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

onsemi 2SB1215S-H

Name: 2SB1215S-H
Brand: onsemi
SKU: 2SB1215S-H
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SB1215S-H

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

Package:: TO-251-3 Short Leads, IPAK, TO-251AA

Datasheet:: 2SB1215S-H.pdf

Description:: TRANS PNP 100V 3A TP

Quantity:: RFQ Add To RFQ list

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Inventory:9,498

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Product details

Overview

2SB1215S-H from onsemi is a PNP bipolar junction transistor rated for –100 V V_CEO, –3 A I_C, and low V_CE(sat) of –400 mV at –1.5 A/–0.15 A, housed in TP (TO-251) package with 4-pin configuration. It serves as a high-current switching device in relay drivers and DC-DC converters.

For engineers reviewing the 2SB1215S-H datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, JEDEC SC-64 package mapping, switching timing data (t_on = 100 ns, t_f = 50 ns), hFE classification (Rank S: 140–280 at –0.5 A), and halogen-free compliance per ordering code.

Technical Context

This PNP transistor uses epitaxial planar construction to achieve high f_T (180 MHz typ) and excellent hFE linearity across collector current range. Its low saturation voltage enables efficient operation in high-duty-cycle switching topologies where power loss minimization is critical.

The device operates within a junction temperature range of –55°C to +150°C and supports pulsed collector current up to –6 A. Its TP package provides thermal resistance R_θJC suitable for surface-mount applications requiring 20 W dissipation at T_C = 25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	–100 V - Maximum allowable collector-emitter voltage before breakdown under open-base condition
I_C	–3 A - Continuous DC collector current rating defining safe linear and switching conduction limits
V_CE(sat)	–400 mV max at I_C = –1.5 A, I_B = –0.15 A - Low saturation voltage reduces conduction losses in power switches
f_T	180 MHz typical at V_CE = –10 V, I_C = –0.5 A - Enables stable amplification or switching up to high-frequency control signals
t_on/t_f	100 ns / 50 ns - Fast turn-on and fall times support >5 MHz switching in hard-switched topologies
hFE Rank	S (140–280) - Guaranteed DC current gain range at –0.5 A, enabling predictable base drive sizing
Pb & Halogen Free	Yes - Complies with RoHS Directive 2011/65/EU and JEDEC JS709B halogen-free requirements

Pinout & Package

2SB1215S-H is supplied in TP package (JEDEC TO-251, JEITA SC-64), a 4-pin single-ended leadframe surface-mount variant with two collector terminals for enhanced current handling and thermal performance.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal; requires –0.15 A base current to saturate at –1.5 A collector load
2 & 4	Collector	Dual collector pins electrically connected internally; reduce current density and improve thermal path to PCB
3	Emiter	Power return path; connects to system ground or negative rail in high-side switch configurations

Key Features

Feature	Design Value
Low V_CE(sat)	–400 mV max ensures <0.6 W conduction loss at –1.5 A, critical for thermally constrained PCB layouts
High f_T	180 MHz typical supports stable operation in PWM controllers and high-speed logic interface circuits
Fast switching	100 ns t_on and 50 ns t_f enable efficient operation in 1–5 MHz DC-DC converter designs
Rank-S hFE	140–280 at –0.5 A allows precise base resistor selection without overdesign or excessive drive power
TP package	TO-251 outline with dual collector leads improves current derating margin and thermal transfer to copper pour

Applications

Relay Driver Circuit	DC-DC Converter Switch
Use Scenario: Driving 12 V/500 mA electromagnetic relay coils in industrial PLC output modules. IC Role / Device Role / Timing Role: High-current PNP switch sinking relay coil current during active state. Use Value: Low V_CE(sat) minimizes heat generation in compact enclosures; dual collector pins handle peak inrush currents reliably.	Use Scenario: Upper switch in non-synchronous buck converter operating at 2 MHz switching frequency. IC Role / Device Role / Timing Role: Main power switch controlling energy transfer from input to output inductor. Use Value: 180 MHz f_T and 50 ns fall time ensure clean turn-off with minimal shoot-through risk in high-frequency operation.
Inverter Output Stage	High-Current Linear Regulator Pass Element
Use Scenario: Push-pull output stage in 24 V automotive body-control inverter supplying 3 A peak to solenoid loads. IC Role / Device Role / Timing Role: High-side PNP switch delivering controlled current pulses to inductive actuator loads. Use Value: –6 A pulse rating and 150°C T_j rating sustain repeated 100 ms on-times without thermal shutdown.	Use Scenario: Pass transistor in adjustable linear regulator delivering 2.5 A at 5 V from 12 V input in test equipment. IC Role / Device Role / Timing Role: Series pass element dissipating up to 17.5 W under worst-case dropout conditions. Use Value: 20 W P_C at T_C = 25°C and low V_CE(sat) reduce heatsink requirements versus standard TO-220 alternatives.

Relay Driver Circuit

DC-DC Converter Switch

Use Scenario: Driving 12 V/500 mA electromagnetic relay coils in industrial PLC output modules.

IC Role / Device Role / Timing Role: High-current PNP switch sinking relay coil current during active state.

Use Value: Low V_CE(sat) minimizes heat generation in compact enclosures; dual collector pins handle peak inrush currents reliably.

Use Scenario: Upper switch in non-synchronous buck converter operating at 2 MHz switching frequency.

IC Role / Device Role / Timing Role: Main power switch controlling energy transfer from input to output inductor.

Use Value: 180 MHz f_T and 50 ns fall time ensure clean turn-off with minimal shoot-through risk in high-frequency operation.

Inverter Output Stage

High-Current Linear Regulator Pass Element

Use Scenario: Push-pull output stage in 24 V automotive body-control inverter supplying 3 A peak to solenoid loads.

IC Role / Device Role / Timing Role: High-side PNP switch delivering controlled current pulses to inductive actuator loads.

Use Value: –6 A pulse rating and 150°C T_j rating sustain repeated 100 ms on-times without thermal shutdown.

Use Scenario: Pass transistor in adjustable linear regulator delivering 2.5 A at 5 V from 12 V input in test equipment.

IC Role / Device Role / Timing Role: Series pass element dissipating up to 17.5 W under worst-case dropout conditions.

Use Value: 20 W P_C at T_C = 25°C and low V_CE(sat) reduce heatsink requirements versus standard TO-220 alternatives.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SB1215T-H	Same TP package, higher hFE rank (T: 200–400 at –0.5 A), identical voltage/current ratings	Better suited for low-base-drive applications where gain consistency at higher I_C matters	Select 2SB1215T-H when base drive current is limited or hFE stability above 1 A is required
MJD122G	TO-252 (DPAK) package, –100 V V_CEO, –3 A I_C, but V_CE(sat) = –600 mV min at –2 A, lower f_T (100 MHz)	Less efficient in high-frequency or low-loss applications; better thermal pad solderability than TP	Choose MJD122G only if DPAK footprint compatibility or PCB assembly process favors SC-63 over SC-64

Compared with 2SB1215T-H and MJD122G, the 2SB1215S-H offers optimal balance of guaranteed hFE range, lowest V_CE(sat), and highest f_T in the TP package-making it preferred for space-constrained, high-efficiency switching where base drive is moderately available.

Availability

2SB1215S-H is available at Aetrix Electronics and suitable for relay drivers, DC-DC converters, and high-current inverters requiring stable component supply, consistent hFE binning, and halogen-free compliance.

Supply support for 2SB1215S-H 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 supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, and cloud power applications.

The 2SB1215S-H belongs to onsemi's general-purpose bipolar transistor product line, engineered for robust high-current switching in cost-sensitive industrial controls and power conversion systems where reliability and thermal performance are critical.

FAQ

What is the maximum continuous collector current rating for the 2SB1215S-H?

The 2SB1215S-H has a maximum continuous collector current (I_C) rating of –3 A at T_A = 25°C. This rating assumes proper PCB copper area for heat dissipation; derating applies above 25°C ambient, with full 20 W dissipation supported only at case temperature T_C = 25°C. The 2SB1215S-H must not exceed this limit in DC or high-duty-cycle applications without thermal analysis.

Does the 2SB1215S-H have a halogen-free construction?

Yes, the 2SB1215S-H is explicitly marked "Pb Free and Halogen Free" in its ordering information, confirming compliance with JEDEC JS709B and IEC 61249-2-21 standards. This designation applies to both mold compound and lead finish, making the 2SB1215S-H suitable for environmentally regulated industrial and consumer products.

How does the hFE ranking work for the 2SB1215S-H?

The "S" in 2SB1215S-H denotes hFE Rank S, specifying a guaranteed DC current gain range of 140 to 280 at V_CE = –5 V and I_C = –0.5 A. This binning enables predictable base drive design-unlike unranked transistors-and ensures consistent switching behavior across production lots of the 2SB1215S-H.

What is the thermal resistance from junction to case (R_θJC) for the 2SB1215S-H?

The 2SB1215S-H datasheet does not publish an explicit R_θJC value, but its TP package supports 20 W collector dissipation at T_C = 25°C. Based on thermal characterization curves in the datasheet (No.2539-5/7), effective R_θJC is approximately 1.25°C/W-calculated from ΔT = P × R_θJC. This value is critical for heatsink sizing when using the 2SB1215S-H in linear or high-duty-cycle switching modes.

Can the 2SB1215S-H be used as a direct replacement for the 2SB1215S-E?

Yes, the 2SB1215S-H is a drop-in replacement for the 2SB1215S-E in all electrical and mechanical respects-the only difference is halogen-free packaging. Both share identical TP package dimensions, pinout, absolute maximum ratings, and electrical characteristics. The 2SB1215S-H maintains full compatibility while meeting stricter environmental compliance requirements.

2SB1215S-H Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

Package/Case:: TO-251-3 Short Leads, IPAK, TO-251AA

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 3 A

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

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 150mA, 1.5A

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

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

Power - Max:: 1 W

Frequency - Transition:: 130MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TP

2SB1215S-H FAQ

1.How can I place an order for 2SB1215S-H through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SB1215S-H 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 2SB1215S-H reliable?

The price and inventory of 2SB1215S-H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SB1215S-H is usually 5 days.

3.What payment methods are accepted for 2SB1215S-H?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SB1215S-H transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SB1215S-H?

2SB1215S-H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SB1215S-H 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 2SB1215S-H?

For technical support, including 2SB1215S-H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SB1215S-H requirements.

6.How does Aetrix verify that 2SB1215S-H is sourced from the original manufacturer or authorized distributors?

All 2SB1215S-H 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 2SB1215S-H meets industry standards.

7.What is the process for return or replacement of 2SB1215S-H?

All 2SB1215S-H units undergo pre-shipment inspection (PSI). If there is an issue with 2SB1215S-H, 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 2SB1215S-H part is unused and in its original packaging.

Return procedure for 2SB1215S-H:

1.Submit a request within 90 days.

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

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