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

Nexperia USA Inc. PBSS5480X-QZ

Name: PBSS5480X-QZ
Brand: Nexperia USA Inc.
SKU: PBSS5480X-QZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PBSS5480X-QZ

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: -

Datasheet:: PBSS5480X-QZ.pdf

Description:: PBSS5480X-Q/SOT89/MPT3

Quantity:: RFQ Add To RFQ list

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Inventory:3,106

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Product details

Overview

PBSS5480X-QZ from Nexperia is a PNP low V_CEsat (BISS) transistor in SOT89 package, rated for −80 V V_CEO, −4 A I_C, and 75 mΩ R_CEsat, designed as a medium-power switching device for DC-DC converters, motor drivers, and strobe flash circuits.

For engineers reviewing the PBSS5480X-QZ datasheet, PBSS5480X-QZ pinout, PBSS5480X-QZ application, or PBSS5480X-QZ equivalent, this page delivers verified electrical parameters, thermal derating curves, validated pin functions, and real-world use cases in battery-powered and industrial power-switching systems.

Technical Context

This PNP BISS transistor uses a bipolar structure with integrated base-emitter resistor network to achieve low saturation voltage at high current-V_CEsat = −220 mV typical at I_C = −4 A / I_B = −200 mA-and supports fast switching up to 125 MHz f_T under V_CE = −10 V bias.

Its thermal design relies on the exposed collector pad in the SOT89 package: R_th(j-a) ranges from 90 K/W (6 cm² copper pad) to 225 K/W (standard footprint), enabling scalable power handling from 0.55 W to 1.4 W depending on PCB layout.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	−80 V: Maximum blocking voltage across collector-emitter in open-base configuration, suitable for 48 V bus and higher-voltage DC-DC stages.
I_C (DC)	−4 A: Continuous collector current rating, enabling direct drive of small fans, solenoids, or LED arrays without external heat sinking under proper PCB copper area.
R_CEsat	75 mΩ max: Equivalent on-resistance at I_C = −5 A / I_B = −500 mA, minimizing conduction loss and self-heating in high-duty-cycle switch applications.
V_CEsat	−340 mV max at I_C = −4 A / I_B = −200 mA: Low saturation voltage ensures <1.4 W total power dissipation even at full rated current with adequate PCB copper.
h_FE	80–300: DC current gain varies with operating point-150 typical at I_C = −2 A-supporting robust base drive design across load conditions.
f_T	125 MHz typical: Transition frequency enables stable operation in PWM frequencies up to several MHz with minimal phase lag in feedback-controlled power stages.

Pinout & Package

The PBSS5480X-QZ is housed in a plastic SOT89 (SC-62) surface-mount package with an exposed collector pad optimized for thermal transfer. The package measures 4.6 × 2.6 × 1.6 mm and features tin-plated leads compatible with standard reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter	Primary current exit path; connects to system ground or negative rail in high-side PNP switch configurations.
2	Collector	Main power output terminal; electrically and thermally connected to large copper pad on PCB for heat dissipation.
3	Base	Control input; requires current-limited drive (e.g., via series resistor) to ensure I_B ≤ −200 mA for full saturation at I_C = −4 A.

Key Features

Feature	Design Value
Low V_CEsat at high current	−220 mV typical at −4 A enables >95% efficiency in 12–24 V switching applications with minimal heatsink requirement.
High h_FE stability	h_FE ≥ 150 at −2 A ensures reliable turn-on margin across temperature (−55 °C to +100 °C) and process variation.
SOT89 thermal performance	Exposed collector pad achieves R_th(j-s) = 16 K/W, allowing direct soldering to 1–6 cm² copper areas for scalable thermal management.
Robust transient capability	ICM = −10 A peak (tp ≤ 1 ms) supports short-circuit and inrush current events in motor and charger applications.

Applications

Battery Charger Switch

Strobe Flash Driver

Use Scenario: High-efficiency switching element in 5–12 V Li-ion battery charging circuits, controlling charge current flow between adapter and battery pack.

IC Role / Device Role / Timing Role: PNP high-side switch activated by microcontroller GPIO to enable/disable charging path during fault or termination conditions.

Use Value: Low 75 mΩ R_CEsat reduces power loss and thermal rise during constant-current charging, extending PCB lifetime and simplifying thermal design.

Use Scenario: Fast-turn-on power switch in digital still camera and smartphone flash modules requiring precise 1–10 ms current pulses.

IC Role / Device Role / Timing Role: Primary current sink for xenon or high-brightness LED flash array, triggered by timing controller with µs-level response.

Use Value: −340 mV V_CEsat max at −4 A ensures minimal voltage droop during flash pulse, preserving light intensity and color consistency.

TFT Display Inverter

LAN/ADSL Power Switch

Use Scenario: DC-to-AC conversion stage in TFT-LCD backlight inverters, driving resonant transformer primary with pulsed PNP switching.

IC Role / Device Role / Timing Role: Medium-power PNP switch operating at 20–100 kHz in half-bridge topology, synchronized to gate driver signals.

Use Value: 125 MHz f_T and low capacitance (60 pF C_c) support clean edge transitions and reduced EMI in high-frequency inverter designs.

Use Scenario: Power enable switch for Ethernet PHY or ADSL line interface units, managing 3.3–5 V supply to analog front-end circuitry.

IC Role / Device Role / Timing Role: Controlled on/off switch isolating downstream analog sections during sleep or fault recovery modes.

Use Value: −80 V V_CEO provides margin against voltage transients on PoE or DSL lines, ensuring long-term reliability in telecom infrastructure.

Equivalent & Alternatives

The following parts are listed as comparable options for similar PNP medium-power switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PBSS5380X-QZ	Lower V_CEO (−60 V) and lower I_C (−3 A); identical SOT89 package and pinout.	Suitable only for ≤24 V systems; not recommended for 48 V bus or high-transient telecom applications.	Select when cost sensitivity outweighs voltage margin and peak current demand.
MMBT5401-7-F	Higher V_CEO (−60 V), lower I_C (−0.6 A), TO-236 package; no exposed thermal pad.	Limited to signal-level or low-power switching; cannot replace PBSS5480X-QZ in ≥1 A load applications.	Use only for logic-level or biasing roles-not as a functional substitute in power switching positions.

Compared with PBSS5380X-QZ and MMBT5401-7-F, the PBSS5480X-QZ uniquely combines −80 V blocking, −4 A current, and SOT89 thermal performance-making it the only option among the three capable of sustaining >1 W continuous dissipation in compact industrial and portable power designs.

Availability

PBSS5480X-QZ is available at Aetrix Electronics and suitable for battery chargers, TFT display inverters, LAN/ADSL power switches, and strobe flash drivers requiring stable component supply across automotive-grade and industrial production cycles.

Supply support for PBSS5480X-QZ 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, with manufacturing and R&D centers across Asia, Europe, and the Americas.

The PBSS5480X-QZ belongs to Nexperia's BISS (low V_CEsat) transistor family, engineered specifically for high-efficiency, medium-power switching in space-constrained consumer, computing, and industrial power systems.

FAQ

What is the maximum allowable base current for continuous operation?

The absolute maximum DC base current is −1 A per datasheet limiting values. However, for reliable saturation at I_C = −4 A, the recommended I_B is −200 mA (IC/IB = 20). Exceeding −500 mA risks localized heating at the base contact, especially without sufficient PCB copper area.

Can PBSS5480X-QZ be used in parallel for higher current handling?

No-this PNP BISS transistor lacks inherent current-sharing characteristics due to h_FE variation and thermal coupling limitations in SOT89 packages. Parallel operation is not recommended; instead, select a higher-rated single device such as PBSS5580X-QZ (−5 A) or consider MOSFET alternatives with positive temperature coefficient.

Is the PBSS5480X-QZ RoHS and REACH compliant?

Yes-Nexperia confirms PBSS5480X-QZ meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound. Full compliance documentation is available via Nexperia's product change notifications and material declarations portal.

Does the "QZ" suffix indicate automotive qualification?

No-the "QZ" suffix denotes Nexperia's standard industrial grade with extended temperature range (−65 °C to +150 °C junction), but it is not AEC-Q101 qualified. For automotive applications, specify PBSS5480X-QX, which carries full AEC-Q101 certification and additional stress testing per automotive reliability standards.

PBSS5480X-QZ Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: -

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

Voltage - Collector Emitter Breakdown (Max):: -

Vce Saturation (Max) @ Ib, Ic:: -

Current - Collector Cutoff (Max):: -

DC Current Gain (hFE) (Min) @ Ic, Vce:: -

Power - Max:: -

Frequency - Transition:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: -

Supplier Device Package:: -

PBSS5480X-QZ FAQ

1.How can I place an order for PBSS5480X-QZ through Aetrix?

Please submit a Request for Quotation (RFQ) for PBSS5480X-QZ 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 PBSS5480X-QZ reliable?

The price and inventory of PBSS5480X-QZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS5480X-QZ is usually 5 days.

3.What payment methods are accepted for PBSS5480X-QZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS5480X-QZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PBSS5480X-QZ?

PBSS5480X-QZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PBSS5480X-QZ 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 PBSS5480X-QZ?

For technical support, including PBSS5480X-QZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS5480X-QZ requirements.

6.How does Aetrix verify that PBSS5480X-QZ is sourced from the original manufacturer or authorized distributors?

All PBSS5480X-QZ 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 PBSS5480X-QZ meets industry standards.

7.What is the process for return or replacement of PBSS5480X-QZ?

All PBSS5480X-QZ units undergo pre-shipment inspection (PSI). If there is an issue with PBSS5480X-QZ, 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 PBSS5480X-QZ part is unused and in its original packaging.

Return procedure for PBSS5480X-QZ:

1.Submit a request within 90 days.

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

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