Nexperia USA Inc. PUMD6/ZLX
- Part No.:
- PUMD6/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PUMD6/ZLX.pdf
- Description:
- TRANS PREBIAS 1NPN 1PNP 6TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:6,706
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Product details
Overview
PUMD6/ZLX from Nexperia is a dual-channel resistor-equipped transistor (RET) in SOT363 (SC-88) package, integrating one NPN and one PNP silicon transistor with built-in 4.7 kΩ input bias resistors and open R2 terminals. It delivers 50 V VCEO, 100 mA output current per channel, and supports digital switching in space-constrained industrial control modules.
For engineers reviewing the PUMD6/ZLX datasheet, PUMD6/ZLX pinout, PUMD6/ZLX application, or PUMD6/ZLX equivalent, this device serves as a drop-in replacement for discrete base-resistor transistor pairs in level-shifting, logic interfacing, and low-current peripheral driving - with verified thermal derating on FR4 PCBs and documented VI(on)/VI(off) thresholds across -40°C to 100°C.
Technical Context
The PUMD6/ZLX implements two independent RET channels: TR1 (NPN) with VCEO = 50 V, hFE ≥ 200 at IC = 1 mA, and fT = 230 MHz; TR2 (PNP) with symmetric VCEO = -50 V, hFE ≥ 200 at IC = -1 mA, and fT = 180 MHz. Both transistors share identical 4.7 kΩ R1 bias resistors and no R2 connection.
Its TSSOP6 footprint enables dual-polarity switching without external bias networks. The device operates with VI(on) = 0.88 V (TR1) / -0.88 V (TR2) at IC = 10 mA and achieves VCE(sat) ≤ 100 mV at IC/IB = 20, supporting rail-to-rail logic-level drive in 3.3 V and 5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V (max collector-emitter voltage per transistor; defines safe switching range for 24 V industrial rails) |
| IO | 100 mA (max continuous output current per channel; sufficient for LED drivers and small solenoid loads) |
| R1 | 4.7 kΩ (integrated base bias resistor; eliminates need for external pull-up/down, reducing BOM count by 2 parts) |
| VCE(sat) | ≤ 100 mV at IC/IB = 20; ensures <10 mW conduction loss at 100 mA, critical for thermally constrained layouts) |
| fT | 230 MHz (TR1) / 180 MHz (TR2); supports >10 MHz digital signal switching with minimal propagation delay) |
| Ptot (per device) | 300 mW at Tamb ≤ 25 °C on FR4 PCB; enables dual-transistor operation within standard thermal limits) |
| Package | SOT363 (TSSOP6); 2.1 mm × 1.25 mm × 0.95 mm body, 0.65 mm pitch - compatible with high-density automated assembly) |
Pinout & Package
SOT363 (TSSOP6) plastic surface-mount package: 6-pin, 0.65 mm pitch, 2.1 mm × 1.25 mm × 0.95 mm body, optimized for reflow soldering on FR4 PCBs with 35 μm copper.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND1 | Emitter terminal of TR1 (NPN); common reference for first channel's current path |
| 2 | I1 | Base input of TR1 (NPN); connected internally to 4.7 kΩ R1 resistor - accepts TTL/CMOS logic levels directly |
| 3 | O2 | Collector output of TR2 (PNP); active-low switching node for sink-type loads |
| 4 | GND2 | Emitter terminal of TR2 (PNP); independent ground return for second channel |
| 5 | I2 | Base input of TR2 (PNP); connected internally to 4.7 kΩ R1 resistor - enables complementary logic control |
| 6 | O1 | Collector output of TR1 (NPN); active-high switching node for source-type loads |
Key Features
| Feature | Design Value |
|---|---|
| Built-in R1 bias resistors | 4.7 kΩ ±28% per channel; eliminates external base resistors and reduces layout area by ≥1.5 mm² |
| Dual-polarity integration | NPN + PNP in single SOT363; enables push-pull or complementary switching without inter-channel skew |
| Low VCE(sat) | ≤100 mV at IC = 5 mA; minimizes power dissipation in battery-powered or thermally isolated applications |
| Wide temperature operation | -65°C to +150°C ambient; validated hFE, VI(on), and VI(off) performance across full industrial range |
| FR4 thermal derating | Rth(j-a) = 416 K/W (per device); enables 300 mW total power handling with predictable junction rise on standard PCBs |
Applications
| Industrial Digital I/O Module | Microcontroller Peripheral Driver |
|---|---|
Use Scenario: Isolating and level-shifting 3.3 V MCU GPIO signals to control 24 V PLC inputs. IC Role / Device Role / Timing Role: Dual RET provides simultaneous sourcing (TR1) and sinking (TR2) capability for bidirectional interface without external biasing. Use Value: Reduces component count by 4 discrete resistors and 2 transistors per channel, cutting PCB area by 30% versus discrete implementation. |
Use Scenario: Driving low-current LEDs and optocouplers from embedded ARM Cortex-M0+ pins. IC Role / Device Role / Timing Role: Acts as logic-level translator and current amplifier; TR1 sources LED anode current, TR2 sinks optocoupler cathode current. Use Value: VI(on) ≤ 0.88 V ensures reliable turn-on from 3.3 V outputs; fT > 180 MHz supports PWM dimming up to 5 MHz. |
| Cost-Sensitive Sensor Interface | Legacy Logic Replacement |
Use Scenario: Conditioning analog sensor outputs (e.g., thermistor bridges) before ADC sampling in HVAC controllers. IC Role / Device Role / Timing Role: Switches reference voltage paths and enables/disables sensor excitation using complementary outputs. Use Value: Matched hFE and VCE(sat) between TR1/TR2 ensure balanced switching timing, minimizing measurement offset during multiplexing. |
Use Scenario: Replacing BC847/BC857 transistor pairs in legacy industrial control boards requiring RoHS-compliant, smaller-footprint solutions. IC Role / Device Role / Timing Role: Direct functional substitute with identical pin-compatible SOT363 layout and matching VCEO/IO ratings. Use Value: Eliminates redesign effort; same marking footprint (D%6) allows reuse of stencil and placement files with zero layout change. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual RET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PUMH7 | NPN/NPN configuration; identical R1 = 4.7 kΩ but no PNP channel | Limited to sourcing-only topologies; unsuitable for complementary or sink-driven loads | Select when only dual NPN switching is required and PNP functionality is unnecessary |
| PUMB3 | PNP/PNP configuration; same R1 value but lacks NPN channel | Supports only sink-side switching; cannot replace PUMD6 in push-pull or level-shift roles | Choose for dual-sink applications where TR1 sourcing capability is not needed |
Compared with PUMD6/ZLX, PUMH7 and PUMB3 lack complementary polarity - they cannot replicate its NPN+PNP co-integration, making them functionally incomplete substitutes in bidirectional interface designs despite shared package and bias resistor values.
Availability
PUMD6/ZLX is available at Aetrix Electronics and suitable for industrial digital I/O modules, microcontroller peripheral drivers, and cost-sensitive sensor interfaces requiring stable component supply and long-term production continuity.
Supply support for PUMD6/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 semiconductor expert focused on high-volume, high-reliability essential semiconductors for automotive, industrial, mobile, and computing markets.
The PUMD6/ZLX belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to reduce bill-of-materials complexity and improve assembly yield in digital switching applications across industrial and consumer electronics.
FAQ
What is the maximum operating temperature for PUMD6/ZLX?
The PUMD6/ZLX has a specified junction temperature limit of 150 °C and an ambient operating range of -65 °C to +150 °C. Thermal resistance is 416 K/W (per device) on FR4 PCB, enabling full 300 mW power dissipation only below 25 °C ambient; derating is required above that per Figure 1 in the datasheet.
Does PUMD6/ZLX include both NPN and PNP transistors in one package?
Yes - PUMD6/ZLX integrates one NPN transistor (TR1) and one PNP transistor (TR2) in a single SOT363 package. Pin 6 (O1) and Pin 2 (I1) serve TR1; Pin 3 (O2) and Pin 5 (I2) serve TR2, with separate emitter terminals (Pins 1 and 4) for independent grounding.
Can PUMD6/ZLX replace BC847/BC857 transistor pairs?
Yes - PUMD6/ZLX is explicitly positioned as a cost-saving alternative to BC847/BC857 series in digital applications. It matches their VCEO (50 V), IO (100 mA), and hFE (≥200), while integrating bias resistors and combining both polarities in one package, eliminating four external components.
What is the meaning of "R2 = open" in the PUMD6/ZLX specification?
"R2 = open" means no internal resistor connects between the base and emitter of either transistor - only R1 (4.7 kΩ) is integrated from base to ground. This configuration supports standard digital switching where base current is sourced/sunk externally through the R1 network, avoiding unintended emitter feedback paths.
PUMD6/ZLX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- 1 NPN, 1 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 @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 1µA
- Frequency - Transition:
- -
- Power - Max:
- 300mW
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PUMD6/ZLX FAQ
1.How can I place an order for PUMD6/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for PUMD6/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 PUMD6/ZLX reliable?
The price and inventory of PUMD6/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMD6/ZLX is usually 5 days.
3.What payment methods are accepted for PUMD6/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMD6/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUMD6/ZLX?
PUMD6/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUMD6/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 PUMD6/ZLX?
For technical support, including PUMD6/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMD6/ZLX requirements.
6.How does Aetrix verify that PUMD6/ZLX is sourced from the original manufacturer or authorized distributors?
All PUMD6/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 PUMD6/ZLX meets industry standards.
7.What is the process for return or replacement of PUMD6/ZLX?
All PUMD6/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PUMD6/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 PUMD6/ZLX part is unused and in its original packaging.
Return procedure for PUMD6/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PUMD6/ZLX Tags

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SMUN5311DW1T1G
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PUMH13,115
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