onsemi 2SC5964-TD-H

Overview

2SC5964-TD-H from onsemi is a PNP bipolar junction transistor rated for −50 V V_CEO, −3 A I_C, and 1.3 W P_C (on ceramic substrate), optimized for low-saturation switching in motor drivers and DC-DC converters.

For engineers reviewing the 2SC5964-TD-H datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) ≤ 150 mV at I_C = −1 A / I_B = −50 mA, f_T = 380 MHz, and SOT-89 package thermal performance under pulsed and DC operation.

Technical Context

This PNP transistor uses onsemi's MBIT process to achieve low V_CE(sat) and high-speed switching with t_on = 35 ns, t_stg = 300 ns, and t_f = 25 ns. It operates with reverse-polarity biasing: base-emitter forward voltage is negative, collector-emitter saturation occurs under negative current flow.

Electrical behavior is defined across temperature (−25°C to +150°C T_j) and load conditions: h_FE ranges 200–560 at V_CE = −2 V, I_C = −100 mA; Cob = 13 pF at V_CB = −10 V, f = 1 MHz; breakdown voltages are confirmed at V_(BR)CEO = −50 V (I_C = −1 mA).

Key Specifications

Pinout & Package

SOT-89 (CASE 419AU), 4.50 × 2.50 × 1.50 mm body with 1.50 mm lead pitch; thermally enhanced plastic package with exposed collector tab for PCB heat sinking.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP switching transistor applications.

Compared with 2SA2125-TD-H, the 2SC5964-TD-H offers tighter V_CE(sat) tolerance and better high-frequency response; versus MJD2955T4G, it delivers superior efficiency in space-constrained SOT-89 layouts but requires careful thermal management on ceramic substrates.

Availability

2SC5964-TD-H is available at Aetrix Electronics and suitable for motor drivers, lamp drivers, and relay interfaces requiring stable component supply in automotive, industrial, and consumer electronics programs.

Supply support for 2SC5964-TD-H 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 is a global semiconductor supplier delivering energy-efficient silicon solutions for automotive, industrial, cloud, medical, and IoT applications.

The 2SC5964-TD-H belongs to onsemi's general-purpose PNP transistor product line, engineered for high-reliability switching in power conversion and electromechanical interface circuits.

FAQ

What is the maximum junction temperature rating for the 2SC5964-TD-H?

The 2SC5964-TD-H has a maximum junction temperature (T_j) rating of 150°C, validated per absolute maximum ratings in the official onsemi datasheet. This limit applies under all operating conditions including pulsed and DC modes. Exceeding 150°C risks permanent degradation of h_FE and increased leakage. Thermal design must ensure case temperature remains within derated limits using the PC–TC curve (Figure 20) and appropriate ceramic substrate mounting.

Does the 2SC5964-TD-H support Pb-Free and Halogen-Free compliance?

Yes, the 2SC5964-TD-H is explicitly certified Pb-Free and Halogen-Free per its ordering suffix "-TD-H" and meets IEC 61249-2-21 requirements. The device uses halogen-free molding compound and lead-free terminations compatible with standard SnAgCu reflow profiles. This compliance is documented in onsemi's ordering information table (page 6) and material declarations.

What is the typical gain-bandwidth product (f_T) of the 2SC5964-TD-H and how is it measured?

The 2SC5964-TD-H has a typical f_T of 380 MHz, measured under V_CE = −10 V and I_C = −500 mA per the Electrical Characteristics table (page 2). This value reflects the frequency at which short-circuit current gain drops to unity and directly determines usable switching bandwidth. Performance is verified across production lots and correlates with the f_T–I_C curve in Figure 8.

Can the 2SC5964-TD-H be used in linear amplifier configurations?

The 2SC5964-TD-H is characterized and qualified for switching applications-not linear amplification. Its h_FE variation (200–560) and thermal limitations (1.3 W on ceramic) make it unsuitable for Class-A or AB audio stages. Linear use would risk thermal runaway due to lack of built-in thermal compensation and undefined SOA in analog bias regions. Use only in saturated-switch or active-clamp topologies per the Safe Operating Area graph (Figure 18).

How does the 2SC5964-TD-H compare to the 2SC5964-TD-E variant?

The 2SC5964-TD-H and 2SC5964-TD-E share identical electrical specifications, package (SOT-89), and pinout. The sole difference is environmental compliance: "-TD-H" denotes Halogen-Free construction, while "-TD-E" is Pb-Free only. Both meet RoHS, but only the -TD-H variant satisfies halogen-free standards required in certain automotive and industrial safety certifications.