TCM0806G-900-2P Common Mode Choke Equivalent & Substitute Parts

Part Overview

The TCM0806G-900-2P is a 2-line common mode choke manufactured by TDK Corporation, designed for signal line filtering applications. This surface mount component operates at 90 Ohms impedance at 100 MHz with a maximum current rating of 100mA and DC resistance of 2.7 Ohm. The product is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

TCM0806G-900-2P

TDK CorporationIn Stock: 20249TCM0806G-900-2P Datasheet

Current PartRFQ

MCZ0806AH900L2TA0G

TDK CorporationIn Stock: 10114MCZ0806AH900L2TA0G Datasheet

MFR RecommendedRFQ

EXC-14CE900U

Panasonic Electronic ComponentsIn Stock: 35297EXC-14CE900U Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCM0806G-900-2P is determined by the following critical parameters:

• Impedance @ Frequency: 90 Ohms @ 100 MHz (must match exactly)
• Number of Lines: 2-line configuration (must match)
• Mounting Type: Surface Mount (must match)
• Package / Case: 0302 (0806 Metric), 4 Lead (must match)
• Filter Type: Signal Line (must match)

Secondary parameters that may vary within acceptable ranges for substitution:

• Current Rating (Max): Substitute must meet or exceed 100mA requirement
• DC Resistance (DCR): Substitute must not significantly exceed 2.7 Ohm baseline
• Voltage Rating - DC: Substitute must meet or exceed 10V requirement
• Operating Temperature: Substitute must cover or exceed -25°C ~ 85°C range

Two substitute parts meet the primary substitution criteria:

1. MCZ0806AH900L2TA0G (TDK Corporation) - Manufacturer recommended substitute with identical core specifications
2. EXC-14CE900U (Panasonic Electronic Components) - Cross-manufacturer equivalent with enhanced current rating

Parameter Comparison

Engineering Selection Recommendations

MCZ0806AH900L2TA0G is the manufacturer-recommended substitute from TDK Corporation. This part maintains identical impedance, line configuration, and mounting specifications. The primary design consideration is the increased DC resistance (4 Ohm versus 2.7 Ohm) and reduced DC voltage rating (5V versus 10V). This substitute is suitable for applications where the 5V DC rating is sufficient and the higher DCR does not compromise circuit performance. The part is ROHS3 compliant and carries MSL 1 rating.

EXC-14CE900U is an active product from Panasonic Electronic Components that meets all primary substitution criteria. This part offers enhanced current rating (130mA versus 100mA) and lower DC resistance (2.5 Ohm versus 2.7 Ohm), providing improved performance margins. The DC voltage rating is 5V, consistent with MCZ0806AH900L2TA0G. The EXC-14CE900U is ROHS3 compliant, carries MSL 1 rating, and maintains active product status, ensuring long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can MCZ0806AH900L2TA0G be used as a direct replacement for TCM0806G-900-2P?

A: MCZ0806AH900L2TA0G meets the core electrical and mechanical specifications for substitution. The impedance, line configuration, package, and mounting type are identical. However, the reduced DC voltage rating (5V versus 10V) and increased DCR (4 Ohm versus 2.7 Ohm) must be evaluated against circuit requirements. If the application operates at or below 5V DC and can tolerate the higher DCR, this substitute is compatible.

Q: What are the advantages of EXC-14CE900U over the original TCM0806G-900-2P?

A: EXC-14CE900U provides three key advantages: (1) active product status ensures ongoing availability, (2) higher current rating (130mA) provides additional design margin, and (3) lower DC resistance (2.5 Ohm) reduces insertion loss. The operating temperature range is expanded to -40°C, supporting broader environmental applications.

Q: Are there height differences between these parts?

A: Yes. TCM0806G-900-2P and EXC-14CE900U have a maximum height of 0.018" (0.45mm), while MCZ0806AH900L2TA0G has a maximum height of 0.020" (0.50mm). For applications with tight vertical clearance constraints, this 0.002" (0.05mm) difference may be significant.

Q: What is the impact of the DC voltage rating difference?

A: TCM0806G-900-2P is rated for 10V DC, while both substitutes are rated for 5V DC. If the application circuit operates above 5V DC, the substitutes are not suitable. Verify the actual DC voltage stress on the component in the target application before selection.

Q: Are all three parts RoHS compliant?

A: TCM0806G-900-2P does not specify RoHS status. Both MCZ0806AH900L2TA0G and EXC-14CE900U are ROHS3 compliant, meeting current environmental regulations for new designs.