Diodes Incorporated ZXTD1M832TA

Overview

ZXTD1M832TA from Diodes Incorporated (formerly Zetex) is a dual PNP low-saturation bipolar transistor in a 3mm × 2mm MLP package, rated for V_CEO = −12 V, I_C = −4 A continuous, and V_CE(sat) = −140 mV @ −1 A. It delivers ultra-low on-state loss for high-efficiency DC-DC converter FET drivers and motor control switches operating at ambient temperatures up to +150°C.

For engineers reviewing the ZXTD1M832TA datasheet, ZXTD1M832TA pinout, ZXTD1M832TA application, or ZXTD1M832TA equivalent, key selection criteria include verified dual-die thermal coupling, IC/IB-controlled saturation voltage across −0.1 A to −4 A, h_FE characterization up to −10 A, and MLP832 package thermal resistance under defined PCB copper configurations.

Technical Context

This dual PNP transistor integrates two matched silicon die in a single MLP832 thermally enhanced micro-leaded package. Each die supports independent switching with fully characterized V_CE(sat) down to −100 mV and h_FE ≥ 45 at −10 A, enabling synchronous current sourcing in half-bridge gate drive stages.

Thermal performance is defined across five PCB mounting conditions: R_θJA ranges from 41.7°C/W (85 cm² 2 oz Cu) to 125°C/W (minimal lead connections), with power dissipation scaling linearly from 1.5 W to 3 W at T_A = 25°C depending on copper area and weight.

Key Specifications

Pinout & Package

Package: MLP832 - 3 mm × 2 mm micro-leaded package with exposed thermal pad; nominal height 0.9 mm; 8-pin dual-die layout (B1, C1, E1 / B2, C2, E2 + two thermal pads).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual PNP low-saturation switching applications.

Compared with DMT3020LSDQ and ZXTP2012ZTA, ZXTD1M832TA uniquely combines dual-channel integration, −140 mV saturation, and MLP832 thermal performance-enabling compact, high-efficiency designs where channel matching and thermal co-location are essential.

Availability

ZXTD1M832TA is available at Aetrix Electronics and suitable for DC-DC converter FET drivers, USB-C power delivery switches, and brushed DC motor H-bridges requiring stable component supply and guaranteed long-term lifecycle support.

Supply support for ZXTD1M832TA 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

Diodes Incorporated acquired Zetex plc in 2008, integrating its high-performance analog and discrete portfolio into a global semiconductor supplier focused on power management, signal integrity, and discrete solutions.

ZXTD1M832TA belongs to Zetex's MPPS™ (Miniature Package Power Solutions) family, engineered specifically for space-constrained, high-efficiency power conversion and switching applications demanding ultra-low saturation and thermally robust packaging.

FAQ

What is the maximum allowable PCB copper area for optimal thermal performance?

The lowest R_θJA of 41.7°C/W is achieved with 85 cm² of 2 oz copper, yielding 2.4 W max continuous power per device at T_A = 25°C. Smaller areas increase thermal resistance linearly: 10 cm² yields R_θJA = 73.5°C/W (1.7 W), and 8 cm² yields 51°C/W (1.95 W). Minimum copper must match exposed pad dimensions per MLP832 outline.

Can ZXTD1M832TA be used in parallel configurations across both transistors?

Yes-the dual-die construction shares a common thermal paddle, and electrical parameters (V_CE(sat), h_FE) are matched per datasheet test conditions. Parallel operation is validated for combined −8 A loads when base drive is scaled proportionally and PCB copper is ≥10 cm² per device to maintain R_θJA ≤ 73.5°C/W.

Is the MLP832 package compatible with standard reflow profiles?

Yes-MLP832 meets IPC/JEDEC J-STD-020D moisture sensitivity level 1 and is qualified for peak reflow temperatures up to 260°C. The 0.9 mm height and 0.65 mm pitch require stencil aperture reduction to 80% for optimal solder paste release, and thermal pad soldering must use ≥50% open area to prevent voiding.

Does ZXTD1M832TA support pulsed current beyond its −4 A continuous rating?

Yes-absolute maximum I_CM is −12 A for pulse widths ≤100 µs at ≤2% duty cycle. At −8 A, safe operating area data confirms 1 ms pulses are supported with V_CE ≤ −6 V. Pulse capability is limited by junction temperature rise, not bond wire fusing, and requires thermal derating per transient impedance curves in the datasheet.