Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. 2PB1219AS,115

Name: 2PB1219AS,115
Brand: Nexperia USA Inc.
SKU: 2PB1219AS,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 2PB1219AS,115

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: SC-70, SOT-323

Datasheet:: 2PB1219AS,115.pdf

Description:: TRANS PNP 50V 0.5A SOT-323

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:5,681

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

2PB1219AS,115 from Nexperia is a PNP general-purpose bipolar junction transistor in SOT323 (SC-70) package, rated for −50 V V_CEO, −500 mA I_C, and 170–340 h_FE at −150 mA/−10 V. It delivers low V_CEsat (≤ −600 mV) and operates up to 150 °C junction temperature, commonly used in low-power switching circuits in consumer power management modules.

For engineers reviewing the 2PB1219AS,115 datasheet, 2PB1219AS,115 pinout, 2PB1219AS,115 application, or 2PB1219AS,115 equivalent, key selection criteria include verified PNP polarity, SOT323 footprint compatibility, DC current gain range (170–340), saturation voltage under −300 mA/−30 mA drive, and thermal resistance (625 K/W).

Technical Context

This device functions as a medium-current PNP switch with fixed-emitter configuration, supporting linear amplification and saturated switching modes. Its h_FE binning (AS grade) ensures minimum DC current gain of 170 at −150 mA/−10 V, and transition frequency reaches 140 MHz under −50 mA/−10 V conditions.

Designed for surface-mount assembly on compact PCBs, it uses standard SOT323 thermal pad layout per JEDEC SC-70. Absolute maximum ratings include −60 V V_CBO, −5 V V_EBO, and 200 mW P_tot at T_amb ≤ 25 °C - all defined per IEC 60134 limiting values system.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−50 V: Maximum collector-emitter voltage before breakdown in open-base configuration.
I_C (DC)	−500 mA: Continuous collector current rating defining safe steady-state switching capacity.
h_FE	170–340: DC current gain range at −150 mA/−10 V, enabling predictable base drive sizing.
V_CEsat	≤ −600 mV: Collector-emitter saturation voltage at −300 mA/−30 mA, minimizing conduction loss.
f_T	140 MHz: Transition frequency at −50 mA/−10 V, indicating usable bandwidth for RF-coupled preamp stages.
R_{th j-a}	625 K/W: Junction-to-ambient thermal resistance under standard SOT323 mounting, guiding heatsinking decisions.
T_j max	+150 °C: Maximum allowable junction temperature, setting upper limit for ambient + power dissipation design.

Pinout & Package

Package: SOT323 (SC-70), plastic surface-mounted, 3-lead package per JEDEC standard; dimensions: 2.2 mm × 1.35 mm × 0.95 mm (L × W × H), 0.65 mm lead pitch.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control terminal for forward-biased PNP operation; requires negative bias relative to emitter to enable conduction.
2	Emitter	Current source terminal in PNP topology; connected to higher potential rail in typical high-side switch configuration.
3	Collector	Current sink terminal; carries load current to ground or lower-potential node when transistor is active.

Key Features

Feature	Design Value
High DC current gain bin	AS grade guarantees h_FE ≥ 170 at −150 mA/−10 V, reducing required base drive current by ~30% vs. AR grade.
Low saturation voltage	V_CEsat ≤ −600 mV at −300 mA/−30 mA enables <180 mW conduction loss in 5 V logic-level switches.
SOT323 footprint	Standardized 0.65 mm pitch SC-70 outline allows drop-in replacement in space-constrained portable PCB layouts.
High f_T	140 MHz transition frequency supports stable operation in audio preamplifier and low-noise signal conditioning stages.
Wide temperature range	Specified operation from −65 °C to +150 °C supports deployment in automotive cabin and industrial control enclosures.

Applications

LED Driver Circuit

Microcontroller I/O Interface

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V microcontroller GPIO pins via common-emitter switch.

IC Role / Device Role / Timing Role: PNP switch controlling LED anode connection to supply rail; base driven low by MCU output.

Use Value: Low V_CEsat ensures >95% LED forward voltage utilization; h_FE ≥ 170 permits 120 µA base current for full saturation.

Use Scenario: Level-shifting 1.8 V logic outputs to interface with 5 V peripheral enable lines.

IC Role / Device Role / Timing Role: Inverting level translator using emitter-follower or common-emitter configuration.

Use Value: Verified −5 V V_EBO rating prevents damage during 1.8 V input transitions; fast f_T avoids timing skew.

Power Supply Enable Switch

Low-Power Sensor Biasing

Use Scenario: Enabling/disabling 3.3 V LDO output in battery-powered IoT sensor nodes.

IC Role / Device Role / Timing Role: High-side PNP pass switch controlled by system controller to gate main power rail.

Use Value: −500 mA I_C rating supports up to 300 mA load; 625 K/W R_{th j-a} allows thermal margin without heatsink at 100 mW dissipation.

Use Scenario: Providing stable bias current to analog temperature sensor ICs in wearable devices.

IC Role / Device Role / Timing Role: Constant-current source configured with emitter resistor and base voltage reference.

Use Value: Tight h_FE bin (170–340) reduces current variation across production units; low ICBO (<100 nA) minimizes drift at 85 °C.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT3906LT1G	Lower h_FE (100–300), same SOT23 package, −40 V V_CEO, −200 mA I_C.	Not suitable for >200 mA loads; requires larger base drive due to lower gain bin.	Select when cost sensitivity outweighs current capability and gain consistency.
BC807-40,115	Same SOT323 package, −45 V V_CEO, −500 mA I_C, h_FE 250–630 (wider spread), higher V_CEsat (≤ −700 mV).	Higher gain variability increases base resistor tolerance requirements; slightly higher conduction loss.	Choose when wider h_FE range is acceptable and legacy BC807 design reuse is prioritized.

Compared with MMBT3906LT1G, 2PB1219AS,115 offers 70% higher guaranteed h_FE and 10 V higher V_CEO; versus BC807-40,115, it provides tighter h_FE binning and 100 mV lower V_CEsat, improving efficiency in precision biasing.

Availability

2PB1219AS,115 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller I/O interfaces, power supply enable switches, and low-power sensor biasing requiring stable component supply and consistent PNP transistor performance.

Supply support for 2PB1219AS,115 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, logic, and PowerMOS semiconductors, spun off from NXP's Standard Products division in 2017, with manufacturing and R&D centers across Asia, Europe, and the Americas.

The 2PB1219AS,115 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for reliable low-voltage switching and amplification in cost-sensitive consumer, computing, and industrial applications.

FAQ

Is 2PB1219AS,115 pin-compatible with SOT323-packaged NPN transistors like 2PD1820A?

No - while 2PD1820A is the NPN complement, its pinout is reversed: emitter and collector terminals are swapped relative to 2PB1219AS,115. The base remains pin 1, but pin 2 is collector (not emitter) and pin 3 is emitter (not collector) in the NPN version. Direct substitution requires PCB layout revision.

What is the maximum allowable power dissipation at 85 °C ambient temperature?

At T_amb = 85 °C, derated power dissipation is 120 mW, calculated using P_tot(T_amb) = P_tot(25 °C) × [1 − (T_amb − 25)/R_{th j-a} × (T_jmax − 25)] = 200 mW × [1 − (60)/(625 × 125)] ≈ 120 mW. This assumes no PCB copper area enhancement.

Does 2PB1219AS,115 support pulsed operation beyond its DC current rating?

Yes - peak collector current I_CM is rated at −1 A for pulse widths ≤ 300 μs and duty cycle ≤ 2%, per datasheet note 1. This enables short-duration surge handling in motor commutation or relay driving, provided average power stays within 200 mW derating limits.

How does the AS grade differ electrically from AQ and AR variants of 2PB1219A?

The AS grade specifies h_FE = 170–340 at −150 mA/−10 V, versus 85–170 (AQ) and 120–240 (AR). All share identical V_CEO, V_CEsat, and f_T specs, but AS provides highest minimum gain and highest f_T (140 MHz), making it optimal for low-base-drive and higher-frequency applications.

2PB1219AS,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SC-70, SOT-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 500 mA

Voltage - Collector Emitter Breakdown (Max):: 50 V

Vce Saturation (Max) @ Ib, Ic:: 600mV @ 30mA, 300mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 170 @ 150mA, 10V

Power - Max:: 200 mW

Frequency - Transition:: 140MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-323

2PB1219AS,115 FAQ

1.How can I place an order for 2PB1219AS,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2PB1219AS,115 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 2PB1219AS,115 reliable?

The price and inventory of 2PB1219AS,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PB1219AS,115 is usually 5 days.

3.What payment methods are accepted for 2PB1219AS,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PB1219AS,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2PB1219AS,115?

2PB1219AS,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2PB1219AS,115 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 2PB1219AS,115?

For technical support, including 2PB1219AS,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PB1219AS,115 requirements.

6.How does Aetrix verify that 2PB1219AS,115 is sourced from the original manufacturer or authorized distributors?

All 2PB1219AS,115 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 2PB1219AS,115 meets industry standards.

7.What is the process for return or replacement of 2PB1219AS,115?

All 2PB1219AS,115 units undergo pre-shipment inspection (PSI). If there is an issue with 2PB1219AS,115, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 2PB1219AS,115 part is unused and in its original packaging.

Return procedure for 2PB1219AS,115:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…