onsemi 2SD1624T-TD-H

Overview

2SD1624T-TD-H from onsemi is an NPN bipolar junction transistor in PCP (SOT-89) package, rated for −50 V V_CEO, −3 A I_C, and 500 mW P_C at T_a=25°C (1.5 W on ceramic substrate), with low V_CE(sat) of 0.19 V at I_C=−2 A/I_B=−100 mA, optimized for relay drivers and lamp drivers in industrial control systems.

For engineers reviewing the 2SD1624T-TD-H datasheet, pinout, applications, or equivalent options, key selection criteria include verified V_CE(sat) performance at high current, h_FE rank T (200–400 at I_C=−100 mA), fast switching (t_on=70 ns, t_f=35 ns), and Pb-free + halogen-free compliance per TD-H packing specification.

Technical Context

This NPN transistor uses onsemi's FBET and MBIT processes to achieve low saturation voltage and wide safe operating area (ASO). Its design targets linear and switching operation in medium-power DC applications where thermal stability under pulsed loads (I_CP=−6 A, 100 ms) and reliable gain at high collector current (h_FE2=35 at I_C=−3 A) are critical.

Electrical behavior is characterized across temperature (T_stg=−55 to +150°C, T_j=150°C max) and bias conditions: f_T=150 MHz at V_CE=−10 V/I_C=−50 mA, C_ob=25 pF at V_CB=−10 V/f=1 MHz, and V_(BR)CEO=−50 V with I_C=−1 mA.

Key Specifications

Pinout & Package

2SD1624T-TD-H is housed in a PCP package (JEITA SC-62 / JEDEC SOT-89 / TO-243), with standardized 3-pin configuration and surface-mount land pattern optimized for thermal transfer on ceramic substrates.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar NPN medium-power switching applications.

Compared with MJD127G and 2SD1761T-TD-H, the 2SD1624T-TD-H offers the lowest V_CE(sat) among PCP-packaged alternatives and optimal balance of speed, gain, and thermal performance for 24 V industrial switching-without requiring layout changes.

Availability

2SD1624T-TD-H is available at Aetrix Electronics and suitable for relay drivers, lamp drivers, and voltage regulators requiring stable component supply, long-term industrial lifecycle support, and halogen-free compliance.

Supply support for 2SD1624T-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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in automotive, industrial, cloud, and IoT solutions.

The 2SD1624T-TD-H belongs to onsemi's general-purpose bipolar transistor product line, engineered for robust medium-power switching in harsh industrial environments where reliability, thermal stability, and regulatory compliance are mandatory.

FAQ

What is the package type and pin configuration of the 2SD1624T-TD-H?

The 2SD1624T-TD-H uses the PCP package (equivalent to JEDEC SOT-89 and JEITA SC-62), with Pin 1 = Base, Pin 2 = Collector (tab-connected), and Pin 3 = Emitter. This 3-pin surface-mount configuration supports thermal dissipation via the collector tab when mounted on ceramic substrates, and is confirmed in the official onsemi datasheet No.2019-2/7.

What does the "TD-H" suffix indicate in 2SD1624T-TD-H?

The "TD-H" suffix denotes tape-and-reel packaging (TD) with halogen-free and Pb-free compliance (H), per onsemi's ordering information table. It specifies 1,000 pcs./reel, RoHS-compliant materials, and adherence to IEC 61249-2-21, distinguishing it from the "TD-E" (Pb-free only) variant. This marking is explicitly assigned to the 2SD1624T-TD-H in the datasheet's Ordering Information section.

What is the guaranteed h_FE range for the 2SD1624T-TD-H?

The 2SD1624T-TD-H is ranked as "T", guaranteeing h_FE = 200–400 at V_CE = −2 V and I_C = −100 mA, as defined in the datasheet's h_FE1 specification table and Rank classification chart. This range ensures predictable base drive design for saturation in switching applications without overdesigning the driver stage.

Can the 2SD1624T-TD-H replace the 2SD1624S-TD-H in existing designs?

Yes-the 2SD1624T-TD-H and 2SD1624S-TD-H share identical package, electrical ratings, and TD-H packing, differing only in h_FE rank (T vs. S: 200–400 vs. 140–280). The higher-gain T-rank version may reduce required base current but does not affect pinout, thermal profile, or maximum ratings, making it a direct functional upgrade in most relay and lamp driver circuits.

What is the maximum pulsed collector current rating for the 2SD1624T-TD-H?

The 2SD1624T-TD-H is rated for I_CP = −6 A at pulse width = 100 ms, as specified in the Absolute Maximum Ratings table. This pulsed rating applies under single-pulse conditions with duty cycle ≤ 10% and assumes adequate thermal management-enabling reliable switching of inductive loads like relay coils and solenoids without second-breakdown failure.