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Nexperia USA Inc. PMBT3946YPN/ZLH
- Part No.:
- PMBT3946YPN/ZLH
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PMBT3946YPN/ZLH.pdf
- Description:
- TRANS NPN/PNP 40V 200MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,940
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Product details
Overview
PMBT3946YPN from Nexperia is an AEC-Q101-qualified NPN/PNP general-purpose double transistor in SOT363 (SC-88) package, rated for 40 V VCEO, 200 mA IC, and 230 mW per transistor. It delivers DC current gain (hFE) of 100–300 at IC = 10 mA, VCE = 1 V, and supports dual-polarity switching in compact automotive and industrial control circuits.
For engineers reviewing the PMBT3946YPN datasheet, PMBT3946YPN pinout, PMBT3946YPN application, or PMBT3946YPN equivalent, this device serves as a space-saving, qualified dual-transistor solution for complementary switching, level translation, and discrete logic interface design where board area and automotive reliability are critical.
Technical Context
This dual transistor integrates one NPN (TR1) and one PNP (TR2) die in a single SOT363 package, with independent emitter, base, and collector terminals for each device. Pin configuration enables fully decoupled biasing and operation - no shared terminals between transistors.
Both transistors meet AEC-Q101 stress test requirements for automotive use, with junction temperature up to 150 °C, ambient operating range from −55 °C to +150 °C, and thermal resistance Rth(j-a) of 357 K/W per device on FR4 PCB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum safe collector-emitter voltage for both NPN and PNP transistors under open-base conditions. |
| IC | 200 mA - Continuous collector current rating per transistor, defining maximum load drive capability. |
| hFE | 100–300 - DC current gain at IC = 10 mA, VCE = 1 V, enabling predictable base drive sizing for saturation. |
| VCE(sat) | 120–300 mV (NPN), −165 to −400 mV (PNP) - Low saturation voltage ensures minimal conduction loss in switching applications. |
| fT | 300 MHz (NPN), 250 MHz (PNP) - Transition frequency confirms suitability for high-speed digital switching up to ~50 MHz. |
| Ptot | 350 mW - Total power dissipation limit for the dual-device package at Tamb ≤ 25 °C on standard FR4 PCB. |
Pinout & Package
Package: SOT363 (SC-88 / TSSOP6), 6-pin surface-mount plastic package with 0.65 mm pitch, optimized for automated assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of TR1 (NPN) | Provides low-impedance current sink path for NPN transistor; connects to ground or low-side load return. |
| 2 | Base of TR1 (NPN) | Controls NPN conduction; requires ~0.7 V forward bias and sufficient base current for saturation. |
| 3 | Collector of TR2 (PNP) | High-side current source node for PNP transistor; connects to positive rail or load supply. |
| 4 | Emitter of TR2 (PNP) | Connects to VCC or high-side reference; reverse polarity relative to NPN emitter. |
| 5 | Base of TR2 (PNP) | Controls PNP conduction; driven low (relative to emitter) to turn on; requires negative base current. |
| 6 | Collector of TR1 (NPN) | Low-side switching output node; sinks current to ground when TR1 is active. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness. |
| SOT363 footprint | Reduces PCB area by ~40% vs. two discrete SOT23 devices; compatible with standard reflow and wave soldering. |
| Complementary pairing | NPN/PNP topology enables push-pull, phase-splitter, and bidirectional level-shifting without external matching. |
| Low VCE(sat) | Ensures <150 mV drop at 50 mA, minimizing power loss and heat generation in battery-powered or thermally constrained designs. |
Applications
| Automotive Door Module Control | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving small solenoids and LED indicators in door latch and mirror control units. IC Role / Device Role / Timing Role: Dual-transistor switch providing isolated NPN low-side and PNP high-side drive from a common microcontroller GPIO. Use Value: Eliminates need for separate NPN+PNP footprints while maintaining AEC-Q101 compliance and thermal margin at 125 °C ambient. |
Use Scenario: Converting 24 V industrial sensor signals to 3.3 V/5 V logic levels for FPGA or MCU inputs. IC Role / Device Role / Timing Role: Discrete level translator using NPN as active-low input stage and PNP as active-high pull-up stage. Use Value: Achieves sub-100 ns propagation delay and rail-to-rail swing without integrated translator IC cost or complexity. |
| USB-C Power Path Management | Medical Infusion Pump Motor Driver |
Use Scenario: Enabling/disabling VBUS and CC line termination in USB-C port controllers. IC Role / Device Role / Timing Role: Complementary pair managing bidirectional enable signaling and fault isolation between host and peripheral sides. Use Value: Supports fast (<250 ns) turn-off response required for USB-C specification fault recovery timing. |
Use Scenario: Driving small stepper motor phases and status LEDs in Class II medical equipment. IC Role / Device Role / Timing Role: Dual-switch interface between low-voltage logic and 5–12 V motor windings/LED loads. Use Value: Meets IEC 60601 creepage/clearance requirements via SOT363 isolation and certified AEC-Q101 process traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN/PNP dual-transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC846BPDW1T1G | Same SOT363 package; hFE min 200 (NPN), 120 (PNP); VCEO = 65 V (NPN), 45 V (PNP); not AEC-Q101 qualified. | Higher voltage rating but lacks automotive qualification; suitable for industrial/commercial only. | Select when higher breakdown voltage is prioritized over automotive reliability certification. |
| DMN3028LSD-13 | Single-package N-channel/P-channel MOSFET pair (not bipolar); RDS(on) = 30 mΩ; gate threshold ±1.2 V; no DC current gain. | Replaces bipolar function with voltage-controlled switching; lower drive current, higher speed, but no linear amplification. | Select when zero gate current, faster switching (>10 ns), and lower conduction loss outweigh need for analog gain or legacy BJT compatibility. |
Compared with BC846BPDW1T1G and DMN3028LSD-13, the PMBT3946YPN uniquely combines AEC-Q101 qualification, matched bipolar characteristics, and proven thermal performance in automotive-qualified SOT363 - making it the only choice where functional safety traceability and bipolar behavior are mandatory.
Availability
PMBT3946YPN is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and medical device signal conditioning requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for PMBT3946YPN 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 - delivering discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PMBT3946YPN belongs to Nexperia's AEC-Q101-qualified general-purpose bipolar transistor family, engineered specifically for space-constrained, thermally demanding automotive and industrial control applications requiring dual-polarity discrete switching.
FAQ
Is PMBT3946YPN pin-compatible with PMBT3904YS or PMBT3906YS?
No. PMBT3946YPN is a dual NPN/PNP device in SOT363 with six dedicated pins, whereas PMBT3904YS (NPN/NPN) and PMBT3906YS (PNP/PNP) are also in SOT363 but have different internal configurations and pin assignments. Their pinouts are not interchangeable - direct substitution would cause incorrect biasing or circuit failure.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 100 mA (single pulse, tp ≤ 1 ms), but for continuous DC operation, base current must be limited to ensure IC ≤ 200 mA and junction temperature remains ≤ 150 °C. At IC = 100 mA and hFE = 50 (min), recommended IB is ≤ 2 mA per transistor to maintain saturation without overstress.
Can PMBT3946YPN be used in linear amplifier configurations?
Yes - its specified hFE range (100–300), low noise figure (≤5 dB), and characterized VBE vs. IC curves support Class-A small-signal amplification. However, thermal derating must be applied: at Tamb = 85 °C, usable Ptot drops to ~180 mW, limiting practical AC output power to <50 mW per transistor.
Does the "ZLH" suffix indicate a specific revision or packaging variant?
Yes - "ZLH" is Nexperia's date-and-site code per their marking convention (Table 3). "BB%" is the top-side marking, where "%" denotes manufacturing site; "ZLH" corresponds to a 2025 production batch at Nexperia's Hamburg facility, consistent with the July 2025 data sheet revision. No electrical or reliability differences exist versus non-suffixed PMBT3946YPN.
PMBT3946YPN/ZLH 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:
- 1 NPN, 1 PNP
- Current - Collector (Ic) (Max):
- 200mA
- Voltage - Collector Emitter Breakdown (Max):
- 40V
- Vce Saturation (Max) @ Ib, Ic:
- 300mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 1V
- Power - Max:
- 350mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PMBT3946YPN/ZLH FAQ
1.How can I place an order for PMBT3946YPN/ZLH through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT3946YPN/ZLH 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 PMBT3946YPN/ZLH reliable?
The price and inventory of PMBT3946YPN/ZLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT3946YPN/ZLH is usually 5 days.
3.What payment methods are accepted for PMBT3946YPN/ZLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT3946YPN/ZLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT3946YPN/ZLH?
PMBT3946YPN/ZLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT3946YPN/ZLH 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 PMBT3946YPN/ZLH?
For technical support, including PMBT3946YPN/ZLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT3946YPN/ZLH requirements.
6.How does Aetrix verify that PMBT3946YPN/ZLH is sourced from the original manufacturer or authorized distributors?
All PMBT3946YPN/ZLH 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 PMBT3946YPN/ZLH meets industry standards.
7.What is the process for return or replacement of PMBT3946YPN/ZLH?
All PMBT3946YPN/ZLH units undergo pre-shipment inspection (PSI). If there is an issue with PMBT3946YPN/ZLH, 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 PMBT3946YPN/ZLH part is unused and in its original packaging.
Return procedure for PMBT3946YPN/ZLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMBT3946YPN/ZLH Tags
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MBT3946DW1T1G
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BC846BPDW1T1G
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MBT2222ADW1T1G
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BC847BDW1T1G
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DMMT5401-7-F
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DMMT5551-7-F
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DMMT3904W-7-F
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DMMT3906W-7-F
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FMB3904
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FMB2222A
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ULQ2003D1013TR
STMicroelectronics
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ZXTD4591E6TA
Diodes Incorporated
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