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Nexperia USA Inc. 2PC4081S-QF
- Part No.:
- 2PC4081S-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
2PC4081S-QF.pdf
- Description:
- TRANS NPN 50V 0.15A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:6,549
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Product details
Overview
2PC4081S-QF from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT323 (SC-70) package, rated for 50 V VCEO, 150 mA IC, and DC current gain (hFE) of 270–560 at IC = 1 mA. It serves as a low-voltage, low-current switching and small-signal amplification device in automotive body control modules and sensor interface circuits.
For engineers reviewing the 2PC4081S-QF datasheet, 2PC4081S-QF pinout, 2PC4081S-QF application, or 2PC4081S-QF equivalent, key selection criteria include its AEC-Q101 qualification, SC-70 thermal resistance (625 K/W), VCE(sat) ≤ 400 mV at IC = 50 mA/IB = 5 mA, fT = 100 MHz, and complementary PNP pairing with 2PA1576S-Q.
Technical Context
This discrete NPN bipolar junction transistor operates in linear and saturation regions for analog amplification and digital on/off switching. Its design targets stable hFE across −55 °C to +150 °C ambient range and low VBE(sat) (≤1.2 V) at IC/IB = 10, enabling efficient drive in space-constrained automotive PCBs.
Thermal performance is defined for FR4 boards with single-sided copper: Rth(j-a) = 625 K/W limits continuous power dissipation to 200 mW at Tamb ≤ 25 °C. Absolute maximum ratings include VCBO = 60 V, VEBO = 7 V, and peak IC = 200 mA, supporting transient robustness in 12 V vehicle systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V - Maximum collector-emitter voltage before breakdown; supports 12 V automotive rail with margin. |
| IC | 150 mA - Continuous collector current rating; suitable for LED drivers and logic-level signal switching. |
| hFE | 270–560 - DC current gain at VCE = 6 V, IC = 1 mA; ensures reliable base drive sizing in amplifier stages. |
| VCE(sat) | ≤400 mV - Collector-emitter saturation voltage at IC = 50 mA, IB = 5 mA; minimizes conduction loss in switch mode. |
| fT | 100 MHz - Transition frequency at VCE = 12 V, IC = 2 mA; enables RF-coupled pre-amplifier use up to ~10 MHz. |
| Rth(j-a) | 625 K/W - Junction-to-ambient thermal resistance on standard FR4; defines derating curve above 25 °C ambient. |
| AEC-Q101 | Qualified - Certified for automotive applications per stress test standard; supports under-hood and cabin ECUs. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-pin, 1.3 mm pitch, 2.0 mm × 1.25 mm × 0.95 mm body; optimized for reflow soldering with defined footprint per Figure 6.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base (B) | Current-controlled input node; requires series resistor to limit IB ≤ 200 mA peak per absolute max rating. |
| 2 | Emitter (E) | Common reference terminal; connects to ground or low-side return path in common-emitter configurations. |
| 3 | Collector (C) | Output current sink node; handles switched load current up to 150 mA continuous with thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive temperature range (−55 °C to +150 °C) and humidity/stress testing; reduces qualification overhead for Tier 1 designs. |
| Low VCE(sat) | ≤400 mV at IC/IB = 10 ensures <100 mW conduction loss at 100 mA, improving efficiency in battery-powered modules. |
| High hFE consistency | 270–560 range at 25 °C with minimal drift over temperature (Fig. 2) simplifies bias network design across operating conditions. |
| SC-70 footprint | Compact 2.0 mm × 1.25 mm outline enables high-density placement in ADAS camera modules and door ECU PCBs. |
Applications
| Automotive Door Module Switching | Engine Coolant Temperature Sensor Interface |
|---|---|
|
Use Scenario: Driving resistive loads (e.g., window motor relays, LED status indicators) in door control units. IC Role / Device Role / Timing Role: NPN switch controlling 12 V loads via microcontroller GPIO with current gain buffering. Use Value: VCE(sat) ≤ 400 mV minimizes heat generation during sustained actuation; AEC-Q101 ensures reliability over 15-year vehicle life. |
Use Scenario: Amplifying low-level analog signals from thermistor-based coolant sensors before ADC sampling. IC Role / Device Role / Timing Role: Small-signal common-emitter amplifier stage providing gain stability across −40 °C to +125 °C engine bay temperatures. Use Value: hFE variation <±20% from −55 °C to +150 °C (Fig. 2) maintains consistent signal scaling without recalibration. |
| Body Control Unit LED Driver | Occupant Detection System Signal Conditioning |
|
Use Scenario: Constant-current sinking for interior map lights and dashboard backlighting LEDs. IC Role / Device Role / Timing Role: Linear-mode current regulator using emitter degeneration resistor and base voltage reference. Use Value: 150 mA IC rating supports multi-LED strings; low VBE(sat) (≤1.2 V) preserves headroom for dimming control. |
Use Scenario: Buffering and level-shifting capacitive seat sensor outputs to MCU input pins. IC Role / Device Role / Timing Role: High-input-impedance emitter-follower buffer isolating sensitive analog front-end from noisy digital domains. Use Value: fT = 100 MHz provides >10× bandwidth margin for 1 MHz sensor excitation signals, reducing phase distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN general-purpose transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 2PC4081S-Q | Base part: AEC-Q101 qualified, hFE 270–560, VCEO = 50 V | Automotive-grade switching/amplification | Default choice for new automotive designs requiring qualification evidence. |
| BC846BW | Non-AEC-Q101; hFE 110–220; same SOT323 package and pinout | Industrial/commercial consumer electronics only | Select when AEC-Q101 is not required and lower gain suffices for cost-sensitive non-automotive BOMs. |
Compared with BC846BW, 2PC4081S-QF delivers higher hFE and automotive qualification but shares identical SC-70 footprint-enabling drop-in replacement where qualification is mandated, while BC846BW offers cost advantage in non-automotive contexts.
Availability
2PC4081S-QF is available at Aetrix Electronics and suitable for automotive door modules, engine sensor interfaces, body control unit LED drivers, and occupant detection systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 2PC4081S-QF 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 semiconductors, delivering high-performance, reliable components for automotive, industrial, and mobile markets with emphasis on efficiency and miniaturization.
The 2PC4081S-QF belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered specifically for robust, space-efficient switching and amplification in harsh automotive environments.
FAQ
Is 2PC4081S-QF pin-compatible with BC846BW?
Yes, both devices use identical SOT323 (SC-70) package with pin 1 = Base, pin 2 = Emitter, pin 3 = Collector. Layout reuse is possible, but note that 2PC4081S-QF has higher hFE (270–560 vs. 110–220) and AEC-Q101 qualification-requiring verification of gain-dependent circuit margins in legacy designs.
What is the maximum allowable PCB copper area for thermal relief with 2PC4081S-QF?
No minimum copper area is specified, but thermal resistance Rth(j-a) = 625 K/W assumes standard FR4 with single-sided 1 oz copper and tin-plated finish. Increasing copper area beyond the recommended 2.65 mm × 2.35 mm solder land (per Fig. 6) reduces thermal resistance, enabling >150 mA operation at elevated ambient temperatures.
Does 2PC4081S-QF support pulse operation beyond its 150 mA DC rating?
Yes-peak collector current ICM is rated at 200 mA for short pulses (tp ≤ 300 µs, duty cycle δ ≤ 0.02). This supports intermittent loads like solenoid pre-charge or diagnostic beeper drivers, provided average power remains within 200 mW derated by ambient temperature.
How does the marking code "Z%S" identify 2PC4081S-QF on the device body?
The top-side marking "Z%S" decodes as: "Z" = device type identifier for 2PC4081S-Q series, "%" = placeholder for manufacturing site code (e.g., "A" for Nijmegen), and "S" = package variant indicator for SOT323. Full traceability requires cross-referencing batch code with Nexperia's lot documentation.
2PC4081S-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 150 mA
- Voltage - Collector Emitter Breakdown (Max):
- 50 V
- Vce Saturation (Max) @ Ib, Ic:
- 400mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 100nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 270 @ 1mA, 6V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 100MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
2PC4081S-QF FAQ
1.How can I place an order for 2PC4081S-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for 2PC4081S-QF 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 2PC4081S-QF reliable?
The price and inventory of 2PC4081S-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 2PC4081S-QF is usually 5 days.
3.What payment methods are accepted for 2PC4081S-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 2PC4081S-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 2PC4081S-QF?
2PC4081S-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 2PC4081S-QF 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 2PC4081S-QF?
For technical support, including 2PC4081S-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 2PC4081S-QF requirements.
6.How does Aetrix verify that 2PC4081S-QF is sourced from the original manufacturer or authorized distributors?
All 2PC4081S-QF 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 2PC4081S-QF meets industry standards.
7.What is the process for return or replacement of 2PC4081S-QF?
All 2PC4081S-QF units undergo pre-shipment inspection (PSI). If there is an issue with 2PC4081S-QF, 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 2PC4081S-QF part is unused and in its original packaging.
Return procedure for 2PC4081S-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
2PC4081S-QF Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
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MMBT3906-7-F
Diodes Incorporated
-
MMBT3904-TP
Micro Commercial Co
-
MMBT2222A-7-F
Diodes Incorporated
-
BC846BLT1G
onsemi
-
BC847B,215
Nexperia USA Inc.
-
SMMBT3904LT1G
onsemi
-
MMBT2222A-TP
Micro Commercial Co
-
MMBTA06LT1G
onsemi
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MMBT2222ALT1G
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