2SC4617 Equivalent & Substitute Parts

Part Overview

The 2SC4617 is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. The device features a 50 V collector-emitter breakdown voltage, 100 mA maximum collector current, and 180 MHz transition frequency in a surface mount SC-75 (SOT-416) package. The 2SC4617 is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. Active alternatives with matching or superior electrical characteristics are available from multiple manufacturers.

Substiute Parts

2SC4617

onsemiIn Stock: 1803172SC4617 Datasheet

Current PartRFQ

S2SC4617G

onsemiIn Stock: 9211S2SC4617G Datasheet

Parametric EquivalentRFQ

2PC4617QM,315

Nexperia USA Inc.In Stock: 6801562PC4617QM,315 Datasheet

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2SC4617-R-TP

Micro Commercial CoIn Stock: 8152SC4617-R-TP Datasheet

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BC847BT TR PBFREE

Central Semiconductor CorpIn Stock: 9818BC847BT TR PBFREE Datasheet

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CMUT5088E TR PBFREE

Central Semiconductor CorpIn Stock: 6421CMUT5088E TR PBFREE Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2SC4617 is determined by the following critical parameters: transistor type (NPN), maximum collector-emitter breakdown voltage (50 V minimum), maximum collector current (100 mA minimum), DC current gain (hFE minimum 120 @ 1mA, 6V), and transition frequency (180 MHz minimum for direct equivalents). Package compatibility and mounting type are secondary considerations that may vary depending on circuit board layout constraints.

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts with identical or superior electrical specifications and active product status, suitable for direct replacement with minimal or no circuit modification.

Similar Parts: Parts with comparable core electrical characteristics but variations in one or more parameters (package type, power rating, frequency response, or voltage rating), requiring engineering evaluation for specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

S2SC4617G (onsemi): This part is the direct parametric equivalent to the 2SC4617, offering identical electrical specifications including 100 mA collector current, 50 V breakdown voltage, 180 MHz transition frequency, and 125 mW power rating. The S2SC4617G maintains the same SC-75 (SOT-416) package footprint and is ROHS3 compliant with active product status. This part is the primary recommendation for direct replacement in existing designs.

2PC4617QM,315 (Nexperia USA Inc.): This part meets the core electrical requirements with 100 mA collector current and 50 V breakdown voltage. The transition frequency is reduced to 100 MHz, and power dissipation capability is increased to 430 mW. The package differs (SOT-883 versus SOT-416), requiring PCB layout modification. This part carries AEC-Q100 automotive qualification and ROHS3 compliance, suitable for applications where higher power handling is beneficial and frequency response is not critical.

2SC4617-R-TP (Micro Commercial Co): This part exceeds the original specifications with 150 mA collector current and 150 mW power rating while maintaining 50 V breakdown voltage and 180 MHz transition frequency. The SOT-523 package differs from the original, requiring circuit board redesign. Operating temperature range is specified as −55°C to 150°C. This part is suitable for designs requiring enhanced current handling capacity.

BC847BT TR PBFREE (Central Semiconductor Corp): This part provides 100 mA collector current and 100 MHz transition frequency with a reduced 45 V breakdown voltage. The DC current gain is higher (200 @ 2mA, 5V) compared to the original specification. The SOT-523 package requires PCB modification. This part is suitable for applications where the 45 V rating is acceptable and higher current gain is advantageous.

CMUT5088E TR PBFREE (Central Semiconductor Corp): This part matches the 50 V breakdown voltage and 100 mA collector current specifications. The transition frequency is 100 MHz, and power dissipation is 350 mW. The DC current gain is significantly higher (430 @ 100µA, 5V). The SOT-523 package requires PCB layout changes. This part is suitable for low-frequency applications requiring higher current gain and power handling.

Frequently Asked Questions (FAQ)

Q: Can S2SC4617G be used as a direct replacement for 2SC4617 without circuit modification?

A: Yes. The S2SC4617G is a parametric equivalent with identical electrical specifications and the same SC-75 (SOT-416) package footprint. No circuit modification is required. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What is the primary reason to substitute the 2SC4617?

A: The 2SC4617 is classified as obsolete. Substitution is necessary to ensure continued availability for production and design support. The S2SC4617G provides identical performance with active product status.

Q: Can 2PC4617QM,315 be used in place of 2SC4617?

A: The 2PC4617QM,315 meets the core electrical requirements (100 mA, 50 V, 120 hFE minimum) but differs in three aspects: transition frequency is reduced to 100 MHz (versus 180 MHz), power dissipation is increased to 430 mW (versus 125 mW), and the package is SOT-883 (versus SOT-416). PCB layout modification is required. This substitution is valid for applications where 100 MHz frequency response is sufficient.

Q: What are the package differences among substitute parts?

A: The original 2SC4617 uses SC-75 (SOT-416) package. Substitute parts use alternative packages: S2SC4617G maintains SC-75 (SOT-416); 2PC4617QM,315 uses SC-101 (SOT-883); 2SC4617-R-TP, BC847BT TR PBFREE, and CMUT5088E TR PBFREE use SOT-523. Package changes require PCB footprint redesign.

Q: Is BC847BT TR PBFREE a suitable substitute?

A: The BC847BT TR PBFREE has a reduced breakdown voltage of 45 V (versus 50 V) and lower transition frequency of 100 MHz (versus 180 MHz). It is suitable only for applications where these reduced specifications are acceptable. The higher DC current gain (200 @ 2mA, 5V) may be advantageous in some designs.

Q: Which substitute part has the highest power dissipation capability?

A: The 2PC4617QM,315 has the highest power dissipation rating at 430 mW, compared to 125 mW for the original 2SC4617. This part is suitable for applications requiring enhanced thermal performance.

Q: Are all substitute parts RoHS compliant?

A: S2SC4617G, 2PC4617QM,315, BC847BT TR PBFREE, and CMUT5088E TR PBFREE are all ROHS3 compliant. The 2SC4617-R-TP RoHS status is not specified in the provided data.

Q: What is the difference between S2SC4617G and 2SC4617-R-TP?

A: S2SC4617G maintains the original SC-75 (SOT-416) package and 125 mW power rating with identical electrical specifications. The 2SC4617-R-TP uses a different SOT-523 package, offers higher collector current (150 mA), and increased power rating (150 mW). S2SC4617G is the preferred choice for direct replacement; 2SC4617-R-TP is suitable when enhanced current capacity is required.

Q: Can CMUT5088E TR PBFREE be used in high-frequency applications?

A: The CMUT5088E TR PBFREE has a transition frequency of 100 MHz, which is lower than the original 2SC4617 (180 MHz). This part is not suitable for applications requiring 180 MHz or higher frequency response. It is suitable for low-frequency switching and amplification applications.