onsemi 2SA1576ART1

Overview

2SA1576ART1 from onsemi is a PNP general-purpose amplifier transistor in SC-70 (SOT-323) surface-mount package, rated for V_(BR)CEO = 50 V, I_C = 100 mA continuous, h_FE = 180–390 at 2 mA/6 V, and P_D = 200 mW - used in low-power audio preamplifier stages and signal switching circuits.

For engineers reviewing the 2SA1576ART1 datasheet, pinout, applications, or equivalent options, key selection criteria include its PNP polarity, SC-70 footprint compatibility, guaranteed h_FE range, V_(BR)EBO = 7.0 V tolerance, and moisture sensitivity level 1 handling requirements.

Technical Context

This discrete PNP bipolar junction transistor operates in linear amplification and active switching modes with base-emitter forward bias enabling current-controlled collector current. Its design supports low-noise small-signal amplification where moderate gain consistency and thermal stability up to T_J = 150°C are required.

The device complies with Pb-free packaging standards and meets JEDEC moisture sensitivity level 1 (MSL-1), allowing unlimited floor life before reflow. It is not intended for power switching or high-frequency RF applications due to f_T not specified and limited I_C(P) = 200 mA peak rating.

Key Specifications

Pinout & Package

SC-70 (SOT-323) package with gull-wing leads, 1.3 mm × 2.1 mm body, 0.95 mm max height, and MSL-1 moisture sensitivity rating. Lead finish: matte tin.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 2SA1576ART1, the 2SA1015KT146 offers greater gain flexibility at the cost of footprint size, while the BC807-25,215 matches the SC-70 form factor but sacrifices 5 V of collector-emitter standoff and 140 points of minimum h_FE, affecting bias stability in precision analog stages.

Availability

2SA1576ART1 is available at Aetrix Electronics and suitable for portable audio systems, industrial sensor interfaces, discrete logic modules, and battery-powered instrumentation requiring stable component supply and RoHS-compliant packaging.

Supply support for 2SA1576ART1 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

onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power and signal management solutions for automotive, industrial, cloud computing, and consumer markets.

The 2SA1576ART1 belongs to onsemi's general-purpose bipolar transistor product line, designed for cost-sensitive, low-power linear amplification and switching applications where reliability, MSL-1 handling, and Pb-free compliance are mandatory.

FAQ

What is the maximum operating junction temperature for the 2SA1576ART1?

The 2SA1576ART1 has a maximum junction temperature (T_J) of 150°C, verified per onsemi's thermal characterization. This rating defines the upper thermal limit for reliable operation; sustained operation above this threshold risks permanent degradation. Derating curves in the official datasheet must be applied when ambient temperature or power dissipation exceeds nominal conditions. The 2SA1576ART1 remains functional within its full specification range only when T_J stays ≤ 150°C.

Is the 2SA1576ART1 pin-compatible with the 2SA1576A?

No - the 2SA1576ART1 uses SC-70 (SOT-323) packaging with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector, whereas the through-hole 2SA1576A uses TO-92 with different pinout and mechanical dimensions. There is no physical or electrical pin-to-pin equivalence. Substitution requires PCB redesign. The 2SA1576ART1 is a distinct surface-mount variant optimized for automated assembly, not a drop-in replacement for leaded versions.

Does the 2SA1576ART1 support high-frequency signal amplification?

No - the 2SA1576ART1 datasheet does not specify transition frequency (f_T) or gain-bandwidth product, and its design targets low-frequency (<1 MHz) small-signal amplification and switching. Applications requiring RF or wideband response (e.g., >10 MHz) should select transistors explicitly characterized for those frequencies. The 2SA1576ART1 is unsuitable for RF amplifier, oscillator, or high-speed digital switching roles.

What does the "T1" suffix indicate in the 2SA1576ART1 ordering code?

The "T1" suffix in 2SA1576ART1 denotes packaging on a 7-inch tape-and-reel format containing 3,000 units. It specifies mechanical handling configuration only - not a functional or parametric variant. The "R" indicates tape-and-reel, and "T1" identifies reel diameter. Electrical specifications, package outline, and marking remain identical to other SC-70 variants like 2SA1576ART3 (13-inch reel). The 2SA1576ART1 is fully interchangeable with other SC-70 versions except for packaging logistics.

Can the 2SA1576ART1 replace an NPN transistor in the same circuit?

No - the 2SA1576ART1 is a PNP transistor and cannot directly replace an NPN device without reversing supply polarity, swapping bias networks, and reconfiguring all current paths. Its complementary NPN counterpart is the 2SC2412K series. Attempting substitution without full schematic revision will result in non-functional or damaged circuitry. The 2SA1576ART1 must be used in PNP-specific topologies such as high-side switches or inverted gain stages.