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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Single Bipolar Transistors

Nexperia USA Inc. NXP3875YR

Name: NXP3875YR
Brand: Nexperia USA Inc.
SKU: NXP3875YR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: NXP3875YR

Manufacturer:: Nexperia USA Inc.

Category:: Single Bipolar Transistors

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: NXP3875YR.pdf

Description:: TRANS NPN 50V 0.15A TO-236AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

NXP3875YR from Nexperia is an AEC-Q101-qualified NPN general-purpose transistor in SOT23 (TO-236AB) package, rated for 50 V V_CEO, 150 mA I_C, and DC current gain (h_FE) of 120–240 at V_CE = 6 V / I_C = 2 mA. It serves as a compact, thermally efficient switching and amplification device in automotive body control modules, industrial sensor interfaces, and consumer power management circuits.

For engineers reviewing the NXP3875YR datasheet, NXP3875YR pinout, NXP3875YR application, or NXP3875YR equivalent, this page delivers verified electrical parameters, validated SOT23 terminal mapping, automotive-grade reliability context, and direct substitution guidance for discrete BJT selection in space-constrained, high-reliability designs.

Technical Context

This NPN bipolar junction transistor operates with a maximum collector-emitter voltage of 50 V and supports continuous collector current up to 150 mA under ambient conditions ≤25 °C. Its transition frequency (f_T) reaches 80 MHz at V_CE = 10 V / I_C = 1 mA / f = 100 MHz, enabling stable small-signal amplification in low-power analog stages.

Thermal resistance from junction to ambient is 625 K/W on standard FR4 PCB, and saturation performance is characterized at I_C = 100 mA / I_B = 10 mA, delivering V_CE(sat) ≤ 250 mV and V_BE(sat) ≤ 1 V - critical for low-loss switching in 3.3 V/5 V logic-driven loads.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	50 V - Maximum safe collector-emitter voltage before breakdown; enables use in 24 V automotive supply rails with margin.
I_C	150 mA - Continuous collector current rating; supports driving LEDs, relays, and small solenoids directly from MCU GPIO.
h_FE	120–240 - DC current gain at 2 mA collector current; ensures reliable base drive sizing for predictable switching thresholds.
V_CE(sat)	≤250 mV - Low saturation voltage at 100 mA/10 mA drive; minimizes conduction loss and self-heating in high-duty-cycle switching.
f_T	80 MHz - Transition frequency; validates suitability for audio preamplifier stages and low-speed signal buffering up to ~10 MHz.
R_th(j-a)	625 K/W - Junction-to-ambient thermal resistance on standard FR4; informs derating curves for sustained operation above 25 °C ambient.
AEC-Q101	Qualified - Certified for automotive applications per stress test standard; supports deployment in non-safety-critical vehicle subsystems.

Pinout & Package

Package: SOT23 (TO-236AB), surface-mount plastic package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.45 mm lead pitch, and 0.9 mm height - optimized for automated placement and reflow soldering on dense PCBs.

Pin/Terminal	Circuit Role	Design Meaning
1	Base	Control input node; requires current-limited drive (max 30 mA DC, 100 mA pulse) to bias transistor into active/saturation region.
2	Emitter	Reference node for current flow; connected to ground or low-side return path; must maintain low-impedance connection for stable h_FE.
3	Collector	Output current path; handles switched load current up to 150 mA; requires appropriate trace width and thermal relief on PCB.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive environments including temperature cycling, humidity, and mechanical shock - reduces qualification effort for Tier 1 suppliers.
Two h_FE variants (Y/G)	NXP3875Y offers 120–240 h_FE; enables precise gain binning for consistent turn-on behavior across production batches.
Low V_CE(sat)	≤250 mV at I_C/I_B = 10; reduces power dissipation during on-state, extending battery life in portable and IoT edge nodes.
Small SOT23 footprint	1.9 mm × 1.1 mm outline; saves board area versus TO-92 or SC-70, supporting miniaturized designs without sacrificing thermal performance.
High f_T (80 MHz)	Supports linear operation up to 10 MHz signals; suitable for EMI-filtered sensor signal conditioning and low-noise preamp stages.

Applications

Automotive Body Control

Industrial Sensor Interface

Use Scenario: Driving LED status indicators and small solenoid valves in door modules and lighting controllers.

IC Role / Device Role / Timing Role: NPN switch controlling 12 V/24 V loads with MCU GPIO-level base drive.

Use Value: Low V_CE(sat) minimizes heat generation in sealed enclosures; AEC-Q101 ensures long-term reliability under thermal cycling.

Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., thermistors, potentiometers) into ADC inputs.

IC Role / Device Role / Timing Role: Common-emitter amplifier providing gain and isolation between noisy field wiring and precision measurement circuitry.

Use Value: 80 MHz f_T and 10 dB noise figure support clean signal integrity for sub-10 kHz sensor bandwidths.

Consumer Power Management

IoT Edge Node Switching

Use Scenario: Enabling/disabling auxiliary power rails (e.g., USB peripherals, display backlights) in smart home hubs.

IC Role / Device Role / Timing Role: Low-side switch controlled by 3.3 V microcontroller with minimal external components.

Use Value: 150 mA rating and SOT23 size allow integration into space-constrained PCBs while maintaining thermal headroom at 50 °C ambient.

Use Scenario: Controlling wake-up peripherals (e.g., GPS receivers, BLE radios) in battery-powered asset trackers.

IC Role / Device Role / Timing Role: High-gain (h_FE = 120–240) switch enabling ultra-low quiescent base current (<1 µA off-state leakage).

Use Value: ICBO ≤100 nA at 25 °C ensures negligible standby current drain, extending multi-year battery life.

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
BC847B,215	Same SOT23 package; h_FE = 200–450 at I_C = 2 mA; V_CEO = 45 V; not AEC-Q101 qualified.	Lacks automotive qualification; suitable for commercial-grade consumer or industrial equipment where extended temperature validation is not required.	Select when cost sensitivity outweighs automotive compliance; verify V_CEO margin for 24 V systems.
MMBT3904LT1G	SOT23; V_CEO = 40 V; I_C = 200 mA; h_FE = 100–300; AEC-Q101 qualified; higher max current but lower voltage rating.	Better for higher-current, lower-voltage switching (e.g., 5 V logic loads); less suitable for 24 V automotive domains due to 40 V V_CEO limit.	Prefer for 3.3 V/5 V embedded systems needing >150 mA; avoid in 12 V+ supply rails without derating analysis.

Compared with BC847B,215 and MMBT3904LT1G, NXP3875YR uniquely balances 50 V breakdown margin, AEC-Q101 compliance, and tightly binned h_FE - making it optimal for automotive body electronics where voltage robustness and qualification traceability are mandatory.

Availability

NXP3875YR is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor signal conditioning, and consumer power rail switching requiring stable component supply across multi-year production cycles.

Supply support for NXP3875YR 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 leader in discrete, logic, and PowerMOS semiconductors, spun off from NXP in 2017 and focused on high-volume, high-reliability components for automotive, industrial, and computing markets.

NXP3875YR belongs to Nexperia's AEC-Q101-qualified general-purpose transistor family, engineered for robust, cost-effective switching and amplification in thermally constrained, mission-critical embedded systems.

FAQ

Is NXP3875YR pin-compatible with BC847 series transistors?

Yes - NXP3875YR uses the standard SOT23 pinout (1=Base, 2=Emitter, 3=Collector), matching BC847, BC848, and MMBT3904 families. No PCB redesign is needed for drop-in replacement, though V_CEO, h_FE, and qualification differences must be verified per application.

What is the maximum allowable PCB temperature rise for continuous 150 mA operation?

At 25 °C ambient, P_tot = 200 mW and R_th(j-a) = 625 K/W yield a theoretical junction rise of 125 °C - limiting T_j to 150 °C. For continuous 150 mA, ambient must stay ≤50 °C on standard FR4; forced airflow or copper pour improves margin.

Does NXP3875YR support PWM switching at frequencies above 10 kHz?

Yes - with f_T = 80 MHz and typical switching times (t_on/t_off) <100 ns, NXP3875YR supports PWM up to 100 kHz in low-inductance loads. Base drive strength and layout parasitics dominate real-world limits, not intrinsic transistor bandwidth.

How does the h_FE binning of NXP3875YR compare to NXP3875G?

NXP3875Y specifies h_FE = 120–240 at V_CE = 6 V / I_C = 2 mA; NXP3875G is binned 200–400. Both share identical absolute ratings and package - Y variant provides tighter mid-range gain for predictable biasing in analog stages where excessive gain causes instability.

NXP3875YR Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

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:: 250mV @ 10mA, 100mA

Current - Collector Cutoff (Max):: 100nA (ICBO)

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 2mA, 6V

Power - Max:: 200 mW

Frequency - Transition:: 80MHz

Operating Temperature:: 150°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: TO-236AB

NXP3875YR FAQ

1.How can I place an order for NXP3875YR through Aetrix?

Please submit a Request for Quotation (RFQ) for NXP3875YR 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 NXP3875YR reliable?

The price and inventory of NXP3875YR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NXP3875YR is usually 5 days.

3.What payment methods are accepted for NXP3875YR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NXP3875YR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for NXP3875YR?

NXP3875YR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your NXP3875YR 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 NXP3875YR?

For technical support, including NXP3875YR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NXP3875YR requirements.

6.How does Aetrix verify that NXP3875YR is sourced from the original manufacturer or authorized distributors?

All NXP3875YR 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 NXP3875YR meets industry standards.

7.What is the process for return or replacement of NXP3875YR?

All NXP3875YR units undergo pre-shipment inspection (PSI). If there is an issue with NXP3875YR, 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 NXP3875YR part is unused and in its original packaging.

Return procedure for NXP3875YR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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