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Nexperia USA Inc. PMBT3904YS-QX
- Part No.:
- PMBT3904YS-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PMBT3904YS-QX.pdf
- Description:
- TRANS 2NPN 40V 200MA 6-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,832
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Product details
Overview
PMBT3904YS-QX from Nexperia is a dual NPN general-purpose transistor in SOT363-3 (SC-88) package, rated for 40 V VCEO, 200 mA IC, and DC current gain (hFE) of 100–300 at IC = 10 mA; qualified to AEC-Q101 for automotive signal switching and amplification in compact PCB layouts.
For engineers reviewing the PMBT3904YS-QX datasheet, PMBT3904YS-QX pinout, PMBT3904YS-QX application, or PMBT3904YS-QX equivalent, key selection criteria include dual-transistor integration, thermal resistance (Rth(j-a) = 357 K/W per device), AEC-Q101 qualification, and SOT363-3 footprint compatibility with high-density routing.
Technical Context
This double transistor integrates two matched NPN transistors (TR1 and TR2) in a single monolithic die, sharing no internal connection between them-each operates independently with separate emitter, base, and collector terminals. Pin configuration supports discrete cascaded or parallel configurations without cross-coupling.
It delivers consistent hFE across temperature (−55 °C to 150 °C) and maintains low VCEsat (≤ 300 mV at IC = 50 mA, IB = 5 mA), enabling efficient low-voltage switching in battery-powered and automotive control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum safe collector-emitter voltage under open-base condition; defines upper rail limit for 12 V/24 V automotive logic-level switching. |
| IC | 200 mA - Continuous collector current rating per transistor; supports driving small relays, LEDs, or logic buffers without external heat sinking. |
| hFE | 100–300 - DC current gain at VCE = 1 V, IC = 10 mA; enables predictable base drive sizing for saturation in digital interface circuits. |
| VCEsat | ≤ 300 mV - Collector-emitter saturation voltage at IC = 50 mA, IB = 5 mA; minimizes conduction loss and self-heating in high-duty-cycle switching. |
| Ptot (per device) | 350 mW - Total power dissipation on FR4 PCB; sets thermal design boundary for ambient temperatures up to 150 °C. |
| fT | 300 MHz - Transition frequency at VCE = 20 V, IC = 10 mA; confirms suitability for low-speed digital and audio-frequency amplification. |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive discrete semiconductors; validates reliability for under-hood and infotainment applications. |
Pinout & Package
SOT363-3 (SC-88/TSSOP6) plastic surface-mount package with 0.65 mm lead pitch, 2.2 mm × 1.35 mm body, and exposed pad-free construction; optimized for reflow soldering on standard FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of transistor TR1 - Reference node for TR1 current path; connects to ground or low-side return in common-emitter switch. |
| 2 | B1 | Base of transistor TR1 - Controls TR1 conduction; requires current-limited drive (e.g., 1–5 mA) for full saturation. |
| 3 | C2 | Collector of transistor TR2 - High-side output node for TR2; sinks load current when TR2 is active. |
| 4 | E2 | Emitter of transistor TR2 - Return path for TR2; electrically isolated from E1, enabling independent biasing. |
| 5 | B2 | Base of transistor TR2 - Independent control input for TR2; allows dual-channel logic-level interfacing from MCU GPIOs. |
| 6 | C1 | Collector of transistor TR1 - Primary output node for TR1; used for discrete signal inversion or load switching. |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN topology | Two fully isolated transistors in one SOT363-3 footprint - reduces board area by ~40% vs. two discrete SOT23 devices. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing - eliminates need for additional qualification effort in Tier-1 designs. |
| Low VCEsat | 750 mV max at IC/IB = 10 - ensures <1% voltage drop across switch in 3.3 V/5 V logic interfaces, preserving noise margin. |
| Thermal performance | Rth(j-a) = 357 K/W (per device) on FR4 - enables operation at 125 °C ambient with ≤150 mW dissipation without derating. |
| High fT | 300 MHz - supports clean edge transitions in PWM dimming (≤100 kHz) and audio pre-amplifier stages without phase shift. |
Applications
| Automotive Door Module Control | Industrial PLC Input Conditioning |
|---|---|
Use Scenario: Driving window lift motor direction logic and mirror fold/unfold signals in door ECUs. IC Role / Device Role / Timing Role: Dual NPN switch providing level-shifted, current-amplified outputs from 3.3 V microcontroller GPIOs to 12 V loads. Use Value: Eliminates need for two separate transistors and saves 2.5 mm² PCB area while maintaining AEC-Q101 compliance. | Use Scenario: Converting 24 V industrial sensor inputs to 5 V TTL-compatible levels for FPGA or ARM-based controllers. IC Role / Device Role / Timing Role: Two-stage signal conditioning: first transistor inverts and clamps, second provides buffered output with hFE-stabilized gain. Use Value: Achieves <1 µs propagation delay and <50 nA leakage (ICBO) for reliable detection of fast edge-triggered fieldbus events. |
| Consumer Appliance Motor Driver Stage | Medical Infusion Pump Signal Isolation |
Use Scenario: Controlling small DC brush motors in smart HVAC actuators and coffee maker water pumps. IC Role / Device Role / Timing Role: Low-side switch pair driving H-bridge half-bridges with complementary base drive timing. Use Value: VCEsat ≤ 300 mV at 100 mA ensures <30 mW conduction loss per channel, reducing thermal load in sealed enclosures. | Use Scenario: Galvanically isolated signal translation between microcontroller and solenoid driver IC in Class II medical devices. IC Role / Device Role / Timing Role: Optocoupler replacement using transistor pair with independent base bias for fail-safe ON/OFF confirmation. Use Value: 150 °C Tj rating and <50 nA IEBO support long-term reliability in thermally constrained pump housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BDW1T1G | Same SOT363-3 package, but hFE range 200–450; higher VCEO (50 V); not AEC-Q101 qualified. | Preferred for non-automotive industrial controls where higher gain and voltage margin are needed. | Select when AEC-Q101 is not required and tighter hFE matching is critical for analog gain stages. |
| EMT17T2R | Lower IC rating (150 mA), same VCEO (40 V), AEC-Q101 qualified; smaller hFE spread (120–270). | Used in space-constrained automotive lighting drivers where lower current suffices. | Choose when board area is more constrained than current capability and moderate gain consistency is acceptable. |
Compared with BC847BDW1T1G and EMT17T2R, the PMBT3904YS-QX uniquely balances AEC-Q101 compliance, 200 mA current capability, and broad hFE range-making it optimal for cost-sensitive, thermally demanding automotive signal switching where qualification and margin both matter.
Availability
PMBT3904YS-QX is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input stages, consumer appliance motor control, and medical infusion pump signal isolation requiring stable component supply and long lifecycle assurance.
Supply support for PMBT3904YS-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 essential components-including logic, discretes, MOSFETs, and ESD protection-serving automotive, industrial, and consumer markets.
The PMBT3904YS-QX belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, designed specifically for space-efficient, thermally robust signal switching in automotive electronics and industrial control systems.
FAQ
What is the maximum junction temperature for PMBT3904YS-QX?
The absolute maximum junction temperature (Tj) is 150 °C, verified per IEC 60134 limiting values. This rating applies under continuous operation with Ptot ≤ 350 mW on FR4 PCB and ambient ≤ 125 °C, enabling deployment in under-hood automotive environments without forced cooling.
Can PMBT3904YS-QX be used in linear amplifier configurations?
Yes-it supports linear operation with specified hFE (100–300), VBEsat (≤ 950 mV), and fT (300 MHz). However, its primary design intent is switching; for precision analog amplification, dedicated low-noise transistors (e.g., BC847B) offer better NF (5 dB typical) and tighter hFE tolerance.
Is the SOT363-3 package lead-free and RoHS compliant?
Yes-Nexperia confirms the PMBT3904YS-QX uses lead-free terminations and complies with EU RoHS Directive 2011/65/EU and REACH SVHC regulations, with homogeneous material declarations available upon request through Aetrix Electronics' compliance portal.
How does the dual-transistor layout affect thermal coupling between TR1 and TR2?
Thermal resistance data shows Rth(j-a) = 357 K/W per device-measured with both transistors active-indicating minimal thermal crosstalk. Electrical isolation between TR1 and TR2 is complete; no shared substrate paths exist, so simultaneous switching does not degrade individual device performance.
PMBT3904YS-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 (Dual)
- 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:
- 230mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PMBT3904YS-QX FAQ
1.How can I place an order for PMBT3904YS-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBT3904YS-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 PMBT3904YS-QX reliable?
The price and inventory of PMBT3904YS-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBT3904YS-QX is usually 5 days.
3.What payment methods are accepted for PMBT3904YS-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBT3904YS-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBT3904YS-QX?
PMBT3904YS-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBT3904YS-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 PMBT3904YS-QX?
For technical support, including PMBT3904YS-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBT3904YS-QX requirements.
6.How does Aetrix verify that PMBT3904YS-QX is sourced from the original manufacturer or authorized distributors?
All PMBT3904YS-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 PMBT3904YS-QX meets industry standards.
7.What is the process for return or replacement of PMBT3904YS-QX?
All PMBT3904YS-QX units undergo pre-shipment inspection (PSI). If there is an issue with PMBT3904YS-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 PMBT3904YS-QX part is unused and in its original packaging.
Return procedure for PMBT3904YS-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMBT3904YS-QX Tags
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