Diodes Incorporated DDTA123JE-7-F

Overview

DDTA123JE-7-F from Diodes Incorporated is a PNP pre-biased small-signal transistor in SOT523 package, featuring integrated bias resistors R1 = 2.2 kΩ and R2 = 47 kΩ (R1 ≠ R2), −50 V V_CEO, −100 mA I_O, and AEC-Q101 qualification for automotive-grade reliability. It functions as a digitally controlled switch in low-power logic interface and load control circuits.

For engineers reviewing the DDTA123JE-7-F datasheet, DDTA123JE-7-F pinout, DDTA123JE-7-F application, or DDTA123JE-7-F equivalent, this page delivers verified electrical parameters, validated SOT523 terminal mapping, automotive-grade thermal performance data, and direct-fit alternatives with documented resistor ratio and gain differences.

Technical Context

This device integrates two on-die resistors (R1 = 2.2 kΩ, R2 = 47 kΩ) to configure base biasing for predictable turn-on/turn-off behavior without external components. Its PNP topology enables high-side switching with logic-level input compatibility down to −0.5 V V_IN(OFF).

Rated for −50 V collector-emitter voltage and −100 mA output current, it operates across −55 °C to +150 °C with 833 °C/W junction-to-ambient thermal resistance on FR4 PCB. DC current gain (h_FE) is 80 at V_CE = −5 V and I_C = −10 mA.

Key Specifications

Pinout & Package

Package: SOT523 - ultra-small surface-mount plastic case (1.60 mm × 1.60 mm × 0.75 mm), moisture sensitivity level 1, matte tin-plated leads, RoHS- and halogen-free "Green" construction.

Key Features

Applications

Equivalent & Alternatives

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

Compared with DDTA123YE-7-F and DDTA143ZE-7-F, DDTA123JE-7-F uniquely balances noise immunity (via high R2), moderate input current (−3.8 mA), and stable h_FE = 80-making it optimal for general-purpose automotive and industrial switching where reliability and design simplicity are prioritized over speed or ultra-low I_L.

Availability

DDTA123JE-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor interfaces, LED indicator drivers, and USB power management requiring stable component supply and AEC-Q101 traceability.

Supply support for DDTA123JE-7-F 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, specializing in high-reliability, energy-efficient components for automotive, industrial, and consumer markets.

This part belongs to the DDTA (R1≠R2) series of pre-biased transistors, engineered to simplify digital interface design by integrating asymmetric bias resistors-targeting cost-sensitive, space-constrained applications needing guaranteed switching behavior without external tuning.

FAQ

What is the maximum operating temperature for DDTA123JE-7-F?

The DDTA123JE-7-F is rated for operation from −55 °C to +150 °C. Its thermal resistance (R_θJA) is 833 °C/W on FR4 PCB with minimum pad layout, meaning junction temperature remains within safe limits up to +85 °C ambient at full 150 mW dissipation. Derating is required above that ambient temperature per Figure 1 in DS30318 Rev. 9-2.

Can DDTA123JE-7-F replace a standard PNP transistor like BC807?

No-it cannot serve as a drop-in replacement for discrete PNP transistors such as BC807 because it includes internal R1 (2.2 kΩ) and R2 (47 kΩ) bias resistors. Using it without accounting for those resistors will cause incorrect biasing. It replaces both the transistor and its two base resistors in digital-switch applications, not the bare transistor alone.

Is DDTA123JE-7-F pin-compatible with other SOT523 pre-biased transistors?

Yes-DDTA123JE-7-F uses standard SOT523 pinout (Emitter–Base–Collector on pins 1–2–3), matching all Diodes Incorporated DDTA/DDTC series and industry-standard equivalents. Mechanical compatibility is confirmed by Diodes' package outline SOT523 document, with identical dimensions and solder pad recommendations.

What does the "-7-F" suffix indicate in DDTA123JE-7-F?

The "-7-F" suffix denotes tape-and-reel packaging: "-7" specifies a 7-inch reel, and "-F" indicates Diodes Incorporated's "Green" (halogen- and antimony-free) RoHS-compliant finish. The part ships in 3,000-unit reels with 8 mm tape width, per ordering information in DS30318 Rev. 9-2.