My Inquiry
My Account
Nexperia USA Inc. PBSS4032PZ-QX
- Part No.:
- PBSS4032PZ-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- TO-261-4, TO-261AA
- Datasheet:
-
PBSS4032PZ-QX.pdf
- Description:
- TRANS PNP 30V 4.4A SOT-223
- Quantity:
- Payment:
- Shipping:
Inventory:3,634
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PBSS4032PZ-QX from Nexperia is a PNP low VCE(sat) Breakthrough In Small Signal (BISS) transistor in SOT223 (SC-73) package, rated for −30 V VCEO, −4.4 A IC, and 58–86 mΩ RCE(sat) at −4 A/−400 mA drive. It delivers high hFE (100 min at −4 A), fast switching (ton = 90 ns, toff = 220 ns), and AEC-Q101 qualification - deployed in automotive DC-DC converters and battery charging circuits.
For engineers reviewing the PBSS4032PZ-QX datasheet, PBSS4032PZ-QX pinout, PBSS4032PZ-QX application, or PBSS4032PZ-QX equivalent, key selection criteria include verified RCE(sat) performance under high-current saturation, thermal resistance on FR4 (75 K/W with 6 cm² collector pad), and validated AEC-Q101 compliance for under-hood power management designs.
Technical Context
This PNP BISS transistor uses optimized epitaxial base and emitter structures to achieve ultra-low saturation resistance while maintaining high current gain at high collector currents. Its dual-collector pin configuration (pins 2 and 4) enables enhanced thermal dissipation and current handling beyond standard SOT223 transistors.
It operates with VBE(sat) as low as −0.99 V at −4 A/−400 mA and supports IC/IB ratios down to 10 for robust saturation control. The device's fT of 130 MHz and low Cc (65 pF) support efficient high-frequency switching in synchronous rectifier and load switch applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −30 V - Maximum safe blocking voltage in open-base configuration, enabling use in 24 V automotive systems with margin. |
| IC | −4.4 A continuous - Sustained DC current capability suitable for high-side load switches and buck converter output stages. |
| RCE(sat) | 58–86 mΩ at −4 A/−400 mA - Directly determines conduction loss (Ploss ≈ I² × R), critical for thermal design in compact PCB layouts. |
| hFE | 60–100 at −4 A - Ensures reliable saturation with modest base drive, reducing gate driver complexity in discrete power stages. |
| toff | 220 ns - Fast turn-off minimizes cross-conduction losses in half-bridge topologies and improves efficiency above 100 kHz. |
| AEC-Q101 | Qualified - Validated for automotive temperature range (−55 °C to +150 °C) and stress tests including HTGB, HTRB, and ESD. |
Pinout & Package
The PBSS4032PZ-QX is housed in an SOT223 (SC-73) plastic surface-mount package with four leads and an integrated heat sink pad on pins 2 and 4 (collectors). The package supports up to 1700 mW power dissipation when mounted on FR4 with a 6 cm² copper collector pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Control input requiring −400 mA for full saturation at −4 A; low VBE(sat) reduces base drive power. |
| 2 | Collector | Main high-current path; electrically tied to pin 4 for parallel current sharing and improved thermal spreading. |
| 3 | Emiter | Reference terminal for PNP operation; connected to system ground or positive rail depending on topology (e.g., high-side switch). |
| 4 | Collector | Second collector terminal - must be connected to same net as pin 2 to enable full rated current and thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Low VCE(sat) | −230 mV typical at −4 A/−400 mA - cuts conduction loss by >40% vs. conventional PNP transistors, directly improving efficiency in battery-powered systems. |
| Dual-collector thermal design | Pins 2 and 4 both serve as collectors - doubles effective copper area for heat transfer, lowering Rth(j-a) to 75 K/W on FR4 with 6 cm² pad. |
| High hFE at high IC | 100 min at −4 A - allows simplified base drive circuitry without Darlington staging, reducing component count and board space. |
| AEC-Q101 qualification | Validated per stress test standard for discrete semiconductors - confirms suitability for automotive power modules, body control units, and ADAS power supplies. |
Applications
| DC-DC Converters | Battery Charging Circuits |
|---|---|
|
Use Scenario: Used as synchronous rectifier or high-side switch in 12 V/24 V automotive buck converters delivering up to 5 A output. IC Role / Device Role / Timing Role: PNP BISS transistor operating in saturation mode during on-state; handles reverse recovery-free conduction with minimal VCE(sat) loss. Use Value: Achieves >94% efficiency at 3 A due to 58 mΩ RCE(sat), reducing heatsink requirements and enabling smaller magnetics. |
Use Scenario: High-side current-limiting switch in USB-C PD and multi-cell Li-ion charger front-ends. IC Role / Device Role / Timing Role: Precision current-controlled PNP switch regulating charge current via base current feedback loop. Use Value: Maintains stable hFE across temperature (−55 °C to +125 °C), ensuring ±2% current accuracy without external sensing resistors. |
| Power Management Units | Automotive Body Electronics |
|
Use Scenario: Load switch for infotainment subsystems and ADAS camera power rails, supporting hot-swap and inrush control. IC Role / Device Role / Timing Role: Controlled PNP switch with fast toff (220 ns) enabling precise sequencing and fault isolation. Use Value: Enables <10 μs response to overcurrent events when paired with comparator-based protection, preventing downstream damage. |
Use Scenario: Window lift motor driver and seat position actuator control in Class A/B vehicles. IC Role / Device Role / Timing Role: Robust PNP switch driving inductive loads with integrated flyback energy handling via VCEO = −30 V rating. Use Value: Withstands load-dump transients up to −35 V (derated) and meets ISO 7637-2 Pulse 5a requirements when used with TVS clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar PNP high-current switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN2222A | VCEO = −40 V, IC = −800 mA, RCE(sat) > 500 mΩ at −500 mA - significantly higher conduction loss and lower current capability. | General-purpose low-power switching only; unsuitable for >1 A DC-DC or automotive loads. | Select only for non-automotive, low-current (<500 mA), cost-sensitive prototypes where thermal performance is secondary. |
| MMBT3906 | VCEO = −40 V, IC = −200 mA, hFE drops to <30 at −100 mA - lacks high-current gain stability and AEC-Q101 qualification. | Signal-level logic inversion or biasing; not rated for power switching or automotive environments. | Use solely for sub-100 mA signal conditioning; avoid in any power path or temperature-critical application. |
Compared with PN2222A and MMBT3906, PBSS4032PZ-QX provides 5.5× higher continuous current, 8× lower RCE(sat), and automotive-grade reliability - making it the only viable option for production-grade 4 A PNP switching in constrained thermal environments.
Availability
PBSS4032PZ-QX is available at Aetrix Electronics and suitable for automotive power management, battery charging circuits, and DC-DC conversion requiring stable component supply with AEC-Q101 assurance and SOT223 thermal scalability.
Supply support for PBSS4032PZ-QX 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 high-volume, high-reliability essential semiconductors - serving automotive, industrial, and consumer markets with discrete, logic, and MOSFET solutions.
PBSS4032PZ-QX belongs to Nexperia's BISS transistor product line, engineered specifically for high-efficiency, high-current PNP switching in space-constrained automotive and portable power applications where low VCE(sat) and thermal robustness are mandatory.
FAQ
What is the maximum allowable base current for continuous operation?
The absolute maximum base current (IB) is −1 A per datasheet Table 5. However, for reliable continuous operation at −4.4 A collector current, the recommended base drive is −400 mA - matching the test condition for RCE(sat) and hFE specifications. Exceeding −400 mA offers diminishing returns in saturation improvement and risks localized heating at the base-emitter junction.
Can pins 2 and 4 be used independently?
No - pins 2 and 4 are internally connected as a single collector node. Using them separately violates the device's thermal and electrical design, invalidates Rth(j-a) ratings, and may cause current imbalance and premature failure. Both pins must be soldered to the same copper pour with adequate thermal relief.
Is PBSS4032PZ-QX compatible with lead-free reflow profiles?
Yes - the SOT223 package is qualified for standard JEDEC J-STD-020D lead-free reflow, with peak temperature up to 260 °C. The recommended footprint (Figure 16) specifies 6.15 mm × 3.85 mm solder land dimensions and 0.3 mm stencil aperture for optimal wetting and void control on FR4 boards.
How does its AEC-Q101 qualification differ from standard industrial grade?
AEC-Q101 certification requires passing 13 stress tests including HTGB (1000 hrs at 150 °C), HTRB (1000 hrs at 150 °C/VCEO), and ESD (HBM ≥2 kV), all performed on 100% production lots. This exceeds industrial-grade testing scope and validates long-term reliability in automotive under-hood environments where ambient temperatures reach +125 °C and thermal cycling is severe.
PBSS4032PZ-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-261-4, TO-261AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- PNP
- Current - Collector (Ic) (Max):
- 4.4 A
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 200mA, 4A
- Current - Collector Cutoff (Max):
- 100nA
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 1A, 2V
- Power - Max:
- 700 mW
- Frequency - Transition:
- 130MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-223
PBSS4032PZ-QX FAQ
1.How can I place an order for PBSS4032PZ-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PBSS4032PZ-QX 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 PBSS4032PZ-QX reliable?
The price and inventory of PBSS4032PZ-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PBSS4032PZ-QX is usually 5 days.
3.What payment methods are accepted for PBSS4032PZ-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PBSS4032PZ-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PBSS4032PZ-QX?
PBSS4032PZ-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PBSS4032PZ-QX 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 PBSS4032PZ-QX?
For technical support, including PBSS4032PZ-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PBSS4032PZ-QX requirements.
6.How does Aetrix verify that PBSS4032PZ-QX is sourced from the original manufacturer or authorized distributors?
All PBSS4032PZ-QX 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 PBSS4032PZ-QX meets industry standards.
7.What is the process for return or replacement of PBSS4032PZ-QX?
All PBSS4032PZ-QX units undergo pre-shipment inspection (PSI). If there is an issue with PBSS4032PZ-QX, 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 PBSS4032PZ-QX part is unused and in its original packaging.
Return procedure for PBSS4032PZ-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PBSS4032PZ-QX Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
-
MMBT2222ALT1G
onsemi
Tech Hub
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.
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…
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…
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…
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 …
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…
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…
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…
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…
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…
