2SC565400L Equivalent & Substitute Parts

Part Overview

The 2SC565400L is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, designed for surface mount applications in the SMini3-G1 package. This device operates at a maximum collector current of 1 A with a collector-emitter breakdown voltage of 20 V and a maximum power dissipation of 150 mW. The transistor features a transition frequency of 180 MHz and is rated for operation up to 150°C junction temperature.

The 2SC565400L is classified as an obsolete product. Locating equivalent or substitute components is necessary for ongoing design support, maintenance, and production continuity when original inventory becomes unavailable or depleted.

Substiute Parts

2SC565400L

Panasonic Electronic ComponentsIn Stock: 10102SC565400L Datasheet

Current PartRFQ

MMST3904-TP

Micro Commercial CoIn Stock: 75916MMST3904-TP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC565400L is determined by compatibility across the following critical electrical and mechanical parameters:

Transistor Type: Both the main part and substitute must be NPN bipolar junction transistors to maintain circuit functionality.

Package Compatibility: The 2SC565400L uses the SC-70 / SOT-323 surface mount package. Substitute parts must use the same package designation to ensure mechanical and electrical compatibility with existing PCB layouts and solder reflow processes.

Electrical Ratings: Substitute parts must meet or exceed the electrical requirements of the original device. The maximum collector current (Ic), collector-emitter breakdown voltage (Vce), and power dissipation (Pmax) define the operational envelope. A substitute with higher ratings provides design margin and reduces risk of component failure under specified operating conditions.

Frequency Performance: The transition frequency (fT) of 180 MHz establishes the high-frequency performance threshold. Substitutes with equal or higher transition frequency maintain or improve signal handling capability.

Temperature Rating: The maximum junction temperature of 150°C defines the thermal operating range. Substitutes must support this temperature or higher to ensure reliability across the specified operating environment.

The MMST3904-TP meets these substitution criteria through package compatibility (SOT-323), NPN transistor type, and electrical ratings that exceed the original specification across all key parameters.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 2SC565400L is classified as obsolete, while the MMST3904-TP is active. The active status of the MMST3904-TP ensures ongoing availability, manufacturing support, and supply chain continuity for new production and field replacements.

Compliance and Certification: The MMST3904-TP carries RoHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. Both devices are classified under ECCN EAR99 and share the same HTSUS code (8541.21.0075), indicating equivalent trade classification.

Electrical Performance: The MMST3904-TP provides higher collector-emitter breakdown voltage (40 V versus 20 V) and higher transition frequency (300 MHz versus 180 MHz), delivering improved performance margins. However, the maximum collector current of the MMST3904-TP (200 mA) is lower than the 2SC565400L (1 A). Circuit designs operating at collector currents exceeding 200 mA cannot use the MMST3904-TP as a direct substitute.

Package Compatibility: Both devices use the SOT-323 package, ensuring mechanical and thermal compatibility with existing PCB designs and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MMST3904-TP directly replace the 2SC565400L in all applications?

A: The MMST3904-TP is suitable for applications where the collector current does not exceed 200 mA. Circuits requiring the full 1 A collector current capability of the 2SC565400L cannot use the MMST3904-TP. Verify circuit current requirements before substitution.

Q: Are the package dimensions identical between the 2SC565400L and MMST3904-TP?

A: Both devices use the SOT-323 package designation. PCB footprints and solder reflow profiles are compatible. No layout modifications are required for mechanical substitution.

Q: What is the significance of the higher breakdown voltage in the MMST3904-TP?

A: The MMST3904-TP operates at a maximum collector-emitter breakdown voltage of 40 V, compared to 20 V for the 2SC565400L. This higher rating provides additional design margin in circuits operating near the voltage limits of the original device, reducing the risk of voltage-related failures.

Q: Does the lower DC current gain of the MMST3904-TP affect circuit performance?

A: The MMST3904-TP has a minimum DC current gain (hFE) of 100 at 10 mA and 1 V, compared to 160 at 100 mA and 2 V for the 2SC565400L. Circuits designed with gain-dependent biasing may require recalculation of base resistor values to achieve the same operating point. Gain-independent biasing topologies are unaffected.

Q: Is the MMST3904-TP suitable for high-frequency applications?

A: The MMST3904-TP has a transition frequency of 300 MHz, exceeding the 180 MHz specification of the 2SC565400L. This higher frequency capability supports applications requiring improved high-frequency performance and signal fidelity.

Q: What are the moisture sensitivity considerations for these devices?

A: Both the 2SC565400L and MMST3904-TP carry a Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture-related handling restrictions. Standard surface mount assembly processes are applicable without special moisture control measures.

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

A: The MMST3904-TP is RoHS3 compliant and REACH unaffected, meeting current environmental regulations. The 2SC565400L, being an obsolete Panasonic device, may not carry current compliance certifications. New designs should specify the MMST3904-TP to ensure regulatory compliance.