2SD13280SL Equivalent & Substitute Parts

Part Overview

The 2SD13280SL is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, rated for 20 V collector-emitter breakdown voltage and 500 mA maximum collector current. This device is packaged in a Surface Mount Mini3-G1 case (TO-236-3/SC-59/SOT-23-3 footprint) and is designed for general-purpose switching and amplification applications requiring 200 mW power dissipation and 200 MHz transition frequency operation.

The 2SD13280SL is classified as an obsolete product. Equivalent and substitute parts are necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this transistor specification.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	20	V
Current - Collector (Ic) (Max)	500	mA
Vce Saturation (Max) @ Ib, Ic	400 mV @ 20 mA, 500 mA	—
Current - Collector Cutoff (Max)	100	nA
DC Current Gain (hFE) (Min) @ Ic, Vce	300 @ 500 mA, 2 V	—
Power - Max	200	mW
Frequency - Transition	200	MHz
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2SD13280SL is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Transistor Type: NPN (required match)
Voltage - Collector Emitter Breakdown (Max): 20 V minimum
Current - Collector (Ic) (Max): 500 mA minimum
Vce Saturation (Max) @ Ib, Ic: 400 mV or lower @ 20 mA, 500 mA
Current - Collector Cutoff (Max): 100 nA or lower
DC Current Gain (hFE) (Min) @ Ic, Vce: 300 or higher @ 500 mA, 2 V
Power - Max: 200 mW minimum
Frequency - Transition: 200 MHz minimum
Operating Temperature (TJ): 150°C maximum

Mechanical Compatibility Criteria:

Mounting Type: Surface Mount (required match)
Package / Case: TO-236-3, SC-59, or SOT-23-3 (required match)

Substitute parts must meet or exceed all electrical parameters while maintaining identical mechanical compatibility. Parts that exceed specified ratings in voltage, current, power dissipation, or frequency are acceptable substitutes provided they maintain the same package footprint and pin configuration.

Parameter Comparison

Parameter	2SD13280SL	2SD2114KT146V	2SD2114KT146W	BC818-40LT1G	MMS8050-H-TP	MMS8050-L-TP	PBSS4120T,215
Transistor Type	NPN	NPN	NPN	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	20 V	20 V	20 V	25 V	25 V	25 V	20 V
Current - Collector (Ic) (Max)	500 mA	500 mA	500 mA	500 mA	500 mA	500 mA	1 A
Vce Saturation (Max) @ Ib, Ic	400 mV @ 20 mA, 500 mA	400 mV @ 20 mA, 500 mA	400 mV @ 20 mA, 500 mA	700 mV @ 50 mA, 500 mA	600 mV @ 50 mA, 500 mA	600 mV @ 50 mA, 500 mA	250 mV @ 50 mA, 1 A
Current - Collector Cutoff (Max)	100 nA	500 nA	500 nA	100 nA	100 nA	100 nA	100 nA
DC Current Gain (hFE) (Min) @ Ic, Vce	300 @ 500 mA, 2 V	820 @ 10 mA, 3 V	1200 @ 10 mA, 3 V	250 @ 100 mA, 1 V	120 @ 50 mA, 1 V	120 @ 50 mA, 1 V	300 @ 500 mA, 2 V
Power - Max	200 mW	200 mW	200 mW	225 mW	300 mW	300 mW	480 mW
Frequency - Transition	200 MHz	350 MHz	350 MHz	100 MHz	150 MHz	150 MHz	100 MHz
Operating Temperature (TJ)	150°C	150°C	150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	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
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Primary Substitutes (Rohm Semiconductor 2SD2114 Series):

The 2SD2114KT146V and 2SD2114KT146W are direct electrical equivalents to the 2SD13280SL. Both parts maintain identical voltage and current ratings (20 V, 500 mA), matching saturation voltage specifications, and provide superior transition frequency performance (350 MHz versus 200 MHz). Both devices are classified as Active products with ROHS3 compliance and REACH Unaffected status, ensuring long-term availability and regulatory compliance. The 2SD2114KT146W variant offers higher inventory availability (234,300 units) compared to the 2SD2114KT146V (45,200 units).

Secondary Substitutes (Voltage-Rated Alternatives):

The BC818-40LT1G (onsemi) and MMS8050-H-TP/MMS8050-L-TP (Micro Commercial Co) provide higher voltage ratings (25 V) while maintaining 500 mA current capacity. These parts are suitable for applications where additional voltage margin is beneficial. Both manufacturers' products are Active status with ROHS3 compliance and REACH Unaffected status. The MMS8050 series offers increased power dissipation capability (300 mW versus 200 mW), providing thermal margin for demanding applications.

Higher Current Alternative:

The PBSS4120T,215 (Nexperia USA Inc.) is rated for 1 A maximum collector current with 20 V voltage rating, matching the original part's voltage specification. This device features automotive-grade qualification (AEC-Q100) and is suitable for applications requiring higher current capacity. Power dissipation is rated at 480 mW, providing significant thermal headroom. This part is Active status with ROHS3 compliance and REACH Unaffected status.

Compliance and Availability:

All substitute parts maintain Surface Mount packaging in TO-236-3/SC-59/SOT-23-3 footprints, ensuring direct mechanical compatibility. All listed substitutes are Active products with current manufacturing status, supporting long-term design continuity. Moisture Sensitivity Level 1 (Unlimited) is maintained across all alternatives, eliminating special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the 2SD2114KT146V and 2SD2114KT146W be used interchangeably with the 2SD13280SL?

A: Yes. Both Rohm Semiconductor parts maintain identical electrical specifications for voltage (20 V), current (500 mA), saturation voltage (400 mV @ 20 mA, 500 mA), and power dissipation (200 mW). Both are packaged in TO-236-3/SOT-23-3 footprints with identical pin configurations. The higher transition frequency (350 MHz) of these parts provides performance margin over the original 200 MHz specification.

Q: What is the difference between BC818-40LT1G and the MMS8050 series?

A: Both parts provide 25 V voltage rating and 500 mA current capacity in identical TO-236-3/SOT-23-3 packages. The BC818-40LT1G is manufactured by onsemi with 100 MHz transition frequency and 225 mW power rating. The MMS8050 series (Micro Commercial Co) offers 150 MHz transition frequency and 300 mW power rating. The MMS8050 series provides higher frequency and power dissipation capability, suitable for more demanding applications.

Q: Is the PBSS4120T,215 a suitable substitute for the 2SD13280SL?

A: The PBSS4120T,215 maintains the 20 V voltage rating and provides 1 A maximum collector current (double the original 500 mA specification). This part is suitable for applications where higher current capacity is required. The device is packaged in TO-236-3/SOT-23-3 footprint with identical pin configuration. Automotive-grade qualification (AEC-Q100) makes this part suitable for automotive applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements. The original 2SD13280SL does not specify RoHS status, but all active substitutes maintain full compliance.

Q: What is the significance of Moisture Sensitivity Level 1 (Unlimited)?

A: Moisture Sensitivity Level 1 (Unlimited) indicates that the component does not require special moisture-control handling during storage, transportation, or assembly. All listed parts, including the original 2SD13280SL and all substitutes, maintain this classification, eliminating special packaging or baking requirements.

Q: Can I use a substitute part with higher power rating in my design?

A: Yes. Parts with higher power ratings (MMS8050 series at 300 mW, PBSS4120T,215 at 480 mW) are suitable substitutes for applications originally designed for 200 mW devices. Higher power ratings provide thermal margin and reduce junction temperature during operation. Verify that your circuit design does not depend on specific power dissipation characteristics.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Cut Tape (CT) and Digi-Reel packaging are supplied on continuous tape in smaller quantities suitable for manual assembly or small production runs. Tape & Reel (TR) packaging provides components on continuous tape in larger quantities optimized for automated assembly equipment. Both packaging formats use identical TO-236-3/SOT-23-3 component footprints and pin configurations. Selection depends on production volume and assembly equipment compatibility.

Q: Why is the 2SD13280SL classified as obsolete?

A: The 2SD13280SL is classified as obsolete due to discontinuation by the original manufacturer (Panasonic Electronic Components). Active substitute parts from Rohm Semiconductor, onsemi, Micro Commercial Co, and Nexperia USA Inc. provide equivalent or superior electrical performance with current manufacturing support and long-term availability assurance.

Q: Are there any frequency limitations when substituting with lower-frequency parts?

A: The BC818-40LT1G and PBSS4120T,215 offer 100 MHz transition frequency, lower than the original 200 MHz specification. These parts are suitable for applications where the circuit operating frequency does not exceed the substitute part's transition frequency rating. For high-frequency applications requiring 200 MHz or higher performance, use 2SD2114KT146V, 2SD2114KT146W (350 MHz), or MMS8050 series (150 MHz).

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