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Toshiba Semiconductor and Storage 2SA1587-GR,LF
- Part No.:
- 2SA1587-GR,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
2SA1587-GR,LF.pdf
- Description:
- TRANS PNP 120V 0.1A SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:24,064
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Product details
Overview
2SA1587-GR,LF from Toshiba Electronic Devices & Storage Corporation is a silicon PNP epitaxial transistor designed for audio-frequency general-purpose amplifier circuits. It delivers high voltage capability (VCEO = −120 V), high DC current gain (hFE = 200–400 for GR grade), low noise (NF = 1 dB typ. at 1 kHz), and AEC-Q101 qualification for automotive-grade reliability in signal amplification stages.
For engineers reviewing the 2SA1587-GR,LF datasheet, 2SA1587-GR,LF pinout, 2SA1587-GR,LF application, or 2SA1587-GR,LF equivalent, key selection criteria include its complementary pairing with 2SC4117, SC-70 package constraints, hFE linearity (0.95 typ.), −120 V breakdown rating, and suitability for low-noise preamplifier and driver-stage designs in automotive infotainment and industrial audio systems.
Technical Context
This PNP bipolar junction transistor employs Toshiba's PCT (Planar Collector Technology) process to achieve stable hFE linearity and low noise performance across collector currents from −0.1 mA to −2 mA. Its −120 V VCEO and VCBO ratings support operation in high-voltage bias networks, while the 100 MHz fT enables use in wideband audio and low-frequency RF amplifier topologies.
The device operates in common-emitter configuration with guaranteed VCE(sat) ≤ −0.3 V at IC = −10 mA/IB = −1 mA and exhibits Cob = 4 pF at VCB = −10 V - critical parameters for stability and bandwidth control in multi-stage amplifier feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −120 V: Enables safe operation in high-voltage audio supply rails up to ±60 V without breakdown. |
| hFE (GR grade) | 200–400: Ensures predictable DC biasing and gain stability in Class-A preamplifier stages. |
| NF (typ.) | 1 dB at 1 kHz, RG = 10 kΩ: Supports high-fidelity low-noise amplification in microphone and sensor front-ends. |
| fT | 100 MHz: Allows stable gain extension into upper audio and sub-RF frequencies without peaking. |
| Cob | 4 pF at VCB = −10 V: Minimizes Miller effect in common-emitter configurations for improved high-frequency response. |
| PC (FR4 board) | 200 mW: Defines thermal derating envelope for continuous operation on standard PCB layouts. |
Pinout & Package
Package: SC-70 (JEITA), also designated 2-2E1A by Toshiba; surface-mount, 3-terminal plastic package measuring 2.0 × 1.25 × 0.9 mm, weight 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Emitter (E) | Current sink terminal in PNP operation | Connected to most positive rail in common-emitter amplifier; sets DC bias reference point. |
| Base (B) | Control input for minority-carrier injection | Receives reverse-biased drive signal; requires current-limiting resistor to prevent overdrive. |
| Collector (C) | Output current source terminal | Drives load or next stage; polarity inversion occurs relative to base input in common-emitter mode. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive ambient temperature range (−40°C to +125°C) and vibration/stress requirements. |
| hFE linearity ratio | 0.95 (typ.) between IC = −0.1 mA and −2 mA: Reduces harmonic distortion in linear amplifier operation. |
| Complementary pair | Matched electrical characteristics with 2SC4117 (NPN): Enables balanced push-pull output stages. |
| Low VCE(sat) | ≤ −0.3 V at IC/IB = 10: Minimizes power loss and thermal rise in high-current driver applications. |
Applications
| Automotive Audio Preamp | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Low-noise amplification of analog signals from MEMS microphones or piezoelectric sensors in vehicle cabin modules. IC Role / Device Role / Timing Role: PNP small-signal amplifier in first-stage gain block with emitter-degeneration biasing. Use Value: 1 dB NF and high hFE linearity preserve SNR and minimize THD in wide-dynamic-range voice capture. |
Use Scenario: Amplifying millivolt-level outputs from thermocouples or strain gauges in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: DC-coupled PNP amplifier configured as current source or emitter follower for impedance transformation. Use Value: −120 V VCEO supports isolation from noisy 24 V industrial bus rails; low ICBO (< −0.1 µA) ensures stable offset over temperature. |
| Portable Media Player Output Stage | Legacy Audio Equipment Repair |
Use Scenario: Driving low-impedance headphone loads (16–32 Ω) in battery-powered portable audio devices. IC Role / Device Role / Timing Role: Complementary PNP component in Class-AB output stage paired with 2SC4117. Use Value: Matched hFE and VCE(sat) enable symmetrical clipping behavior and reduced crossover distortion. |
Use Scenario: Drop-in replacement for obsolete transistors in vintage hi-fi receivers and tape deck preamplifiers. IC Role / Device Role / Timing Role: Direct functional replacement in discrete BJT-based tone control and phono equalization circuits. Use Value: Identical SC-70 footprint and pinout (E-B-C) allows zero-layout change; GR grade matches original hFE binning. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP small-signal amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2SA1037AK-TR | Higher hFE (400–800), lower VCEO (−50 V), same SC-70 package | Not suitable for >−50 V bias rails; better for low-voltage portable logic interface | Select only if system supply is ≤±25 V and higher gain is prioritized over voltage headroom. |
| MMBT2907ALT1G | Lower VCEO (−60 V), wider hFE spread (100–300), same SOT-23 footprint but different pinout (E-C-B) | Requires PCB layout revision due to reversed collector/emitter terminals | Use only when redesign is acceptable; verify pin compatibility before substitution. |
Compared with 2SA1587-GR,LF, the 2SA1037AK-TR trades voltage robustness for higher gain in compact low-voltage systems, while the MMBT2907ALT1G demands layout changes due to non-identical pinout despite similar package outline - making 2SA1587-GR,LF uniquely suited for legacy-compatible, high-voltage audio amplifier replacements.
Availability
2SA1587-GR,LF is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor signal chains, and legacy audio equipment repair requiring stable component supply and long-term obsolescence mitigation.
Supply support for 2SA1587-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 applications.
The 2SA1587-GR,LF belongs to Toshiba's legacy audio-grade PNP transistor family, engineered specifically for low-noise, high-linearity amplification in analog signal paths where reliability and parameter consistency are critical.
FAQ
What is the hFE classification for 2SA1587-GR,LF?
The "GR" suffix in 2SA1587-GR,LF denotes the hFE bin: 200 to 400 at VCE = −6 V and IC = −2 mA. This grading ensures consistent DC gain across production lots, critical for matched-pair amplifier designs and bias stability in production audio hardware using the 2SA1587-GR,LF.
Is 2SA1587-GR,LF pin-compatible with 2SC4117?
No - 2SA1587-GR,LF (PNP) and 2SC4117 (NPN) are complementary in electrical function and specification, not pinout. Both use SC-70 packages but have identical E-B-C pin assignments; they are intended for symmetric circuit placement (e.g., push-pull stages), not direct physical substitution. The 2SA1587-GR,LF must be placed with emitter toward the positive rail, opposite to the 2SC4117 orientation.
Does 2SA1587-GR,LF meet AEC-Q101 requirements?
Yes - 2SA1587-GR,LF is explicitly AEC-Q101 qualified per Toshiba's documentation (Note 1). This certification covers stress testing for temperature cycling, humidity, mechanical shock, and high-temperature operating life, confirming suitability for automotive under-hood and cabin applications where the 2SA1587-GR,LF operates within its rated −40°C to +125°C junction temperature range.
What is the maximum allowable collector power dissipation for 2SA1587-GR,LF?
The 2SA1587-GR,LF has two power ratings: 200 mW when mounted on an FR4 board (25.4 mm × 25.4 mm × 1.6 mm, Cu pad 0.5 mm² × 3) with Tj ≤ 150°C, and 100 mW under conditions where Tj is limited to 125°C. Derating is required above 25°C ambient - consult the PC–Ta curve in the 2SA1587-GR,LF datasheet for precise thermal design margins.
Can 2SA1587-GR,LF replace older 2SA1587 variants without design changes?
Yes - the "LF" suffix indicates lead-free, RoHS-compliant packaging with identical electrical specs, SC-70 footprint, and E-B-C pinout as earlier versions. No PCB or schematic modifications are needed when upgrading to 2SA1587-GR,LF, and its AEC-Q101 qualification adds reliability assurance beyond legacy 2SA1587 units - making it a seamless drop-in replacement in existing 2SA1587 designs.
2SA1587-GR,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 100 mA
- Voltage - Collector Emitter Breakdown (Max):
- 120 V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 1mA, 10mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 2mA, 6V
- Power - Max:
- 100 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70
2SA1587-GR,LF FAQ
1.How can I place an order for 2SA1587-GR,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 2SA1587-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 2SA1587-GR,LF reliable?
The price and inventory of 2SA1587-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 2SA1587-GR,LF is usually 5 days.
3.What payment methods are accepted for 2SA1587-GR,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2SA1587-GR,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2SA1587-GR,LF?
2SA1587-GR,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2SA1587-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 2SA1587-GR,LF?
For technical support, including 2SA1587-GR,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2SA1587-GR,LF requirements.
6.How does Aetrix verify that 2SA1587-GR,LF is sourced from the original manufacturer or authorized distributors?
All 2SA1587-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 2SA1587-GR,LF meets industry standards.
7.What is the process for return or replacement of 2SA1587-GR,LF?
All 2SA1587-GR,LF units undergo pre-shipment inspection (PSI). If there is an issue with 2SA1587-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 2SA1587-GR,LF part is unused and in its original packaging.
Return procedure for 2SA1587-GR,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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