My Inquiry
My Account
Toshiba Semiconductor and Storage 2SA1586SU-Y,LF
- Part No.:
- 2SA1586SU-Y,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
2SA1586SU-Y,LF.pdf
- Description:
- TRANS PNP 50V 0.15A SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:6,764
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
2SA1586SU-Y,LF from Toshiba Electronic Devices & Storage Corporation is a silicon PNP epitaxial bipolar transistor designed for low-frequency and audio-frequency amplifier stages. It delivers VCEO = −50 V, IC(max) = −150 mA, hFE = 120–240 (Y-grade), NF = 1 dB (typ.), and operates in the USM surface-mount package with verified pinout Base–Emitter–Collector (1–2–3).
For engineers reviewing the 2SA1586SU-Y,LF datasheet, 2SA1586SU-Y,LF pinout, 2SA1586SU-Y,LF application, or 2SA1586SU-Y,LF equivalent, key selection criteria include AEC-Q101 qualification status for automotive use, hFE linearity (0.95 typ.), low-noise performance at 1 kHz, and complementary pairing with 2SC4116 in push-pull audio output stages.
Technical Context
This PNP transistor employs an epitaxial base structure optimized for stable DC current gain across collector currents from −0.1 mA to −100 mA. Its hFE linearity ratio hFE(−0.1 mA)/hFE(−2 mA) = 0.95 (typ.) ensures minimal distortion in Class-A audio preamplifier biasing.
The device meets AEC-Q101 stress test requirements for automotive applications and features a maximum junction temperature of 125 °C with 200 mW power dissipation on FR4 board (25.4 mm × 25.4 mm × 1.6 mm, Cu pad 0.5 mm² × 3).
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 driver-stage current delivery for small-signal speaker outputs |
| hFE Range | 120–240 (Y-grade) - provides predictable bias point stability in discrete amplifier feedback loops |
| NF | 1 dB (typ.) at 1 kHz, RG = 10 kΩ - minimizes audible noise in microphone preamp and tone-control circuits |
| fT | 7 MHz - sufficient for full audio band (20 Hz–20 kHz) amplification with margin |
| Cob | 4 pF - limits Miller capacitance impact on high-frequency roll-off in common-emitter configurations |
Pinout & Package
Package: USM (Ultra Small Mold), 3-pin surface-mount, 6.0 mg typical weight, footprint compatible with JEDEC TO-236AB outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input node; requires series resistor for stable biasing in linear amplifier operation |
| 2 | Emitter | Common reference terminal; connected to negative rail in PNP common-emitter amplifier topologies |
| 3 | Collector | Output current sink; routed to load or next stage with thermal relief on PCB for 200 mW dissipation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive ambient temperature range (−40 °C to +125 °C junction) and humidity/temperature cycling stress |
| hFE linearity | hFE(−0.1 mA)/hFE(−2 mA) = 0.95 (typ.) - reduces harmonic distortion in low-level signal amplification |
| Complementary pairing | Matched electrical symmetry with 2SC4116 (NPN) for push-pull output stages in Class-B/AB audio designs |
| Low-noise operation | NF = 1 dB (typ.) at 1 kHz - preserves SNR in first-stage preamplifiers where noise figure dominates system performance |
Applications
| Audio Preamp Stage | Automotive Cabin Audio Driver |
|---|---|
Use Scenario: Low-noise voltage amplification of microphone or line-level signals before ADC or tone control. IC Role / Device Role / Timing Role: PNP common-emitter small-signal amplifier with emitter degeneration for gain stability. Use Value: 1 dB (typ.) noise figure preserves signal integrity; hFE linearity minimizes THD below 0.5% at 1 kHz. | Use Scenario: Output driver for OEM cabin speakers in infotainment head units operating at 12 V battery supply. IC Role / Device Role / Timing Role: Complementary PNP switch/driver paired with 2SC4116 in Class-AB push-pull topology. Use Value: AEC-Q101 qualification ensures reliability under automotive thermal cycling; −50 V VCEO accommodates load dump transients. |
| Discrete Tone Control Circuit | Industrial Sensor Signal Conditioning |
Use Scenario: Gain-setting stage in passive-active equalizer networks for bass/mid/treble adjustment. IC Role / Device Role / Timing Role: Linear amplifier with fixed emitter resistor for predictable hFE-dependent gain scaling. Use Value: Tight hFE bin (Y-grade: 120–240) enables consistent channel matching across stereo tone stacks. | Use Scenario: Amplification of millivolt-level thermocouple or bridge sensor outputs in PLC analog input modules. IC Role / Device Role / Timing Role: DC-coupled PNP amplifier with low input bias current and stable quiescent point. Use Value: −150 mA IC(max) supports 4–20 mA loop driver interface; −50 V VCEO allows isolation from industrial supply rails. |
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-TL-E | hFE = 120–270, VCEO = −50 V, same USM package, but NF = 10 dB (max) - no typ. value specified | Not AEC-Q101 qualified; intended for general-purpose use only | Select when automotive qualification is not required and higher hFE upper bound is beneficial |
| BC807-40,215 | hFE = 250–630, VCEO = −45 V, SOT-23 package, NF = 10 dB (max) - no typ. value specified | Higher hFE spread increases gain variance; lower VCEO limits transient margin | Prefer for cost-sensitive consumer audio where tighter hFE linearity is noncritical |
Compared with 2SA1586SU-Y,LF, the 2SA1037AK-TL-E offers broader hFE range but lacks automotive qualification and low-noise typ. spec, while BC807-40,215 trades VCEO margin and hFE linearity for wider gain distribution and lower unit cost in non-automotive designs.
Availability
2SA1586SU-Y,LF is available at Aetrix Electronics and suitable for audio preamplifiers, automotive cabin audio drivers, discrete tone control circuits, and industrial sensor signal conditioning requiring stable component supply and AEC-Q101 compliance.
Supply support for 2SA1586SU-Y,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 reliability, efficiency, and automotive-grade robustness.
The 2SA1586SU-Y,LF belongs to Toshiba's legacy low-noise PNP transistor product line, engineered specifically for high-fidelity audio amplification and AEC-Q101-compliant automotive signal conditioning.
FAQ
What is the hFE classification for 2SA1586SU-Y,LF?
The "Y" suffix in 2SA1586SU-Y,LF denotes hFE = 120–240 at VCE = −6 V and IC = −2 mA. This binning ensures predictable gain behavior in linear amplifier bias networks and complements the 2SC4116 NPN transistor for matched push-pull operation.
Is 2SA1586SU-Y,LF qualified for automotive applications?
Yes, 2SA1586SU-Y,LF is AEC-Q101 qualified per the official Toshiba orderable part number list. It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock, making it suitable for cabin audio systems and body control modules within defined ambient and junction temperature limits.
What package type does 2SA1586SU-Y,LF use and what are its mounting requirements?
2SA1586SU-Y,LF uses the USM (Ultra Small Mold) package - a 3-pin surface-mount outline identical to JEDEC TO-236AB. Recommended PCB layout includes thermal relief pads for Pin 3 (Collector) and 0.5 mm² copper area per pin to sustain 200 mW dissipation at Ta = 25 °C on FR4.
How does the noise figure of 2SA1586SU-Y,LF compare to similar PNP transistors?
2SA1586SU-Y,LF specifies NF = 1 dB (typ.) at 1 kHz with RG = 10 kΩ - a confirmed typ. value uncommon among general-purpose PNPs. Most alternatives (e.g., BC807 series) only guarantee ≤10 dB max, making 2SA1586SU-Y,LF preferred for low-noise front-end amplification where SNR is critical.
What is the complementary NPN transistor for 2SA1586SU-Y,LF?
The officially designated complementary NPN transistor for 2SA1586SU-Y,LF is the 2SC4116. Both share matched VCEO (−50 V), IC(max) (−150 mA), and hFE grading structure, enabling symmetrical Class-AB push-pull output stages with minimized crossover distortion in discrete audio amplifier designs.
2SA1586SU-Y,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 70 @ 2mA, 6V
- Power - Max:
- 100 mW
- Frequency - Transition:
- 80MHz
- Operating Temperature:
- 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
2SA1586SU-Y,LF FAQ
1.How can I place an order for 2SA1586SU-Y,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SA1586SU-Y,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 2SA1586SU-Y,LF reliable?
The price and inventory of 2SA1586SU-Y,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2SA1586SU-Y,LF is usually 5 days.
3.What payment methods are accepted for 2SA1586SU-Y,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1586SU-Y,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SA1586SU-Y,LF?
2SA1586SU-Y,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SA1586SU-Y,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 2SA1586SU-Y,LF?
For technical support, including 2SA1586SU-Y,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1586SU-Y,LF requirements.
6.How does Aetrix verify that 2SA1586SU-Y,LF is sourced from the original manufacturer or authorized distributors?
All 2SA1586SU-Y,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 2SA1586SU-Y,LF meets industry standards.
7.What is the process for return or replacement of 2SA1586SU-Y,LF?
All 2SA1586SU-Y,LF units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1586SU-Y,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 2SA1586SU-Y,LF part is unused and in its original packaging.
Return procedure for 2SA1586SU-Y,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2SA1586SU-Y,LF Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
