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Diodes Incorporated MMBT2222AT-7
- Part No.:
- MMBT2222AT-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Bipolar Transistors
- Package:
- SOT-523
- Datasheet:
-
MMBT2222AT-7.pdf
- Description:
- TRANS NPN 40V 0.6A SOT-523
- Quantity:
- Payment:
- Shipping:
Inventory:7,894
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Product details
Overview
MMBT2222AT-7 from Diodes Incorporated is an NPN small-signal transistor in SOT523 package, rated for 40 V VCEO, 600 mA IC, and 150 mW power dissipation, used for general-purpose switching and amplification in space-constrained consumer and industrial PCBs.
For engineers reviewing the MMBT2222AT-7 datasheet, MMBT2222AT-7 pinout, MMBT2222AT-7 application, or MMBT2222AT-7 equivalent, key selection criteria include VCEO ≥ 40 V, hFE range (35–300), SOT523 footprint compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This NPN bipolar junction transistor uses epitaxial planar die construction to ensure stable DC current gain (hFE) across IC = 100 µA to 500 mA and VCE = 10 V, with VBE(SAT) ≤ 1.2 V at IC = 500 mA / IB = 50 mA and fT = 300 MHz for RF-capable switching.
It supports fast switching with tF ≤ 60 ns and tS ≤ 225 ns under VCC = 30 V, IC = 150 mA conditions, and features low Cobo = 8 pF and Cibo = 30 pF for minimal capacitive loading in high-frequency bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | 40 V - Maximum safe collector-emitter voltage before breakdown in common-emitter configuration |
| IC | 600 mA - Continuous DC collector current rating under specified thermal conditions |
| PD | 150 mW - Max steady-state power dissipation on 1 oz copper FR-4 PCB in still air |
| hFE | 35–300 - DC current gain range across IC = 100 µA to 500 mA, enabling flexible bias design |
| fT | 300 MHz - Transition frequency defining usable bandwidth for small-signal amplification |
| VCE(SAT) | ≤1.0 V @ IC=500 mA/IB=50 mA - Low saturation voltage ensures efficient switching with minimal conduction loss |
| ESD HBM | 4000 V - Robustness against human-body-model electrostatic discharge during handling and assembly |
Pinout & Package
Package: SOT523 - ultra-small surface-mount plastic package (1.6 mm × 0.8 mm × 0.51 mm), moisture sensitivity level 1, matte tin-plated leads solderable per MIL-STD-202.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Emitter) | E | Current sink terminal; connects to ground or low-side reference in switch configurations |
| 2 (Base) | B | Control input; requires ~0.7 V forward bias and sufficient IB to drive target IC |
| 3 (Collector) | C | Current source terminal; connects to load and supply rail in low-side switching topologies |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and body electronics |
| Ultra-small SOT523 footprint | Enables high-density PCB layouts where board space is constrained below 1.3 mm² |
| Complementary PNP pair | MMBT2907AT available for push-pull or differential amplifier designs |
| Halogen- and antimony-free "Green" construction | Meets environmental compliance requirements with Br+Cl < 1500 ppm and Sb < 1000 ppm |
| Low Cobo and Cibo | 8 pF and 30 pF respectively - minimizes signal coupling and improves stability in RF bias networks |
Applications
| LED Driver Circuit | Microcontroller GPIO Interface |
|---|---|
Use Scenario: Driving discrete indicator LEDs or low-power LED arrays from 3.3 V or 5 V logic rails. IC Role / Device Role: Low-side switch controlled by MCU output pin to sink LED current. Use Value: VCE(SAT) ≤ 0.3 V at IC = 150 mA reduces power loss and enables precise current control via base resistor. | Use Scenario: Level-shifting or buffering between 1.8 V/3.3 V microcontrollers and 5 V peripherals. IC Role / Device Role: Digital interface transistor providing voltage translation and current gain. Use Value: hFE ≥ 75 at IC = 1 mA ensures reliable turn-on with weak GPIO drive capability. |
| Automotive Sensor Signal Conditioning | Power Supply Enable Switch |
Use Scenario: Amplifying analog outputs from temperature or pressure sensors in cabin control units. IC Role / Device Role: Small-signal amplifier stage with stable hFE over -40°C to +125°C ambient. Use Value: AEC-Q101 qualification and TJ = -55°C to +150°C operation support automotive-grade reliability. | Use Scenario: Enabling/disabling auxiliary 3.3 V or 5 V rails in portable instrumentation. IC Role / Device Role: High-side or low-side enable switch controlling PMIC or LDO input. Use Value: 600 mA IC rating and fast tF ≤ 60 ns allow clean power sequencing without output overshoot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NPN small-signal transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN2222A (ON Semiconductor) | TO-92 package, higher PD = 625 mW, but larger footprint and no AEC-Q101 rating | Preferred for prototyping or through-hole boards; unsuitable for space-constrained automotive PCBs | Select when leaded assembly or higher power dissipation is required, not for SMT volume production |
| BC846B (Nexperia) | SOT323 package, same VCEO = 65 V, hFE = 200–450, but only qualified to JEDEC JESD22 standards | Lacks AEC-Q101 certification; acceptable for industrial but not automotive end equipment | Choose for cost-sensitive industrial controls where automotive qualification is not mandated |
Compared with PN2222A and BC846B, MMBT2222AT-7 uniquely combines AEC-Q101 qualification, SOT523 miniaturization, and verified 40 V/600 mA performance-making it optimal for automotive and high-density embedded systems where reliability and footprint are co-constrained.
Availability
MMBT2222AT-7 is available at Aetrix Electronics and suitable for LED driver circuits, microcontroller GPIO interfaces, automotive sensor signal conditioning, and power supply enable switches requiring stable component supply and AEC-Q101 compliance.
Supply support for MMBT2222AT-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The MMBT2222AT belongs to Diodes' general-purpose bipolar transistor product line, engineered for high-reliability switching and amplification in automotive, industrial, and consumer applications where small size and qualification consistency are critical.
FAQ
Is MMBT2222AT-7 pin-compatible with standard 2N2222 or PN2222A?
No. MMBT2222AT-7 uses SOT523 package with emitter-base-collector pinout (1-2-3), whereas 2N2222/PN2222A use TO-92 with emitter-collector-base (1-2-3) ordering. Physical and electrical pin mapping differs-direct replacement requires PCB layout revision.
What is the maximum operating temperature for continuous use?
The MMBT2222AT-7 is rated for junction and storage temperatures from –55°C to +150°C. For continuous operation, ambient temperature must be limited to ensure junction temperature stays within this range-derating applies above +25°C per RθJA = 833°C/W on standard PCB layout.
Does this transistor support switching at 1 MHz?
Yes. With fT = 300 MHz and switching times tR ≤ 25 ns and tF ≤ 60 ns, the device supports clean digital switching up to several MHz. At 1 MHz, proper base drive and layout minimize Miller effect; Cibo = 30 pF and Cobo = 8 pF aid high-speed performance.
Can MMBT2222AT-7 replace MMBT2222AL in the same footprint?
No. MMBT2222AL uses SOT23 package (3.0 mm × 1.4 mm), while MMBT2222AT-7 uses SOT523 (1.6 mm × 0.8 mm). Though both are NPN transistors with similar electrical specs, their footprints are mechanically incompatible-SOT523 is significantly smaller and requires dedicated land pattern.
MMBT2222AT-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-523
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Transistor Type:
- NPN
- Current - Collector (Ic) (Max):
- 600 mA
- Voltage - Collector Emitter Breakdown (Max):
- 40 V
- Vce Saturation (Max) @ Ib, Ic:
- 1V @ 50mA, 500mA
- Current - Collector Cutoff (Max):
- 10nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 100 @ 150mA, 10V
- Power - Max:
- 150 mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-523
MMBT2222AT-7 FAQ
1.How can I place an order for MMBT2222AT-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBT2222AT-7 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 MMBT2222AT-7 reliable?
The price and inventory of MMBT2222AT-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBT2222AT-7 is usually 5 days.
3.What payment methods are accepted for MMBT2222AT-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBT2222AT-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBT2222AT-7?
MMBT2222AT-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBT2222AT-7 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 MMBT2222AT-7?
For technical support, including MMBT2222AT-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBT2222AT-7 requirements.
6.How does Aetrix verify that MMBT2222AT-7 is sourced from the original manufacturer or authorized distributors?
All MMBT2222AT-7 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 MMBT2222AT-7 meets industry standards.
7.What is the process for return or replacement of MMBT2222AT-7?
All MMBT2222AT-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBT2222AT-7, 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 MMBT2222AT-7 part is unused and in its original packaging.
Return procedure for MMBT2222AT-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBT2222AT-7 Tags
-
MMBT3906LT1G
onsemi
-
MMBT3904-7-F
Diodes Incorporated
-
MMBT3904LT1G
onsemi
-
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
-
MMBT2222ALT1G
onsemi
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