2SC3325-Y,LF Equivalent & Substitute Parts

Part Overview

The 2SC3325-Y,LF is an NPN bipolar junction transistor manufactured by Toshiba Semiconductor and Storage, designed for small-signal switching and amplification applications. This surface-mount device operates at 50 V collector-emitter breakdown voltage with a maximum collector current of 500 mA and 200 mW power dissipation. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter ranges for this product category.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Collector-Emitter Breakdown Voltage (Max)	50	V
Collector Current (Max)	500	mA
Power Dissipation (Max)	200	mW
Transition Frequency	300	MHz
DC Current Gain (hFE Min)	120	@ 100mA, 1V
Vce Saturation (Max)	250	mV @ 10mA, 100mA
Mounting Type	Surface Mount	—
Package	TO-236-3, SC-59, SOT-23-3	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the 2SC3325-Y,LF is determined by matching the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

Transistor type: NPN configuration
Collector-emitter breakdown voltage: 50 V minimum
Collector current rating: 500 mA minimum
Power dissipation: 200 mW minimum
Package compatibility: TO-236-3, SC-59, or SOT-23-3 surface-mount packages
RoHS compliance: ROHS3 Compliant
Moisture sensitivity: MSL 1 (Unlimited)

Direct Equivalent Classification: Parts meeting all primary criteria with identical or superior electrical specifications are classified as direct equivalents. The SMSD602-RT1G from onsemi matches the 50 V, 500 mA, and 200 mW specifications with compatible SC-59 packaging.

Similar Part Classification: Parts from the Nexperia 2PD601 and 2PD602 series meet the 50 V breakdown voltage and surface-mount package requirements but vary in collector current ratings (100 mA to 500 mA) and transition frequency characteristics. These parts are suitable for applications where the specific current and frequency requirements of the 2SC3325-Y,LF can be accommodated within the substitute part's operating envelope.

Voltage and Current Compatibility: The BC817-16 RFG from Taiwan Semiconductor Corporation operates at 45 V breakdown voltage, which is below the 50 V specification of the main part. This part is included as a similar option for applications where the lower voltage rating is acceptable.

Parameter Comparison

Parameter	2SC3325-Y,LF (Toshiba)	SMSD602-RT1G (onsemi)	2PD601ARL,215 (Nexperia)	2PD601BSL,215 (NXP)	2PD602ARL,215 (Nexperia)	2PD602ASL,215 (Nexperia)	BC817-16 RFG (TSC)
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN	NPN
Vce Breakdown (Max)	50 V	50 V	50 V	50 V	50 V	50 V	45 V
Ic (Max)	500 mA	500 mA	100 mA	200 mA	500 mA	500 mA	500 mA
Power (Max)	200 mW	200 mW	250 mW	250 mW	250 mW	250 mW	300 mW
Frequency - Transition	300 MHz	—	100 MHz	250 MHz	160 MHz	180 MHz	100 MHz
hFE (Min)	120 @ 100mA, 1V	120 @ 150mA, 10V	210 @ 2mA, 10V	290 @ 2mA, 10V	120 @ 150mA, 10V	170 @ 150mA, 10V	100 @ 100mA, 1V
Vce Saturation (Max)	250 mV @ 10mA, 100mA	600 mV @ 30mA, 300mA	250 mV @ 10mA, 100mA	250 mV @ 10mA, 100mA	600 mV @ 30mA, 300mA	600 mV @ 30mA, 300mA	700 mV @ 50mA, 500mA
Package	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	REACH Unaffected	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Operating Temperature	150°C (TJ)	—	150°C (TJ)	150°C (TJ)	150°C (TJ)	150°C (TJ)	-55°C ~ 150°C (TJ)
Grade	—	—	Automotive	Automotive	Automotive	Automotive	—

Engineering Selection Recommendations

Direct Equivalent Selection: The SMSD602-RT1G from onsemi is the primary direct equivalent for the 2SC3325-Y,LF. Both parts share identical collector-emitter breakdown voltage (50 V), collector current rating (500 mA), and power dissipation (200 mW). Both are ROHS3 compliant with MSL 1 rating and compatible TO-236-3/SC-59/SOT-23-3 packaging. The SMSD602-RT1G is suitable for direct replacement in applications requiring these specifications.

Automotive-Grade Alternatives: The Nexperia 2PD602 series (2PD602ARL,215 and 2PD602ASL,215) provides automotive-grade equivalents with AEC-Q101 qualification. These parts maintain the 50 V breakdown voltage and 500 mA collector current rating with enhanced reliability for automotive applications. The 2PD602ASL,215 offers the highest transition frequency (180 MHz) within this series.

Current-Limited Applications: For applications requiring lower collector current ratings, the Nexperia 2PD601 series provides 100 mA to 200 mA options with 50 V breakdown voltage and automotive qualification. The 2PD601BSL,215 supports 200 mA at 250 MHz transition frequency with automotive-grade certification.

Lower Voltage Tolerance: The BC817-16 RFG from Taiwan Semiconductor Corporation operates at 45 V breakdown voltage, which is 5 V below the 2SC3325-Y,LF specification. This part is suitable only for applications where the reduced voltage margin is acceptable and does not compromise circuit performance.

Compliance and Certification: All recommended substitute parts maintain ROHS3 compliance and MSL 1 moisture sensitivity rating. Automotive-grade parts (2PD601 and 2PD602 series) include AEC-Q101 qualification for enhanced reliability in demanding environments.

Frequently Asked Questions (FAQ)

Q: Can the SMSD602-RT1G directly replace the 2SC3325-Y,LF? A: Yes. The SMSD602-RT1G matches the critical electrical specifications: 50 V breakdown voltage, 500 mA collector current, and 200 mW power dissipation. Both parts use compatible TO-236-3/SC-59/SOT-23-3 surface-mount packages and maintain ROHS3 compliance with MSL 1 rating.

Q: What is the difference between the 2PD601 and 2PD602 series? A: The primary difference is collector current rating. The 2PD601 series supports 100 mA to 200 mA maximum collector current, while the 2PD602 series supports 500 mA. Both series maintain 50 V breakdown voltage and automotive AEC-Q101 qualification. Select based on the maximum collector current required by the application.

Q: Why does the SMSD602-RT1G not list a transition frequency? A: The transition frequency specification is not provided in the available technical data for the SMSD602-RT1G. The 2SC3325-Y,LF specifies 300 MHz. For applications where transition frequency is critical, the 2PD602ASL,215 (180 MHz) or 2PD602ARL,215 (160 MHz) provide documented frequency specifications.

Q: Is the BC817-16 RFG suitable as a substitute? A: The BC817-16 RFG operates at 45 V breakdown voltage, which is below the 2SC3325-Y,LF specification of 50 V. This part is suitable only for applications where the reduced voltage rating does not compromise circuit performance or safety margins.

Q: What is the significance of automotive-grade qualification? A: Automotive-grade parts (2PD601 and 2PD602 series) carry AEC-Q101 qualification, indicating compliance with automotive reliability and quality standards. These parts are suitable for automotive and other high-reliability applications requiring enhanced qualification.

Q: Are all substitute parts available in the same package? A: Yes. All substitute parts listed are available in TO-236-3, SC-59, or SOT-23-3 surface-mount packages, ensuring mechanical compatibility with the 2SC3325-Y,LF footprint.

Q: What does MSL 1 (Unlimited) mean? A: MSL 1 (Moisture Sensitivity Level 1) with unlimited rating indicates the part has no moisture sensitivity restrictions. These parts can be stored and handled without special moisture control measures, simplifying supply chain and manufacturing processes.

Q: How do I select between multiple substitute options? A: Selection depends on application requirements. For direct replacement, use SMSD602-RT1G. For automotive applications, use 2PD602ARL,215 or 2PD602ASL,215. For lower current applications, use 2PD601 series. Verify that the selected part's collector current, transition frequency, and voltage rating meet or exceed application requirements.

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