onsemi MPS6560

Overview

MPS6560 from onsemi is an NPN silicon audio transistor optimized for low-noise, medium-current amplification in analog signal paths, with V_CEO = 25 V, I_C = 500 mA, h_FE = 35–200 (at 10–500 mA), f_T = 60 MHz, and V_CE(sat) ≤ 0.5 V at 500 mA/50 mA drive - used in preamplifier stages, tone control circuits, and portable audio output drivers.

For engineers reviewing the MPS6560 datasheet, pinout, applications, or equivalent options, this page delivers verified package mapping (TO-92 Style 1), terminal assignment (Emitter-Base-Collector), thermal derating data (5.0 mW/°C @ T_A), and direct alternatives with documented h_FE and saturation voltage differences.

Technical Context

The MPS6560 operates as a general-purpose linear NPN bipolar junction transistor, designed for Class-A and Class-AB audio amplification where low distortion and stable DC gain are required. Its f_T of 60 MHz supports wideband audio fidelity up to 20 kHz with margin, while C_obo ≤ 30 pF minimizes high-frequency feedback sensitivity.

It features symmetrical breakdown ratings (V_(BR)CEO = V_(BR)CBO = 25 V), low leakage (I_CES, I_ICBO, I_IEBO ≤ 100 nA), and a junction temperature range of −55°C to +150°C - enabling reliable operation in consumer and industrial audio equipment with ambient temperatures up to 70°C.

Key Specifications

Pinout & Package

Package: TO-92 (Case 29-11, Style 1), epoxy-molded plastic with 3 leads, 5,000 units per box. Lead finish: Sn (Pb-free option MPS6560G available).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN audio transistor applications.

Compared with BC548B and 2N3904, the MPS6560 uniquely balances 500 mA current delivery, 25 V breakdown, and 60 MHz f_T in TO-92 - making it the only option among the three qualified for medium-power audio driver roles without derating or parallel devices.

Availability

MPS6560 is available at Aetrix Electronics and suitable for portable audio amplifiers, automotive cabin audio preamps, and consumer tone control circuits requiring stable component supply and long-lifecycle support.

Supply support for MPS6560 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, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.

The MPS6560 belongs to onsemi's legacy discrete transistor portfolio, engineered specifically for cost-sensitive, high-reliability analog audio signal amplification - emphasizing manufacturability, thermal robustness, and consistent parametric distribution.

FAQ

What is the maximum continuous collector current rating for the MPS6560?

The MPS6560 has a maximum continuous collector current (I_C) rating of 500 mA at T_A = 25°C. Derating is required above 25°C at 5.0 mW/°C. This rating supports medium-power audio output stages, such as headphone drivers or small speaker amplifiers, provided thermal management (e.g., PCB copper area) is implemented per the R_JA = 200 °C/W specification. The MPS6560 must not be operated beyond this limit without verifying junction temperature.

Is the MPS6560 pin-compatible with the 2N3904 or BC547?

No, the MPS6560 is not pin-compatible with the 2N3904 or BC547. While all three use TO-92 packages, the MPS6560 follows Style 1 pinout (Emitter-Base-Collector), whereas the 2N3904 uses Style 2 (Base-Emitter-Collector) and BC547 typically uses Style 17 (Collector-Base-Emitter). Swapping them without board revision will reverse polarity and cause circuit failure. Always verify pinout diagrams from official onsemi documentation before substitution.

Does the MPS6560 support Pb-free assembly processes?

Yes, the MPS6560G variant is the Pb-free version of the MPS6560, with identical electrical specifications and TO-92 packaging. It complies with RoHS Directive 2011/65/EU and supports standard reflow soldering profiles. The "G" suffix denotes lead-free termination; both MPS6560 and MPS6560G share the same marking layout (MPS6560 + date code) and mechanical dimensions, enabling drop-in replacement in compliant manufacturing lines.

What is the typical transition frequency (f_T) of the MPS6560 and how does it affect audio performance?

The MPS6560 has a minimum f_T of 60 MHz, measured at I_C = 10 mA, V_CE = 10 V, and f = 20 MHz. This provides substantial bandwidth margin over the 20 kHz audio band, ensuring flat small-signal gain and minimal phase distortion in preamplifier and tone control applications. Unlike RF transistors, the MPS6560's f_T is balanced with optimized h_FE and V_CE(sat) for linear analog use - not for switching or RF amplification.

Can the MPS6560 be used in switching applications like relay drivers?

The MPS6560 can be used in low-speed switching applications such as relay or LED drivers, provided I_C stays within 500 mA and V_CE remains ≤25 V. Its V_CE(sat) ≤ 0.5 V at I_B = 50 mA ensures low conduction loss, but its f_T and storage time are not optimized for high-frequency PWM. For >10 kHz switching, dedicated switching transistors (e.g., MMBT2222A) are preferred. The MPS6560 remains best suited for linear amplification, not fast digital switching.