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

onsemi 2SA1552T-TL-E

Name: 2SA1552T-TL-E
Brand: onsemi
SKU: 2SA1552T-TL-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SA1552T-TL-E

Manufacturer:: onsemi

Category:: Single Bipolar Transistors

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

Datasheet:: 2SA1552T-TL-E.pdf

Description:: TRANS PNP 160V 1.5A TP-FA

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Product details

Overview

2SA1552T-TL-E from onsemi is a PNP bipolar junction transistor in TP-FA (SC-63/TO-252) package, rated for −160 V V_CEO, −1.5 A I_C, and low −0.13 V typical V_CE(sat) at −500 mA/−50 mA drive, optimized for high-voltage switching in TV audio output stages and DC-DC converters.

For engineers reviewing the 2SA1552T-TL-E datasheet, pinout, applications, or equivalent options, this part delivers verified ultrahigh-speed switching (t_on = 60 ns, t_f = 50 ns), high h_FE rank T (200–400), and Pb-free TP-FA packaging suitable for compact, thermally constrained power stage designs.

Technical Context

This PNP transistor employs FBET and MBIT processes to achieve high breakdown voltage (V_(BR)CBO = −180 V) and large current capability while maintaining fast switching performance. Its dual-collector TP-FA structure supports high-power dissipation (P_C = 15 W at T_c = 25°C) with low saturation voltage.

The device operates across −55°C to +150°C storage range and is characterized for stable h_FE over temperature (25°C, −25°C, +75°C), with f_T = 120 MHz at −10 V V_CE/−50 mA I_C, enabling use in medium-frequency switching applications up to several tens of MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−160 V - Supports high-side switching in ≥120 V DC bus applications without derating.
I_C	−1.5 A continuous - Handles peak audio output or converter primary-side currents in compact layouts.
V_CE(sat)	−0.13 V (typ) at −500 mA/−50 mA - Reduces conduction loss and thermal load in linear and switching modes.
f_T	120 MHz - Enables stable operation in ultrahigh-speed switching circuits up to ~20 MHz fundamental frequency.
t_on/t_f	60 ns / 50 ns - Minimizes switching transition time, critical for efficiency in SMPS and Class-D audio drivers.
h_FE Rank	T (200–400) at −5 V V_CE/−100 mA I_C - Ensures consistent gain matching in push-pull amplifier pairs.
C_ob	12 pF at −10 V V_CB - Low output capacitance improves high-frequency response and reduces Miller effect.

Pinout & Package

2SA1552T-TL-E uses the TP-FA package (JEITA SC-63 / JEDEC TO-252), a surface-mount, 4-terminal, single-PNP configuration with exposed collector pads for enhanced thermal dissipation. The package measures 7.0 × 5.0 × 2.3 mm (typ) and weighs 0.282 g.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input requiring −50 mA drive for full saturation; low V_BE(sat) (−0.85 V typ) eases driver design.
2	Collector	Main high-current, high-voltage terminal; electrically tied to Pin 4 and thermal pad for PCB heat sinking.
3	Emitter	Common reference node; connected to system ground or negative rail in high-side switch configurations.
4	Collector	Dual-collector configuration lowers effective R_thJC and supports parallel current paths without external wiring.

Key Features

Feature	Design Value
Ultrahigh-speed switching	60 ns turn-on and 50 ns fall time enable >100 kHz PWM operation with minimal dead-time loss.
Low V_CE(sat)	−0.13 V typical at −500 mA reduces power dissipation by >30% vs. standard PNP transistors at same current.
High-voltage ruggedness	−180 V V_(BR)CBO and −160 V V_(BR)CEO allow direct use in 110–120 VAC-derived DC rails without snubbers.
TP-FA compact footprint	7.0 × 5.0 mm outline permits dense placement in space-constrained TV and converter PCBs alongside 2SC4027T-TL-E.
Pb-free and halogen-free option	2SA1552T-TL-E meets RoHS and JESD204B-compliant manufacturing requirements without performance trade-offs.

Applications

Color TV Audio Output Stage	DC-DC Converter High-Side Switch
Use Scenario: Driving loudspeaker loads in CRT and LCD TV audio amplifiers with ±15 V supply rails. IC Role / Device Role / Timing Role: PNP output transistor in complementary push-pull pair with 2SC4027T-TL-E, handling negative half-cycle current. Use Value: Low V_CE(sat) and high h_FE minimize crossover distortion and thermal rise at 1–2 W output levels.	Use Scenario: High-side switch in non-isolated buck or SEPIC converters operating from 100 V DC input. IC Role / Device Role / Timing Role: Main switching element controlling energy transfer to inductor; driven by gate driver with −50 mA sink capability. Use Value: −160 V V_CEO rating eliminates need for series stacking; 120 MHz f_T ensures clean switching edge integrity.
Inverter Power Stage	Industrial Motor Control Driver
Use Scenario: Half-bridge leg in 24–48 V DC-fed inverters powering small AC induction motors. IC Role / Device Role / Timing Role: Upper-leg PNP switch synchronized with NPN counterpart; requires fast turn-off to prevent shoot-through. Use Value: 50 ns fall time and 1.2 μs storage time enable safe 20–50 kHz switching with minimal overlap loss.	Use Scenario: Gate driver output stage for IGBTs in HVAC blower or pump controllers with 40–60 V bus. IC Role / Device Role / Timing Role: Level-shifting, current-boosting interface between logic-level controller and high-voltage gate node. Use Value: Dual-collector (Pins 2 & 4) and low V_CE(sat) sustain 1.5 A pulsed gate charge current without thermal throttling.

Color TV Audio Output Stage

DC-DC Converter High-Side Switch

Use Scenario: Driving loudspeaker loads in CRT and LCD TV audio amplifiers with ±15 V supply rails.

IC Role / Device Role / Timing Role: PNP output transistor in complementary push-pull pair with 2SC4027T-TL-E, handling negative half-cycle current.

Use Value: Low V_CE(sat) and high h_FE minimize crossover distortion and thermal rise at 1–2 W output levels.

Use Scenario: High-side switch in non-isolated buck or SEPIC converters operating from 100 V DC input.

IC Role / Device Role / Timing Role: Main switching element controlling energy transfer to inductor; driven by gate driver with −50 mA sink capability.

Use Value: −160 V V_CEO rating eliminates need for series stacking; 120 MHz f_T ensures clean switching edge integrity.

Inverter Power Stage

Industrial Motor Control Driver

Use Scenario: Half-bridge leg in 24–48 V DC-fed inverters powering small AC induction motors.

IC Role / Device Role / Timing Role: Upper-leg PNP switch synchronized with NPN counterpart; requires fast turn-off to prevent shoot-through.

Use Value: 50 ns fall time and 1.2 μs storage time enable safe 20–50 kHz switching with minimal overlap loss.

Use Scenario: Gate driver output stage for IGBTs in HVAC blower or pump controllers with 40–60 V bus.

IC Role / Device Role / Timing Role: Level-shifting, current-boosting interface between logic-level controller and high-voltage gate node.

Use Value: Dual-collector (Pins 2 & 4) and low V_CE(sat) sustain 1.5 A pulsed gate charge current without thermal throttling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SA1552S-TL-E	Same TP-FA package and electrical specs, but h_FE Rank S (140–280) instead of T (200–400); lower gain consistency.	Suitable where gain matching is less critical; may require higher base drive in marginal designs.	Select 2SA1552S-TL-E only when cost sensitivity outweighs h_FE uniformity needs in production batches.
MJD2955RLG	TO-252 package, −70 V V_CEO, −10 A I_C, higher V_CE(sat) (−1.2 V min); no dual-collector configuration.	Better for high-current, low-voltage motor drives; unsuitable for ≥100 V applications due to voltage limit.	Choose MJD2955RLG only for 24–48 V systems needing higher current; not a drop-in replacement for 2SA1552T-TL-E.

Compared with 2SA1552S-TL-E, the 2SA1552T-TL-E offers tighter h_FE distribution for matched pair stability; versus MJD2955RLG, it trades current capacity for higher voltage rating and lower saturation loss-making it optimal for 100–160 V switching where efficiency and layout density are prioritized.

Availability

2SA1552T-TL-E is available at Aetrix Electronics and suitable for color TV audio output stages, DC-DC converter high-side switches, and industrial inverter power stages requiring stable component supply, full RoHS compliance, and traceable Pb-free sourcing.

Supply support for 2SA1552T-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 supplier specializing in energy-efficient power, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The 2SA1552T-TL-E belongs to onsemi's high-voltage bipolar transistor family designed specifically for compact, high-reliability switching in legacy and cost-sensitive consumer power electronics.

FAQ

What is the maximum collector-emitter voltage rating for the 2SA1552T-TL-E?

The 2SA1552T-TL-E has a guaranteed V_(BR)CEO of −160 V at I_C = −1 mA with infinite base-emitter resistance. This rating is confirmed in the Absolute Maximum Ratings table and applies under steady-state DC conditions at T_a = 25°C. Derating is required above 25°C ambient per the SOA curve in the datasheet.

Does the 2SA1552T-TL-E have a dual-collector configuration, and how is it implemented?

Yes, the 2SA1552T-TL-E features a dual-collector configuration: Pins 2 and 4 are both internal collector terminals, electrically connected and thermally coupled to the exposed die paddle. This design reduces effective junction-to-case thermal resistance and allows parallel current handling without external trace routing-verified in the TP-FA package outline and electrical connection diagram.

What is the h_FE range for the 2SA1552T-TL-E, and how is it binned?

The 2SA1552T-TL-E is binned to h_FE Rank T, meaning its DC current gain falls between 200 and 400 when measured at V_CE = −5 V and I_C = −100 mA. This binning is explicitly defined in the Electrical Characteristics table and distinguishes it from Rank S (140–280) variants like 2SA1552S-TL-E.

Can the 2SA1552T-TL-E be used as a direct replacement for the 2SA1552T-E in TP package designs?

No-the 2SA1552T-TL-E uses the TP-FA (TO-252) package with different land pattern, thermal pad, and pin spacing than the through-hole TP (TO-251) variant 2SA1552T-E. While electrical specs match, PCB layout, soldering profile, and thermal management must be requalified; they are not mechanically interchangeable.

What is the thermal resistance (R_thJC) specification for the 2SA1552T-TL-E?

The datasheet does not publish a discrete R_thJC value for the 2SA1552T-TL-E. Instead, thermal performance is characterized via the P_C vs. T_c curve (15 W at T_c = 25°C) and SOA graph. For design purposes, thermal design must follow the recommended land pattern (including thermal pad copper area) shown in the Outline Drawing section of the datasheet.

2SA1552T-TL-E Specifications

Product attributes: Attribute value

Manufacturer:: onsemi

Series:: -

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

Packaging:: Bulk

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 1.5 A

Voltage - Collector Emitter Breakdown (Max):: 160 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 50mA, 500mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 100mA, 5V

Power - Max:: 1 W

Frequency - Transition:: 120MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TP-FA

2SA1552T-TL-E FAQ

1.How can I place an order for 2SA1552T-TL-E through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SA1552T-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 2SA1552T-TL-E reliable?

The price and inventory of 2SA1552T-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 2SA1552T-TL-E is usually 5 days.

3.What payment methods are accepted for 2SA1552T-TL-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1552T-TL-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SA1552T-TL-E?

2SA1552T-TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SA1552T-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 2SA1552T-TL-E?

For technical support, including 2SA1552T-TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1552T-TL-E requirements.

6.How does Aetrix verify that 2SA1552T-TL-E is sourced from the original manufacturer or authorized distributors?

All 2SA1552T-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 2SA1552T-TL-E meets industry standards.

7.What is the process for return or replacement of 2SA1552T-TL-E?

All 2SA1552T-TL-E units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1552T-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 2SA1552T-TL-E part is unused and in its original packaging.

Return procedure for 2SA1552T-TL-E:

1.Submit a request within 90 days.

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

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