Nexperia USA Inc. PUMX2,125
- Part No.:
- PUMX2,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
PUMX2,125.pdf
- Description:
- TRANS 2NPN 50V 150MA 6-TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PUMX2 from Nexperia is an NPN/NPN general-purpose double transistor in a SOT363-3 (TSSOP6) package, rated for 50 V VCEO, 150 mA IC, and DC current gain (hFE) of 120–560 per transistor; used for compact dual-switching or amplification in space-constrained automotive and industrial control circuits.
For engineers reviewing the PUMX2 datasheet, PUMX2 pinout, PUMX2 application, or PUMX2 equivalent, key selection criteria include dual-transistor integration, AEC-Q101 qualification, thermal resistance (417 K/W per device), and matching hFE spread across both transistors in one package.
Technical Context
The PUMX2 integrates two independent NPN transistors sharing a single 6-pin TSSOP6 (SOT363-3) surface-mount package, with isolated emitter-base-collector terminals for each device. Pin configuration supports separate biasing and load connections without internal coupling.
It operates within −65 °C to +150 °C ambient range, with junction temperature limited to 150 °C and total device power dissipation up to 300 mW on FR4 PCB. Transition frequency fT is 100 MHz at VCE = 12 V, IC = 2 mA, confirming suitability for low-to-moderate speed switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 50 V maximum - defines safe collector-emitter voltage swing before breakdown in open-base condition |
| IC | 150 mA continuous - sets max steady-state collector current per transistor without derating |
| hFE | 120–560 at VCE = 6 V, IC = 1 mA - enables predictable DC bias design across production lots |
| VCE(sat) | 250 mV max at IC = 50 mA, IB = 5 mA - ensures low conduction loss in saturated switching applications |
| fT | 100 MHz - supports signal amplification or switching up to ~10 MHz practical bandwidth |
| Rth(j-a) | 417 K/W per device - determines thermal rise above ambient under full 300 mW dissipation on standard FR4 |
Pinout & Package
SOT363-3 (TSSOP6) is a 6-lead, 1.3 mm × 2.2 mm surface-mount plastic package with gull-wing leads, optimized for automated placement and reflow soldering on fine-pitch PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | E1 | Emitter of transistor TR1 - connects to low-side reference or current sink path |
| 2 | E2 | Emitter of transistor TR2 - electrically isolated from E1; enables independent dual-channel operation |
| 3 | B2 | Base of transistor TR2 - accepts drive signal for second transistor without crosstalk to TR1 |
| 4 | C2 | Collector of transistor TR2 - high-side output node for TR2; routed separately from C1 |
| 5 | B1 | Base of transistor TR1 - driven independently; no shared base connection between TR1 and TR2 |
| 6 | C1 | Collector of transistor TR1 - primary high-side output for first transistor; pin 6 is opposite pin 1 in standard TSSOP6 orientation |
Key Features
| Feature | Design Value |
|---|---|
| Dual NPN topology in single package | Reduces board area by ~40% vs. two discrete SOT23 transistors and eliminates two placement steps |
| AEC-Q101 qualification | Validated for automotive under-hood and body-control modules requiring reliability over temperature and lifetime |
| Matched hFE range (120–560) | Enables consistent gain tracking between channels in differential or mirrored amplifier configurations |
| Low VCE(sat) (≤250 mV) | Minimizes power loss and self-heating in high-duty-cycle digital switching applications |
Applications
| Automotive Door Module | Industrial PLC Input Stage |
|---|---|
Use Scenario: Driving window lift motor direction logic and interior lamp dimming via PWM-controlled loads. IC Role / Device Role / Timing Role: Dual NPN switch controlling H-bridge enable and LED current sink paths. Use Value: Single-package solution reduces PCB footprint and improves channel-to-channel timing consistency versus discrete pairs. | Use Scenario: Level-shifting and buffering 24 V DC sensor inputs into 3.3 V microcontroller GPIOs. IC Role / Device Role / Timing Role: Signal conditioning transistor pair for optocoupler input isolation and pull-up interface. Use Value: Matched hFE ensures uniform response across multiple input channels under varying temperature conditions. |
| Consumer Appliance Control Board | Medical Diagnostic Instrument Fan Control |
Use Scenario: Managing relay coil drive and buzzer activation in washing machine main control unit. IC Role / Device Role / Timing Role: General-purpose switching element for inductive and resistive loads with shared ground return. Use Value: AEC-Q101 qualification provides extended reliability margin beyond consumer-grade requirements. | Use Scenario: Regulating cooling fan speed using PWM-driven transistor switches in portable ultrasound units. IC Role / Device Role / Timing Role: Low-saturation switch enabling precise duty-cycle control without thermal runaway risk. Use Value: 250 mV VCE(sat) limits power dissipation to <12.5 mW at 50 mA, supporting fan control in thermally constrained enclosures. |
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 (narrower); lower fT (120 MHz typical vs. 100 MHz min) | Less gain variation across lots; slightly higher small-signal bandwidth | Preferred where tighter hFE binning is required and automotive qualification is not mandatory |
| MBT3904DW1T2G | Higher VCEO (60 V), same IC rating; AEC-Q101 qualified; hFE 100–300 | Better voltage headroom for 48 V systems; lower gain spread but reduced max hFE | Select when operating near 42 V rail or needing wider safety margin on collector voltage |
Compared with BC847BDW1T1G and MBT3904DW1T2G, the PUMX2 offers the widest hFE range (120–560) and lowest guaranteed VCE(sat), making it optimal for cost-sensitive, thermally constrained dual-switch designs where gain flexibility and low conduction loss are prioritized over tight hFE matching or ultra-high voltage tolerance.
Availability
PUMX2 is available at Aetrix Electronics and suitable for automotive door modules, industrial PLC input stages, consumer appliance control boards, and medical diagnostic instrument fan control requiring stable component supply and long-term lifecycle support.
Supply support for PUMX2 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, delivering high-performance, reliable discrete, logic, and MOSFET devices for automotive, industrial, and consumer markets.
The PUMX2 belongs to Nexperia's general-purpose bipolar transistor product line, engineered for space-efficient dual-transistor integration in cost-sensitive, thermally constrained applications requiring AEC-Q101 reliability.
FAQ
Is PUMX2 pin-compatible with other SOT363-3 dual transistors?
Yes - PUMX2 uses standard TSSOP6 (SOT363-3) pinout: pins 1/E1, 2/E2, 3/B2, 4/C2, 5/B1, 6/C1. This matches industry-standard dual-NPN layouts including BC847BDW1T1G and MBT3904DW1T2G, enabling direct PCB footprint reuse where electrical specs align.
What is the maximum allowable power dissipation for PUMX2 in a real-world PCB layout?
At Tamb ≤ 25 °C on a standard FR4 PCB with single-sided copper and tin-plated finish, PUMX2's total device power dissipation is rated at 300 mW. Derating begins above 25 °C at 2.4 mW/°C, reaching zero dissipation at 150 °C junction temperature.
Does PUMX2 support simultaneous conduction of both transistors at full rated current?
Yes - the 300 mW total device power rating applies when both transistors operate concurrently. At 150 mA per transistor and 250 mV VCE(sat), combined conduction loss is 75 mW, well within thermal limits and allowing significant design margin for ambient temperature rise or PCB copper reduction.
How does AEC-Q101 qualification impact PUMX2's use in non-automotive applications?
AEC-Q101 qualification subjects PUMX2 to accelerated stress tests (HTOL, TC, UHAST, etc.) beyond standard industrial requirements, resulting in proven robustness against thermal cycling, humidity, and voltage surge - making it ideal for any mission-critical or long-lifecycle industrial, medical, or infrastructure application where field reliability is paramount.
PUMX2,125 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):
- 150mA
- Voltage - Collector Emitter Breakdown (Max):
- 50V
- Vce Saturation (Max) @ Ib, Ic:
- 250mV @ 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP
PUMX2,125 FAQ
1.How can I place an order for PUMX2,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for PUMX2,125 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 PUMX2,125 reliable?
The price and inventory of PUMX2,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PUMX2,125 is usually 5 days.
3.What payment methods are accepted for PUMX2,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PUMX2,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PUMX2,125?
PUMX2,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PUMX2,125 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 PUMX2,125?
For technical support, including PUMX2,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PUMX2,125 requirements.
6.How does Aetrix verify that PUMX2,125 is sourced from the original manufacturer or authorized distributors?
All PUMX2,125 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 PUMX2,125 meets industry standards.
7.What is the process for return or replacement of PUMX2,125?
All PUMX2,125 units undergo pre-shipment inspection (PSI). If there is an issue with PUMX2,125, 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 PUMX2,125 part is unused and in its original packaging.
Return procedure for PUMX2,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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