2SC4655JCL Equivalent & Substitute Parts

Part Overview

The 2SC4655JCL is an RF transistor NPN manufactured by Panasonic Electronic Components, rated for 20V collector-emitter breakdown voltage with a transition frequency of 230MHz and maximum power dissipation of 125mW. This device is packaged in the SC-89 (SOT-490) surface mount configuration designated SSMini3-F1.

The 2SC4655JCL is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this RF transistor topology.

Substiute Parts

2SC4655JCL

Panasonic Electronic ComponentsIn Stock: 47092SC4655JCL Datasheet

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2SC4725TLP

Rohm SemiconductorIn Stock: 46582SC4725TLP Datasheet

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2SC5226A-5-TL-E

onsemiIn Stock: 41452SC5226A-5-TL-E Datasheet

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BFP450H6327XTSA1

Infineon TechnologiesIn Stock: 9166BFP450H6327XTSA1 Datasheet

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BFP620H7764XTSA1

Infineon TechnologiesIn Stock: 14017BFP620H7764XTSA1 Datasheet

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BFP720H6327XTSA1

Infineon TechnologiesIn Stock: 3160BFP720H6327XTSA1 Datasheet

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MAPR-002729-170M00

MACOM Technology SolutionsIn Stock: 857MAPR-002729-170M00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC4655JCL is determined by the following critical parameters:

Primary Substitution Criteria:

• Transistor Type: NPN topology
• Voltage - Collector Emitter Breakdown (Max): Equal to or greater than 20V
• Frequency - Transition: Equal to or greater than 230MHz
• Power - Max: Equal to or greater than 125mW
• Current - Collector (Ic) (Max): Equal to or greater than 30mA
• Mounting Type: Surface Mount
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories based on application scope:

Category A - Direct RF Application Substitutes (Voltage ≥ 20V, Frequency ≥ 230MHz): The 2SC4725TLP meets or exceeds all primary electrical parameters while maintaining surface mount compatibility. This part is classified as active and provides enhanced performance characteristics.

Category B - Extended Performance Substitutes (Voltage < 20V or Specialized RF Applications): The 2SC5226A-5-TL-E, BFP450H6327XTSA1, BFP620H7764XTSA1, and BFP720H6327XTSA1 are active RF transistors with superior frequency performance and power handling. These parts operate at reduced voltage ratings or specialized frequency bands and are suitable for applications where the 2SC4655JCL voltage specification can be accommodated within circuit design constraints.

Category C - High-Power Substitutes (Chassis Mount, Specialized Applications): The MAPR-002729-170M00 is a chassis mount RF transistor with significantly elevated power and current ratings. This part is suitable only for applications requiring high-power RF amplification and is not a direct form-fit-function replacement.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Voltage and Frequency Compatibility Required):

The 2SC4725TLP is the primary substitute for the 2SC4655JCL. Both devices maintain 20V collector-emitter breakdown voltage specification and exceed the 230MHz transition frequency requirement. The 2SC4725TLP is classified as active with ROHS3 compliance and REACH unaffected status, ensuring long-term supply chain availability and regulatory compliance. The transition from SC-89 (SOT-490) to SC-75 (SOT-416) packaging requires PCB layout modification but maintains surface mount assembly compatibility.

For Applications Permitting Reduced Voltage Operation:

The 2SC5226A-5-TL-E, BFP450H6327XTSA1, BFP620H7764XTSA1, and BFP720H6327XTSA1 are active RF transistors suitable for applications where collector-emitter voltage can be reduced below 20V. These devices provide significantly enhanced frequency performance and are ROHS3 compliant with REACH unaffected status. Package transitions to SC-70 (SOT-323) or SC-82A (SOT-343) configurations require PCB redesign.

For High-Power RF Applications:

The MAPR-002729-170M00 is suitable only for applications requiring power dissipation exceeding 125mW and collector current exceeding 30mA. This chassis mount device is not a form-fit-function replacement and requires complete circuit redesign. ROHS3 compliance is confirmed.

Compliance and Regulatory Status:

All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity classification. The 2SC4725TLP, 2SC5226A-5-TL-E, and all Infineon devices (BFP450H6327XTSA1, BFP620H7764XTSA1, BFP720H6327XTSA1) are ROHS3 compliant with REACH unaffected status. The MAPR-002729-170M00 is ROHS3 compliant. All parts are classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the 2SC4725TLP be used as a direct replacement for the 2SC4655JCL without circuit modification?

A: The 2SC4725TLP meets all primary electrical specifications (20V breakdown voltage, 1.5GHz transition frequency exceeding 230MHz requirement, 150mW power exceeding 125mW requirement, 50mA collector current exceeding 30mA requirement). However, the package change from SC-89 (SOT-490) to SC-75 (SOT-416) requires PCB layout modification. Electrical performance is compatible without circuit redesign.

Q: What is the primary limitation of the BFP620H7764XTSA1 as a substitute?

A: The BFP620H7764XTSA1 has a maximum collector-emitter breakdown voltage of 2.8V, which is significantly lower than the 2SC4655JCL specification of 20V. This device is suitable only for applications where circuit design permits operation at reduced voltage levels. The package is SC-82A (SOT-343), requiring PCB redesign.

Q: Is the MAPR-002729-170M00 suitable for direct replacement in existing PCB designs?

A: No. The MAPR-002729-170M00 is a chassis mount device, whereas the 2SC4655JCL is surface mount. The MAPR-002729-170M00 is intended for high-power RF applications requiring 170W power dissipation and 27A collector current. Complete circuit and mechanical redesign is required.

Q: What are the key differences between the 2SC4725TLP and the Infineon BFP series devices?

A: The 2SC4725TLP maintains the 20V collector-emitter breakdown voltage of the original 2SC4655JCL and operates at 1.5GHz transition frequency. The Infineon BFP series devices (BFP450H6327XTSA1, BFP620H7764XTSA1, BFP720H6327XTSA1) operate at significantly higher frequencies (24GHz, 65GHz, and 45GHz respectively) but have reduced voltage ratings (5V, 2.8V, and 4.7V respectively). Selection depends on application frequency requirements and available supply voltage.

Q: Are all substitute parts RoHS compliant?

A: The 2SC4725TLP, 2SC5226A-5-TL-E, BFP450H6327XTSA1, BFP620H7764XTSA1, BFP720H6327XTSA1, and MAPR-002729-170M00 are all ROHS3 compliant. The original 2SC4655JCL does not specify RoHS status due to its obsolete classification.

Q: What is the operating temperature range difference between the 2SC4655JCL and substitute parts?

A: The 2SC4655JCL operates to a maximum junction temperature of 125°C. The 2SC4725TLP, 2SC5226A-5-TL-E, and all Infineon devices operate to 150°C. The MAPR-002729-170M00 operates to 200°C. Higher operating temperature ratings provide additional thermal margin in high-power applications.

Q: Can multiple substitute parts be used interchangeably in the same application?

A: No. Substitute part selection must be based on specific application requirements for collector-emitter voltage, transition frequency, power dissipation, and collector current. The 2SC4725TLP is the only direct electrical equivalent. Other devices require application-specific evaluation and circuit modification.