TCM0806S-120-2P Common Mode Choke Equivalent & Substitute Parts

Part Overview

The TCM0806S-120-2P is a 2-line common mode choke manufactured by TDK Corporation, designed for signal line filtering applications. This surface mount component operates at 12 Ohms impedance at 100 MHz with a maximum current rating of 100mA and 1 Ohm DC resistance. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing design support and procurement continuity.

Substiute Parts

TCM0806S-120-2P

TDK CorporationIn Stock: 1093TCM0806S-120-2P Datasheet

Current PartRFQ

TCM0605S-120-2P-T201

TDK CorporationIn Stock: 10141TCM0605S-120-2P-T201 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCM0806S-120-2P is determined by strict equivalence across the following electrical and mechanical parameters:

• Electrical Performance: Impedance (12 Ohms @ 100 MHz), current rating (100mA), and DC resistance (1 Ohm maximum) must remain identical
• Functional Configuration: 2-line common mode choke for signal line filtering
• Electrical Ratings: DC voltage rating (10V) and operating temperature range (-25°C ~ 85°C) must be maintained or exceeded
• Physical Compatibility: Surface mount mounting type with compatible package footprint
• Regulatory Compliance: ECCN and HTSUS classifications remain consistent across substitutes

The TCM0605S-120-2P-T201 qualifies as a manufacturer-recommended substitute based on identical electrical specifications and functional performance within the TCM-S series.

Parameter Comparison

Engineering Selection Recommendations

The TCM0605S-120-2P-T201 is the manufacturer-recommended substitute for the obsolete TCM0806S-120-2P. Both components maintain identical electrical specifications and functional performance within the TCM-S series. The substitute part carries active product status with ROHS3 compliance and REACH unaffected designation, providing improved long-term availability and regulatory alignment compared to the obsolete original part.

The primary design consideration is package footprint transition from 0302 (0806 Metric) to 0202 (0505 Metric), which requires PCB layout modification. Physical dimensions are reduced: length from 0.033" to 0.026", width from 0.026" to 0.020", and height from 0.018" to 0.014". Electrical performance and current handling capacity remain unchanged.

Frequently Asked Questions (FAQ)

Q: Can TCM0605S-120-2P-T201 be used as a direct replacement for TCM0806S-120-2P?

A: Electrical substitution is valid. Both parts deliver identical impedance (12 Ohms @ 100 MHz), current rating (100mA), and DC resistance (1 Ohm). Physical footprint differs, requiring PCB layout modification from 0302 to 0202 package format.

Q: What are the key differences between these parts?

A: Electrical specifications are identical. The substitute features a smaller 0202 (0505 Metric) package versus the original 0302 (0806 Metric) package. The substitute part is active with ROHS3 compliance, while the original is obsolete.

Q: Are there packaging format differences?

A: Yes. The original TCM0806S-120-2P uses a 4-lead package. The substitute TCM0605S-120-2P-T201 uses a 4 PC Pad configuration in a smaller footprint. Both are surface mount components with identical MSL rating of 1 (Unlimited).

Q: Does the substitute meet the same regulatory requirements?

A: Both parts share identical ECCN (EAR99) and HTSUS (8504.50.8000) classifications. The substitute additionally carries ROHS3 compliance and REACH unaffected status, providing enhanced regulatory alignment.

Q: What inventory status should be considered?

A: The original part has 996 pieces in stock with obsolete status. The substitute has 10,100 pieces in stock with active product status, providing superior long-term procurement availability.