2SC24060SL Equivalent & Substitute Parts

Part Overview

The 2SC24060SL is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, designed for small-signal switching and amplification applications. This device operates at a maximum collector voltage of 55 V with a collector current rating of 50 mA and a transition frequency of 200 MHz. The part is housed in a Surface Mount Mini3-G1 package (TO-236-3/SC-59/SOT-23-3 footprint) with a maximum power dissipation of 200 mW.

The 2SC24060SL is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements. Substitute parts must maintain electrical compatibility within the specified parameter ranges while accommodating modern active product alternatives.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector-Emitter Breakdown Voltage (Max)	55	V
Collector Current (Max)	50	mA
Vce Saturation (Max)	600	mV @ 10mA, 100mA
DC Current Gain (hFE Min)	260	@ 2mA, 5V
Power Dissipation (Max)	200	mW
Transition Frequency	200	MHz
Operating Temperature (Max)	150	°C
Package Type	TO-236-3 / SC-59 / SOT-23-3	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the 2SC24060SL are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Transistor Type: NPN (required)
Package/Case: TO-236-3, SC-59, or SOT-23-3 (required for PCB compatibility)
Collector-Emitter Breakdown Voltage: Must equal or exceed 55 V
Collector Current Rating: Must equal or exceed 50 mA
Power Dissipation: Must equal or exceed 200 mW
Operating Temperature Range: Must support 150°C maximum junction temperature
Mounting Type: Surface Mount (required)

Secondary Compatibility Parameters:

DC Current Gain (hFE): Minimum 260 @ 2mA, 5V preferred; lower values acceptable if circuit design accommodates
Transition Frequency: 200 MHz or higher preferred for frequency-dependent applications
Vce Saturation: Lower values indicate improved switching performance

Substitute parts are grouped into two categories:

Category A: Direct Electrical Equivalents (50 mA Collector Current Class) Parts 2PD601ARL,215, 2PD601ART,235, and 2PD601ASL,215 operate at 50 V breakdown voltage with 100 mA collector current rating. These parts exceed the 2SC24060SL specifications and are suitable for direct substitution in applications where the 50 mA collector current requirement is not exceeded.

Category B: Higher Current Capability (100–500 mA Collector Current Class) Parts 2PD601BRL,215, 2PD601BSL,215, 2PD602AQL,215, 2PD602ARL,215, and 2PD602ASL,215 provide increased collector current ratings (100–500 mA) and higher transition frequencies (140–250 MHz). These parts are suitable for applications requiring higher current handling or improved frequency response while maintaining the same package footprint.

Category C: Alternative Package Consideration Part BC846AW-7-F uses a different package (SOT-323) and is included for reference only; PCB layout modification is required for implementation.

Parameter Comparison

Part Number	Manufacturer	Vce(BR) Max (V)	Ic Max (mA)	Vce Sat Max (mV)	hFE Min @ Ic, Vce	Power Max (mW)	fT (MHz)	Package	Status
2SC24060SL	Panasonic	55	50	600 @ 10mA, 100mA	260 @ 2mA, 5V	200	200	TO-236-3	Obsolete
2PD601ARL,215	Nexperia USA Inc.	50	100	250 @ 10mA, 100mA	210 @ 2mA, 10V	250	100	TO-236-3	Active
2PD601ART,235	Nexperia USA Inc.	50	100	250 @ 10mA, 100mA	210 @ 2mA, 10V	250	100	TO-236-3	Active
2PD601ASL,215	Nexperia USA Inc.	50	100	250 @ 10mA, 100mA	290 @ 2mA, 10V	250	100	TO-236-3	Active
2PD601BRL,215	Nexperia USA Inc.	50	200	250 @ 10mA, 100mA	210 @ 2mA, 10V	250	250	TO-236-3	Active
2PD601BSL,215	NXP Semiconductors	50	200	250 @ 10mA, 100mA	290 @ 2mA, 10V	250	250	TO-236-3	Active
2PD602AQL,215	Nexperia USA Inc.	50	500	600 @ 30mA, 300mA	85 @ 150mA, 10V	250	140	TO-236-3	Active
2PD602ARL,215	Nexperia USA Inc.	50	500	600 @ 30mA, 300mA	120 @ 150mA, 10V	250	160	TO-236-3	Active
2PD602ASL,215	Nexperia USA Inc.	50	500	600 @ 30mA, 300mA	170 @ 150mA, 10V	250	180	TO-236-3	Active
BC817-40LT1G	onsemi	45	500	700 @ 50mA, 500mA	250 @ 100mA, 1V	300	100	TO-236-3	Active
BC846AW-7-F	Diodes Incorporated	65	100	600 @ 5mA, 100mA	110 @ 2mA, 5V	200	300	SOT-323	Active

Engineering Selection Recommendations

For Direct Substitution (Same Electrical Class):

The 2PD601 series (parts 2PD601ARL,215, 2PD601ART,235, and 2PD601ASL,215) provides the closest electrical match to the 2SC24060SL. All three variants are manufactured by Nexperia USA Inc. and hold Active product status with AEC-Q101 automotive qualification. These parts maintain the TO-236-3 package footprint, identical mounting type, and equivalent operating temperature range. The 2PD601 series offers improved availability (30,400–3,710 units in stock) compared to the obsolete 2SC24060SL (1,029 units). All 2PD601 variants are ROHS3 compliant and REACH unaffected.

The 2PD601ARL,215 and 2PD601ART,235 are electrically identical with 100 mA collector current rating and 100 MHz transition frequency. The 2PD601ASL,215 variant provides identical electrical specifications with higher DC current gain (290 vs. 210 @ 2mA, 10V), offering improved gain margin in amplification circuits.

For Enhanced Performance (Higher Current or Frequency):

The 2PD601B series (2PD601BRL,215 and 2PD601BSL,215) doubles the collector current rating to 200 mA and increases transition frequency to 250 MHz while maintaining the 50 V breakdown voltage and TO-236-3 package. These parts are suitable for applications requiring higher current handling or improved switching speed. Both variants are Active products with AEC-Q101 qualification and ROHS3 compliance.

The 2PD602 series (2PD602AQL,215, 2PD602ARL,215, and 2PD602ASL,215) provides 500 mA collector current rating with transition frequencies of 140–180 MHz. These parts are suitable for higher-power switching applications while maintaining the same package footprint. All variants are Active products with automotive qualification.

For Voltage Margin Consideration:

The BC817-40LT1G (onsemi) provides a lower breakdown voltage of 45 V, which is below the 2SC24060SL specification of 55 V. This part is suitable only for applications where the actual operating voltage does not exceed 45 V. The BC817-40LT1G offers higher power dissipation (300 mW) and 500 mA collector current capability.

For Package Compatibility Verification:

The BC846AW-7-F uses a SOT-323 package, which differs from the TO-236-3 footprint of the 2SC24060SL. Implementation of this part requires PCB layout modification and is not recommended for direct substitution without design review.

Frequently Asked Questions (FAQ)

Q: Can the 2PD601 series directly replace the 2SC24060SL without circuit modification?

A: Yes. The 2PD601 series (2PD601ARL,215, 2PD601ART,235, and 2PD601ASL,215) maintains identical package footprint (TO-236-3), operating temperature range (150°C maximum), and equivalent electrical characteristics. The 50 V breakdown voltage specification is lower than the 2SC24060SL (55 V), but this is acceptable for applications where the actual operating voltage does not exceed 50 V. The 100 mA collector current rating exceeds the 2SC24060SL requirement of 50 mA, providing design margin.

Q: What is the difference between 2PD601ARL,215, 2PD601ART,235, and 2PD601ASL,215?

A: All three parts are electrically identical with 100 mA collector current and 100 MHz transition frequency. The differences are in packaging format (Tape & Reel variants) and DC current gain specification. The 2PD601ASL,215 specifies a minimum hFE of 290 @ 2mA, 10V, compared to 210 for the other variants. This higher gain specification provides improved margin in amplification circuits. Part selection depends on packaging requirements and gain margin needs.

Q: When should the 2PD601B series be used instead of the 2PD601A series?

A: The 2PD601B series (2PD601BRL,215 and 2PD601BSL,215) should be selected when the application requires collector current exceeding 100 mA or transition frequency exceeding 100 MHz. The 2PD601B variants provide 200 mA collector current and 250 MHz transition frequency. Both series maintain the same 50 V breakdown voltage and TO-236-3 package footprint.

Q: Are the 2PD602 series parts suitable for the 2SC24060SL application?

A: The 2PD602 series (2PD602AQL,215, 2PD602ARL,215, and 2PD602ASL,215) are suitable for applications where the collector current requirement does not exceed 500 mA and the transition frequency requirement does not exceed 180 MHz. These parts provide higher current capability than the 2SC24060SL (50 mA) and maintain the same package footprint. The 50 V breakdown voltage is lower than the 2SC24060SL specification; verify that actual operating voltage does not exceed 50 V.

Q: What is the significance of the Vce saturation parameter in substitution?

A: Vce saturation indicates the voltage drop across the transistor when operating in saturation mode (fully conducting). Lower Vce saturation values indicate reduced power dissipation and improved switching efficiency. The 2PD601 series specifies 250 mV saturation compared to 600 mV for the 2SC24060SL, indicating improved performance in switching applications. The 2PD602 series specifies 600 mV saturation, matching the 2SC24060SL specification.

Q: Can the BC817-40LT1G replace the 2SC24060SL?

A: The BC817-40LT1G is not recommended as a direct replacement. Although it maintains the TO-236-3 package footprint and provides higher current capability (500 mA), the breakdown voltage specification of 45 V is below the 2SC24060SL requirement of 55 V. This part is suitable only for applications where the actual operating voltage does not exceed 45 V. Verify circuit voltage requirements before implementation.

Q: Why is the BC846AW-7-F not recommended for direct substitution?

A: The BC846AW-7-F uses a SOT-323 package, which has a different pin configuration and footprint compared to the TO-236-3 package of the 2SC24060SL. Direct substitution on the PCB is not possible without layout modification. This part is included for reference only for applications where package change is acceptable.

Q: What compliance certifications should be verified for automotive applications?

A: For automotive applications, verify AEC-Q101 qualification status. The 2PD601 series, 2PD601B series, and 2PD602 series all hold AEC-Q101 automotive qualification. The 2SC24060SL does not specify automotive qualification. ROHS3 compliance and REACH unaffected status should also be verified for regulatory requirements.

Q: How does transition frequency affect substitution suitability?

A: Transition frequency (fT) indicates the maximum frequency at which the transistor maintains useful gain. Higher transition frequency provides better performance in high-frequency switching and amplification applications. The 2SC24060SL specifies 200 MHz. The 2PD601A series provides 100 MHz (lower), while the 2PD601B series provides 250 MHz (higher). For applications operating below 100 MHz, the 2PD601A series is suitable. For applications requiring 200 MHz or higher, the 2PD601B series or 2PD602 series are recommended.

Q: What is the impact of DC current gain (hFE) variation on circuit design?

A: DC current gain variation affects base current requirements for a given collector current. The 2SC24060SL specifies minimum hFE of 260 @ 2mA, 5V. The 2PD601 series specifies 210–290 depending on variant. Lower hFE values require higher base current for the same collector current. Circuit designs with fixed base resistor values should accommodate the minimum hFE specification of the substitute part. Higher hFE values provide improved gain margin and reduced base current requirements.

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