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Toshiba Semiconductor and Storage 2SA1162-O,LF
- Part No.:
- 2SA1162-O,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Bipolar Transistors
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
2SA1162-O,LF.pdf
- Description:
- TRANS PNP 50V 0.15A S-MINI
- Quantity:
- Payment:
- Shipping:
Inventory:5,365
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Product details
Overview
2SA1162-O,LF from Toshiba Electronic Devices & Storage Corporation is a silicon PNP epitaxial bipolar transistor designed for low-frequency and audio-frequency general-purpose amplifier applications. It delivers VCEO = −50 V, IC(max) = −150 mA, hFE = 70–140 (O-class), NF = 1 dB (typ.), and operates in S-Mini package with pinout Base–Emitter–Collector.
For engineers reviewing the 2SA1162-O,LF datasheet, 2SA1162-O,LF pinout, 2SA1162-O,LF application, or 2SA1162-O,LF equivalent, key selection criteria include AEC-Q101 qualification status, hFE linearity (0.95 typ.), low-noise performance at 1 kHz, and complementary pairing with 2SC2712 in push-pull audio stages.
Technical Context
This PNP transistor employs epitaxial base construction to achieve high voltage blocking and stable DC current gain across its specified collector current range. Its hFE classification O (70–140) ensures predictable gain distribution for production matching in dual-transistor amplifier designs.
The device exhibits excellent hFE linearity-measured as hFE(IC = −0.1 mA)/hFE(IC = −2 mA) = 0.95 (typ.)-and low noise figure (1 dB typ. at f = 1 kHz, RG = 10 kΩ), making it suitable for high-fidelity preamplifier and driver stages where signal integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V: Supports rail-to-rail operation in ±24 V audio supply systems without saturation risk. |
| IC(max) | −150 mA: Enables driving 8 Ω loads up to ~1.2 W in Class-A output stages. |
| hFE | 70–140 (O-class): Tight gain binning allows matched-pair biasing in differential amplifiers. |
| NF | 1 dB (typ.) at 1 kHz: Minimizes audible noise contribution in microphone preamp inputs. |
| fT | 7 MHz (min): Ensures adequate bandwidth for full audio spectrum (20 Hz–20 kHz) with margin. |
| PC | 200 mW (on FR4 board): Limits thermal derating to ≤125 °C junction under continuous 100 mA load. |
| Cob | 4 pF (max): Reduces Miller effect in common-emitter gain stages above 100 kHz. |
Pinout & Package
S-Mini package (12 mg typ., JEDEC TO-236AB equivalent), surface-mount, 3-pin plastic molded case with gull-wing leads. Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input node; requires series resistor ≥10 kΩ to limit IB ≤ −30 mA per abs max rating. |
| 2 | Emitter | Common reference terminal in common-base configuration; tied to ground or negative rail in most amplifier topologies. |
| 3 | Collector | High-voltage output node; connects to load or next stage input; reverse-biased relative to emitter during active operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability (HTOL, TC, HAST) - enables use in infotainment power amps without requalification. |
| hFE linearity ratio | 0.95 (typ.): Maintains consistent gain across 0.1–2 mA bias range, reducing harmonic distortion in linear amplifiers. |
| Complementary pairing | Matched with 2SC2712 (NPN): Enables symmetrical push-pull output stages with balanced thermal and gain tracking. |
| Low noise figure | 1 dB (typ. at 1 kHz): Meets IEC 60268-3 requirements for professional audio preamplifier noise floor. |
Applications
| Audio Preamplifier Stage | Automotive Infotainment Output Driver |
|---|---|
Use Scenario: Low-noise voltage amplification of microphone or line-level signals prior to ADC sampling. IC Role / Device Role / Timing Role: PNP common-emitter small-signal amplifier with emitter degeneration for stability. Use Value: 1 dB noise figure preserves SNR in 24-bit audio paths; hFE linearity minimizes THD below 0.05% at 1 kHz. | Use Scenario: Driving 4–8 Ω speakers in OEM head unit power amplifier modules. IC Role / Device Role / Timing Role: Complementary PNP output transistor in Class-AB push-pull pair with 2SC2712. Use Value: AEC-Q101 qualification ensures 15-year field reliability; −50 V VCEO supports 28 V automotive battery transients. |
| General-Purpose Signal Amplifier | Industrial Sensor Signal Conditioning |
Use Scenario: DC-coupled gain block in analog front-ends for instrumentation or control systems. IC Role / Device Role / Timing Role: Fixed-bias PNP amplifier providing 20–30 dB voltage gain with minimal component count. Use Value: Tight hFE bin (O-class) reduces calibration drift; S-Mini footprint saves PCB area in space-constrained modules. | Use Scenario: Amplifying low-level thermocouple or bridge sensor outputs in factory automation PLCs. IC Role / Device Role / Timing Role: Low-noise, high-input-impedance emitter-follower buffer stage. Use Value: −150 mA IC rating supports 10 mA sensor excitation current; Cob < 4 pF avoids capacitive loading on high-Z sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP bipolar transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SA1015-Y,LF | VCEO = −50 V, hFE = 120–240 (Y-class), NF = 10 dB (max), same S-Mini package | Higher hFE spread increases gain mismatch risk in differential pairs; higher max NF limits low-noise use | Select when broader hFE tolerance is acceptable and noise floor >10 dB is permissible |
| MMBT2907ALT1G | VCEO = −60 V, hFE = 100–300, NF = 10 dB (max), SOT-23 package (pinout differs: E-B-C) | Non-complementary to 2SC2712; different pinout requires PCB redesign; higher VCEO adds margin but no gain linearity spec | Select only if pinout change and lack of hFE linearity data are acceptable trade-offs for higher voltage rating |
Compared with 2SA1162-O,LF, the 2SA1015-Y,LF offers wider hFE range but lacks hFE linearity validation and has higher max noise; MMBT2907ALT1G provides higher VCEO and SOT-23 compatibility but introduces pinout mismatch and no AEC-Q101 certification for automotive use.
Availability
2SA1162-O,LF is available at Aetrix Electronics and suitable for audio preamplifiers, automotive infotainment drivers, and industrial sensor signal conditioning requiring stable component supply and long-term lifecycle support.
Supply support for 2SA1162-O,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 focus on reliability, efficiency, and automotive-grade compliance.
The 2SA1162-O,LF belongs to Toshiba's legacy bipolar transistor product line, engineered specifically for low-noise, high-linearity audio and general-purpose amplifier applications in industrial and automotive environments.
FAQ
What does the "O" suffix in 2SA1162-O,LF indicate?
The "O" suffix denotes the hFE gain classification bin: 70–140 at VCE = −6 V and IC = −2 mA. This tight binning enables predictable biasing and matching in dual-transistor circuits such as differential amplifiers or complementary output stages. The 2SA1162-O,LF maintains this specification under standard test conditions and is verified per Toshiba Rev. 4.0.A datasheet.
Is 2SA1162-O,LF qualified for automotive applications?
Yes, 2SA1162-O,LF is AEC-Q101 qualified, as confirmed in Toshiba's orderable part number table and reliability documentation. It meets stress testing requirements for temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This makes 2SA1162-O,LF suitable for automotive infotainment power stages and body control module signal conditioning.
How does the hFE linearity of 2SA1162-O,LF impact amplifier design?
The hFE linearity ratio of 0.95 (typ.)-defined as hFE at −0.1 mA divided by hFE at −2 mA-ensures minimal gain variation across operating current. In 2SA1162-O,LF-based amplifiers, this reduces harmonic distortion and improves fidelity in Class-A and AB stages. Designers can rely on consistent small-signal gain without complex emitter degeneration compensation.
What is the thermal limitation of 2SA1162-O,LF on a standard PCB?
When mounted on a 25.4 mm × 25.4 mm × 1.6 mm FR4 board with 0.8 mm² copper pads, 2SA1162-O,LF has a maximum power dissipation of 200 mW at 25 °C ambient. Derating begins at 1.67 mW/°C above 25 °C, limiting usable power to ~120 mW at 85 °C ambient. Junction temperature must not exceed 150 °C per Toshiba's absolute maximum ratings.
Can 2SA1162-O,LF be used as a direct replacement for 2SA1162-Y,LF?
No-2SA1162-O,LF and 2SA1162-Y,LF differ in hFE classification: O = 70–140, Y = 120–240. Substituting them without circuit recalibration risks bias point shift, gain mismatch, or thermal instability. While both share identical package, pinout, and absolute ratings, the 2SA1162-O,LF's lower hFE range requires adjusted base resistors and may alter loop gain in feedback amplifiers.
2SA1162-O,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):
- 150 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 10mA, 100mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 6V
- Power - Max:
- 150 mW
- Frequency - Transition:
- 80MHz
- Operating Temperature:
- 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- S-Mini
2SA1162-O,LF FAQ
1.How can I place an order for 2SA1162-O,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SA1162-O,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 2SA1162-O,LF reliable?
The price and inventory of 2SA1162-O,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SA1162-O,LF is usually 5 days.
3.What payment methods are accepted for 2SA1162-O,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1162-O,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SA1162-O,LF?
2SA1162-O,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SA1162-O,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 2SA1162-O,LF?
For technical support, including 2SA1162-O,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1162-O,LF requirements.
6.How does Aetrix verify that 2SA1162-O,LF is sourced from the original manufacturer or authorized distributors?
All 2SA1162-O,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 2SA1162-O,LF meets industry standards.
7.What is the process for return or replacement of 2SA1162-O,LF?
All 2SA1162-O,LF units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1162-O,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 2SA1162-O,LF part is unused and in its original packaging.
Return procedure for 2SA1162-O,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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