Nexperia USA Inc. PMBT2222AYSX

Overview

PMBT2222AYSX from Nexperia is a double NPN general-purpose switching transistor in SOT363-3 (SC-88/TSSOP6) package, rated for 40 V V_CEO, 600 mA I_C, and AEC-Q101 qualified for automotive use. It integrates two matched NPN transistors on one die for compact dual-switching functions in space-constrained PCBs, commonly used in LED driver stages and logic-level signal routing.

For engineers reviewing the PMBT2222AYSX datasheet, PMBT2222AYSX pinout, PMBT2222AYSX application, or PMBT2222AYSX equivalent, key selection criteria include per-transistor h_FE (100–300 at I_C = 150 mA), V_CE(sat) ≤ 1.2 V at I_C/I_B = 10, thermal resistance R_th(j-a) down to 227 K/W with enhanced pad layout, and dual-transistor isolation in a single 2.2 × 1.35 mm footprint.

Technical Context

This device implements two independent NPN bipolar junction transistors sharing no internal connection-pinning confirms full electrical separation between TR1 (pins 1–2–6) and TR2 (pins 4–5–3). Each transistor supports DC switching and linear amplification with guaranteed h_FE ≥ 40 at I_C = 500 mA and V_CE = 10 V.

Switching performance is characterized by t_on ≤ 35 ns and t_off ≤ 250 ns under defined test conditions (I_Bon/I_Boff = ±15 mA, I_C = 150 mA), with f_T = 300 MHz ensuring suitability for medium-frequency digital and analog signal paths up to ~100 MHz.

Key Specifications

Pinout & Package

SOT363-3 (TSSOP6) is a 6-pin, surface-mount plastic package measuring 2.2 mm × 1.35 mm × 0.95 mm with gull-wing leads and exposed thermal pad-compatible footprint. Pin 1 is marked by index notch; device orientation follows standard top-view labeling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual NPN switching applications.

Compared with BC847BDW1T1G and DMN2004DWK-7, PMBT2222AYSX uniquely balances AEC-Q101 compliance, bipolar linearity, and 40 V/600 mA switching capability in a thermally optimized SOT363-3 package-making it the preferred choice for automotive and industrial dual-switch designs requiring both robustness and analog flexibility.

Availability

PMBT2222AYSX is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC output modules, and medical diagnostic signal conditioning requiring stable component supply across extended temperature ranges (−55 °C to +150 °C).

Supply support for PMBT2222AYSX 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

Nexperia is a global semiconductor expert specializing in high-volume, high-reliability discrete and logic devices, with core competencies in automotive, industrial, and mobile power management.

The PMBT2222AYSX belongs to Nexperia's AEC-Q101-qualified general-purpose transistor product line, engineered specifically for dual-switching applications where space, thermal performance, and automotive-grade reliability are jointly critical.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum peak base current is 200 mA per transistor (single pulse, t_p ≤ 1 ms), but continuous DC base current must be limited to ensure I_C ≤ 600 mA and thermal limits are not exceeded. For sustained 600 mA collector current, typical I_B = 60 mA (I_C/I_B = 10) yields V_CE(sat) ≤ 1.2 V and remains within P_tot = 300 mW per device limits at T_amb = 25 °C.

Can PMBT2222AYSX be used in linear amplification mode?

Yes-its specified h_FE range (100–300 at I_C = 150 mA) and low noise figure (NF = 4 dB at 1 kHz) confirm suitability for low-noise preamplifier stages. Operation requires stable biasing with V_CE ≥ 1 V and I_C ≤ 500 mA to maintain linearity and avoid thermal runaway, per the characteristics curves in Figures 4–7 of the datasheet.

How does the SOT363-3 package differ from standard SOT363?

The SOT363-3 variant features tighter dimensional tolerances and refined lead geometry optimized for automated reflow soldering yield, particularly in high-density automotive PCBs. Key differences include reduced lead pitch variation (±0.05 mm), improved coplanarity (<0.1 mm), and enhanced thermal pad definition-enabling reliable 227 K/W R_th(j-a) performance with 1 cm² copper area, unlike legacy SOT363.

Is there cross-conduction risk between the two transistors?

No-PMBT2222AYSX contains two physically and electrically isolated NPN transistors with no shared terminals or substrate coupling. Pin mapping (TR1: pins 1–2–6; TR2: pins 4–5–3) and characterization data confirm complete functional independence, verified by zero crosstalk in switching tests and separate h_FE/V_CE(sat) measurements per transistor.