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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

onsemi 2SD1816S-TL-E

Name: 2SD1816S-TL-E
Brand: onsemi
SKU: 2SD1816S-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SD1816S-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: 2SD1816S-TL-E.pdf

Description:: TRANS NPN 100V 4A TP-FA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2SD1816S-TL-E from onsemi is an NPN bipolar junction transistor rated for −100 V V_CEO, −4 A I_C, with low V_CE(sat) of −400 mV at I_C = −2 A / I_B = −0.2 A, f_T = 180 MHz, and packaged in Pb-free DPAK (TP-FA). It serves as a high-current switching device in DC-DC converters and relay drivers.

For engineers reviewing the 2SD1816S-TL-E datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance at 2 A, h_FE linearity across 0.5–3 A, fast switching (t_on = 100 ns, t_f = 50 ns), and DPAK thermal capability (P_C = 20 W at T_C = 25°C).

Technical Context

This NPN transistor operates in linear and saturated switching modes, with h_FE specified at two current points (140–400 at I_C = −0.5 A; 40 min at I_C = −3 A), supporting stable gain control in amplification and predictable saturation in hard-switching circuits. Its Cob = 40 pF and f_T = 180 MHz enable use in high-speed inverters up to several hundred kHz.

The device features dual-collector construction (pins 2 and 4 both connected to collector), enabling enhanced current handling and thermal distribution in the DPAK package. V_(BR)CBO = −120 V and V_(BR)CEO = −100 V define its blocking capability in inductive load switching applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−100 V - Maximum safe collector-emitter voltage under open-base conditions; defines off-state blocking for 48 V and 100 V bus systems
I_C	−4 A continuous - Sustained current-handling capacity; supports 3 A load switching with margin
V_CE(sat)	−400 mV max at I_C = −2 A / I_B = −0.2 A - Low conduction loss enabling <0.8 W dissipation at 2 A
f_T	180 MHz - Enables reliable operation in >100 kHz switching converters and fast digital logic interfaces
h_FE	140–400 at I_C = −0.5 A - Supports stable bias design in amplifier stages and base-driven switches
t_f	50 ns - Fast fall time reduces switching transition losses in PWM-controlled power stages
P_C @ T_C = 25°C	20 W - High thermal power rating enabled by DPAK copper tab; requires heatsink for sustained >5 W operation

Pinout & Package

DPAK (TP-FA) package with exposed collector pad (pins 2 and 4), standardized for surface-mount power applications and compatible with IPC-7351B footprint (7.0 × 6.2 mm body, 2.3 mm height).

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input for current amplification; requires ≥0.2 A drive for full saturation at 2 A collector current
2	Collector	Main high-current output node; electrically tied to pin 4; mounted to PCB copper for thermal conduction
3	Emitter	Reference terminal for current flow; connects to ground or low-side return path in switch configurations
4	Collector	Second collector connection; parallel path to pin 2, improving current sharing and thermal spreading in DPAK

Key Features

Feature	Design Value
Low V_CE(sat)	−400 mV max ensures <0.8 W conduction loss at 2 A, reducing thermal stress in compact converters
High f_T	180 MHz enables clean square-wave response in 100–500 kHz switching nodes without phase lag
Good h_FE linearity	h_FE remains ≥40 from 0.5 A to 3 A, allowing predictable base drive scaling across load range
Dual-collector DPAK	Pins 2 and 4 both connect to collector, doubling bond-wire current capacity and lowering thermal resistance
Pb-free / Halogen-free option	S-TL-E suffix denotes RoHS-compliant, lead-free termination and halogen-free molding compound

Applications

Relay Drivers	DC-DC Converters
Use Scenario: Driving 12 V/24 V electromagnetic relays with coil currents up to 3 A in industrial PLC I/O modules. IC Role / Device Role / Timing Role: NPN switch operating in saturation mode, turning relay coil on/off via microcontroller GPIO. Use Value: Low V_CE(sat) minimizes coil voltage drop and self-heating; fast t_f = 50 ns prevents contact bounce during deactivation.	Use Scenario: High-side or low-side switching in 100 kHz synchronous buck converters delivering up to 3 A output. IC Role / Device Role / Timing Role: Power switch in non-isolated DC-DC stage, controlled by PWM signal with complementary gate driver. Use Value: 180 MHz f_T and 100 ns t_on support precise duty-cycle control; 20 W P_C allows operation with minimal heatsinking.
Motor Control (BLDC)	Inverter Stages
Use Scenario: Low-voltage (≤48 V) brushless DC motor half-bridge leg in fan or pump drivers. IC Role / Device Role / Timing Role: Low-side switch in three-phase inverter, commutated at ≤20 kHz with dead-time control. Use Value: Dual-collector DPAK improves thermal reliability under repetitive surge currents; h_FE stability ensures consistent turn-on timing.	Use Scenario: High-speed inverter output stage in UPS or solar microinverter auxiliary power supplies. IC Role / Device Role / Timing Role: Fast-switching NPN in push-pull or totem-pole configuration driving transformer primary. Use Value: 50 ns t_f and 40 pF Cob reduce switching losses and EMI generation at 200+ kHz operation.

Relay Drivers

DC-DC Converters

Use Scenario: Driving 12 V/24 V electromagnetic relays with coil currents up to 3 A in industrial PLC I/O modules.

IC Role / Device Role / Timing Role: NPN switch operating in saturation mode, turning relay coil on/off via microcontroller GPIO.

Use Value: Low V_CE(sat) minimizes coil voltage drop and self-heating; fast t_f = 50 ns prevents contact bounce during deactivation.

Use Scenario: High-side or low-side switching in 100 kHz synchronous buck converters delivering up to 3 A output.

IC Role / Device Role / Timing Role: Power switch in non-isolated DC-DC stage, controlled by PWM signal with complementary gate driver.

Use Value: 180 MHz f_T and 100 ns t_on support precise duty-cycle control; 20 W P_C allows operation with minimal heatsinking.

Motor Control (BLDC)

Inverter Stages

Use Scenario: Low-voltage (≤48 V) brushless DC motor half-bridge leg in fan or pump drivers.

IC Role / Device Role / Timing Role: Low-side switch in three-phase inverter, commutated at ≤20 kHz with dead-time control.

Use Value: Dual-collector DPAK improves thermal reliability under repetitive surge currents; h_FE stability ensures consistent turn-on timing.

Use Scenario: High-speed inverter output stage in UPS or solar microinverter auxiliary power supplies.

IC Role / Device Role / Timing Role: Fast-switching NPN in push-pull or totem-pole configuration driving transformer primary.

Use Value: 50 ns t_f and 40 pF Cob reduce switching losses and EMI generation at 200+ kHz operation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN high-current switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MJD127G	V_CEO = −100 V, I_C = −4 A, but V_CE(sat) = −650 mV @ 2 A - 62% higher conduction loss	Less suitable for thermally constrained converter designs; acceptable in relay drivers with margin	Choose when legacy footprint compatibility with TO-252 is required; verify thermal derating at >1.5 A
SSD10N60B	MOSFET (not BJT); R_DS(on) = 0.3 Ω, V_DS = 600 V - higher voltage rating but slower effective switching due to gate charge	Better for high-voltage AC-DC; less optimal for low-V_CE precision saturation control	Select only if system requires >100 V blocking or zero gate-drive current; not a direct functional replacement

Compared with MJD127G and SSD10N60B, the 2SD1816S-TL-E delivers superior V_CE(sat) and faster switching for 48–100 V, 2–3 A switching applications, while maintaining BJT-compatible base-drive simplicity and predictable h_FE-based bias design.

Availability

2SD1816S-TL-E is available at Aetrix Electronics and suitable for relay drivers, DC-DC converters, and BLDC motor control requiring stable component supply, RoHS compliance, and DPAK thermal performance.

Supply support for 2SD1816S-TL-E includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

onsemi (formerly ON Semiconductor) is a global semiconductor manufacturer specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, and cloud infrastructure markets.

The 2SD1816S-TL-E belongs to onsemi's general-purpose high-current BJT product line, designed specifically for cost-sensitive, thermally demanding switching applications where low V_CE(sat) and fast turn-off are critical.

FAQ

What is the maximum continuous collector current rating for the 2SD1816S-TL-E?

The 2SD1816S-TL-E is rated for −4 A continuous collector current (I_C) at T_C = 25°C. Derating is required above 25°C case temperature per the datasheet thermal curve; at T_C = 100°C, maximum I_C drops to approximately −2.5 A. This rating assumes proper PCB copper area and thermal vias under the DPAK collector pad.

Does the 2SD1816S-TL-E have a built-in base-emitter resistor?

No, the 2SD1816S-TL-E is a standard discrete NPN bipolar transistor without any integrated base-emitter resistors. External base drive circuitry - including current-limiting resistors and optional Baker clamp components - must be provided by the designer to ensure proper saturation and prevent secondary breakdown.

What is the pin configuration of the 2SD1816S-TL-E in the DPAK package?

The 2SD1816S-TL-E uses a 4-pin DPAK (TP-FA) package with pin 1 = Base, pins 2 and 4 = Collector (internally connected), and pin 3 = Emitter. Pins 2 and 4 are electrically identical and intended for parallel mounting to enhance thermal and current-handling capability.

Is the 2SD1816S-TL-E suitable for linear amplifier applications?

Yes, the 2SD1816S-TL-E supports linear operation with verified h_FE linearity (140–400 at I_C = −0.5 A; ≥40 at I_C = −3 A) and low distortion characteristics. However, its 20 W power dissipation limit at T_C = 25°C requires careful thermal design; it is best suited for medium-power Class AB audio or signal amplification stages with heatsinking.

What does the "-TL-E" suffix indicate in 2SD1816S-TL-E?

The "-TL-E" suffix denotes tape-and-reel packaging (TL) with Pb-free (E) termination. Specifically, 2SD1816S-TL-E is supplied in 700-unit reels, compliant with RoHS Directive 2011/65/EU and J-STD-609A Class 1 moisture sensitivity, and uses lead-free solderable terminations per JEDEC J-STD-020.

2SD1816S-TL-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: NPN

Current - Collector (Ic) (Max):: 4 A

Voltage - Collector Emitter Breakdown (Max):: 100 V

Vce Saturation (Max) @ Ib, Ic:: 400mV @ 200mA, 2A

Current - Collector Cutoff (Max):: 1µA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 140 @ 500mA, 5V

Power - Max:: 1 W

Frequency - Transition:: 180MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TP-FA

2SD1816S-TL-E FAQ

1.How can I place an order for 2SD1816S-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SD1816S-TL-E on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2SD1816S-TL-E reliable?

The price and inventory of 2SD1816S-TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SD1816S-TL-E is usually 5 days.

3.What payment methods are accepted for 2SD1816S-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SD1816S-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SD1816S-TL-E?

2SD1816S-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SD1816S-TL-E order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2SD1816S-TL-E?

For technical support, including 2SD1816S-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SD1816S-TL-E requirements.

6.How does Aetrix verify that 2SD1816S-TL-E is sourced from the original manufacturer or authorized distributors?

All 2SD1816S-TL-E products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2SD1816S-TL-E meets industry standards.

7.What is the process for return or replacement of 2SD1816S-TL-E?

All 2SD1816S-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SD1816S-TL-E, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2SD1816S-TL-E part is unused and in its original packaging.

Return procedure for 2SD1816S-TL-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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