Toshiba Semiconductor and Storage 2SA1586-GR,LXHF

Overview

2SA1586-GR,LXHF from Toshiba Electronic Devices & Storage Corporation is a silicon PNP epitaxial bipolar transistor rated for VCEO = −50 V, IC = −150 mA (max), hFE = 200–400 (GR grade), NF = 1 dB (typ.), and packaged in USM. It serves as a low-noise, high-linearity audio-frequency amplifier in automotive-grade signal paths.

For engineers reviewing the 2SA1586-GR,LXHF datasheet, 2SA1586-GR,LXHF pinout, 2SA1586-GR,LXHF application, or 2SA1586-GR,LXHF equivalent, key selection criteria include AEC-Q101 qualification, hFE linearity ratio ≥0.95, low-noise performance at 1 kHz, complementary pairing with 2SC4116, and USM package thermal derating on FR4.

Technical Context

This PNP transistor operates in linear amplification mode with verified hFE linearity across IC = −0.1 mA to −2 mA, enabling stable small-signal gain in preamplifier stages. Its −50 V VCEO and −5 V VEBO ratings support robust biasing in split-rail audio circuits up to ±24 V supply configurations.

Noise figure is characterized at RG = 10 kΩ, f = 1 kHz, VCE = −6 V, IC = −0.1 mA - confirming suitability for microphone preamps and line-level analog signal conditioning where SNR preservation is critical.

Key Specifications

Pinout & Package

Package: USM (Ultra Small Mold), 3-pin surface-mount, 6.0 mg typical weight, footprint compatible with JEDEC TO-236AB outline.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP small-signal amplifier applications.

Compared with 2SA1586-GR,LXHF, both alternatives lack verified hFE linearity and AEC-Q101 validation; the 2SA1586-GR,LXHF delivers superior noise performance and automotive-grade reliability in space-constrained USM layouts.

Availability

2SA1586-GR,LXHF is available at Aetrix Electronics and suitable for automotive cabin audio systems, industrial sensor signal conditioners, low-noise microphone preamplifiers, and complementary push-pull driver stages requiring stable component supply and long-term lifecycle assurance.

Supply support for 2SA1586-GR,LXHF 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 2SA1586 series belongs to Toshiba's AEC-Q101-qualified PNP transistor product line, engineered specifically for low-noise, high-linearity audio and sensor interface applications in harsh environments.

FAQ

What does the "GR" suffix indicate in 2SA1586-GR,LXHF?

The "GR" suffix denotes the hFE gain bin: 200–400 at VCE = −6 V, IC = −2 mA. This high-gain classification ensures tighter DC bias predictability in amplifier designs compared to "O" (70–140) or "Y" (120–240) variants. The 2SA1586-GR,LXHF maintains this specification under AEC-Q101 stress conditions and is traceable per lot code on the USM package marking.

Is 2SA1586-GR,LXHF pin-compatible with other USM-packaged PNP transistors?

2SA1586-GR,LXHF uses standard USM pinout (1=Base, 2=Emitter, 3=Collector), matching JEDEC TO-236AB. However, electrical parameters-including hFE linearity, noise figure, and AEC-Q101 qualification-are unique to the 2SA1586-GR,LXHF. Substitution with non-GR or non-LXHF variants may compromise audio fidelity or automotive compliance. Always verify full parametric alignment before replacement.

How is the AEC-Q101 qualification reflected in the 2SA1586-GR,LXHF manufacturing process?

AEC-Q101 qualification for 2SA1586-GR,LXHF includes stress testing across temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing-all performed per JESD22 standards. The LXHF suffix confirms lead-free (Pb-free), halogen-free, and automotive-grade assembly. This ensures 2SA1586-GR,LXHF meets failure rate targets for automotive infotainment and body electronics applications.

What thermal derating applies to 2SA1586-GR,LXHF at elevated ambient temperatures?

2SA1586-GR,LXHF's 200 mW power dissipation is rated on a 25.4 mm × 25.4 mm × 1.6 mm FR4 board with 0.5 mm² copper pads. Above 25 °C ambient, PC must be linearly derated by 1.6 mW/°C up to 125 °C junction limit. At 85 °C ambient, maximum allowable PC drops to ~104 mW. Layout must include thermal relief and avoid adjacent heat sources to maintain 2SA1586-GR,LXHF reliability.

Can 2SA1586-GR,LXHF be used as a direct complement to 2SC4116 in push-pull circuits?

Yes - 2SA1586-GR,LXHF is explicitly designed as the PNP complement to the NPN 2SC4116, sharing matched VCEO, hFE ranges, and USM packaging. Their paired use enables symmetrical Class-AB output stages with minimized crossover distortion. The 2SA1586-GR,LXHF's hFE linearity ratio (0.95 typ.) further ensures gain consistency across signal amplitude, which is critical when paired with 2SC4116 in audio drivers.