Nexperia USA Inc. PUMH9-QX
- Part No.:
- PUMH9-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays, Pre-Biased
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PUMH9-QX.pdf
- Description:
- TRANS PREBIAS 2NPN 50V 6TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PUMH9-QX from Nexperia is a dual NPN resistor-equipped transistor (RET) in SOT363-3 (TSSOP6) package, rated for 50 V VCEO, 100 mA per transistor output current, with integrated bias resistors R1 = 10 kΩ and R2 = 47 kΩ. It serves as a compact, AEC-Q101-qualified digital switching element for automotive signal conditioning and load control.
For engineers reviewing the PUMH9-QX datasheet, PUMH9-QX pinout, PUMH9-QX application, or PUMH9-QX equivalent, this device is selected for space-constrained digital interface circuits requiring reduced external component count, simplified base drive, and automotive-grade reliability without discrete bias networks.
Technical Context
The PUMH9-QX integrates two matched NPN transistors with on-chip base biasing: each channel includes a 10 kΩ input resistor (R1) and a 47 kΩ feedback resistor (R2), yielding a nominal R2/R1 ratio of 4.7. This configuration enables direct logic-level drive with defined turn-on/off thresholds (VI(on) = 0.8–1.4 V, VI(off) = 0.5–0.7 V).
It operates across –55 °C to +150 °C ambient, supports 200 mW per transistor and 300 mW per device power dissipation on FR4 PCB, and delivers hFE ≥ 100 at IC = 5 mA, VCE = 5 V - optimized for saturated switching rather than linear amplification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - maximum collector-emitter voltage before breakdown; defines safe switching range for 24 V automotive loads. |
| IO | 100 mA per transistor - continuous DC output current capability; supports driving LEDs, small relays, or logic inputs. |
| R1 | 10 kΩ ±30% - built-in base input resistor; eliminates need for external pull-up/pull-down and simplifies microcontroller GPIO interfacing. |
| R2/R1 | 4.7 ±21% - fixed internal feedback ratio; ensures stable saturation and predictable turn-off behavior under temperature variation. |
| VCE(sat) | ≤100 mV at IC = 5 mA, IB = 0.25 mA - low saturation voltage minimizes power loss and self-heating in switching mode. |
| fT | 230 MHz typical - transition frequency confirms suitability for high-speed digital switching up to ~10–20 MHz edge rates. |
| hFE | ≥100 at VCE = 5 V, IC = 5 mA - sufficient DC gain to ensure deep saturation with standard logic drive levels. |
Pinout & Package
SOT363-3 (TSSOP6) plastic surface-mounted package: 1.3 mm × 2.2 mm footprint, 0.65 mm pitch, 0.45 mm max height; designed for reflow soldering on FR4 PCBs with standard 0.5 mm solder paste pads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND1 | Emitter connection for transistor TR1; common reference node for first channel. |
| 2 | I1 | Base input for TR1; driven through internal R1; accepts TTL/CMOS logic signals directly. |
| 3 | O2 | Collector output for TR2; active-high sink when TR2 is on. |
| 4 | GND2 | Emitter connection for transistor TR2; independent ground node for second channel. |
| 5 | I2 | Base input for TR2; driven through internal R1; electrically isolated from I1. |
| 6 | O1 | Collector output for TR1; active-high sink when TR1 is on. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN RET architecture | Two independent, resistor-biased NPN transistors in one ultra-small SOT363-3 package - reduces board area by >40% vs. discrete BC847-Q pairs. |
| AEC-Q101 qualification | Stress-tested per Automotive Electronics Council requirements - validated for under-hood and body-control module use up to 150 °C junction temperature. |
| Integrated R1/R2 network | 10 kΩ input resistor + 47 kΩ feedback resistor per channel - eliminates four external resistors and associated placement/assembly steps. |
| Low VCE(sat) and high hFE | ≤100 mV saturation voltage and ≥100 DC gain at 5 mA - ensures reliable on-state performance with 3.3 V or 5 V logic drivers. |
| Thermal derating support | 417 K/W per-device Rth(j-a) on FR4 - enables sustained 100 mA operation below 85 °C ambient with standard PCB layout. |
Applications
| Automotive Body Control Module | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Level-shifting and current-limiting of 12 V sensor switch signals into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Digital interface buffer and voltage translator; provides galvanic isolation between higher-voltage sensors and low-voltage logic. Use Value: Eliminates need for external bias resistors and protection diodes while maintaining AEC-Q101 compliance for under-dash electronics. |
Use Scenario: Converting 24 V dry-contact closure signals into clean, debounced logic inputs for programmable logic controllers. IC Role / Device Role / Timing Role: Input stage signal conditioner; acts as current-limited, noise-immune switch interface with defined hysteresis via R2/R1 ratio. Use Value: Reduces BOM count by two resistors per channel and improves ESD robustness (VI(off) ≤ 0.7 V) over discrete transistor solutions. |
| LED Driver for Dashboard Indicators | Smart Sensor Node Power Switching |
Use Scenario: Driving multiplexed red/green LED segments in automotive instrument clusters using PWM-controlled GPIOs. IC Role / Device Role / Timing Role: Low-side current sink switch; handles up to 100 mA per segment with <100 mV dropout at full load. Use Value: Enables direct microcontroller drive without external current-setting resistors; thermal resistance allows 2× duty-cycle headroom vs. SOT23 alternatives. |
Use Scenario: Enabling/disabling peripheral sensors (e.g., pressure, humidity) in battery-powered IoT nodes to minimize standby leakage. IC Role / Device Role / Timing Role: Load switch controller; provides controlled turn-on/turn-off with predictable VI(on)/VI(off) thresholds for low-power sequencing. Use Value: Built-in R1 ensures <100 nA input leakage at VI(off), reducing system sleep current versus discrete BJT + resistor designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BPDW1T3G | Discrete dual NPN in SOT363; no built-in resistors - requires external R1/R2 network per channel. | Higher design flexibility but increases BOM count, layout area, and assembly cost. | Select when precise resistor tolerance (<5%) or custom R2/R1 ratios are required beyond 4.7. |
| PUMD9-Q | NPN/PNP complement; shares same package and bias resistor values but mixed polarity outputs. | Required for push-pull or complementary switching topologies (e.g., H-bridge pre-driver stages). | Select when bidirectional signal inversion or level translation between complementary logic families is needed. |
Compared with BC847BPDW1T3G, PUMH9-QX reduces component count and layout complexity at the cost of fixed biasing; compared with PUMD9-Q, it provides matched NPN channels ideal for parallel load switching rather than complementary drive.
Availability
PUMH9-QX is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input interfaces, LED dashboard indicators, and smart sensor node power switching requiring stable component supply and AEC-Q101 assurance.
Supply support for PUMH9-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 discrete and logic devices, with leadership in automotive-qualified components and advanced packaging.
The PUMH9-QX belongs to Nexperia's Resistor-Equipped Transistor (RET) product line, engineered specifically to replace discrete BJT + resistor combinations in cost-sensitive, space-constrained digital switching applications across automotive and industrial markets.
FAQ
What is the maximum operating temperature for PUMH9-QX in continuous use?
The PUMH9-QX has a maximum junction temperature (Tj) of 150 °C and an ambient operating range of –55 °C to +150 °C. When mounted on a standard FR4 PCB (single-sided, 35 μm copper), its per-device power derating curve allows 300 mW at 25 °C ambient, decreasing linearly to zero at 150 °C ambient - enabling continuous 100 mA operation below 85 °C ambient with proper layout.
Can PUMH9-QX be used as a linear amplifier?
No - the PUMH9-QX is optimized for saturated switching, not linear operation. Its hFE is specified only at IC = 5 mA and VCE = 5 V, and its built-in R1/R2 network fixes bias conditions unsuitable for analog gain control. The datasheet does not specify linearity parameters (e.g., distortion, bandwidth in common-emitter mode), and thermal characteristics assume pulsed or switched duty cycles.
How does the R2/R1 ratio affect switching behavior?
The R2/R1 ratio of 4.7 sets the internal feedback that stabilizes the transistor's on/off state: higher ratios increase effective base current during turn-on and improve immunity to leakage-induced false triggering, while also raising VI(off) (0.5–0.7 V), ensuring reliable cutoff with 0 V logic low. This ratio is factory-trimmed and not user-adjustable.
Is there a lead-free and RoHS-compliant version of PUMH9-QX?
Yes - the PUMH9-QX is manufactured in full compliance with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. All package materials, plating, and die attach are lead-free; the device carries the "Pb-free" marking per Nexperia's standard qualification and is compatible with standard lead-free reflow profiles (peak 260 °C).
PUMH9-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN - Pre-Biased (Dual)
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Resistor - Base (R1):
- 10kOhms
- Resistor - Emitter Base (R2):
- 47kOhms
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 5mA, 5V
- Vce Saturation (Max) @ Ib, Ic:
- 100mV @ 250µA, 5mA
- Current - Collector Cutoff (Max):
- 100nA
- Frequency - Transition:
- 230MHz
- Power - Max:
- 200mW
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PUMH9-QX FAQ
1.How can I place an order for PUMH9-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PUMH9-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 PUMH9-QX reliable?
The price and inventory of PUMH9-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMH9-QX is usually 5 days.
3.What payment methods are accepted for PUMH9-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMH9-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUMH9-QX?
PUMH9-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUMH9-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 PUMH9-QX?
For technical support, including PUMH9-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMH9-QX requirements.
6.How does Aetrix verify that PUMH9-QX is sourced from the original manufacturer or authorized distributors?
All PUMH9-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 PUMH9-QX meets industry standards.
7.What is the process for return or replacement of PUMH9-QX?
All PUMH9-QX units undergo pre-shipment inspection (PSI). If there is an issue with PUMH9-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 PUMH9-QX part is unused and in its original packaging.
Return procedure for PUMH9-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PUMH9-QX Tags

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SMUN5311DW1T1G
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PUMH13,115
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PUMD9,115
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PUMH9,115
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DCX114EU-7-F
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