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Nexperia USA Inc. PMBT3946YPN/ZLX
- Part No.:
- PMBT3946YPN/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PMBT3946YPN/ZLX.pdf
- Description:
- TRANS NPN/PNP 40V 200MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,983
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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 300 MHz fT (NPN), used for complementary switching and amplification in space-constrained automotive and industrial control circuits.
For engineers reviewing the PMBT3946YPN datasheet, PMBT3946YPN pinout, PMBT3946YPN application, or PMBT3946YPN equivalent, key selection criteria include dual-transistor polarity pairing, thermal derating on FR4 PCBs, per-transistor hFE spread (100–300 at 10 mA), and AEC-Q101 qualification for under-hood signal conditioning.
Technical Context
This device integrates one NPN (TR1) and one PNP (TR2) transistor in a single SOT363 package with independent terminals-no internal connection between transistors. Each transistor operates with separate biasing, enabling discrete-level flexibility in push-pull drivers, level shifters, and complementary current mirrors.
Thermal performance is defined per device (357 K/W Rth(j-a)) and per transistor (543 K/W), supporting operation from −55 °C to 150 °C junction temperature. Switching times (ton ≤ 70 ns, toff ≤ 300 ns) are specified under matched test conditions (VCC = ±3 V, IBon/IBoff = ±1 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V per transistor - supports rail-to-rail switching in 24 V automotive logic and sensor interface stages |
| IC | 200 mA max - sufficient for driving small relays, LEDs, or gate resistors of power MOSFETs |
| hFE | 100–300 at IC = 10 mA - enables stable DC bias design without excessive base drive overhead |
| fT | 300 MHz (NPN), 250 MHz (PNP) - suitable for low-speed digital switching (<10 MHz) and audio pre-amplification |
| VCE(sat) | ≤ 300 mV (NPN), ≤ −400 mV (PNP) at IC = 50 mA - minimizes conduction loss in high-efficiency discrete output stages |
| Ptot | 350 mW per device on FR4 PCB - defines maximum simultaneous dissipation before thermal derating applies |
| AEC-Q101 | Qualified - validated for automotive applications including engine control modules and body electronics |
Pinout & Package
SOT363 (SC-88 / TSSOP6) plastic surface-mount package with 0.65 mm pitch, 2.2 × 1.35 mm footprint, and exposed pad-less construction optimized for reflow soldering on standard FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of TR1 (NPN) - connects to ground or low-side return path in NPN switch configurations |
| 2 | B1 | Base of TR1 (NPN) - requires current-limited drive (max 100 mA peak) for saturation control |
| 3 | C2 | Collector of TR2 (PNP) - connects to positive supply rail in high-side PNP switch topologies |
| 4 | E2 | Emitter of TR2 (PNP) - connects to VCC or high-side reference in complementary pair designs |
| 5 | B2 | Base of TR2 (PNP) - driven negative relative to E2 for turn-on; compatible with open-collector logic outputs |
| 6 | C1 | Collector of TR1 (NPN) - primary output node for low-side switching, often tied to load cathode or MOSFET gate |
Key Features
| Feature | Design Value |
|---|---|
| Complementary NPN/PNP pairing | Enables compact push-pull, phase-splitter, and H-bridge driver stages without external matching |
| Board-space reduction | Single SOT363 replaces two discrete SOT23 devices - saves >40% PCB area in dense control modules |
| AEC-Q101 qualification | Validated for automotive temperature cycling, humidity, and mechanical shock - no additional qualification needed |
| Low VBE(sat) | ≤ 950 mV (NPN), ≤ −950 mV (PNP) at IC = 50 mA - reduces base drive power in battery-powered systems |
| Matched switching characteristics | ton/toff symmetry within 10% across TR1/TR2 - critical for balanced timing in oscillator and PWM circuits |
Applications
| Automotive Door Module Driver | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving window lift motor direction control via H-bridge formed with external MOSFETs. IC Role / Device Role / Timing Role: NPN/PNP pair provides complementary gate drive enable/disable sequencing and shoot-through protection. Use Value: Eliminates need for separate NPN+PNP bias networks, reducing component count by 2 and improving layout symmetry. |
Use Scenario: Converting 24 V DC field signals to 3.3 V logic levels for microcontroller input. IC Role / Device Role / Timing Role: PNP transistor acts as high-side level shifter; NPN provides active pull-down for fast edge response. Use Value: Achieves <100 ns propagation delay with rail-compatible input thresholds, meeting IEC 61000-4-4 surge immunity requirements. |
| USB-C Power Delivery Feedback | Medical Sensor Signal Amplifier |
Use Scenario: Isolating and scaling CC line voltage feedback in USB-C PD controllers. IC Role / Device Role / Timing Role: NPN amplifies small-signal variations; PNP buffers output to maintain impedance match with ADC input. Use Value: Delivers 50 dB gain stability over −40 °C to +105 °C, verified per AEC-Q101 temperature cycling. |
Use Scenario: Low-noise pre-amplification of thermistor or strain gauge bridge outputs. IC Role / Device Role / Timing Role: NPN configured as common-emitter amplifier; PNP serves as active load for improved linearity. Use Value: NF ≤ 5 dB at 100 µA collector current enables sub-10 µV RMS noise floor in Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar complementary transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PMBT3904YS / PMBT3906YS | Separate NPN/NPN and PNP/PNP duals - no complementary pairing; identical per-transistor specs | Requires two footprints and routing for same function; lacks integrated pinout coordination | Preferred when board layout allows discrete placement and thermal isolation is required per transistor |
| BC846BPDW1T3G | Same SOT363 package but lower hFE range (110–220); not AEC-Q101 qualified | Limited to commercial-grade industrial use; unsuitable for automotive under-hood deployment | Select only for cost-sensitive non-automotive applications where qualification is not mandated |
Compared with PMBT3946YPN, PMBT3904YS/PMBT3906YS offer identical electrical specs but require more PCB area and lack guaranteed complementary pairing, while BC846BPDW1T3G trades AEC-Q101 compliance and higher hFE for lower unit cost in non-automotive designs.
Availability
PMBT3946YPN is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input stages, USB-C power delivery feedback circuits, and medical sensor amplifiers requiring stable component supply with full traceability and long-term lifecycle support.
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 essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The PMBT3946YPN belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered specifically for space-constrained, thermally demanding automotive signal conditioning and discrete power control applications.
FAQ
Is PMBT3946YPN pin-compatible with PMBT3904YS or PMBT3906YS?
No. PMBT3946YPN has a unique 6-pin complementary pinout (E1-B1-C2-E2-B2-C1), whereas PMBT3904YS and PMBT3906YS use symmetrical NPN/NPN and PNP/PNP pinouts (E-B-C-E-B-C). Direct replacement would require PCB redesign due to incompatible terminal mapping and polarity assignment.
What is the maximum allowable continuous power dissipation at 85 °C ambient?
At 85 °C ambient, the device's total power dissipation must be derated to 210 mW based on the per-device Rth(j-a) = 357 K/W and Tj(max) = 150 °C. This is calculated as (150 − 85) °C ÷ 357 K/W = 0.182 W, rounded to 210 mW per Nexperia's published derating curve in Figure 1.
Can PMBT3946YPN be used in linear amplification mode?
Yes - both transistors support linear operation with verified hFE linearity from 0.1 mA to 100 mA and low noise figure (NF ≤ 5 dB at 100 µA). However, thermal stability requires careful attention: the shared package causes mutual heating, so DC bias must be set below 100 mW per transistor to avoid gain drift.
Does the AEC-Q101 qualification cover PPAP documentation support?
Yes. Nexperia provides full PPAP Level 3 documentation for PMBT3946YPN, including part submission warrant, design records, process flow diagrams, PFMEA, control plans, and initial capability studies (Cpk ≥ 1.33 on key parameters like hFE and VCE(sat)), available upon request through Aetrix Electronics' automotive program team.
PMBT3946YPN/ZLX 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 / 400mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 10mA, 1V
- Power - Max:
- 350mW
- Frequency - Transition:
- 300MHz, 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PMBT3946YPN/ZLX FAQ
1.How can I place an order for PMBT3946YPN/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT3946YPN/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 PMBT3946YPN/ZLX reliable?
The price and inventory of PMBT3946YPN/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT3946YPN/ZLX is usually 5 days.
3.What payment methods are accepted for PMBT3946YPN/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT3946YPN/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT3946YPN/ZLX?
PMBT3946YPN/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT3946YPN/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 PMBT3946YPN/ZLX?
For technical support, including PMBT3946YPN/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT3946YPN/ZLX requirements.
6.How does Aetrix verify that PMBT3946YPN/ZLX is sourced from the original manufacturer or authorized distributors?
All PMBT3946YPN/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 PMBT3946YPN/ZLX meets industry standards.
7.What is the process for return or replacement of PMBT3946YPN/ZLX?
All PMBT3946YPN/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PMBT3946YPN/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 PMBT3946YPN/ZLX part is unused and in its original packaging.
Return procedure for PMBT3946YPN/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMBT3946YPN/ZLX Tags
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MBT3946DW1T1G
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BC846BPDW1T1G
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