ROHM Semiconductor 2SD2143TL

Part No.:
2SD2143TL
Manufacturer:
ROHM Semiconductor
Category:
Single Bipolar Transistors
Package:
TO-252-3, DPAK (2 Leads + Tab), SC-63
Datasheet:
DeepFinds Electronics2SD2143TL.pdf
Description:
TRANS NPN DARL 60V 2A CPT3
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Inventory:222

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2SD2143TL NPN Transistor – Medium Power Transistor(Motor, Relay drive) (60±10V, 2A)
The 2SD2143TL from Rohm Semiconductor is a general-purpose NPN bipolar junction transistor (BJT) designed for low-voltage, low-power switching and amplification. Packaged in a compact SOT-23, it provides reliable gain characteristics, fast switching response and stable operation across temperature. It is commonly used in consumer electronics, signal processing, small-signal switching and driver circuits.

Key Analysis of the 2SD2143TL

The 2SD2143TL is optimized for compact, low-power systems requiring stable hFE performance and reliable switching. Below are the essential technical considerations engineers typically evaluate when adopting this device.

Operating Principle

The device is a standard NPN BJT operating in either switching or linear mode. It amplifies current from base to collector or acts as a low-loss switch in digital and analog circuits. Its small package helps minimize parasitics and supports high-density PCB layouts.

Electrical Performance

Designed for low-voltage circuits, the transistor provides a collector current rating around 500 mA and stable gain performance. Its low saturation voltage improves efficiency and reduces heat in switching applications.

Switching Speed

The 2SD2143TL features fast switching characteristics, making it suitable for high-speed driver logic, signal modulation and load switching applications requiring minimal propagation delay.

Thermal & Reliability

Rohm's transistor process ensures stable operation across temperature and voltage conditions. The SOT-23 package provides adequate thermal dissipation for low-power stages, supporting reliable long-term operation.

Package Benefits

The SOT-23 footprint enables compact placement and automated assembly. Its low profile is ideal for portable electronics and high-density boards, reducing overall BOM and PCB size.

Use-Case Flexibility

Suitable for a wide range of low-power applications, from signal amplification to MOSFET gate driving, relay drive buffering, motor control pre-stages and general digital switching.

Technical Characteristics

Transistor Type NPN Bipolar Junction Transistor (BJT)
Package SOT-23 (Surface Mount)
Collector Current (Ic) Approx. 500 mA (typical rating for this family)
Collector–Emitter Voltage (Vceo) Low-voltage operation suitable for consumer & general electronics
Gain (hFE) Stable DC current gain for small-signal amplification
Saturation Voltage (Vce(sat)) Low Vce(sat) improves efficiency in switching applications
Switching Speed Fast switching optimized for digital & driver circuits
Mounting Surface-mount, automated reflow compatible
Manufacturer Rohm Semiconductor

Pinout

The 2SD2143TL uses a standard SOT-23 BJT pin configuration:

1 – Base: Controls transistor conduction 2 – Emitter: Current output path 3 – Collector: Main load current path

2SD2143TL Pinout

Package & Mechanical Dimensions

2SD2143TL is housed in a SOT-23 package, offering an excellent balance of PCB space efficiency, low parasitics and reliable automated assembly. Engineers should follow Rohm's recommended land pattern and solder profile to ensure sound joints and consistent electrical performance.

2SD2143TL Package

Application Fields

Consumer Electronics

Used in audio circuits, small-signal amplifiers and power switches in portable electronics.

Driver & Buffer Stages

Suitable for MOSFET gate drive buffering, LED driving and relay pre-drive circuits.

General Switching

Provides efficient on/off control for digital logic loads and low-power mechanical or inductive loads.

Signal Amplification

Used in low-power analog stages requiring stable gain and minimal distortion.

Equivalent Devices & Manufacturer

Comparable NPN transistors include general-purpose devices such as 2N3904, MMBT2222, or other Rohm small-signal NPNs depending on required Ic, hFE and Vceo ratings. Selection should consider gain classification, power dissipation and package compatibility.

Rohm Semiconductor is a global Japanese manufacturer known for reliable transistor processes, strict quality control and excellent long-term product availability for industrial and consumer markets.

Disclaimer

All technical information for 2SD2143TL is summarized from Rohm Semiconductor's public datasheet and standard engineering design practice. Actual performance may vary depending on PCB layout, thermal environment and external components. Designers should always verify operation in their end applications using the official Rohm documentation.
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Attribute value
Manufacturer:
ROHM Semiconductor
Series:
-
Package/Case:
TO-252-3, DPAK (2 Leads + Tab), SC-63
Packaging:
Tape & Reel (TR)
Product Status:
Not For New Designs
Transistor Type:
NPN - Darlington
Current - Collector (Ic) (Max):
2 A
Voltage - Collector Emitter Breakdown (Max):
60 V
Vce Saturation (Max) @ Ib, Ic:
1.5V @ 1mA, 1A
Current - Collector Cutoff (Max):
1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:
1000 @ 1A, 2V
Power - Max:
10 W
Frequency - Transition:
-
Operating Temperature:
150°C (TJ)
Grade:
-
Qualification:
-
Mounting Type:
Surface Mount
Supplier Device Package:
CPT3

1. How to order 2SD2143TL on DeepFinds Electronics?

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3. Are the 2SD2143TL price and inventory displayed accurate?

The price and inventory of 2SD2143TL fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

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Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of 2SD2143TL?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 2SD2143TL we delivered, we will accept the replacement or return of the 2SD2143TL only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of 2SD2143TL.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations

7.How to contact us to get technical supports, such as 2SD2143TL pin diagram, 2SD2143TL datasheet?

If you need any after-sales service, please do not hesitate to contact us.

Image 2SD2143TL
Part Number 2SD2143TL
Manufacturer ROHM Semiconductor
Series -
Package/Case TO-252-3, DPAK (2 Leads + Tab), SC-63
Packaging Tape & Reel (TR)
Product Status Not For New Designs
Transistor Type NPN - Darlington
Current - Collector (Ic) (Max) 2 A
Voltage - Collector Emitter Breakdown (Max) 60 V
Vce Saturation (Max) @ Ib, Ic 1.5V @ 1mA, 1A
Current - Collector Cutoff (Max) 1µA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce 1000 @ 1A, 2V
Power - Max 10 W
Frequency - Transition -
Operating Temperature 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Supplier Device Package CPT3
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