Nexperia USA Inc. 2PB709ARW,115

Overview

2PB709ARW from Nexperia is a PNP general-purpose bipolar junction transistor in SC-70 (SOT323) package, designed for low-power switching and linear amplification. It delivers DC current gain (h_FE) of 210–340 at I_C = −2 mA, V_CE = −10 V; V_CEsat ≤ −500 mV at I_C = −100 mA/I_B = −10 mA; f_T = 70 MHz; and maximum collector current of −100 mA. Used in portable audio bias networks and LED driver stages.

For engineers reviewing the 2PB709ARW datasheet, 2PB709ARW pinout, 2PB709ARW application, or 2PB709ARW equivalent, key selection criteria include verified h_FE range, guaranteed V_CEsat under high-current saturation, thermal resistance (R_{th j-a} = 625 K/W), SC-70 footprint compatibility, and PNP complement pairing with 2PD601AW.

Technical Context

This device operates as a silicon PNP BJT with fixed-emitter configuration and base-controlled current amplification. Its design targets discrete signal-level switching where low V_CEsat and stable h_FE across temperature are critical-e.g., level-shifting in 3.3 V logic interfaces or active load control in sensor front-ends.

The SC-70 package enables high-density placement while maintaining thermal performance up to T_j = 150 °C. Absolute maximum ratings include V_CBO = V_CEO = −45 V and V_EB0 = −6 V, supporting operation in battery-powered systems with reverse-polarity protection requirements.

Key Specifications

Pinout & Package

SC-70 (SOT323) plastic surface-mount package: 1.35 mm × 1.15 mm × 0.9 mm body, 0.65 mm lead pitch, 3-terminal configuration with gull-wing leads. Thermal pad not present; solder joint thermal path dominates junction-to-board conduction.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP general-purpose transistor applications.

Compared with MMBT2907A and BC807-25, 2PB709ARW offers optimal balance of SC-70 size, 70 MHz f_T, and −500 mV V_CEsat-making it preferred for space-constrained, battery-operated designs needing reliable low-loss switching below 100 mA.

Availability

2PB709ARW is available at Aetrix Electronics and suitable for portable audio bias networks, LED driver stages, level-shifting interfaces, and reverse-polarity protection circuits requiring stable component supply and consistent h_FE binning.

Supply support for 2PB709ARW 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 discrete semiconductors, formed in 2017 from the former NXP Standard Products division, specializing in high-volume, high-reliability components for automotive, industrial, and consumer markets.

The 2PB709ARW belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-sensitive, space-constrained applications demanding predictable DC gain, low saturation voltage, and robust thermal performance in ultra-small packages.

FAQ

What is the maximum continuous collector current for 2PB709ARW?

The absolute maximum DC collector current (I_C) is −100 mA at T_amb ≤ 25 °C. Operation above this value risks thermal runaway or permanent degradation. Derating is required above 25 °C ambient per the R_{th j-a} = 625 K/W specification; at 70 °C ambient, maximum sustainable I_C drops to approximately −65 mA under free-air conditions.

Is 2PB709ARW pin-compatible with its NPN complement 2PD601AW?

Yes-both devices share identical SC-70 (SOT323) package and pinout: Pin 1 = Base, Pin 2 = Emitter, Pin 3 = Collector. This allows mirrored PCB layout for complementary push-pull or differential pair designs without footprint redesign, simplifying dual-transistor routing and thermal symmetry.

Does 2PB709ARW require external base resistors in switching applications?

Yes-base current must be actively limited to achieve target collector current and avoid overdriving. For example, to saturate at I_C = −100 mA with h_FE ≥ 210, minimum I_B = −476 µA is needed; with 3.3 V drive and 0.7 V V_BE, a 5.3 kΩ series resistor ensures safe, repeatable turn-on without exceeding I_BM limits.

Can 2PB709ARW be used in linear amplification mode?

Yes-it is characterized for small-signal amplification with h_FE specified at I_C = −2 mA and V_CE = −10 V. Its f_T = 70 MHz supports audio-band gain stages, but thermal stability requires emitter degeneration and proper bias point selection to avoid distortion from h_FE variation across temperature.