Diodes Incorporated DSS45160FDB-7

Overview

DSS45160FDB-7 from Diodes Incorporated is a complementary NPN/PNP bipolar transistor pair in a single U-DFN2020-6 package, designed for bidirectional switching and load control. It delivers 60V V_CEO, ±1A continuous collector current, and ultra-low saturation voltages (V_CE(sat) ≤ 220 mV for NPN, ≤ −340 mV for PNP) at rated current-enabling high-efficiency gate driving and power switching in compact DC-DC and motor control circuits.

For engineers reviewing the DSS45160FDB-7 datasheet, DSS45160FDB-7 pinout, DSS45160FDB-7 application, or DSS45160FDB-7 equivalent, key selection criteria include complementary polarity support, thermal performance (R_θJA = 51°C/W with 28 mm² copper), low-profile 0.6 mm height, RoHS-compliant NiPdAu terminations, and validated safe operating area for pulsed and DC loads up to 2.47 W.

Technical Context

This dual-transistor device integrates matched NPN and PNP silicon die in one thermally optimized U-DFN2020-6 package with exposed collector pads. Each transistor supports independent biasing and operates with defined breakdown limits (±60 V V_CEO, ±7 V V_EBO) and gain ranges (h_FE = 70–430 depending on I_C).

Thermal design leverages dual-side copper mounting: R_θJA drops from 308°C/W (single-sided PCB) to 51°C/W (28 mm × 28 mm 2 oz Cu), enabling sustained 1 A operation without forced cooling. Transient thermal impedance curves confirm robust pulse handling up to 100 ms at full rated current.

Key Specifications

Pinout & Package

U-DFN2020-6 (Type B) package: 2.0 mm × 2.0 mm × 0.6 mm body with six terminals and dual exposed collector pads (C1, C2) for thermal and electrical connection. Molded green compound, NiPdAu plating, JEDEC Level 1 moisture sensitivity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar complementary bipolar transistor applications.

Compared with DMT6009LPS-13 and ZXTDA6717ZTA, DSS45160FDB-7 uniquely balances bipolar linearity, ultra-low profile, and high thermal conductivity-making it optimal for space-constrained, medium-power, mixed-signal systems requiring precise current control and robust DC conduction.

Availability

DSS45160FDB-7 is available at Aetrix Electronics and suitable for motor control, USB power delivery switching, LED driver current sinking, and industrial sensor excitation requiring stable component supply, consistent parametric performance, and long-term lifecycle availability.

Supply support for DSS45160FDB-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, manufacturing, and sales operations across Asia, Europe, and North America.

This device belongs to Diodes' high-efficiency power transistor family, engineered specifically for compact, thermally demanding load-switching and gate-driving applications in industrial automation, computing peripherals, and consumer power electronics.

FAQ

What is the maximum continuous power dissipation for DSS45160FDB-7 under standard PCB conditions?

The maximum continuous power dissipation is 2.47 W, achievable only when both exposed collector pads (C1 and C2) are soldered to a 28 mm × 28 mm (8 cm²) area of 2 oz copper on a FR4 PCB. With standard single-sided 1.6 mm FR4 layout, the limit drops to 405 mW due to higher R_θJA (308°C/W). Derating curves in the datasheet specify linear reduction above +25°C ambient.

Can DSS45160FDB-7 be used in linear (analog) mode, not just switching?

Yes-its specified V_CE(sat), h_FE, and V_BE(on) parameters are characterized under pulsed and DC conditions, and its SOA curves include DC operation. The device supports linear current regulation up to 1 A with proper heatsinking, making it suitable for precision current sinks, active loads, and analog amplifier stages where bipolar characteristics are preferred over MOSFETs.

How are the exposed collector pads (C1 and C2) electrically isolated in the U-DFN2020-6 package?

C1 and C2 are electrically isolated terminals connected respectively to the NPN and PNP collector regions. They share no internal metal connection but sit on a common thermally conductive die attach pad. Layout must maintain ≥0.2 mm clearance between their solder lands to prevent shorting; recommended pad dimensions per AP02001 ensure isolation while maximizing thermal transfer.

Does DSS45160FDB-7 require base current limiting resistors in typical switching applications?

Yes-base current must be limited to avoid exceeding the absolute maximum I_B of ±300 mA. For 1 A collector current, the NPN requires ≥100 mA base drive (h_FE min ≈ 10 at I_C = 1 A), so a 33 Ω resistor from a 3.3 V GPIO yields ~100 mA. Similarly, the PNP needs ≥100 mA sink capability; open-drain or actively pulled-down drivers are recommended to ensure clean turn-off.