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

Nexperia USA Inc. PZT2907A/ZLX

Name: PZT2907A/ZLX
Brand: Nexperia USA Inc.
SKU: PZT2907A/ZLX
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PZT2907A/ZLX

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-261-4, TO-261AA

Datasheet:: PZT2907A/ZLX.pdf

Description:: TRANS PNP 60V 0.6A SOT-223

Quantity:: RFQ Add To RFQ list

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Product details

Overview

PZT2907A/ZLX from Nexperia is a PNP bipolar junction transistor (BJT) designed for medium-power switching and linear amplification, featuring V_CEO = −60 V, I_C = −600 mA DC, and V_CE(sat) = −400 mV at I_C = −150 mA / I_B = −15 mA. It is housed in an SOT223 surface-mount package with dual collector terminals and used in DC-DC converter control stages, relay drivers, and load-switching circuits.

For engineers reviewing the PZT2907A/ZLX datasheet, PZT2907A/ZLX pinout, PZT2907A/ZLX application, or PZT2907A/ZLX equivalent, key selection criteria include guaranteed h_FE ≥ 100 at I_C = −10 mA, thermal resistance R_{th j-a} = 106 K/W on standard PCB, and verified switching times (t_off = 365 ns, t_s = 300 ns) under pulsed conditions.

Technical Context

This PNP BJT operates with emitter-grounded configuration and supports both active-region amplification and saturated switching. Its h_FE remains stable across I_C = −0.1 mA to −500 mA, with minimum gain of 100 at I_C = −10 mA and 50 at I_C = −500 mA, enabling predictable current control in feedback loops and driver stages.

Thermal design is enabled by the SOT223's exposed collector pad (pins 2 & 4), delivering R_{th j-s} = 25 K/W to solder point and supporting continuous operation up to T_j = 150 °C. Switching performance is characterized using standardized pulse test conditions (t_p ≤ 300 µs, duty δ ≤ 0.02).

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−60 V - Maximum allowable collector-emitter voltage with base open; defines safe blocking capability in high-side switch configurations.
I_C (DC)	−600 mA - Continuous collector current rating; sets maximum steady-state load drive capacity without derating.
h_FE	100–300 - DC current gain at I_C = −150 mA; determines required base drive current for saturation in switching applications.
V_CE(sat)	−400 mV - Collector-emitter saturation voltage at I_C = −150 mA / I_B = −15 mA; directly impacts conduction loss and power dissipation.
t_off	365 ns - Total turn-off time (10%–90%); constrains maximum usable switching frequency in PWM circuits.
R_{th j-a}	106 K/W - Junction-to-ambient thermal resistance on standard 1 cm² copper pad; enables thermal budget calculation for ambient temperatures up to +125 °C.

Pinout & Package

Package: SOT223 (SC-73), plastic surface-mount package with exposed collector pad for enhanced thermal conduction. Dimensions per IEC/JEDEC outline 97-02-28; 4-terminal construction with pins 2 and 4 internally connected to the collector.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node; requires current-limited drive to achieve specified V_CE(sat) and switching speed.
2 & 4	Collector	Common high-current output terminal; electrically tied and thermally coupled to the large copper mounting pad.
3	Emiter	Reference node for PNP operation; typically connected to system supply rail in high-side switch topologies.

Key Features

Feature	Design Value
High DC current capability	Rated for −600 mA continuous collector current, enabling direct drive of solenoids, LEDs, and small relays without external buffering.
Low saturation voltage	V_CE(sat) ≤ −400 mV at moderate load ensures <100 mW conduction loss at 150 mA, reducing thermal stress in compact layouts.
Stable gain over wide current range	h_FE ≥ 100 from I_C = −1 mA to −150 mA supports consistent base drive design across operating conditions.
Fast switching performance	Turn-off time of 365 ns and storage time of 300 ns allow reliable operation up to ~500 kHz in hard-switched DC-DC controllers.

Applications

DC-DC Converter Switch

Industrial Relay Driver

Use Scenario: High-side switch in non-synchronous buck converter feedback path controlling gate of external MOSFET.

IC Role / Device Role / Timing Role: PNP BJT configured as level-shifting saturated switch, turning on/off based on error amplifier output.

Use Value: Low V_CE(sat) minimizes voltage drop across switch, preserving regulation accuracy and reducing self-heating during continuous conduction mode.

Use Scenario: Driving 24 VDC industrial relay coil requiring 40 mA hold current and 80 mA pull-in surge.

IC Role / Device Role / Timing Role: Medium-power PNP switch interfacing microcontroller GPIO to relay coil, with base resistor limiting IB to −5 mA.

Use Value: Guaranteed h_FE ≥ 100 ensures full saturation at low base drive, eliminating risk of partial turn-on and contact chatter.

LED Current Sink

Linear Voltage Regulator Pass Element

Use Scenario: Constant-current sink for high-brightness white LED string in signage backlighting.

IC Role / Device Role / Timing Role: Emitter-follower configured transistor regulating LED current via sense resistor feedback.

Use Value: Stable h_FE and low V_BE(sat) (≤ −1.3 V) enable precise current setting with minimal headroom voltage overhead.

Use Scenario: Pass element in adjustable linear regulator supplying 5 V @ 300 mA to analog sensor circuitry.

IC Role / Device Role / Timing Role: PNP series pass transistor operating in active region, controlled by error amplifier to maintain output voltage.

Use Value: R_{th j-a} = 106 K/W allows operation at full load without heatsink in ambient ≤ 60 °C, simplifying mechanical design.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
MMBT2907A	SOT-23 package; lower I_C = −600 mA rated but derated to −200 mA typical; R_{th j-a} ≈ 300 K/W.	Not suitable for >200 mA continuous loads or thermally constrained PCBs.	Select when board space is critical and power dissipation <150 mW.
ZTX951	SOT-89 package; higher V_CEO = −100 V; h_FE = 100–400; R_{th j-a} = 75 K/W.	Better suited for higher-voltage industrial controls where 60 V margin is insufficient.	Select when extended voltage headroom or improved thermal performance is required.

Compared with MMBT2907A, PZT2907A/ZLX delivers 3.7× lower thermal resistance and validated 600 mA DC capability; versus ZTX951, it offers cost-effective qualification for 60 V systems while maintaining identical gain behavior and switching timing.

Availability

PZT2907A/ZLX is available at Aetrix Electronics and suitable for DC-DC converter designs, industrial relay interfaces, LED current regulation, and linear regulator pass elements requiring stable component supply and long-term manufacturability.

Supply support for PZT2907A/ZLX 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, automotive-qualified, and industrial-grade components.

The PZT2907A/ZLX belongs to Nexperia's general-purpose bipolar transistor product line, engineered for robustness in switching and amplification roles across automotive body electronics, industrial PLC I/O modules, and consumer power supplies.

FAQ

Is PZT2907A/ZLX pin-compatible with the NPN PZT2222A?

No - PZT2907A/ZLX is a PNP device with base on pin 1, emitter on pin 3, and collectors on pins 2 & 4; PZT2222A is NPN with opposite polarity and different pin assignment (emitter on pin 1, collector on pin 2). They are functional complements, not pin-for-pin replacements.

What is the maximum allowable PCB copper area for optimal thermal performance?

The datasheet specifies thermal characterization on a 1 cm² single-sided tin-plated copper pad connected to pins 2 & 4. Increasing pad area beyond 1 cm² yields diminishing returns; doubling pad size reduces R_{th j-a} by only ~15%, per Nexperia's SOT223 thermal guidelines.

Does PZT2907A/ZLX meet AEC-Q101 requirements for automotive use?

No - PZT2907A/ZLX is qualified to industrial grade standards only. Nexperia offers the PZT2907A-Q as the AEC-Q101 qualified variant; the /ZLX suffix denotes standard industrial version without automotive qualification testing or traceability.

Can PZT2907A/ZLX be used in avalanche mode?

No - the device is not rated or characterized for avalanche energy handling. Absolute maximum ratings specify V_CBO = −60 V and V_CEO = −60 V with no secondary breakdown data or SOA curves provided; operation beyond these limits risks immediate failure.

PZT2907A/ZLX Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Transistor Type:: PNP

Current - Collector (Ic) (Max):: 600 mA

Voltage - Collector Emitter Breakdown (Max):: 60 V

Vce Saturation (Max) @ Ib, Ic:: 1.6V @ 50mA, 500mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 100 @ 150mA, 10V

Power - Max:: 1.15 W

Frequency - Transition:: 200MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

PZT2907A/ZLX FAQ

1.How can I place an order for PZT2907A/ZLX through Aetrix?

Please submit a Request for Quotation (RFQ) for PZT2907A/ZLX 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 PZT2907A/ZLX reliable?

The price and inventory of PZT2907A/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PZT2907A/ZLX is usually 5 days.

3.What payment methods are accepted for PZT2907A/ZLX?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PZT2907A/ZLX transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PZT2907A/ZLX?

PZT2907A/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PZT2907A/ZLX 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 PZT2907A/ZLX?

For technical support, including PZT2907A/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PZT2907A/ZLX requirements.

6.How does Aetrix verify that PZT2907A/ZLX is sourced from the original manufacturer or authorized distributors?

All PZT2907A/ZLX 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 PZT2907A/ZLX meets industry standards.

7.What is the process for return or replacement of PZT2907A/ZLX?

All PZT2907A/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PZT2907A/ZLX, 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 PZT2907A/ZLX part is unused and in its original packaging.

Return procedure for PZT2907A/ZLX:

1.Submit a request within 90 days.

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

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