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Home > Products > Discrete Semiconductor Products > Transistors > Bipolar (BJT) > Bipolar Transistor Arrays

Nexperia USA Inc. PEMX1,115

Name: PEMX1,115
Brand: Nexperia USA Inc.
SKU: PEMX1,115
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: PEMX1,115

Manufacturer:: Nexperia USA Inc.

Category:: Bipolar Transistor Arrays

Package:: SOT-563, SOT-666

Datasheet:: PEMX1,115.pdf

Description:: TRANS 2NPN 40V 100MA SOT-666

Quantity:: RFQ Add To RFQ list

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Inventory:7,470

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Product details

Overview

PEMX1 from Nexperia is an NPN/NPN general-purpose double transistor in a SOT666 surface-mount package, providing two matched low-voltage switching transistors with V_CEO = 40 V, I_C = 100 mA per device, and h_FE = 120 (typ.) at I_C = 1 mA. It replaces two discrete SC-75/SC-89 transistors on the same PCB area and is used in compact consumer and industrial signal switching circuits.

For engineers reviewing the PEMX1 datasheet, PEMX1 pinout, PEMX1 application, or PEMX1 equivalent, key selection criteria include dual-transistor integration in ultra-small footprint, verified thermal resistance (R_th(j-a) = 416 K/W), per-transistor DC current gain, collector-emitter saturation voltage (V_CEsat ≤ 200 mV), and reflow-soldering compatibility per JEDEC J-STD-020.

Technical Context

The PEMX1 integrates two independent NPN transistors sharing no internal connection-TR1 (pins 1–2–6) and TR2 (pins 3–4–5)-with fully isolated emitter-base-collector paths. Each transistor operates within IEC 60134 absolute maximum ratings, including V_CBO = 50 V, V_EBO = 5 V, and T_j ≤ 150 °C.

Its SOT666 package enables high-density placement with 0.5 mm pitch and 1.6 mm × 1.2 mm body size. Thermal performance is specified for FR4 PCB mounting with single-sided copper, and reflow soldering is the only recommended assembly method per manufacturer guidelines.

Key Specifications

Parameter	Value and Actual Design Meaning
V_CEO	40 V per transistor - defines maximum safe collector-emitter blocking voltage under open-base condition
I_C	100 mA per transistor - continuous DC collector current rating at T_amb ≤ 25 °C
h_FE	120 (min) at V_CE = 6 V, I_C = 1 mA - ensures predictable DC amplification in bias-sensitive linear or switching designs
V_CEsat	≤ 200 mV at I_C = 50 mA, I_B = 5 mA - enables low-loss saturation in digital logic interface and power control stages
P_tot (device)	300 mW at T_amb ≤ 25 °C - total dissipation limit for both transistors combined on standard FR4 PCB
f_T	100 MHz at V_CE = 12 V, I_C = 2 mA - supports RF-coupled pre-amplifier and high-speed switching up to ~10 MHz practical bandwidth
R_th(j-a)	416 K/W - junction-to-ambient thermal resistance under defined FR4 mounting conditions

Pinout & Package

SOT666 is a 6-lead ultra-thin surface-mount plastic package measuring 1.6 mm × 1.2 mm × 0.55 mm with 0.5 mm lead pitch. It features flat leads and a pin 1 index marker on the top surface.

Pin/Terminal	Circuit Role	Design Meaning
1	Emitter of TR1	Low-impedance current sink node for first transistor; referenced to common ground or load return path
2	Base of TR1	Control input for TR1; requires current-limited drive to achieve target I_C based on h_FE
3	Collector of TR2	High-side output node for second transistor; connects to supply rail or active load
4	Emitter of TR2	Current sink node for TR2; electrically isolated from E1 but shares same package thermal mass
5	Base of TR2	Independent control input for TR2; decoupled from B1 by physical separation and layout
6	Collector of TR1	High-side output for TR1; routed separately from C2 to avoid cross-conduction in dual-switch topologies

Key Features

Feature	Design Value
Dual NPN topology	Two fully isolated transistors enable independent switching or push-pull driver stages without external isolation components
Ultra-small footprint	1.6 mm × 1.2 mm SOT666 occupies <50% area of two SC-75 devices - critical for space-constrained wearables and IoT sensors
300 mW total dissipation	Enables simultaneous operation of both transistors at moderate current levels without derating on standard FR4
Reflow-compatible construction	Qualified for JEDEC J-STD-020 moisture sensitivity level 1 - supports automated high-volume assembly without baking

Applications

LED Driver Circuit

Level-Shifting Interface

Use Scenario: Driving multiple low-current indicator LEDs from 3.3 V microcontroller GPIOs with current limiting via base resistors.

IC Role / Device Role / Timing Role: Dual NPN switch providing independent on/off control for two LED channels with minimal board area.

Use Value: Eliminates need for two separate SOT-23 transistors, reducing PCB real estate by 42% and pick-and-place cycle count by one placement operation.

Use Scenario: Translating 1.8 V logic signals to 5 V TTL-compatible levels in mixed-voltage sensor subsystems.

IC Role / Device Role / Timing Role: Active pull-up stage using TR1 as level shifter and TR2 as enable gate for bidirectional control.

Use Value: Achieves sub-100 ns propagation delay with guaranteed V_CEsat ≤ 200 mV, preserving noise margin across voltage domains.

Push-Pull Output Stage

Compact Relay Driver

Use Scenario: Generating complementary drive signals for small-signal MOSFET gates in half-bridge motor control ICs.

IC Role / Device Role / Timing Role: TR1 and TR2 configured as emitter-follower pair to source/sink gate charge with matched turn-on characteristics.

Use Value: Matched h_FE and thermal coupling minimize shoot-through risk during transitions; R_th(j-a) allows sustained 50 mA pulsed operation.

Use Scenario: Activating 5 V/10 mA coil relays from battery-powered microcontrollers with limited I/O drive strength.

IC Role / Device Role / Timing Role: High-gain NPN switch (TR1) driving relay coil while TR2 monitors coil current via sense resistor for fault detection.

Use Value: Enables dual-function integration (drive + sensing) in same footprint, reducing BOM count and enabling compact portable equipment designs.

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-transistor switching applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
PEMT1	PNP/PNP complement - opposite polarity, same SOT666 package and pinout mapping	Required where complementary switching (e.g., totem-pole outputs) or high-side sourcing is needed instead of low-side sinking	Select PEMT1 when designing PNP-based logic inverters or high-side load switches requiring matched thermal and layout behavior
BC846BDW1T1G	ON Semiconductor dual NPN in SOT-363 - identical pinout but higher h_FE (200 min), lower V_CEO (65 V), and larger 2.1 mm × 1.25 mm footprint	Preferred in high-gain analog amplifier stages or where higher breakdown voltage is required despite larger PCB area	Choose BC846BDW1T1G when h_FE > 200 or V_CEO ≥ 65 V is mandatory; accept 31% larger board area and different thermal resistance

Compared with PEMT1 and BC846BDW1T1G, PEMX1 offers optimal balance of ultra-compact size, verified 40 V breakdown, and consistent 120 h_FE - making it preferred for space-constrained digital switching where polarity and footprint are fixed constraints.

Availability

PEMX1 is available at Aetrix Electronics and suitable for LED driver circuits, level-shifting interfaces, push-pull output stages, and compact relay drivers requiring stable component supply and long-term production continuity.

Supply support for PEMX1 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 manufacturing rooted in process technology leadership and automotive-grade quality systems.

The PEMX1 belongs to Nexperia's general-purpose bipolar transistor family, designed specifically for miniaturized consumer, computing, and industrial control applications where dual-device integration and SMT scalability are essential.

FAQ

What is the maximum continuous collector current per transistor in PEMX1?

The PEMX1 specifies a maximum continuous collector current (I_C) of 100 mA per transistor at ambient temperature ≤ 25 °C, with peak current capability up to 200 mA. This rating assumes operation within the Absolute Maximum Ratings and proper PCB thermal management per the datasheet's FR4 mounting conditions.

Can PEMX1 be used in linear amplification applications?

Yes - PEMX1 supports linear operation with h_FE = 120 (min) at V_CE = 6 V and I_C = 1 mA, and f_T = 100 MHz. However, its 300 mW total power dissipation and thermal resistance (416 K/W) limit usable linear output power; it is best suited for low-level pre-amplification or bias-stable switching rather than high-power analog stages.

Is PEMX1 pin-compatible with any other dual-transistor packages?

No - PEMX1 uses the proprietary SOT666 footprint (1.6 mm × 1.2 mm, 0.5 mm pitch) and non-standard pin assignment (E1-B1-C2-E2-B2-C1). It is not pin-compatible with SOT-363, SC-74, or SC-88 packages. Layout redesign is required when substituting from or to those packages.

Does PEMX1 have automotive qualification?

No - according to Nexperia's revision history and legal disclaimers, PEMX1 is explicitly marked as non-automotive qualified. It has not undergone AEC-Q101 stress testing or automotive-specific reliability validation, and its use in safety-critical or vehicle-mounted systems is not supported by the manufacturer.

PEMX1,115 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: -

Package/Case:: SOT-563, SOT-666

Packaging:: Tape & Reel (TR)

Product Status:: Active

Transistor Type:: 2 NPN (Dual)

Current - Collector (Ic) (Max):: 100mA

Voltage - Collector Emitter Breakdown (Max):: 40V

Vce Saturation (Max) @ Ib, Ic:: 200mV @ 5mA, 50mA

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

DC Current Gain (hFE) (Min) @ Ic, Vce:: 120 @ 1mA, 6V

Power - Max:: 300mW

Frequency - Transition:: 100MHz

Operating Temperature:: 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-666

PEMX1,115 FAQ

1.How can I place an order for PEMX1,115 through Aetrix?

Please submit a Request for Quotation (RFQ) for PEMX1,115 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 PEMX1,115 reliable?

The price and inventory of PEMX1,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PEMX1,115 is usually 5 days.

3.What payment methods are accepted for PEMX1,115?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PEMX1,115 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for PEMX1,115?

PEMX1,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your PEMX1,115 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 PEMX1,115?

For technical support, including PEMX1,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PEMX1,115 requirements.

6.How does Aetrix verify that PEMX1,115 is sourced from the original manufacturer or authorized distributors?

All PEMX1,115 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 PEMX1,115 meets industry standards.

7.What is the process for return or replacement of PEMX1,115?

All PEMX1,115 units undergo pre-shipment inspection (PSI). If there is an issue with PEMX1,115, 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 PEMX1,115 part is unused and in its original packaging.

Return procedure for PEMX1,115:

1.Submit a request within 90 days.

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

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