Equivalent & Substitute Parts for 2PD602ASL,235

Part Overview

The 2PD602ASL,235 is an NPN bipolar junction transistor manufactured by Nexperia USA Inc., designed for surface mount applications in the TO-236AB package. This automotive-grade component operates at maximum ratings of 50 V collector-emitter breakdown voltage and 500 mA collector current, with a maximum power dissipation of 250 mW. The device is qualified to AEC-Q101 automotive standards and maintains active product status with ROHS3 compliance.

Equivalent and substitute parts are identified based on matching or exceeding critical electrical parameters within the same package family (TO-236-3, SC-59, SOT-23-3), ensuring mechanical and thermal compatibility for direct board-level replacement.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	50	V
Current - Collector (Ic) (Max)	500	mA
Power - Max	250	mW
Frequency - Transition	180	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	170 @ 150mA, 10V	—
Vce Saturation (Max) @ Ib, Ic	600mV @ 30mA, 300mA	—
Current - Collector Cutoff (Max)	10	nA
Operating Temperature (TJ)	150	°C
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts are classified into three categories based on electrical parameter alignment with the 2PD602ASL,235:

Manufacturer Recommended Equivalent (2PD602ASL-QR): Identical electrical specifications and automotive qualification. Differs only in packaging designation suffix and inventory availability. Direct substitution without parameter deviation.

Parametric Equivalent (2PD602ASL,215): Identical electrical specifications, automotive grade, and AEC-Q101 qualification. Packaging and thermal characteristics match the main part. Interchangeable for all circuit applications.

Direct Manufacturer Substitutes (SBCX19LT1G, BC817 series variants): These parts share the same NPN transistor type, identical maximum collector current (500 mA), and compatible SOT-23-3 package. Substitution is valid where the following conditions are met:

Collector-emitter breakdown voltage of 45 V meets or exceeds circuit requirements (5 V margin below main part specification)
Maximum power dissipation of 300 mW accommodates thermal design (50 mW margin above main part)
Automotive grade and AEC-Q101 qualification maintained
Operating temperature range of −55°C to −65°C minimum and 150°C maximum
Surface mount package compatibility (TO-236-3, SC-59, SOT-23-3)

DC current gain (hFE) varies across substitute parts (100 to 250 @ 100mA, 1V) and must be evaluated against circuit bias network design. Transition frequency ranges from 100 MHz to 180 MHz; applications requiring 180 MHz performance must select parts with matching or higher frequency specification.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Ic (Max) mA	Vce(br) (Max) V	Power (Max) mW	hFE (Min) @ Ic, Vce	Frequency (MHz)	Vce Sat (Max) mV	Grade	AEC-Q101	Package
2PD602ASL,235	Nexperia USA Inc.	500	50	250	170 @ 150mA, 10V	180	600 @ 30mA, 300mA	Automotive	Yes	TO-236AB
2PD602ASL-QR	Nexperia USA Inc.	500	50	250	170 @ 150mA, 10V	180	600 @ 30mA, 300mA	Automotive	Yes	TO-236AB
2PD602ASL,215	Nexperia USA Inc.	500	50	250	170 @ 150mA, 10V	180	600 @ 30mA, 300mA	Automotive	Yes	TO-236AB
SBCX19LT1G	onsemi	500	45	300	100 @ 100mA, 1V	—	620 @ 50mA, 500mA	Automotive	Yes	SOT-23-3
BC817-16 RFG	Taiwan Semiconductor Corporation	500	45	300	100 @ 100mA, 1V	100	700 @ 50mA, 500mA	—	—	SOT-23
BC817-25 RFG	Taiwan Semiconductor Corporation	500	45	300	160 @ 100mA, 1V	100	700 @ 50mA, 500mA	—	—	SOT-23
BC817-25LT1G	onsemi	500	45	300	160 @ 100mA, 1V	100	700 @ 50mA, 500mA	—	—	SOT-23-3
BC817-40 RFG	Taiwan Semiconductor Corporation	500	45	300	250 @ 100mA, 1V	100	700 @ 50mA, 500mA	—	—	SOT-23
BC817-40LT1G	onsemi	500	45	300	250 @ 100mA, 1V	100	700 @ 50mA, 500mA	—	—	SOT-23-3
BC817-40Q-13-F	Diodes Incorporated	500	45	310	250 @ 100mA, 1V	100	700 @ 50mA, 500mA	Automotive	Yes	SOT-23-3
BC817-40Q-7-F	Diodes Incorporated	500	45	310	250 @ 100mA, 1V	100	700 @ 50mA, 500mA	Automotive	Yes	SOT-23-3

Engineering Selection Recommendations

For Direct Replacement in Automotive Applications:

Select 2PD602ASL-QR or 2PD602ASL,215 when inventory or supply chain constraints affect the primary part number 2PD602ASL,235. These parts maintain identical electrical specifications, automotive grade designation, and AEC-Q101 qualification. No circuit redesign or validation is required.

For Substitution with Reduced Voltage Margin:

SBCX19LT1G, BC817-40Q-13-F, and BC817-40Q-7-F are suitable substitutes where circuit design accommodates a 5 V reduction in collector-emitter breakdown voltage (45 V versus 50 V). These parts carry automotive grade and AEC-Q101 qualification, ensuring compliance with automotive reliability standards. The increased power dissipation rating (300 mW or 310 mW) provides thermal margin.

For Non-Automotive or Commercial Applications:

BC817-25LT1G and BC817-40LT1G (onsemi) provide compatible electrical performance with extended operating temperature range (−65°C to 150°C). These parts lack automotive grade designation and AEC-Q101 qualification; use is restricted to non-automotive circuits.

BC817-16 RFG and BC817-25 RFG (Taiwan Semiconductor Corporation) lack automotive qualification and are not suitable for automotive applications.

Transition Frequency Consideration:

The main part 2PD602ASL,235 specifies 180 MHz transition frequency. Substitute parts BC817 variants operate at 100 MHz. Applications requiring high-frequency switching performance above 100 MHz must retain the original part number or select alternatives with matching frequency specification.

Frequently Asked Questions (FAQ)

Q: Can 2PD602ASL-QR replace 2PD602ASL,235 without circuit modification?

A: Yes. The 2PD602ASL-QR is a manufacturer-recommended equivalent with identical electrical specifications, automotive grade, and AEC-Q101 qualification. Direct substitution is valid for all applications.

Q: What is the difference between 2PD602ASL,235 and 2PD602ASL,215?

A: Both parts are parametric equivalents with identical electrical characteristics, automotive grade, and AEC-Q101 qualification. The numeric suffix (235 versus 215) indicates different manufacturing date codes or tape reel configurations. Electrical performance and circuit compatibility are equivalent.

Q: Can BC817-40Q-7-F replace 2PD602ASL,235 in an automotive circuit?

A: BC817-40Q-7-F is a valid substitute where the circuit design accommodates a 5 V reduction in collector-emitter breakdown voltage (45 V versus 50 V). The part carries automotive grade and AEC-Q101 qualification. Verify that the circuit's maximum operating voltage does not exceed 45 V.

Q: Why do BC817 variants show lower transition frequency (100 MHz) compared to the main part (180 MHz)?

A: BC817 series transistors are designed for general-purpose switching applications with 100 MHz transition frequency. Applications requiring 180 MHz performance must use the original 2PD602ASL,235 or equivalent parts with matching frequency specification. Lower frequency does not affect DC switching applications.

Q: Are BC817-16 RFG and BC817-25 RFG suitable for automotive applications?

A: No. These parts lack automotive grade designation and AEC-Q101 qualification. Use is restricted to commercial and industrial applications. For automotive circuits, select parts with explicit automotive grade and AEC-Q101 certification.

Q: What is the significance of the hFE (DC current gain) variation across substitute parts?

A: DC current gain ranges from 100 to 250 across substitute parts. The main part specifies 170 @ 150mA, 10V. Substitute parts with different hFE values require verification of circuit bias network design to ensure proper operating point. Higher hFE values reduce base current requirements; lower values increase base current demand.

Q: Can BC817-25LT1G be used in automotive applications?

A: No. BC817-25LT1G lacks automotive grade and AEC-Q101 qualification. This part is suitable only for commercial and industrial applications. Automotive circuits must use parts with explicit automotive qualification.

Q: What packaging options are available for substitutes?

A: All substitute parts use compatible surface mount packages within the TO-236-3, SC-59, SOT-23-3 family. Mechanical footprint and thermal characteristics are equivalent. Verify PCB layout compatibility with the specific supplier device package designation (TO-236AB, SOT-23-3, or SOT-23).

Q: Is the increased power dissipation rating (300 mW or 310 mW) of substitute parts a concern?

A: No. Higher power dissipation ratings provide thermal margin and do not negatively affect circuit performance. The actual power dissipation is determined by circuit operating conditions, not the component rating.

Q: What is the Moisture Sensitivity Level (MSL) significance?

A: All listed parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special desiccant or humidity control requirements.

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