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

Toshiba Semiconductor and Storage 2SA1182-GR,LF

Name: 2SA1182-GR,LF
Brand: Toshiba Semiconductor and Storage
SKU: 2SA1182-GR,LF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2SA1182-GR,LF

Manufacturer:: Toshiba Semiconductor and Storage

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: 2SA1182-GR,LF.pdf

Description:: TRANS PNP 30V 0.5A S-MINI

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Product details

Overview

2SA1182-GR,LF from Toshiba Electronic Devices & Storage Corporation is a silicon PNP epitaxial transistor in TO-236MOD (SC-59) package, rated for V_CEO = −30 V, I_C = −500 mA, and P_C = 200 mW at T_a = 25°C. It delivers h_FE(GR) = 200–400 at V_CE = −1 V, I_C = −100 mA and h_FE(2) ≥ 70 at V_CE = −6 V, I_C = −400 mA, targeting audio frequency low-power amplifier and switching stages.

For engineers reviewing the 2SA1182-GR,LF datasheet, 2SA1182-GR,LF pinout, 2SA1182-GR,LF application, or 2SA1182-GR,LF equivalent, key selection criteria include its AEC-Q101 qualification, complementary pairing with 2SC2859, guaranteed h_FE linearity at high current, low V_CE(sat) of −0.25 V max, and SC-59 footprint compatibility with space-constrained analog driver designs.

Technical Context

This PNP bipolar junction transistor uses Toshiba's PCT (Planar Collector Technology) process to achieve stable h_FE linearity across collector current-critical for low-distortion audio amplification and precise current-switching control. Its f_T = 200 MHz enables stable operation up to mid-VHF range in RF driver or fast-switching applications.

The device supports dual thermal derating profiles: junction temperature up to 150°C when mounted on FR4 with specified copper pad layout (Note 2), or 125°C under general mounting conditions (Note 3). Cob = 13 pF at V_CB = −6 V ensures predictable Miller effect behavior in common-emitter configurations.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−30 V: Maximum safe collector-emitter voltage before breakdown in common-emitter configuration.
I_C	−500 mA: Continuous DC collector current rating; supports driver-stage loads up to 0.5 A.
h_FE(GR)	200–400: Guaranteed DC current gain range for GR-grade units at V_CE = −1 V, I_C = −100 mA-enables consistent bias design.
V_CE(sat)	−0.25 V max at I_C = −100 mA, I_B = −10 mA: Low saturation voltage reduces conduction loss in switching applications.
f_T	200 MHz: Transition frequency confirms usable bandwidth for audio drivers and medium-speed digital switching.
C_ob	13 pF at V_CB = −6 V: Output capacitance directly impacts high-frequency gain roll-off and stability margin.
AEC-Q101	Qualified: Meets stress-test requirements for automotive electronic components per JESD22-A108.

Pinout & Package

Package: TO-236MOD (JEDEC), identical to JEITA SC-59 and Toshiba 2-3F1A-3-pin surface-mount plastic package with 0.95 mm pitch, 2.9 mm × 1.3 mm footprint, and 0.012 g typical weight.

Pin/Terminal	Circuit Role	Design Meaning
Emitter (E)	Current sink terminal	Connected to ground or lower-potential rail; carries full collector + base current in active mode.
Base (B)	Control input	Receives forward-biased current to regulate collector current; requires external current-limiting resistor in most linear applications.
Collector (C)	Output current source	Supplies load current when saturated or amplifies signal in common-emitter topology; connected to positive supply via load.

Key Features

Feature	Design Value
h_FE linearity at high current	h_FE(2) ≥ 70 at V_CE = −6 V, I_C = −400 mA-reduces harmonic distortion in Class-A/B audio output stages.
Complementary pairing	Explicitly matched to 2SC2859 (NPN) for push-pull amplifier designs-simplifies symmetric biasing and thermal tracking.
AEC-Q101 qualification	Validated for automotive ambient temperature and reliability stress profiles-supports under-hood and infotainment system use.
Low V_CE(sat)	−0.25 V max enables <100 mW conduction loss at 100 mA load-critical for thermally constrained PCB layouts.

Applications

Audio Amplifier Driver Stage	Automotive Infotainment Output Stage
Use Scenario: Driving 8 Ω speaker loads in compact portable audio systems with single-supply rails. IC Role / Device Role / Timing Role: PNP emitter-follower or common-emitter driver providing current gain and level-shifting. Use Value: h_FE ≥ 200 ensures stable bias point across temperature; low V_CE(sat) minimizes heat generation near sensitive analog circuitry.	Use Scenario: Output stage in OEM dashboard audio amplifiers operating in −40°C to +105°C ambient. IC Role / Device Role / Timing Role: Complementary PNP switch in Class-AB output pair with 2SC2859. Use Value: AEC-Q101 qualification and 125°C T_j rating guarantee reliability under automotive thermal cycling and vibration stress.
Low-Power Switching Load Control	Industrial Sensor Signal Conditioning
Use Scenario: Controlling LED arrays or small solenoids in PLC I/O modules with 24 V DC supply. IC Role / Device Role / Timing Role: Saturated switch turning on/off resistive/inductive loads via microcontroller GPIO. Use Value: I_C = −500 mA and V_CEO = −30 V support direct drive of 20 mA–500 mA loads without external buffer stages.	Use Scenario: Transimpedance amplifier stage converting photodiode current to voltage in optical sensor front-ends. IC Role / Device Role / Timing Role: Active load or cascode element improving gain and bandwidth stability. Use Value: f_T = 200 MHz and C_ob = 13 pF allow >10 MHz closed-loop bandwidth while maintaining phase margin in feedback networks.

Audio Amplifier Driver Stage

Automotive Infotainment Output Stage

Use Scenario: Driving 8 Ω speaker loads in compact portable audio systems with single-supply rails.

IC Role / Device Role / Timing Role: PNP emitter-follower or common-emitter driver providing current gain and level-shifting.

Use Value: h_FE ≥ 200 ensures stable bias point across temperature; low V_CE(sat) minimizes heat generation near sensitive analog circuitry.

Use Scenario: Output stage in OEM dashboard audio amplifiers operating in −40°C to +105°C ambient.

IC Role / Device Role / Timing Role: Complementary PNP switch in Class-AB output pair with 2SC2859.

Use Value: AEC-Q101 qualification and 125°C T_j rating guarantee reliability under automotive thermal cycling and vibration stress.

Low-Power Switching Load Control

Industrial Sensor Signal Conditioning

Use Scenario: Controlling LED arrays or small solenoids in PLC I/O modules with 24 V DC supply.

IC Role / Device Role / Timing Role: Saturated switch turning on/off resistive/inductive loads via microcontroller GPIO.

Use Value: I_C = −500 mA and V_CEO = −30 V support direct drive of 20 mA–500 mA loads without external buffer stages.

Use Scenario: Transimpedance amplifier stage converting photodiode current to voltage in optical sensor front-ends.

IC Role / Device Role / Timing Role: Active load or cascode element improving gain and bandwidth stability.

Use Value: f_T = 200 MHz and C_ob = 13 pF allow >10 MHz closed-loop bandwidth while maintaining phase margin in feedback networks.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP bipolar transistor applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
2SA1037AK-TR	h_FE = 120–270 (Y grade), V_CEO = −50 V, P_C = 200 mW, same SC-59 package	Higher V_CEO suits higher-voltage industrial controls; lower h_FE spread may require tighter bias tuning	Select when extended voltage margin is required and GR-grade h_FE consistency is not critical.
MMBT4403	h_FE = 100–300, V_CEO = −40 V, P_C = 310 mW, same SOT-23 footprint	Higher power dissipation and wider V_CEO but no AEC-Q101 qualification or h_FE(2) linearity spec	Choose for non-automotive cost-sensitive designs needing higher I_C headroom and no automotive qualification.

Compared with 2SA1182-GR,LF, the 2SA1037AK-TR offers greater voltage safety margin but less h_FE linearity assurance at high current, while MMBT4403 provides higher power handling without automotive qualification-making 2SA1182-GR,LF the preferred choice where AEC-Q101 compliance and consistent high-current gain are mandatory.

Availability

2SA1182-GR,LF is available at Aetrix Electronics and suitable for audio frequency amplifier driver stages, automotive infotainment output circuits, and low-power switching load control requiring stable component supply across industrial and automotive production cycles.

Supply support for 2SA1182-GR,LF 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on automotive, industrial, and consumer reliability standards.

The 2SA1182-GR,LF belongs to Toshiba's legacy silicon PNP transistor family optimized for audio amplification, switching, and driver applications-engineered for h_FE linearity, thermal stability, and AEC-Q101-compliant robustness.

FAQ

What is the h_FE range for 2SA1182-GR,LF at V_CE = −1 V and I_C = −100 mA?

The 2SA1182-GR,LF has a guaranteed h_FE range of 200–400 under those conditions, corresponding to the "GR" (Green) gain rank marked on the device. This specification is tested and binned during production, ensuring predictable DC current amplification for bias-critical analog circuits. The 2SA1182-GR,LF datasheet explicitly defines this range in Section 2, Electrical Characteristics.

Is 2SA1182-GR,LF qualified for automotive applications?

Yes, the 2SA1182-GR,LF is AEC-Q101 qualified per Note 1 in the official Toshiba datasheet. This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock-validating suitability for automotive infotainment, body control, and lighting modules. The 2SA1182-GR,LF meets these requirements as shipped with the "LF" suffix denoting lead-free and RoHS-compliant packaging.

What package type does 2SA1182-GR,LF use, and is it compatible with standard SMT reflow?

The 2SA1182-GR,LF uses the TO-236MOD package, also known as JEITA SC-59 and Toshiba 2-3F1A-a 3-pin, surface-mount plastic case with 0.95 mm lead pitch. It is fully compatible with standard SnPb and lead-free reflow profiles per J-STD-020, and its thermal profile aligns with FR4 board mounting guidelines specified in the 2SA1182-GR,LF datasheet.

How does 2SA1182-GR,LF complement 2SC2859 in circuit design?

The 2SA1182-GR,LF is explicitly designated as complementary to the NPN 2SC2859, sharing matched h_FE ranges, V_CEO/V_CBO ratings, and thermal characteristics. This pairing enables symmetrical Class-AB audio output stages with balanced crossover distortion and thermal drift-verified in Toshiba reference designs using both 2SA1182-GR,LF and 2SC2859 in push-pull configurations.

What is the maximum allowable collector power dissipation for 2SA1182-GR,LF at 25°C ambient?

At T_a = 25°C on a standard FR4 board (25.4 mm × 25.4 mm × 1.6 mm with three 0.8 mm² Cu pads), the 2SA1182-GR,LF has a maximum collector power dissipation (P_C) of 200 mW, as defined in Note 2 of the Absolute Maximum Ratings table. Derating begins at 1.6 mW/°C above 25°C ambient, reaching zero at T_a = 150°C per the P_C–T_a curve in the 2SA1182-GR,LF datasheet.

2SA1182-GR,LF Specifications

Product attributes: Attribute value

Manufacturer:: Toshiba Semiconductor and Storage

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 30 V

Vce Saturation (Max) @ Ib, Ic:: 250mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 200 @ 100mA, 1V

Power - Max:: 150 mW

Frequency - Transition:: 200MHz

Operating Temperature:: 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: S-Mini

2SA1182-GR,LF FAQ

1.How can I place an order for 2SA1182-GR,LF through Aetrix?

Please submit a Request for Quotation (RFQ) for 2SA1182-GR,LF 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 2SA1182-GR,LF reliable?

The price and inventory of 2SA1182-GR,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SA1182-GR,LF is usually 5 days.

3.What payment methods are accepted for 2SA1182-GR,LF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1182-GR,LF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2SA1182-GR,LF?

2SA1182-GR,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2SA1182-GR,LF 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 2SA1182-GR,LF?

For technical support, including 2SA1182-GR,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1182-GR,LF requirements.

6.How does Aetrix verify that 2SA1182-GR,LF is sourced from the original manufacturer or authorized distributors?

All 2SA1182-GR,LF 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 2SA1182-GR,LF meets industry standards.

7.What is the process for return or replacement of 2SA1182-GR,LF?

All 2SA1182-GR,LF units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1182-GR,LF, 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 2SA1182-GR,LF part is unused and in its original packaging.

Return procedure for 2SA1182-GR,LF:

1.Submit a request within 90 days.

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

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