Diodes Incorporated DIMD10A-7

Overview

DIMD10A-7 from Diodes Incorporated is a dual pre-biased transistor array integrating one 500mA PNP (Tr1) and one 100mA NPN (Tr2) transistor in a single SC-74R package, with built-in biasing resistors (R1 = 0.1kΩ, R2 = 10kΩ), qualified to AEC-Q101 for automotive power management circuits such as LED driver current control and load switching in body electronics modules.

For engineers reviewing the DIMD10A-7 datasheet, DIMD10A-7 pinout, DIMD10A-7 application, or DIMD10A-7 equivalent, key selection considerations include its dual-polarity output capability, integrated resistor network eliminating external bias components, thermal derating behavior up to +150°C junction temperature, and compliance with lead-free and halogen-free manufacturing standards.

Technical Context

The DIMD10A-7 implements two independent bipolar transistors on a single epitaxial planar die: Tr1 (PNP) supports −500mA continuous collector current with V_CEO = −50V and V_CE(SAT) ≤ −0.3V at −100mA; Tr2 (NPN) delivers 100mA I_C, V_CEO = 50V, and h_FE = 100–600 at I_C = 1mA. Both sections share common thermal limits and operate within −55°C to +150°C.

Its internal resistor network (R1 = 100Ω on Tr1 base, R2 = 10kΩ on Tr2 base) enables direct logic-level drive without external biasing-Tr1 activates with input voltage ≤ −1.5V (V_I(ON)), while Tr2 switches at V_I ≥ 0.7V. Maximum power dissipation is 200mW per transistor, not exceeding 300mW total.

Key Specifications

Pinout & Package

Package: SC-74R - 6-pin molded plastic case (UL 94V-0), 0.015g weight, matte tin-plated copper leadframe, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual pre-biased transistor applications.

Compared with NSVDIMD10A-7, the DIMD10A-7 offers identical performance but lacks extended automotive traceability documentation; versus UMX10NTN, it provides higher voltage margin and double the PNP current capacity-critical for 24V load switching.

Availability

DIMD10A-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, LED backlight drivers, and embedded power sequencing requiring stable component supply despite its obsolete status.

Supply support for DIMD10A-7 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 is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The DIMD10A-7 belongs to Diodes' Automotive Pre-Biased Transistor (PBT) product line, engineered specifically for space- and cost-constrained automotive subsystems requiring reliable, integrated switching with minimal external components.

FAQ

Is DIMD10A-7 still in production?

No-Diodes Incorporated officially discontinued DIMD10A-7 as of July 2021 (DS30391 Rev. 6-4). However, Aetrix Electronics maintains legacy inventory and supports last-time-buy programs with full traceability and extended warranty coverage for active production lines.

Can DIMD10A-7 replace discrete transistors in new designs?

Yes, provided the design accommodates its fixed internal resistor values (100Ω/10kΩ) and thermal limits. It reduces PCB area by ~40% versus discrete equivalents and eliminates resistor placement errors-but requires validation of V_CE(SAT) and gain stability under actual load conditions.

What is the maximum safe operating temperature for DIMD10A-7?

The junction temperature must not exceed +150°C. At +75°C ambient, full rated current is supported; above that, derating follows the curve in Figure 1: power dissipation drops linearly to zero at +150°C ambient, assuming no heatsink.

Does DIMD10A-7 support PWM switching?

Yes-both transistors exhibit typical f_T > 200MHz (Tr1) and >250MHz (Tr2), enabling clean 100kHz PWM operation with <100ns rise/fall times. Layout must minimize parasitic inductance on collector traces to avoid voltage overshoot during turn-off.