stock: 1601LPTC-V-6.8-2-200 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts within the LPTC-V series are qualified based on the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

• Manufacturer: Signal Transformer
• Series: LPTC-V
• Filter Type: Power Line
• Number of Lines: 2
• Current Rating (Max): 2A
• DC Resistance (DCR) (Max): 200 mOhm
• Operating Temperature: -55°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: Vertical, No Base, 4 PC Pin
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected

Variable Parameter (Allows Substitution):

• Inductance @ Frequency: Different inductance values within the LPTC-V series allow for application-specific selection while maintaining all other electrical and mechanical characteristics.

The LPTC-V-6.8-2-200 substitute part maintains identical electrical performance specifications (current rating, DCR, operating temperature) and mechanical compatibility (mounting type, package configuration, pin count) while offering a lower inductance value of 6.8 mH @ 1 kHz.

Parameter Comparison

Engineering Selection Recommendations

Both the LPTC-V-42.5-2-200 and LPTC-V-6.8-2-200 are Active products with full RoHS3 compliance and REACH unaffected status, ensuring regulatory compliance for current and future applications. Selection between these parts should be based on the specific inductance requirement of the application circuit.

The LPTC-V-42.5-2-200 provides higher inductance filtering capability at 42.5 mH, suitable for applications requiring greater attenuation of common mode noise across the 1 kHz reference frequency. The LPTC-V-6.8-2-200 offers reduced inductance at 6.8 mH with a correspondingly smaller physical footprint, appropriate for space-constrained designs or applications with lower inductance filtering requirements.

Both parts maintain identical current handling capacity (2A), DC resistance (200 mOhm), and thermal operating range (-55°C to 125°C), ensuring equivalent electrical performance in terms of power dissipation and thermal stability. The through-hole mounting configuration and 4-pin vertical package remain consistent across both options, allowing direct PCB layout compatibility with appropriate footprint adjustments for the dimensional differences.

Frequently Asked Questions (FAQ)

Q: Can the LPTC-V-6.8-2-200 be used as a direct replacement for the LPTC-V-42.5-2-200?

A: Direct replacement depends on the circuit's inductance requirement. Both parts share identical electrical specifications for current rating (2A), DC resistance (200 mOhm), and operating temperature range (-55°C to 125°C). However, the inductance values differ significantly (42.5 mH versus 6.8 mH). Substitution is valid only if the application circuit can function with the lower inductance value of 6.8 mH @ 1 kHz.

Q: Are there physical footprint compatibility concerns between these parts?

A: Both parts use identical package configurations (Vertical, No Base, 4 PC Pin through-hole mounting). However, physical dimensions differ: the LPTC-V-42.5-2-200 measures 1.260" diameter x 0.827" length with 1.220" maximum height, while the LPTC-V-6.8-2-200 measures 0.866" diameter x 0.512" length with 0.827" maximum height. PCB layout and clearance requirements must be evaluated for each specific design.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the LPTC-V-42.5-2-200 and LPTC-V-6.8-2-200 are RoHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (Unlimited). Both parts are Active in product status, ensuring ongoing manufacturer support and availability.

Q: What is the significance of the 200 mOhm DC resistance specification?

A: The 200 mOhm maximum DC resistance is identical for both parts and represents the resistive component of the choke coil. This specification determines power dissipation at the rated 2A current and affects thermal performance. At 2A, maximum power dissipation is 0.8W (I²R = 4 × 0.2 = 0.8W) for both parts.

Q: Are there packaging differences between the main part and substitute?

A: The main part (LPTC-V-42.5-2-200) is listed with standard packaging notation, while the substitute (LPTC-V-6.8-2-200) specifies Tray packaging. Both use identical component-level package configurations (Vertical, No Base, 4 PC Pin). The packaging notation refers to the quantity container format for procurement and does not affect component electrical or mechanical characteristics.

Q: What determines substitution eligibility within the LPTC-V series?

A: Substitution within the LPTC-V series is determined by maintaining constant values for: manufacturer (Signal Transformer), series designation (LPTC-V), filter type (Power Line), number of lines (2), current rating (2A), DC resistance (200 mOhm), operating temperature range (-55°C to 125°C), mounting type (Through Hole), and package configuration (Vertical, No Base, 4 PC Pin). Inductance values may vary across the series to accommodate different application requirements.