MCH6123-TL-E Equivalent & Substitute Parts

Part Overview

The MCH6123-TL-E is a PNP bipolar junction transistor manufactured by onsemi, rated for 50V collector-emitter breakdown voltage and 3A maximum collector current. This surface mount device is designed for general-purpose switching and amplification applications in a 6-MCPH package configuration. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

MCH6123-TL-E

onsemiIn Stock: 93195MCH6123-TL-E Datasheet

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MCH6103-TL-E

onsemiIn Stock: 35384MCH6103-TL-E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MCH6123-TL-E is determined by the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Transistor polarity (PNP)
• Collector-emitter breakdown voltage rating (50V minimum)
• Maximum collector current capability
• DC current gain (hFE) characteristics
• Power dissipation rating (1W)
• Transition frequency performance

Mechanical Compatibility Criteria:

• Surface mount mounting type
• 6-MCPH package configuration
• 6-SMD flat lead format

The MCH6103-TL-E qualifies as a substitute based on matching all mechanical parameters and maintaining electrical compatibility within the defined operating envelope. While the MCH6103-TL-E has a reduced maximum collector current rating (1A versus 3A), it maintains the same voltage rating, power dissipation, current gain characteristics, and package footprint, making it suitable for applications not requiring the full 3A current capability of the original part.

Parameter Comparison

Engineering Selection Recommendations

The MCH6103-TL-E is the primary substitute for the obsolete MCH6123-TL-E. Selection of this alternative is supported by the following factors:

Product Status: The MCH6103-TL-E maintains active product status with onsemi, ensuring continued availability and manufacturing support. The MCH6123-TL-E is classified as obsolete, making the MCH6103-TL-E the appropriate choice for new designs and production continuity.

Regulatory Compliance: Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring equivalent regulatory standing. The MCH6103-TL-E carries RoHS3 compliance certification, providing additional environmental compliance assurance for applications subject to RoHS requirements.

Electrical Equivalence: The MCH6103-TL-E maintains the same collector-emitter breakdown voltage (50V), power dissipation (1W), DC current gain (200 @ 100mA, 2V), and operating temperature range (150°C). The transition frequency is slightly higher (420MHz versus 390MHz), providing equivalent or improved performance in switching applications.

Current Rating Consideration: The MCH6103-TL-E maximum collector current is rated at 1A, compared to 3A for the MCH6123-TL-E. This substitution is appropriate for applications where the circuit design does not require collector currents exceeding 1A. For applications requiring the full 3A capability, alternative parts outside this substitute group must be evaluated.

Mechanical Compatibility: Both parts utilize identical surface mount packaging (6-MCPH, 6-SMD flat leads), ensuring direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the MCH6103-TL-E directly replace the MCH6123-TL-E in all applications?

A: The MCH6103-TL-E is mechanically and electrically compatible with the MCH6123-TL-E for applications where the maximum collector current does not exceed 1A. If your circuit design requires collector currents between 1A and 3A, the MCH6103-TL-E is not suitable. Review your circuit's maximum collector current requirement before substitution.

Q: What is the difference in transition frequency between these parts?

A: The MCH6123-TL-E has a transition frequency of 390MHz, while the MCH6103-TL-E is rated at 420MHz. The higher frequency rating of the MCH6103-TL-E provides equivalent or improved performance for switching and high-frequency amplification applications.

Q: Are the package footprints identical?

A: Yes. Both the MCH6123-TL-E and MCH6103-TL-E use the 6-MCPH package with 6-SMD flat leads. No PCB layout modifications are required for substitution.

Q: What is the significance of the RoHS3 compliance on the MCH6103-TL-E?

A: The MCH6103-TL-E carries RoHS3 compliance certification, indicating compliance with the Restriction of Hazardous Substances Directive. This certification is relevant for applications and markets subject to RoHS requirements. The MCH6123-TL-E does not list RoHS status in the provided specifications.

Q: How do the saturation voltage characteristics compare?

A: The MCH6123-TL-E has a Vce saturation of 650mV at 100mA base current and 2A collector current. The MCH6103-TL-E has a Vce saturation of 430mV at 10mA base current and 500mA collector current. These measurements are taken at different operating points due to the different current ratings of each device.

Q: What is the moisture sensitivity level for both parts?

A: Both the MCH6123-TL-E and MCH6103-TL-E have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Are there any regulatory or compliance differences between these parts?

A: Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99). The MCH6103-TL-E additionally carries RoHS3 compliance certification. No other regulatory differences are specified in the provided data.