Nexperia USA Inc. PMBT4403YSX

Overview

PMBT4403YS from Nexperia is a double PNP bipolar junction transistor in SOT363-3 (TSSOP6) package, rated for −40 V V_CEO, −600 mA I_C, and AEC-Q101 qualified for automotive use. It delivers DC current gain (h_FE) of 100–300 at −2 V V_CE/−150 mA I_C, with V_CE(sat) ≤ −750 mV at −500 mA/−50 mA drive, enabling compact dual-channel switching in space-constrained PCB layouts.

For engineers reviewing the PMBT4403YS datasheet, PMBT4403YS pinout, PMBT4403YS application, or PMBT4403YS equivalent, this device serves as a verified dual-PNP solution for automotive body control modules, LED driver current sinks, and redundant logic-level translators where thermal efficiency, footprint minimization, and automotive-grade reliability are critical selection criteria.

Technical Context

This double PNP transistor integrates two independent high-gain PNP BJTs in a single TSSOP6 package, sharing no internal connection between devices. Each transistor supports continuous collector currents up to −600 mA and peak pulses to −800 mA, with base-emitter saturation voltage ≤ −1.3 V under heavy drive conditions.

Thermal performance is defined for two mounting configurations: standard FR4 footprint (R_th(j-a) = 500 K/W) and enhanced pad layout (R_th(j-a) = 227 K/W), enabling design flexibility across cost-sensitive and thermally demanding applications without derating penalties.

Key Specifications

Pinout & Package

SOT363-3 (TSSOP6) is a 6-pin, surface-mount plastic package with 0.65 mm lead pitch, 2.2 mm × 1.35 mm body size, and exposed thermal pad-compatible footprint. Pin 1 is marked by a dot or notch; device orientation follows transparent top-view labeling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC847BPDW1T1G and DMN3028LSD-13, the PMBT4403YS uniquely combines automotive qualification, −600 mA current capability, and true dual-PNP architecture-enabling direct replacement of discrete TO-92 pairs while meeting AEC transient immunity and thermal derating requirements.

Availability

PMBT4403YS is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control, and industrial sensor interface designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for PMBT4403YS 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 focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.

The PMBT4403YS belongs to Nexperia's AEC-Q101-qualified small-signal transistor portfolio, engineered specifically for space-constrained, thermally demanding automotive subsystems requiring dual-channel switching without compromising robustness or manufacturability.

FAQ

What is the maximum allowable junction temperature for PMBT4403YS?

The absolute maximum junction temperature (T_j) is 150 °C, as defined in IEC 60134 limiting values. Operation above this threshold risks permanent degradation of h_FE and increased leakage. Derating curves in Figure 1 show that full 550 mW power dissipation is only permissible below 25 °C ambient when using the enhanced thermal pad layout.

Can PMBT4403YS be used in linear amplification mode?

Yes-the device is explicitly rated for linear amplification per its General Description and exhibits stable h_FE from −100 µA to −500 mA collector current (Figure 4). Its V_BE vs. I_C characteristics (Figure 6) and low output capacitance (C_c = 8.5 pF) support broadband analog gain stages up to 100 kHz without phase shift concerns.

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

The SOT363-3 variant features tighter dimensional tolerances and optimized solder land patterns per Figures 13–14, including refined pad widths (0.5 mm for pins 1–4, 0.6 mm for pins 5–6) and 2.65 mm × 2.35 mm reflow footprint. This revision improves placement yield and thermal transfer consistency compared to legacy SOT363 outlines.

Is there cross-reference data between PMBT4403YS and its NPN complement PMBT4401YS?

Yes-both share identical SOT363-3 packaging, pinout, thermal specs, and AEC-Q101 qualification. Key electrical differences include polarity reversal (V_CEO = +40 V for PMBT4401YS), complementary h_FE curves, and inverted saturation voltages. They are designed as matched pairs for push-pull or complementary switching topologies.