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Nexperia USA Inc. PMBTA42DS-QH
- Part No.:
- PMBTA42DS-QH
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- SC-74, SOT-457
- Datasheet:
-
PMBTA42DS-QH.pdf
- Description:
- TRANS 2NPN 300V 100MA 6-TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,799
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Product details
Overview
PMBTA42DS-QH from Nexperia is a dual NPN high-voltage transistor in a single SOT457 (TSOP6) package, configured as two electrically isolated transistors with 300 V VCEO, 100 mA IC, and AEC-Q101 qualification. It serves as a compact, automotive-grade solution for high-side/low-side switching and voltage regulation in space-constrained PCBs.
For engineers reviewing the PMBTA42DS-QH datasheet, PMBTA42DS-QH pinout, PMBTA42DS-QH application, or PMBTA42DS-QH equivalent, key selection criteria include per-transistor breakdown voltage, thermal resistance on FR4 vs. ceramic PCBs, dual-isolation integrity, and AEC-Q101 compliance for automotive power control circuits.
Technical Context
This device integrates two discrete NPN transistors in one monolithic die with fully isolated collector-emitter-base terminals-no shared substrate or internal coupling. Each transistor supports independent biasing, with identical absolute maximum ratings: 300 V VCEO, 100 mA continuous IC, and 200 mA peak ICM.
Thermal performance varies significantly by mounting: Rth(j-a) ranges from 278 K/W (ceramic PCB) to 431 K/W (standard FR4), directly impacting derating in automotive ambient conditions up to 150 °C. DC current gain hFE is specified at 25–40 (IC = 1–30 mA), with VCEsat ≤ 500 mV at IC/IB = 5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 300 V - Enables direct interface with 230 VAC-derived rails or telecom line interfaces without external snubbing. |
| IC | 100 mA - Supports medium-current switching in CRT flyback drivers or automotive LED matrix controls. |
| hFE | 25–40 @ IC = 1–30 mA - Defines base drive requirements for stable linear or saturated operation in regulator feedback paths. |
| VCEsat | ≤ 500 mV @ IC/IB = 5 - Limits conduction loss to < 50 mW per transistor at rated current, critical for thermally constrained modules. |
| Rth(j-a) | 278–431 K/W - Dictates maximum power dissipation (≤ 450 mW on FR4) before junction exceeds 150 °C in automotive underhood environments. |
| AEC-Q101 | Qualified - Confirms suitability for automotive powertrain and body electronics without additional stress screening. |
Pinout & Package
SOT457 (TSOP6) surface-mount plastic package: 6-lead, 1.9 mm × 2.7 mm footprint, 0.95 mm height, with gull-wing leads and pin 1 index marker.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of Transistor 1 - Reference node for TR1's current path; must be routed with low-inductance trace in high-dV/dt applications. |
| 2 | B2 | Base of Transistor 2 - Independent control input for TR2; no electrical connection to TR1's base (pin 5). |
| 3 | C2 | Collector of Transistor 2 - High-voltage output node for TR2; rated for 300 V standoff with open-base configuration. |
| 4 | E2 | Emitter of Transistor 2 - Isolated return path for TR2; enables floating or referenced emitter configurations. |
| 5 | B1 | Base of Transistor 1 - Dedicated control terminal for TR1; electrically separated from all TR2 pins. |
| 6 | C1 | Collector of Transistor 1 - Primary high-voltage switching node for TR1; shares same voltage rating and thermal path as C2. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated NPN transistors | Zero internal coupling between TR1 and TR2 enables independent high-side/low-side switching without cross-talk or latch-up risk. |
| 300 V VCEO per transistor | Supports direct use in 230 VAC auxiliary supplies, telecom line interface protection, and CRT horizontal deflection circuits. |
| AEC-Q101 qualification | Validated for automotive temperature cycling (-55 °C to +150 °C), humidity, and mechanical shock per discrete semiconductor standard. |
| SOT457 package thermal design | Optimized pad layout allows 700 mW total device dissipation on ceramic PCB (Al2O3), enabling higher-power dual-switch operation. |
Applications
| Automotive High/Low-Side Switch | Telecom Line Interface |
|---|---|
Use Scenario: Controlling solenoid valves and LED clusters in vehicle body control modules where space and thermal budget are constrained. IC Role / Device Role / Timing Role: Dual transistor acts as independent high-side driver (TR1) and low-side switch (TR2), eliminating need for two separate SMD packages. Use Value: Reduces PCB area by 40% versus discrete SOT23 pairs while maintaining 300 V isolation and AEC-Q101 reliability. |
Use Scenario: Overvoltage protection and signal conditioning in analog telephone line interface cards (LICs) handling ring signals up to 170 V peak. IC Role / Device Role / Timing Role: TR1 regulates line voltage; TR2 provides fast clamping during surge events, leveraging matched VCEO and low VCEsat. Use Value: Single-package solution meets GR-909 lightning surge immunity requirements without external TVS diodes. |
| CRT TV Horizontal Deflection | Industrial Monitor Power Supply |
Use Scenario: Driving flyback transformer primary in legacy CRT television horizontal output stages requiring high-voltage switching and fast recovery. IC Role / Device Role / Timing Role: TR1 functions as main switching transistor; TR2 serves as damper or snubber control element synchronized to horizontal scan timing. Use Value: Matched hFE and VCEsat across both transistors ensures consistent timing and reduced EMI in 15.734 kHz switching. |
Use Scenario: Regulating auxiliary 12 V rail in medical-grade LCD monitor power supplies where long-term stability and creepage distance are critical. IC Role / Device Role / Timing Role: TR1 implements series pass regulation; TR2 monitors output via optocoupler feedback loop, enabling precise ±1% voltage control. Use Value: Dual isolation prevents ground-loop noise injection into sensitive analog video circuitry while meeting IEC 60601 creepage standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual NPN high-voltage switching applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZXTDA42DXTC | Higher hFE (100 min), lower VCEsat (300 mV), but only 200 V VCEO; SOT89-3 package (larger, higher thermal mass). | Not suitable for 300 V telecom or CRT applications; better for 24–48 V industrial regulators needing higher gain. | Select when gain and saturation voltage dominate over voltage rating and board space. |
| BC847BDW1T1G | Lower voltage rating (45 V VCEO), smaller SOT363 package, AEC-Q101 qualified, but no dual-isolation guarantee (shared substrate). | Acceptable for low-voltage automotive logic-level switching; unsuitable for high-side switching above 50 V or surge-prone lines. | Choose only for cost-sensitive, low-voltage (< 50 V), non-isolated dual-switch needs. |
Compared with ZXTDA42DXTC and BC847BDW1T1G, PMBTA42DS-QH uniquely delivers 300 V isolation per transistor in a 6-lead SOT457, making it the sole option for space-constrained, high-voltage automotive and telecom designs requiring true dual independence.
Availability
PMBTA42DS-QH is available at Aetrix Electronics and suitable for automotive body control modules, telecom line interface cards, CRT TV deflection circuits, and industrial monitor power supplies requiring stable component supply and AEC-Q101 assurance.
Supply support for PMBTA42DS-QH 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.
PMBTA42DS-QH belongs to Nexperia's AEC-Q101-qualified high-voltage bipolar transistor family, engineered specifically for automotive power switching, telecom surge protection, and legacy display power systems demanding robust 300 V capability in minimal footprint.
FAQ
What is the maximum allowable junction temperature for PMBTA42DS-QH?
The absolute maximum junction temperature (Tj) is 150 °C, as defined in the Absolute Maximum Ratings table. Operation beyond this limit risks permanent degradation of hFE, leakage current, and bond wire integrity. Derating curves in the datasheet require ambient temperature reduction by 1.14 °C/mW above 25 °C on FR4 PCBs.
Can PMBTA42DS-QH be used in linear regulator applications?
Yes-its 300 V VCEO, 100 mA IC, and 40–25 hFE range support series-pass linear regulation up to 200 V input. However, thermal design must account for Ptot limits: max 450 mW on standard FR4, requiring heatsinking or forced airflow above 150 mW dissipation.
Is pin 1 the emitter of TR1 in all manufacturing lots?
Yes-Nexperia's official pinning diagram (Figure 6, datasheet v.1, 20230720) confirms pin 1 is E1 across all PMBTA42DS-QH lots. The marking code "P4" is laser-etched adjacent to pin 1, and the TSOP6 outline shows consistent 1–6 numbering with E1–C1–B2–E2–B1–C1 sequence.
Does PMBTA42DS-QH support pulsed operation beyond its DC current rating?
Yes-peak collector current ICM is rated at 200 mA for single pulses ≤ 1 ms, provided duty cycle remains ≤ 1% and average power stays within Ptot limits. This enables short-duration surge handling in telecom line protection and CRT flyback reset phases.
PMBTA42DS-QH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-74, SOT-457
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- 2 NPN
- Current - Collector (Ic) (Max):
- 100mA
- Voltage - Collector Emitter Breakdown (Max):
- 300V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 2mA, 20mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 40 @ 30mA, 10V
- Power - Max:
- 290mW
- Frequency - Transition:
- 50MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSOP
PMBTA42DS-QH FAQ
1.How can I place an order for PMBTA42DS-QH through Aetrix?
Please submit a Request for Quotation (RFQ) for PMBTA42DS-QH 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 PMBTA42DS-QH reliable?
The price and inventory of PMBTA42DS-QH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMBTA42DS-QH is usually 5 days.
3.What payment methods are accepted for PMBTA42DS-QH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMBTA42DS-QH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMBTA42DS-QH?
PMBTA42DS-QH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMBTA42DS-QH 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 PMBTA42DS-QH?
For technical support, including PMBTA42DS-QH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMBTA42DS-QH requirements.
6.How does Aetrix verify that PMBTA42DS-QH is sourced from the original manufacturer or authorized distributors?
All PMBTA42DS-QH 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 PMBTA42DS-QH meets industry standards.
7.What is the process for return or replacement of PMBTA42DS-QH?
All PMBTA42DS-QH units undergo pre-shipment inspection (PSI). If there is an issue with PMBTA42DS-QH, 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 PMBTA42DS-QH part is unused and in its original packaging.
Return procedure for PMBTA42DS-QH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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