TCM0806G-650-2P Equivalent & Substitute Parts

Part Overview

The TCM0806G-650-2P is a 2-line common mode choke (CMC) manufactured by TDK Corporation, designed for signal line filtering in surface mount applications. This component operates at 65 Ohms impedance at 100 MHz with a maximum current rating of 100mA and DC resistance of 2.5 Ohm. The product is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and procurement.

Substiute Parts

TCM0806G-650-2P

TDK CorporationIn Stock: 1927TCM0806G-650-2P Datasheet

Current PartRFQ

MCZ0806AH900L2TA0G

TDK CorporationIn Stock: 10114MCZ0806AH900L2TA0G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TCM0806G-650-2P is determined by the following critical parameters:

• Mechanical Compatibility: Package type (0302/0806 Metric, 4 Lead), mounting type (Surface Mount), and physical dimensions (0.85mm x 0.65mm footprint)
• Electrical Specifications: Number of lines (2-line configuration), current rating (100mA maximum), and mounting compatibility on PCB layouts
• Functional Performance: Impedance characteristics and DC resistance values that maintain signal integrity within the application's frequency and current operating ranges

The substitute part MCZ0806AH900L2TA0G shares identical mechanical packaging and mounting characteristics with the original part, enabling direct PCB footprint compatibility. However, electrical parameters differ in impedance (90 Ohms vs. 65 Ohms) and DC resistance (4 Ohm vs. 2.5 Ohm), requiring circuit-level evaluation for suitability in specific applications.

Parameter Comparison

Engineering Selection Recommendations

Both the TCM0806G-650-2P and MCZ0806AH900L2TA0G are classified as obsolete products from TDK Corporation. Selection between these parts must account for the following factors:

Electrical Differences: The MCZ0806AH900L2TA0G exhibits higher impedance (90 Ohms vs. 65 Ohms) and increased DC resistance (4 Ohm vs. 2.5 Ohm). These differences directly impact signal attenuation and insertion loss characteristics. Applications requiring the original 65 Ohm impedance specification cannot use the 90 Ohm substitute without circuit redesign or performance degradation.

Voltage Rating: The MCZ0806AH900L2TA0G has a reduced DC voltage rating (5V vs. 10V). Circuits operating above 5V DC cannot employ this substitute.

Temperature Range: The MCZ0806AH900L2TA0G provides an extended lower operating temperature limit (-40°C vs. -25°C), offering broader environmental coverage for applications requiring low-temperature operation.

Compliance Status: Both parts are REACH Unaffected and carry EAR99 ECCN classification. The MCZ0806AH900L2TA0G is RoHS3 Compliant, providing additional regulatory alignment for new designs.

Physical Compatibility: Identical footprint and package type (0302/0806 Metric) enable direct PCB layout compatibility, though the MCZ0806AH900L2TA0G has a marginally higher maximum height (0.50mm vs. 0.45mm).

Frequently Asked Questions (FAQ)

Q: Can the MCZ0806AH900L2TA0G be used as a direct replacement for the TCM0806G-650-2P?

A: Direct PCB footprint replacement is possible due to identical package type and dimensions. However, electrical performance differs significantly. The 90 Ohm impedance and 4 Ohm DC resistance of the MCZ0806AH900L2TA0G will alter signal filtering characteristics compared to the original 65 Ohm, 2.5 Ohm specification. Circuit-level evaluation is required to determine functional compatibility.

Q: What are the key differences between these two parts?

A: The primary differences are impedance (65 Ohms vs. 90 Ohms), DC resistance (2.5 Ohm vs. 4 Ohm), DC voltage rating (10V vs. 5V), and operating temperature range (-25°C to 85°C vs. -40°C to 85°C). Both maintain identical 2-line configuration, 100mA current rating, and 0302/0806 Metric package specifications.

Q: Are there voltage limitations when substituting?

A: Yes. The MCZ0806AH900L2TA0G is rated for maximum 5V DC, compared to 10V for the TCM0806G-650-2P. Applications operating above 5V DC cannot use the MCZ0806AH900L2TA0G substitute.

Q: Do these parts have identical physical dimensions?

A: The footprint and length/width dimensions are identical (0.85mm x 0.65mm). Maximum height differs slightly: TCM0806G-650-2P is 0.45mm, while MCZ0806AH900L2TA0G is 0.50mm. Both are within typical PCB assembly clearance tolerances for 0302 packages.

Q: What compliance certifications apply to these parts?

A: Both parts are REACH Unaffected and classified as EAR99 under ECCN. The MCZ0806AH900L2TA0G additionally carries RoHS3 Compliance certification, making it suitable for applications with RoHS requirements.

Q: Why are both parts listed as obsolete?

A: Obsolete status indicates these components are no longer in active production by TDK Corporation. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed. For new designs, evaluation of current-generation common mode choke alternatives is recommended.