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

Nexperia USA Inc. 2PB709ASL,235

Name: 2PB709ASL,235
Brand: Nexperia USA Inc.
SKU: 2PB709ASL,235
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 2PB709ASL,235

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: 2PB709ASL,235.pdf

Description:: TRANS PNP 45V 0.1A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

2PB709ASL,235 from Nexperia is a PNP general-purpose bipolar junction transistor in SOT23 package, rated for −45 V V_CEO, −100 mA I_C, and DC current gain (h_FE) of 290–460 at −2 mA collector current. It operates across −55 °C to +150 °C ambient temperature and delivers −500 mV V_CE(sat) at −100 mA/−10 mA drive, suited for low-power switching in portable battery management circuits.

For engineers reviewing the 2PB709ASL,235 datasheet, 2PB709ASL,235 pinout, 2PB709ASL,235 application, or 2PB709ASL,235 equivalent, key selection criteria include verified PNP polarity, SOT23 footprint compatibility, absolute maximum ratings compliance (−45 V V_CEO, −100 mA I_C), thermal resistance (500 K/W), and h_FE binning consistency across production lots.

Technical Context

This discrete PNP BJT functions as a current-controlled switch or small-signal amplifier with fixed emitter-base and collector-base junction structures. Its operation relies on base-emitter forward biasing to enable collector current flow, with saturation achieved under −10 mA base drive at −100 mA collector load.

The device adheres to IEC 60134 Absolute Maximum Ratings, including −45 V V_CBO/V_CEO, −6 V V_EBO, and 250 mW P_tot at T_amb ≤ 25 °C on FR4 PCB. Thermal performance is defined by R_th(j-a) = 500 K/W under standard mounting conditions.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−45 V: Maximum safe collector-emitter voltage with base open; defines high-side switch blocking capability
I_C	−100 mA: Continuous DC collector current rating; sets upper limit for load switching in low-power logic interfaces
h_FE	290–460 at V_CE = −10 V, I_C = −2 mA: Confirmed DC current gain range enabling predictable base drive sizing
V_CE(sat)	−500 mV at I_C = −100 mA, I_B = −10 mA: Low saturation voltage reduces conduction loss in active switching
f_T	80 MHz at V_CE = −10 V, I_C = −1 mA: Transition frequency supports audio-frequency amplification and fast digital switching
R_th(j-a)	500 K/W: Junction-to-ambient thermal resistance on standard FR4 PCB; determines power derating above 25 °C ambient

Pinout & Package

SOT23 plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body, tin-plated copper leads, optimized for reflow soldering per Fig. 2 footprint.

Pin/Terminal	Circuit Role	Design Meaning
1	Base (B)	Current-controlled input node; requires −10 mA drive for full saturation at −100 mA collector load
2	Emitter (E)	Common reference terminal for PNP configuration; connected to higher potential rail in high-side switch topology
3	Collector (C)	Output current path; sinks up to −100 mA when base is biased, with −45 V reverse-blocking capability

Key Features

Feature	Design Value
Two h_FE gain bins	Guaranteed 290–460 range enables consistent base resistor selection across production batches
Low V_CE(sat)	−500 mV at rated current minimizes power dissipation in saturated switching applications
High V_CEO rating	−45 V supports use in 24 V industrial control rails with safety margin against transients
Extended temperature range	−55 °C to +150 °C operation allows deployment in automotive under-hood and industrial motor-drive environments

Applications

LED Driver Circuit

Microcontroller GPIO Expander

Use Scenario: Driving 20 mA indicator LEDs from 3.3 V microcontroller outputs via level-shifting interface.

IC Role / Device Role / Timing Role: PNP switch controlling LED anode connection to supply rail; base driven by MCU GPIO through current-limiting resistor.

Use Value: −500 mV V_CE(sat) ensures minimal voltage drop across transistor, preserving LED forward voltage margin.

Use Scenario: Extending digital output capability of resource-constrained MCUs in sensor node designs.

IC Role / Device Role / Timing Role: Discrete logic-level translator enabling high-side drive of external peripherals not supported by native GPIO voltage/current limits.

Use Value: Verified h_FE range allows precise base resistor calculation for reliable turn-on with 5 mA MCU output drive.

Low-Voltage Power Sequencing

Signal Inversion Stage

Use Scenario: Enabling controlled power-up sequence of sub-circuits in battery-powered IoT devices.

IC Role / Device Role / Timing Role: High-side switch regulating 3.3 V domain activation based on system controller signal timing.

Use Value: −45 V V_CEO provides robustness against supply rail overshoot during hot-plug events.

Use Scenario: Converting active-high logic signals to active-low outputs for legacy interface compatibility.

IC Role / Device Role / Timing Role: Inverting amplifier stage with fixed gain and predictable propagation delay in analog-digital boundary circuits.

Use Value: 80 MHz f_T ensures clean inversion of signals up to 10 MHz without phase distortion.

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
BC807-40,215	Same SOT23 package; h_FE = 250–630 at −100 mA, −500 mV V_CE(sat); −45 V V_CEO	Broader h_FE spread increases base resistor tolerance sensitivity	Select when wider gain variation is acceptable and cost optimization is prioritized
MMBT3906LT1G	SOT23 package; h_FE = 100–300 at −10 mA; −40 V V_CEO; −200 mA I_C	Lower voltage rating and narrower gain range reduce design margin in 24 V systems	Choose only for 12 V or lower supply rails where peak current exceeds −100 mA

Compared with BC807-40,215 and MMBT3906LT1G, the 2PB709ASL,235 offers tighter h_FE binning (290–460) and identical −45 V rating, delivering more predictable base drive requirements and superior voltage headroom in industrial 24 V control applications.

Availability

2PB709ASL,235 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO expansion, low-voltage power sequencing, and signal inversion stages requiring stable component supply and consistent parametric performance.

Supply support for 2PB709ASL,235 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 efficiency, delivering high-performance, reliable discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.

The 2PB709ASL,235 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for cost-sensitive, space-constrained applications requiring dependable DC switching and amplification with guaranteed gain consistency.

FAQ

Is the 2PB709ASL,235 suitable for automotive applications?

No. The 2PB709ASL,235 is explicitly marked as non-automotive qualified in its revision history. It lacks AEC-Q101 qualification and has not undergone automotive-grade stress testing. For automotive use, Nexperia recommends the −Q qualified variants such as 2PB709AQ series, which meet extended temperature, reliability, and failure rate requirements.

What is the maximum allowable continuous power dissipation at 70 °C ambient?

At 70 °C ambient, the 2PB709ASL,235 must be derated from its 250 mW maximum at 25 °C. Using R_th(j-a) = 500 K/W, junction temperature rise is 22.5 K per 45 mW. To maintain T_j ≤ 150 °C, maximum power drops to approximately 150 mW - confirmed by linear derating curves in Section 8 of the official datasheet.

Can the 2PB709ASL,235 replace an NPN transistor in the same circuit?

No. The 2PB709ASL,235 is a PNP transistor with opposite polarity and complementary biasing requirements. Replacing an NPN device would require inverting the supply connections, reversing current direction, and redesigning base drive logic - it is not a drop-in substitute. Circuit topology must be adapted for high-side switching versus low-side sinking.

Does the marking code 'SL%' indicate RoHS compliance?

Yes. All 2PB709ASL,235 units carry the 'SL%' top-side marking and conform to EU RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Nexperia confirms lead-free terminations, halogen-free molding compound, and full substance declaration compliance in its Product Compliance Statements dated October 2024.

2PB709ASL,235 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 100 mA

Voltage - Collector Emitter Breakdown (Max):: 45 V

Vce Saturation (Max) @ Ib, Ic:: 500mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 10nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 290 @ 2mA, 10V

Power - Max:: 250 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

2PB709ASL,235 FAQ

1.How can I place an order for 2PB709ASL,235 through Aetrix?

Please submit a Request for Quotation (RFQ) for 2PB709ASL,235 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 2PB709ASL,235 reliable?

The price and inventory of 2PB709ASL,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PB709ASL,235 is usually 5 days.

3.What payment methods are accepted for 2PB709ASL,235?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PB709ASL,235 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 2PB709ASL,235?

2PB709ASL,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 2PB709ASL,235 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 2PB709ASL,235?

For technical support, including 2PB709ASL,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PB709ASL,235 requirements.

6.How does Aetrix verify that 2PB709ASL,235 is sourced from the original manufacturer or authorized distributors?

All 2PB709ASL,235 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 2PB709ASL,235 meets industry standards.

7.What is the process for return or replacement of 2PB709ASL,235?

All 2PB709ASL,235 units undergo pre-shipment inspection (PSI). If there is an issue with 2PB709ASL,235, 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 2PB709ASL,235 part is unused and in its original packaging.

Return procedure for 2PB709ASL,235:

1.Submit a request within 90 days.

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

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