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Nexperia USA Inc. PUMB3HX
- Part No.:
- PUMB3HX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PUMB3HX.pdf
- Description:
- PUMB3HX
- Quantity:
- Payment:
- Shipping:
Inventory:4,468
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Product details
Overview
PUMB3HX from Nexperia is a PNP/PNP resistor-equipped double transistor (RET) in SOT363 (TSSOP6) package, rated for −50 V VCEO, −100 mA output current per transistor, with built-in 4.7 kΩ base bias resistor R1 and open R2 configuration; used for digital switching and IC input control in space-constrained industrial and consumer PCBs.
For engineers reviewing the PUMB3HX datasheet, PUMB3HX pinout, PUMB3HX application, or PUMB3HX equivalent, this page delivers verified electrical parameters, thermal derating behavior, dual-transistor biasing topology, and validated alternatives for discrete logic-level interface design.
Technical Context
This dual PNP RET integrates two matched high-temperature PNP transistors with dedicated base resistors-R1 = 4.7 kΩ on each transistor's base path and R2 unconnected-enabling direct TTL/CMOS-compatible switching without external bias components. It operates up to 175 °C junction temperature and supports −50 V collector-emitter breakdown per channel.
The device exhibits typical hFE ≥ 200 at −1 mA IC, VCE = −5 V, and VCE(sat) ≤ −100 mV at −10 mA IC/−0.5 mA IB, confirming robust saturation performance for low-voltage load switching in battery-powered and automotive-adjacent systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V per transistor - defines maximum safe voltage across collector-emitter under open-base condition |
| IO | −100 mA per transistor - continuous DC output current capability without thermal shutdown |
| R1 | 4.7 kΩ (typ), 3.3–6.1 kΩ (min–max) - integrated base bias resistor enabling single-resistor drive from logic outputs |
| Tj(max) | 175 °C - enables operation in under-hood or enclosed industrial environments without forced cooling |
| Ptot (per device) | 360 mW at Tamb ≤ 25 °C - total power dissipation limit before thermal derating begins |
| Rth(j-a) | 417 K/W (per device, FR4 PCB) - quantifies thermal resistance from junction to ambient for layout thermal modeling |
| fT | 180 MHz (typ) - transition frequency indicating usable bandwidth for fast digital switching (e.g., <5 ns rise time) |
Pinout & Package
Package: SOT363 (TSSOP6), 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, surface-mount plastic package optimized for automated assembly and high-density routing.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND1 | Emiter connection of TR1 - common reference node for first transistor; must be tied to system ground or local return |
| 2 | I1 | Base input of TR1 - driven directly by logic-level signal; internal R1 pulls base toward GND1 |
| 3 | O2 | Collector output of TR2 - active-low switching node; sinks current when TR2 is biased on |
| 4 | GND2 | Emiter connection of TR2 - independent ground return for second transistor; allows dual isolated switching paths |
| 5 | I2 | Base input of TR2 - independently controllable input; shares same R1 bias topology as I1 |
| 6 | O1 | Collector output of TR1 - primary active-low output; complements O2 for dual-channel load control |
Key Features
| Feature | Design Value |
|---|---|
| Dual PNP RET topology | Two fully independent PNP transistors with dedicated base resistors - eliminates need for 4 external bias resistors in dual-switch designs |
| High-temperature operation | Junction rating up to 175 °C - supports deployment in engine control units, power supplies, and sealed industrial enclosures |
| Logic-compatible input threshold | VI(on) = −0.88 V (typ) at −10 mA IC - ensures reliable turn-on from 1.8 V/3.3 V CMOS outputs without level shifting |
| Low saturation voltage | VCE(sat) ≤ −100 mV at −10 mA/−0.5 mA - minimizes conduction loss and self-heating during sustained switching |
| Space-saving footprint | SOT363 package occupies 2.63 mm² PCB area - reduces board real estate vs. two discrete SOT23-3 transistors + 4 resistors |
Applications
| LED Driver Interface | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving multiple indicator LEDs from a microcontroller with limited GPIO current drive capability. IC Role / Device Role / Timing Role: Dual active-low switch providing 100 mA sink per LED channel with integrated base biasing. Use Value: Eliminates four external resistors and two discrete transistors, reducing BOM count by 6 parts and saving >3 mm² PCB area. |
Use Scenario: Extending low-voltage I/O capability of an ARM Cortex-M0+ MCU in a smart sensor node. IC Role / Device Role / Timing Role: Level-translating and current-boosting buffer for interfacing 1.8 V logic to 5 V peripheral enable lines. Use Value: Enables direct connection to 5 V peripherals without external level shifters; VI(off) = −500 mV ensures noise-immune off-state. |
| Industrial Pushbutton Debounce | Power Rail Sequencing Control |
Use Scenario: Debouncing mechanical pushbuttons feeding into a PLC input module operating at −24 V supply. IC Role / Device Role / Timing Role: Dual-channel Schmitt-trigger-compatible input conditioner with hysteresis provided by internal R1 network. Use Value: Provides clean, bounce-free signals with no external RC networks; −50 V VCEO withstands inductive kickback from relay coils. |
Use Scenario: Controlling power-up sequence of dual-rail FPGA core and I/O supplies in a test equipment platform. IC Role / Device Role / Timing Role: Precision-delayed enable switch using RC timing on I1/I2 inputs to stagger 1.2 V and 3.3 V regulator EN pins. Use Value: Enables accurate sequencing within ±5 µs jitter using only one passive RC per channel - no dedicated sequencer IC required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-PNP switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PUMD6HX | NPN/PNP RET configuration - TR1 is NPN, TR2 is PNP; R1 = 10 kΩ, R2 = 10 kΩ | Supports mixed-signal level translation (e.g., 3.3 V → −5 V) but lacks dual-PNP symmetry for parallel sinking | Select when asymmetric switching or complementary logic polarity is required; not drop-in for PUMB3HX dual-sink layouts |
| BC857BDW1T3G | Discrete dual PNP transistor array (no built-in resistors); requires external 4.7 kΩ base resistors per channel | Higher layout flexibility and bias tuning, but increases component count and placement complexity | Choose when precise hFE matching or adjustable base current is critical; adds 4 passives and 2 placement steps |
Compared with PUMD6HX and BC857BDW1T3G, PUMB3HX delivers lowest BOM count and smallest footprint for dual active-low switching, while maintaining identical thermal and voltage ratings - ideal for cost- and space-sensitive digital interface designs.
Availability
PUMB3HX is available at Aetrix Electronics and suitable for LED driver interfaces, microcontroller GPIO expansion, industrial pushbutton debounce, and power rail sequencing control requiring stable component supply and long-term production continuity.
Supply support for PUMB3HX 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 technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
PUMB3HX belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to reduce component count and simplify digital interface circuitry in high-volume, space-constrained applications.
FAQ
What is the function of the open R2 terminal in PUMB3HX?
R2 is internally unconnected (open) per transistor channel, meaning only R1 (4.7 kΩ) is integrated between base and emitter. This configuration provides single-resistor biasing for standard active-low switching, eliminating need for pull-down resistors while retaining full control over base current via the I1/I2 inputs.
Can PUMB3HX drive a 5 V relay coil directly?
Yes - with VCEO = −50 V and IO = −100 mA per channel, PUMB3HX can safely sink relay coil current up to 100 mA at 5 V. Its VCE(sat) ≤ −100 mV ensures <0.5% power loss in the transistor, minimizing heat generation during continuous activation.
How does thermal performance compare between per-transistor and per-device power ratings?
PUMB3HX specifies 240 mW per transistor (480 mW theoretical max) but 360 mW per device - reflecting shared thermal path on the die. Derating follows the per-device curve (Fig. 1), where power drops linearly above 25 °C ambient, reaching ~180 mW at 75 °C ambient on FR4 PCB.
Is PUMB3HX qualified for automotive applications?
No - PUMB3HX is not AEC-Q101 qualified and carries no automotive grade designation in its datasheet or ordering information. It is intended for industrial, consumer, and computing applications; use in automotive systems requires additional qualification testing and is not supported by Nexperia's warranty or reliability data.
PUMB3HX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Transistor Type:
- 2 PNP Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 4.7kOhms
- Resistor - Emitter Base (R2):
- -
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 200 @ 1mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 500µA, 10mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 180MHz
- Power - Max:
- 240mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PUMB3HX FAQ
1.How can I place an order for PUMB3HX through Aetrix?
Please submit a Request for Quotation (RFQ) for PUMB3HX 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 PUMB3HX reliable?
The price and inventory of PUMB3HX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMB3HX is usually 5 days.
3.What payment methods are accepted for PUMB3HX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMB3HX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUMB3HX?
PUMB3HX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUMB3HX 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 PUMB3HX?
For technical support, including PUMB3HX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMB3HX requirements.
6.How does Aetrix verify that PUMB3HX is sourced from the original manufacturer or authorized distributors?
All PUMB3HX 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 PUMB3HX meets industry standards.
7.What is the process for return or replacement of PUMB3HX?
All PUMB3HX units undergo pre-shipment inspection (PSI). If there is an issue with PUMB3HX, 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 PUMB3HX part is unused and in its original packaging.
Return procedure for PUMB3HX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PUMB3HX Tags
-
SMUN5311DW1T1G
onsemi
-
UMH9NTN
Rohm Semiconductor
-
PUMH13,115
Nexperia USA Inc.
-
PUMD3-QX
Nexperia USA Inc.
-
PUMD2,115
Nexperia USA Inc.
-
RN4987FE,LF(CT
Toshiba Semiconductor and Storage
-
PUMD12,115
Nexperia USA Inc.
-
PUMD9,115
Nexperia USA Inc.
-
PUMH9,115
Nexperia USA Inc.
-
PUMD3,115
Nexperia USA Inc.
-
DCX114EU-7-F
Diodes Incorporated
-
PUMD13,115
Nexperia USA Inc.
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