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Nexperia USA Inc. PMBT3946YPN,125
- Part No.:
- PMBT3946YPN,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PMBT3946YPN,125.pdf
- Description:
- TRANS NPN/PNP 40V 200MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,910
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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), enabling compact dual-polarity switching and amplification in 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 matching, thermal derating on FR4 PCBs, junction temperature limits up to 150 °C, and verified AEC-Q101 qualification for under-hood automotive use.
Technical Context
This device integrates one NPN (TR1) and one PNP (TR2) transistor in a single SOT363 package with independent terminals-no shared emitter or base. TR1 delivers hFE = 100–300 at IC = 10 mA, VCE = 1 V; TR2 provides symmetric hFE = 100–300 at IC = −10 mA, VCE = −1 V, supporting complementary biasing in push-pull or level-shifting topologies.
Switching performance is characterized with ton ≤ 70 ns and toff ≤ 300 ns under defined test conditions (VCC = ±3 V, IBon/IBoff = ±1 mA), while thermal resistance Rth(j-a) is 357 K/W per device on standard FR4, enabling reliable operation up to 125 °C ambient with appropriate power derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V per transistor - supports rail-to-rail switching in 24 V automotive and 3.3/5 V logic-level systems |
| IC | 200 mA max - sufficient for driving LEDs, small relays, and logic-level interface loads |
| fT | 300 MHz (NPN), 250 MHz (PNP) - enables high-speed digital switching and RF pre-amplifier use up to ~100 MHz |
| hFE | 100–300 at IC = 10 mA - ensures stable current gain across industrial temperature range (−55 °C to 150 °C) |
| VCE(sat) | ≤ 300 mV (NPN), ≤ −400 mV (PNP) at IC/IB = 10 - minimizes conduction loss in low-voltage switching applications |
| Rth(j-a) | 357 K/W per device on FR4 - defines thermal headroom for continuous 230 mW dissipation at Tamb ≤ 25 °C |
Pinout & Package
SOT363 (SC-88 / TSSOP6) surface-mount plastic package, 1.3 mm × 2.2 mm footprint, 0.65 mm pitch, 0.95 mm max height, optimized for automated placement and reflow soldering on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Emitter of TR1 (NPN) | Provides low-impedance current sink path for NPN transistor; referenced to ground in common-emitter configurations |
| 2 | Base of TR1 (NPN) | Controls NPN conduction; requires ~0.7 V forward bias and current-limited drive for saturation |
| 3 | Collector of TR2 (PNP) | High-side current source node for PNP; connects to positive supply in high-side switch applications |
| 4 | Emitter of TR2 (PNP) | Current source output terminal; tied to VCC in emitter-follower or level-shift configurations |
| 5 | Base of TR2 (PNP) | Enables PNP turn-on with negative base current relative to emitter; compatible with open-drain MCU outputs |
| 6 | Collector of TR1 (NPN) | Low-side current sink node; interfaces directly with load and ground return path in switching circuits |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control modules and body electronics |
| Dual NPN/PNP topology | Eliminates need for two discrete packages, reducing board area by >40% vs. SOT23 duals |
| Matched hFE spread | Both transistors specified 100–300 gain range at same test conditions, simplifying complementary bias design |
| Low VBE(sat) | ≤ 950 mV (NPN), ≤ −950 mV (PNP) at IC/IB = 10 - reduces base drive power in high-duty-cycle switching |
| Thermal robustness | Junction temperature rating of 150 °C and storage range −65 °C to 150 °C support extended industrial environments |
Applications
| Automotive LED Lighting Control | Industrial Push-Pull Level Shifter |
|---|---|
|
Use Scenario: Driving CAN-bus-compatible status LEDs in vehicle door modules with 12 V supply and 3.3 V microcontroller GPIO. IC Role / Device Role / Timing Role: NPN switches LED cathode to ground; PNP sources current to LED anode from 12 V rail - enabling bidirectional current control from single logic signal. Use Value: Dual topology eliminates external pull-up resistors and reduces component count by 2× versus discrete solutions, meeting AEC-Q101 reliability requirements. |
Use Scenario: Converting 3.3 V logic signals to ±5 V levels for analog multiplexer control in PLC I/O modules. IC Role / Device Role / Timing Role: NPN pulls output low; PNP pulls output high - forming a fast, low-impedance complementary driver stage with matched rise/fall times. Use Value: ton/toff ≤ 70/300 ns ensures clean transitions at 1 MHz data rates; VCE(sat) < 0.3 V minimizes voltage drop in precision level translation. |
| Consumer Appliance Motor Driver Stage | Medical Sensor Signal Conditioning |
|
Use Scenario: Driving small DC brush motors in smart home HVAC actuators using PWM from 5 V MCU with overcurrent protection feedback. IC Role / Device Role / Timing Role: NPN handles low-side PWM switching; PNP enables active pull-up during dead-time to prevent shoot-through in half-bridge gate drive assist. Use Value: 200 mA IC rating supports 150 mA motor stall current; 150 °C Tj rating accommodates sealed enclosure thermal buildup. |
Use Scenario: Amplifying low-noise thermistor or strain gauge signals in portable diagnostic devices with battery-powered 3.3 V supply. IC Role / Device Role / Timing Role: NPN configured as common-emitter amplifier; PNP used in active load configuration to improve gain linearity and bandwidth. Use Value: NF ≤ 5 dB (NPN) and ≤ 4 dB (PNP) at 10 Hz–15.7 kHz enables sub-1 µV RMS noise performance; hFE stability over −40 °C to 85 °C ensures calibration retention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-transistor switching and amplification applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BPDW1T3G | Same SOT363 package, NPN/PNP pair, but hFE min = 200 (NPN) / 120 (PNP); no AEC-Q101 qualification | Lacks automotive qualification; suitable only for commercial-grade consumer or industrial equipment | Select when AEC-Q101 is not required and tighter hFE matching is needed for precision bias networks |
| DMN3028LSD-13 | Single-channel dual-NMOS FET in SOT23-6; not bipolar - higher input impedance, lower gate charge, but no linear amplification capability | Replaces switching function only; cannot replicate analog amplification or complementary current sourcing/sinking | Choose for high-efficiency, high-frequency PWM switching where bipolar gain and linearity are unnecessary |
Compared with BC847BPDW1T3G, PMBT3946YPN offers guaranteed automotive qualification and broader hFE range for robust bias design; versus DMN3028LSD-13, it retains analog gain and complementary polarity essential for linear signal conditioning and level shifting.
Availability
PMBT3946YPN is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O, consumer appliance motor drives, and medical sensor signal conditioning requiring stable component supply across production lifecycles.
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 discrete and logic devices, with leadership in automotive-qualified components and energy-efficient packaging technologies.
PMBT3946YPN belongs to Nexperia's AEC-Q101-qualified general-purpose bipolar transistor family, engineered specifically for space-constrained automotive and industrial applications demanding dual-polarity functionality and proven reliability.
FAQ
What is the maximum operating junction temperature for PMBT3946YPN?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in the Limiting Values table. Operation above this threshold risks permanent parametric shift or failure. Derating is required above 25 °C ambient per the 357 K/W Rth(j-a) curve - e.g., at 85 °C ambient, maximum allowable Ptot drops to ~220 mW.
Can PMBT3946YPN be used in linear amplifier configurations?
Yes - both transistors are characterized for hFE, VBE, and VCE(sat) across collector currents from 0.1 mA to 100 mA and temperatures from −55 °C to 150 °C. Figures 3–12 confirm stable gain and voltage behavior in common-emitter and emitter-follower topologies suitable for audio and sensor signal amplification.
Is the SOT363 package lead-free and RoHS compliant?
Yes - Nexperia confirms PMBT3946YPN meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The device uses lead-free matte tin (Sn) termination finish and complies with JEDEC J-STD-020 moisture sensitivity level 1 (MSL1), allowing unlimited floor life at ≤30 °C/60% RH.
How does the pinout differ between PMBT3946YPN and PMBT3904YS?
PMBT3904YS is an NPN/NPN dual in SOT363 with pins 1–6 assigned as E1/B1/C1/E2/B2/C2. PMBT3946YPN uses a cross-coupled pinout: pins 1–6 = E1/B1/C2/E2/B2/C1 - enabling direct complementary switching without PCB trace crossover. This layout supports true push-pull operation from a single control signal.
PMBT3946YPN,125 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:
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PMBT3946YPN,125 FAQ
1.How can I place an order for PMBT3946YPN,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT3946YPN,125 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,125 reliable?
The price and inventory of PMBT3946YPN,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT3946YPN,125 is usually 5 days.
3.What payment methods are accepted for PMBT3946YPN,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT3946YPN,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT3946YPN,125?
PMBT3946YPN,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT3946YPN,125 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,125?
For technical support, including PMBT3946YPN,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT3946YPN,125 requirements.
6.How does Aetrix verify that PMBT3946YPN,125 is sourced from the original manufacturer or authorized distributors?
All PMBT3946YPN,125 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,125 meets industry standards.
7.What is the process for return or replacement of PMBT3946YPN,125?
All PMBT3946YPN,125 units undergo pre-shipment inspection (PSI). If there is an issue with PMBT3946YPN,125, 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,125 part is unused and in its original packaging.
Return procedure for PMBT3946YPN,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMBT3946YPN,125 Tags
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