Diodes Incorporated DSS5220V-7

Overview

DSS5220V from Diodes Incorporated is a low-V_CE(SAT) PNP bipolar junction transistor in SOT-563 package, rated for -20 V V_CEO, -2 A I_C, and 600 mW power dissipation at T_A = 25°C. It delivers high h_FE (220 at I_C = -1 mA) and ultra-low saturation voltage (as low as -80 mV at I_C = -100 mA, I_B = -1 mA), enabling efficient switching in compact DC-DC load switches and LED current sinks.

For engineers reviewing the DSS5220V datasheet, DSS5220V pinout, DSS5220V application, or DSS5220V equivalent, key selection criteria include verified V_CE(SAT) performance at high I_C, thermal resistance (R_θJA = 208°C/W), SOT-563 footprint compatibility, and complementary pairing with DSS4220V for push-pull designs.

Technical Context

This PNP transistor uses epitaxial planar die construction to achieve stable gain and low saturation voltage across temperature. Its V_CEO = -20 V and V_EBO = -5 V support operation in low-voltage rail-sensing and level-shifted control circuits where emitter-follower or common-emitter switching is required.

With f_T = 150 MHz and switching times (t_on = 60 ns, t_off = 167 ns), it supports medium-speed digital and PWM-driven applications. The SOT-563 package enables automated assembly while maintaining thermal performance via optimized pad layout per Diodes' recommended footprint.

Key Specifications

Pinout & Package

SOT-563 is a 6-pin ultra-small surface-mount package with dual emitter-collector configuration (pins 1/2/5/6 = emitter, pin 3 = collector, pin 4 = base), optimized for space-constrained PCB layouts and automated placement.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP transistor switching applications.

Compared with DSS4220V and MMBT4403, the DSS5220V uniquely combines 2 A current capability, sub-100 mV V_CE(SAT), and SOT-563 miniaturization-making it optimal for space- and efficiency-critical PNP switching where thermal budget and board area are constrained.

Availability

DSS5220V-7 is available at Aetrix Electronics and suitable for LED current regulation, DC-DC load switching, complementary driver stages, and rail-sensing voltage monitoring requiring stable component supply and RoHS-compliant packaging.

Supply support for DSS5220V-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 DSS5220V belongs to Diodes' low-V_CE(SAT) PNP transistor product line, engineered specifically for high-efficiency, space-constrained switching in portable, automotive, and industrial power management systems.

FAQ

What is the maximum continuous collector current for DSS5220V-7?

The DSS5220V-7 is rated for -2 A continuous collector current at T_A = 25°C with proper PCB thermal relief. Derating is required above 25°C ambient per Fig. 1 in the datasheet, reaching zero allowable dissipation at ~125°C ambient due to its 600 mW P_D rating and 208°C/W R_θJA.

Is DSS5220V-7 pin-compatible with standard SOT-23 or SOT-363 transistors?

No - DSS5220V-7 uses the SOT-563 package, which has six pins and a unique 1.6 × 1.2 mm outline with dual emitter terminals (pins 1/2/5/6). It is not mechanically or electrically pin-compatible with SOT-23 (3-pin) or SOT-363 (6-pin but different pin assignment and footprint).

Can DSS5220V-7 be used in linear amplifier applications?

While it exhibits f_T = 150 MHz and usable h_FE across current ranges, the DSS5220V is optimized for switching - evidenced by its low V_CE(SAT), fast t_off, and thermal design for pulsed operation. Linear use is possible at low quiescent currents but not recommended for precision analog amplification due to lack of specified linearity parameters.

What does the "-7" suffix indicate in DSS5220V-7?

The "-7" suffix denotes tape-and-reel packaging: 3000 units per reel, compliant with EIA-481-D standards. This format is intended for automated SMT placement and is the standard shipping option for volume production orders.