Nexperia USA Inc. PMST2369,115

Overview

PMST2369 from Nexperia is an NPN bipolar junction transistor optimized for low-voltage, low-current switching in portable electronics. It features a maximum collector-emitter voltage of 15 V, DC current gain (h_FE) of 40–120 at 10 mA/1 V, and fast switching with turn-on time ≤10 ns and turn-off time ≤20 ns. It is housed in a SOT323 (SC-70) surface-mount package and used in battery-powered signal routing and load control circuits.

For engineers reviewing the PMST2369 datasheet, PMST2369 pinout, PMST2369 application, or PMST2369 equivalent, this page delivers verified electrical parameters, thermal resistance (625 K/W), saturation voltages (V_CE(sat) ≤ 250 mV), cutoff leakage (ICBO ≤ 400 nA), and switching timing data - all critical for discrete BJT selection in space-constrained, high-efficiency designs.

Technical Context

The PMST2369 operates as a general-purpose NPN switch with fixed gain characteristics defined across temperature and bias conditions: h_FE ≥ 20 at −55 °C and ≥ 20 at 100 mA/2 V, ensuring stable drive capability in wide-temperature environments. Its low V_BE(sat) (700–850 mV) and V_CE(sat) (≤250 mV) minimize conduction loss in low-voltage logic-level interfaces.

Designed for FR4 PCB mounting, it exhibits R_{th j-a} = 625 K/W and supports continuous operation up to T_j = 150 °C. Switching performance is characterized using standardized pulse test conditions (t_p ≤ 300 µs, δ ≤ 0.02), with storage time ≤10 ns confirming suitability for >10 MHz digital switching.

Key Specifications

Pinout & Package

The PMST2369 is supplied in a SOT323 (SC-70) plastic surface-mount package measuring 2.2 × 1.35 × 0.95 mm, with gull-wing leads and a 0.65 mm pitch. It is rated for reflow soldering per JEDEC J-STD-020 and supports automated placement.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BC846B,115 and MMBT2222ALT1G, the PMST2369 offers optimal balance of size, speed, and low-voltage performance for compact 3.3 V systems - delivering faster switching than BC846B at lower gain sensitivity and smaller footprint than MMBT2222ALT1G without sacrificing reliability.

Availability

PMST2369 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, portable audio signal routing, and low-power sensor interface applications requiring stable component supply and long-term manufacturability.

Supply support for PMST2369 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 leader in high-volume production of discrete semiconductors, logic devices, and PowerMOS transistors, with roots in Philips and NXP Standard Products.

The PMST2369 belongs to Nexperia's legacy general-purpose BJT portfolio, designed specifically for cost-sensitive, space-constrained consumer and portable electronics requiring reliable, fast-switching NPN transistors in ultra-small packages.

FAQ

Is PMST2369 RoHS compliant and lead-free?

Yes, PMST2369 is RoHS compliant and manufactured with lead-free terminations. Nexperia confirms compliance with Directive 2011/65/EU and subsequent amendments, including exemption 7a for lead in high-melting-temperature type solders. The SOT323 package uses matte tin plating over nickel underplate.

What is the maximum operating junction temperature for PMST2369?

The absolute maximum junction temperature (T_j) for PMST2369 is 150 °C, as specified in the Limiting Values table. Operation above this temperature risks permanent degradation of h_FE and increased leakage. Derating is required above Tamb = 25 °C per the R_{th j-a} = 625 K/W thermal resistance.

Can PMST2369 be used in linear amplification applications?

No - PMST2369 is characterized and qualified exclusively for switching operation. Its h_FE variation across V_CE and I_C, lack of linearity specifications (e.g., distortion, f_T vs. bias), and absence of small-signal AC parameters in the datasheet confirm its intended use as a saturated switch, not an amplifier.

Does PMST2369 have built-in ESD protection?

No, PMST2369 does not include integrated ESD protection diodes. The datasheet specifies no human-body model (HBM) or charged-device model (CDM) ratings. External protection (e.g., series resistors, TVS diodes) is recommended when handling or routing signals in environments with >2 kV HBM risk.