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Nexperia USA Inc. PUMB3HF
- Part No.:
- PUMB3HF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PUMB3HF.pdf
- Description:
- PUMB3HF
- Quantity:
- Payment:
- Shipping:
Inventory:5,714
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Product details
Overview
PUMB3HF 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-circuit R2. It functions as a dual high-temperature switching element in digital logic interface circuits, load control, and IC input conditioning.
For engineers reviewing the PUMB3HF datasheet, PUMB3HF pinout, PUMB3HF application, or PUMB3HF equivalent, this page delivers verified electrical parameters, thermal derating behavior, junction-to-ambient resistance, off-state input voltage (−585 mV typ), and dual-transistor DC current gain (hFE = 200 min at −1 mA).
Technical Context
The PUMB3HF integrates two matched PNP transistors with a single integrated 4.7 kΩ base resistor (R1) on TR1 and no resistor on TR2 (R2 = open), enabling independent biasing of each transistor. Its dual-emitter-grounded configuration supports parallel or cascaded switching topologies without external pull-downs.
Designed for operation up to 175 °C junction temperature, it features low VCEsat (−100 mV max at −10 mA/−0.5 mA), high V(BR)CEO (−50 V), and stable hFE across −40 °C to +175 °C, making it suitable for automotive under-hood and industrial motor-control interface stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | −50 V - Maximum safe collector-emitter voltage with base open; defines blocking capability in high-side switch applications |
| IO | −100 mA - Continuous output current per transistor; supports driving LED arrays or logic-level loads directly |
| R1 | 4.7 kΩ (typ) - Integrated base bias resistor for TR1; eliminates one external component and reduces PCB footprint |
| VI(off) | −585 mV (typ) - Input voltage threshold below which TR1 remains fully off; ensures noise immunity in digital signal routing |
| hFE | 200 (min) at −1 mA/−5 V - DC current gain sufficient for reliable saturation with low base drive current |
| VCEsat | −100 mV (max) at −10 mA/−0.5 mA - Low saturation voltage minimizes power loss and self-heating in switching mode |
| Tj | 175 °C - Maximum junction temperature; enables use in high-ambient environments without derating penalties |
Pinout & Package
Package: SOT363 (TSSOP6), 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm lead pitch, FR4-compatible footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND1 | Emiter connection for TR1; common reference node for first transistor's current path |
| 2 | I1 | Base input for TR1; driven through internal R1; accepts TTL/CMOS-compatible logic levels |
| 3 | O2 | Collector output for TR2; active-high sink when TR2 is biased via external network |
| 4 | GND2 | Emiter connection for TR2; electrically isolated from GND1 but same potential in typical layout |
| 5 | I2 | Base input for TR2; no internal resistor (R2 = open); requires external bias network |
| 6 | O1 | Collector output for TR1; provides inverted, buffered signal with built-in R1 biasing |
Key Features
| Feature | Design Value |
|---|---|
| Dual PNP RET topology | Enables compact dual-channel level-shifting or complementary logic buffering without discrete resistors on TR1 |
| −100 mA per transistor rating | Supports direct drive of medium-current loads (e.g., optocoupler LEDs, small relays) without external amplification |
| 175 °C maximum junction temperature | Validates use in engine control units, power supply monitoring, and industrial PLC I/O modules |
| Low VCEsat (−100 mV) | Reduces conduction loss by >60% vs. standard BC857-based designs at 10 mA load |
| SOT363 package | 0.65 mm pitch and 2.1 mm × 1.25 mm footprint enable high-density routing on space-constrained PCBs |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Isolating and conditioning analog sensor outputs (e.g., thermistor voltage dividers) before ADC input in programmable logic controllers. IC Role / Device Role / Timing Role: Dual-transistor level translator and current buffer; TR1 switches reference voltage, TR2 conditions feedback signal. Use Value: Built-in R1 eliminates one resistor per channel, reducing BOM count by 25% and improving thermal matching between channels. | Use Scenario: Driving door lock actuators and interior lighting PWM signals in non-safety-critical vehicle subsystems. IC Role / Device Role / Timing Role: High-temperature-tolerant load switch; TR1 controls solenoid enable, TR2 monitors status via collector sensing. Use Value: 175 °C Tj rating allows placement near fuse boxes or under-dash ECUs without heatsinking. |
| Digital Logic Level Translation | Power Supply Sequencing Monitor |
Use Scenario: Converting 3.3 V microcontroller GPIO outputs to −5 V logic levels for legacy industrial bus receivers. IC Role / Device Role / Timing Role: Inverting dual-stage translator; TR1 inverts and buffers, TR2 provides second inversion or OR-gating function. Use Value: −585 mV VI(off) ensures robust noise margin against EMI in factory-floor wiring environments. | Use Scenario: Monitoring rail presence and sequencing order in multi-rail FPGA power systems using discrete comparator inputs. IC Role / Device Role / Timing Role: Dual-input supervisor switch; TR1 detects 12 V rail, TR2 detects 3.3 V rail, both feeding OR logic to reset controller. Use Value: Matched hFE and VCEsat across temperature ensure consistent turn-on timing across rails during cold-start conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-PNP switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC857BDW1T1G | Discrete dual PNP pair, no built-in resistors; requires two external 4.7 kΩ bias resistors | Higher component count and layout area; less suitable for ultra-compact designs | Select when full bias flexibility is required or when R2 must be actively controlled |
| PUMD6HF | NPN/PNP RET configuration; R1 = 22 kΩ, R2 = 47 kΩ; different polarity pairing | Used where mixed-signal level translation (e.g., 5 V → −5 V + 0 V) is needed | Select for complementary logic interfacing requiring one NPN and one PNP stage |
Compared with BC857BDW1T1G, PUMB3HF reduces bill-of-materials and improves thermal tracking; compared with PUMD6HF, it offers matched PNP characteristics ideal for dual-sink or dual-inversion topologies rather than mixed-polarity signal routing.
Availability
PUMB3HF is available at Aetrix Electronics and suitable for industrial sensor interface, automotive body control module, and digital logic level translation applications requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability validation.
Supply support for PUMB3HF 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, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
PUMB3HF belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered to simplify digital interface design by integrating precision bias resistors into miniature dual-transistor packages for space- and cost-sensitive applications.
FAQ
What is the function of R2 being 'open' in PUMB3HF?
R2 = open means no internal resistor is connected between the base and emitter of TR2. This gives designers full flexibility to apply custom biasing-such as voltage dividers, current sources, or feedback networks-to TR2 independently of TR1's fixed R1 bias. It avoids unintended interaction between the two transistors' base drive paths.
Can PUMB3HF replace BC857B dual transistors in existing designs?
Yes, PUMB3HF can replace BC857B pairs in digital switching roles, provided the circuit uses TR1's built-in R1 for biasing and TR2 is externally biased. Layout changes are minimal due to identical SOT363 footprint, but TR2's open R2 requires adding an external resistor if BC857B's base was previously pulled via resistor.
Is PUMB3HF qualified for automotive applications?
No-PUMB3HF is not AEC-Q101 qualified. While it operates reliably up to 175 °C junction temperature and is used in automotive body control modules, Nexperia explicitly states it is "non-automotive qualified" in its legal disclaimers. For safety-critical or certified automotive systems, AEC-Q101-compliant alternatives must be selected.
How does thermal resistance differ between per-transistor and per-device ratings?
Per-transistor Rth(j-a) is 625 K/W, reflecting worst-case dissipation in one transistor only; per-device Rth(j-a) is 417 K/W, representing total thermal resistance when both transistors operate simultaneously on the same die. The lower per-device value reflects shared heat spreading across the common silicon island and package substrate.
PUMB3HF 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
PUMB3HF FAQ
1.How can I place an order for PUMB3HF through Aetrix?
Please submit a Request for Quotation (RFQ) for PUMB3HF 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 PUMB3HF reliable?
The price and inventory of PUMB3HF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMB3HF is usually 5 days.
3.What payment methods are accepted for PUMB3HF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMB3HF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUMB3HF?
PUMB3HF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUMB3HF 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 PUMB3HF?
For technical support, including PUMB3HF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMB3HF requirements.
6.How does Aetrix verify that PUMB3HF is sourced from the original manufacturer or authorized distributors?
All PUMB3HF 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 PUMB3HF meets industry standards.
7.What is the process for return or replacement of PUMB3HF?
All PUMB3HF units undergo pre-shipment inspection (PSI). If there is an issue with PUMB3HF, 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 PUMB3HF part is unused and in its original packaging.
Return procedure for PUMB3HF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PUMB3HF 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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