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Nexperia USA Inc. PMST2222,115
- Part No.:
- PMST2222,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Bipolar Transistors
- Package:
- SC-70, SOT-323
- Datasheet:
-
PMST2222,115.pdf
- Description:
- TRANS NPN 30V 0.6A SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:2,675
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Product details
Overview
PMST2222,115 from Nexperia is an NPN bipolar junction transistor (BJT) designed for high-speed switching and linear amplification in compact SOT323 packages. It delivers 600 mA DC collector current, 30 V collector-emitter breakdown voltage (VCEO), and 250 MHz transition frequency (fT), with a typical DC current gain (hFE) of 75 at 10 mA. It is commonly used in low-power signal switching circuits in portable consumer electronics.
For engineers reviewing the PMST2222,115 datasheet, PMST2222,115 pinout, PMST2222,115 application, or PMST2222,115 equivalent, key selection criteria include VCEO rating, saturation voltage at 150 mA/15 mA drive, thermal resistance (625 K/W), and SOT323 footprint compatibility in space-constrained PCB layouts.
Technical Context
This discrete NPN transistor operates as a current-controlled switch or small-signal amplifier with base-driven control logic. Its design supports fast edge transitions-35 ns turn-on time and 250 ns turn-off time-enabling reliable performance in pulse-width modulation and digital logic interfacing.
Thermal behavior is defined by a junction-to-ambient thermal resistance of 625 K/W on FR4 PCBs, limiting continuous power dissipation to 200 mW at 25 °C ambient. The device exhibits low leakage: ICBO ≤ 10 nA at 50 V VCB and 25 °C, supporting stable biasing in battery-powered systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 30 V - maximum safe collector-emitter voltage under open-base condition; defines upper rail limit in low-voltage switching stages |
| IC (DC) | 600 mA - maximum continuous collector current; sets load-driving capability in relay drivers or LED switches |
| fT | 250 MHz - unity-gain bandwidth; enables use in RF preamps up to ~100 MHz and high-speed digital buffers |
| VCE(sat) | 400 mV @ 150 mA/15 mA - low saturation voltage ensures minimal conduction loss and heat generation in saturated-switch mode |
| hFE | 75 @ 10 mA/10 V - DC current gain sufficient for single-stage amplification or direct GPIO driving without external base resistors |
| Rth j-a | 625 K/W - thermal resistance on FR4 board; requires derating above 25 °C ambient to maintain Tj ≤ 150 °C |
| Cc | 8 pF @ 10 V - collector junction capacitance; impacts high-frequency response and Miller effect in amplifier configurations |
Pinout & Package
SOT323 (SC-70) surface-mount plastic package: 1.35 mm × 1.15 mm × 0.9 mm body, 0.65 mm lead pitch, 3-terminal configuration with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Base | Current-controlled input node; requires series resistor to limit IB and ensure proper biasing in switching or amplification |
| 2 | Emitter | Common reference terminal; connected to ground or low-side return path in most NPN configurations |
| 3 | Collector | Output current sink node; connects to load (e.g., LED, relay coil) between supply rail and collector |
Key Features
| Feature | Design Value |
|---|---|
| High-speed switching | 35 ns turn-on + 250 ns turn-off enables >1 MHz digital signal routing in portable logic interfaces |
| Low VCE(sat) | 400 mV at 150 mA ensures <60 mW conduction loss, reducing thermal stress in thermally constrained modules |
| Compact SOT323 footprint | 1.35 mm × 1.15 mm area saves >60% board space vs. SOT23, critical for wearables and hearing aids |
| Wide temperature range | −65 °C to +150 °C operating ambient supports deployment in automotive cabin and industrial sensor nodes |
Applications
| LED Driver Circuit | GPIO Interface Buffer |
|---|---|
Use Scenario: Driving indicator LEDs from microcontroller I/O pins with current limiting via base resistor. IC Role / Device Role / Timing Role: NPN switch sinking current from LED anode to ground; acts as level-shifting current amplifier. Use Value: 600 mA rating allows parallel LED strings; 400 mV VCE(sat) preserves forward voltage margin for red/green/yellow LEDs. | Use Scenario: Isolating and boosting weak MCU output signals to drive higher-current peripherals like sensors or optocouplers. IC Role / Device Role / Timing Role: Small-signal amplifier configured in common-emitter topology to provide voltage and current gain. Use Value: hFE ≥ 75 at 10 mA ensures clean logic-level translation; 250 MHz fT supports 10–50 MHz clock buffering. |
| Relay Coil Driver | Pulse Generator Stage |
Use Scenario: Switching 12 V/100 mA relay coils in home automation controllers using 3.3 V MCU outputs. IC Role / Device Role / Timing Role: Saturated-mode switch controlling coil energization/de-energization; flyback diode required externally. Use Value: 30 V VCEO safely handles 12 V supply + inductive kickback; 200 mW Ptot accommodates intermittent duty cycles. | Use Scenario: Generating precise 100 ns–1 µs pulses for timing calibration or test equipment trigger signals. IC Role / Device Role / Timing Role: Fast-switching element in emitter-coupled or Baker clamp configuration to sharpen edges. Use Value: 35 ns ton and 60 ns tf enable sub-100 ns pulse fidelity; low Cc minimizes capacitive loading distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN switching transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BC847BW,115 | Lower VCEO (45 V), higher hFE (110–220), same SOT323 package | Better suited for precision amplification; less margin for inductive transients | Select when higher gain and lower noise are prioritized over ruggedness in relay/snubber-free designs |
| MMBT2222ALT1G | Higher VCEO (40 V), slightly higher VCE(sat) (500 mV), SOT23 package (larger footprint) | Requires PCB redesign; better thermal dissipation (350 mW) but larger area | Choose when board layout allows SOT23 and system demands higher voltage headroom or power handling |
Compared with BC847BW,115 and MMBT2222ALT1G, PMST2222,115 offers balanced speed, saturation voltage, and voltage rating in the smallest footprint-ideal for cost- and space-sensitive consumer switching where 30 V and 250 MHz performance suffice.
Availability
PMST2222,115 is available at Aetrix Electronics and suitable for LED driver circuits, GPIO interface buffers, relay coil drivers, and pulse generator stages requiring stable component supply across high-mix, low-volume production runs.
Supply support for PMST2222,115 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 high-volume production of discrete semiconductors, acquired from NXP's Standard Products division in 2017, with manufacturing and R&D centers across Asia, Europe, and the Americas.
The PMST2222,115 belongs to Nexperia's general-purpose bipolar transistor portfolio, engineered for reliability and consistency in consumer, computing, and industrial signal-switching applications where compact size and predictable gain are essential.
FAQ
Is PMST2222,115 RoHS compliant and halogen-free?
Yes. PMST2222,115 meets RoHS Directive 2011/65/EU and is certified halogen-free per IEC 61249-2-21. Nexperia's product compliance documentation confirms lead-free terminations, absence of brominated flame retardants, and full substance declaration per EU REACH Annex XIV.
What is the maximum allowable base current for continuous operation?
The absolute maximum peak base current is 200 mA, but for continuous DC operation, the recommended limit is 50 mA. This ensures junction temperature remains within 150 °C under worst-case ambient conditions, given the 625 K/W thermal resistance and 200 mW total power dissipation rating.
Can PMST2222,115 replace PN2222A in existing SOT323 footprints?
No. PN2222A is only available in TO-18, TO-92, or SOT23 packages-not SOT323. While electrically similar, PMST2222,115 is the SOT323 variant of the 2222 family; direct replacement requires matching package geometry, which PN2222A does not offer.
Does this transistor require a base resistor in switching applications?
Yes. A series base resistor is mandatory to limit IB and prevent damage. For 3.3 V GPIO driving a 150 mA load with hFE = 75, a 1.0 kΩ resistor yields ~2.7 mA IB, ensuring saturation while keeping power dissipation in the base region below 10 mW.
PMST2222,115 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):
- 600 mA
- Voltage - Collector Emitter Breakdown (Max):
- 30 V
- Vce Saturation (Max) @ Ib, Ic:
- 1.6V @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 10nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 10V
- Power - Max:
- 200 mW
- Frequency - Transition:
- 250MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
PMST2222,115 FAQ
1.How can I place an order for PMST2222,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PMST2222,115 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 PMST2222,115 reliable?
The price and inventory of PMST2222,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PMST2222,115 is usually 5 days.
3.What payment methods are accepted for PMST2222,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PMST2222,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PMST2222,115?
PMST2222,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PMST2222,115 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 PMST2222,115?
For technical support, including PMST2222,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PMST2222,115 requirements.
6.How does Aetrix verify that PMST2222,115 is sourced from the original manufacturer or authorized distributors?
All PMST2222,115 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 PMST2222,115 meets industry standards.
7.What is the process for return or replacement of PMST2222,115?
All PMST2222,115 units undergo pre-shipment inspection (PSI). If there is an issue with PMST2222,115, 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 PMST2222,115 part is unused and in its original packaging.
Return procedure for PMST2222,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PMST2222,115 Tags
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MMBT3906LT1G
onsemi
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MMBT3904-7-F
Diodes Incorporated
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MMBT3904LT1G
onsemi
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MMBT3906-7-F
Diodes Incorporated
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MMBT3904-TP
Micro Commercial Co
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MMBT2222A-7-F
Diodes Incorporated
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BC846BLT1G
onsemi
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BC847B,215
Nexperia USA Inc.
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SMMBT3904LT1G
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MMBT2222A-TP
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MMBTA06LT1G
onsemi
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MMBT2222ALT1G
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