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Diodes Incorporated MMDT5401-7
- Part No.:
- MMDT5401-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Bipolar Transistor Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMDT5401-7.pdf
- Description:
- TRANS 2PNP 150V 200MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:5,155
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Product details
Overview
MMDT5401-7 from Diodes Incorporated is a dual PNP small-signal transistor in SOT363 package, rated for -150 V VCEO, -200 mA IC, and 200 mW power dissipation. It delivers hFE = 60–240 at -10 mA/-5 V and fT up to 300 MHz, serving as a medium-power switching and amplification device in compact DC-DC bias networks and analog front-end stages.
For engineers reviewing the MMDT5401-7 datasheet, MMDT5401-7 pinout, MMDT5401-7 application, or MMDT5401-7 equivalent, key selection criteria include complementary NPN pairing (MMDT5551), ultra-small SOT363 footprint, -150 V breakdown rating, thermal resistance of 625 °C/W on standard FR-4, and automotive-grade variant availability (MMDT5401Q).
Technical Context
This dual PNP transistor uses epitaxial planar die construction for stable gain and low leakage. Each emitter-base junction supports -6 V VEBO, and collector-base breakdown reaches -160 V under pulsed conditions with <2% duty cycle.
It operates across -55°C to +150°C with moisture sensitivity level 1 per J-STD-020. The matte tin–plated terminals ensure solderability per MIL-STD-202 Method 208, and the "Green" molding compound meets UL 94V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCEO | -150 V - Maximum safe collector-emitter voltage before avalanche conduction in switching applications |
| IC | -200 mA - Continuous collector current limit defining medium-power operation envelope |
| PD | 200 mW - Power dissipation on minimum pad layout; dictates thermal derating above +25°C ambient |
| hFE | 60–240 - DC current gain range at -10 mA/-5 V, enabling predictable base drive sizing |
| fT | 100–300 MHz - Transition frequency confirming suitability for RF preamp and high-speed switching |
| RθJA | 625 °C/W - Junction-to-ambient thermal resistance on single-sided 1 oz FR-4, critical for PCB layout planning |
| NF | 8 dB - Noise figure at -200 µA/-5 V/1 kHz, relevant for low-level signal amplification stages |
Pinout & Package
Package: SOT363 - ultra-small surface-mount plastic package (2.15 mm × 2.10 mm × 0.95 mm), lead-free, RoHS-3 and halogen-free compliant, weight ≈ 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| C1 | Collector of Transistor 1 | Primary current sink node for first PNP; tied to high-side load or supply rail |
| E1 | Emitter of Transistor 1 | Current source node for first PNP; connects to reference or bias network |
| B1 | Base of Transistor 1 | Control input for first PNP; requires current-limited drive due to hFE-dependent base current |
| C2 | Collector of Transistor 2 | Independent current sink for second PNP; enables dual-channel bias or differential pair use |
| E2 | Emitter of Transistor 2 | Second current source node; electrically isolated from E1 but thermally coupled in same package |
| B2 | Base of Transistor 2 | Separate control input; allows independent switching or matched gain configuration with B1 |
Key Features
| Feature | Design Value |
|---|---|
| Epitaxial planar die construction | Ensures consistent hFE matching between dual transistors and low parameter drift over temperature |
| Complementary NPN pairing (MMDT5551) | Enables direct substitution in push-pull, differential, or totem-pole topologies without redesign |
| SOT363 ultra-small footprint | Reduces board area by >40% vs. SO-8 or SC-70-6, supporting high-density portable and IoT PCBs |
| Matte tin terminal finish | Guarantees reliable reflow soldering per MIL-STD-202 and eliminates lead-based process compatibility issues |
Applications
| LED Driver Bias Network | DC-DC Converter Feedback Loop |
|---|---|
Use Scenario: Biasing constant-current LED strings in space-constrained lighting modules. IC Role / Device Role / Timing Role: Dual PNP switch controlling reference current into op-amp feedback path. Use Value: -150 V VCEO withstands transient spikes in 24–48 V industrial LED systems; matched hFE ensures uniform channel current sharing. | Use Scenario: Precision voltage sensing and error amplification in isolated flyback converters. IC Role / Device Role / Timing Role: PNP pair amplifies optocoupler output to regulate primary-side PWM duty cycle. Use Value: 8 dB noise figure preserves SNR in feedback path; -200 mA IC supports fast transient response during load steps. |
| Analog Front-End Protection | Low-Voltage Logic Level Shifting |
Use Scenario: Input clamping and overvoltage protection for sensor interfaces in automotive ECUs. IC Role / Device Role / Timing Role: Dual PNP configured as active clamp and pull-up in bidirectional signal conditioning stage. Use Value: -160 V VCBO provides margin against ISO 7637-2 pulse 5a transients; -55°C to +150°C rating matches under-hood requirements. | Use Scenario: Bidirectional level translation between 3.3 V MCU GPIO and 5 V peripheral bus. IC Role / Device Role / Timing Role: One PNP acts as open-collector driver, the other as pull-up amplifier for clean edge integrity. Use Value: 300 MHz fT ensures sub-10 ns propagation delay; SOT363 footprint aligns with fine-pitch QFN microcontroller layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual PNP transistor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMDT5401Q | Automotive AEC-Q101 qualified; identical electrical specs but with extended reliability testing and traceable lot control | Required for ASIL-B functional safety paths; not needed for commercial-grade consumer designs | Select when automotive qualification or long-term supply continuity is mandated |
| DMT3005LSD | Single PNP in SOT23-6; -50 V VCEO, -3 A IC, higher power but lower voltage rating and no dual topology | Used where high-current switching dominates over dual-channel matching or high-voltage tolerance | Choose only if system voltage ≤ 40 V and discrete channel isolation is unnecessary |
Compared with MMDT5401-7, MMDT5401Q adds automotive qualification without altering performance, while DMT3005LSD trades voltage headroom and dual functionality for higher current capability in non-dual, lower-voltage applications.
Availability
MMDT5401-7 is available at Aetrix Electronics and suitable for LED driver bias networks, DC-DC converter feedback loops, and analog front-end protection circuits requiring stable component supply and RoHS-3 compliance.
Supply support for MMDT5401-7 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 the Americas.
The MMDT5401 belongs to Diodes' small-signal transistor product line, engineered for high-voltage, medium-current switching and amplification in space-constrained industrial and consumer power management systems.
FAQ
What is the maximum operating temperature for MMDT5401-7?
The MMDT5401-7 has an operating junction temperature range of -55°C to +150°C, verified per absolute maximum ratings. Its thermal resistance (RθJA = 625 °C/W) means sustained operation above +85°C ambient requires careful PCB copper area design or derating of IC and PD.
Is MMDT5401-7 pin-compatible with MMDT5551?
No-MMDT5401-7 is a dual PNP transistor, while MMDT5551 is its complementary dual NPN counterpart. They share identical SOT363 pinout (C1/E1/B1/C2/E2/B2), enabling direct PCB layout reuse in push-pull or differential configurations, but polarity and biasing must be inverted.
Does MMDT5401-7 support high-frequency switching above 10 MHz?
Yes-the MMDT5401-7 achieves fT up to 300 MHz and exhibits Cobo = 6 pF at -10 V, making it suitable for switching above 10 MHz in low-power applications such as RF preamplifiers or fast logic translators, provided layout minimizes parasitic inductance and capacitance.
Can MMDT5401-7 replace a single SOT23 PNP transistor?
Yes, one half of the MMDT5401-7 (e.g., C1/B1/E1) can function as a standalone PNP transistor with identical specs to discrete SOT23 equivalents like MMST5401, but the unused section must be properly terminated (base grounded, emitter open or tied to supply) to avoid unintended conduction or noise coupling.
MMDT5401-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Transistor Type:
- 2 PNP (Dual)
- Current - Collector (Ic) (Max):
- 200mA
- Voltage - Collector Emitter Breakdown (Max):
- 150V
- Vce Saturation (Max) @ Ib, Ic:
- 500mV @ 5mA, 50mA
- Current - Collector Cutoff (Max):
- 50nA (ICBO)
- DC Current Gain (hFE) (Min) @ Ic, Vce:
- 60 @ 10mA, 5V
- Power - Max:
- 200mW
- Frequency - Transition:
- 300MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
MMDT5401-7 FAQ
1.How can I place an order for MMDT5401-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMDT5401-7 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 MMDT5401-7 reliable?
The price and inventory of MMDT5401-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMDT5401-7 is usually 5 days.
3.What payment methods are accepted for MMDT5401-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMDT5401-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMDT5401-7?
MMDT5401-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMDT5401-7 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 MMDT5401-7?
For technical support, including MMDT5401-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMDT5401-7 requirements.
6.How does Aetrix verify that MMDT5401-7 is sourced from the original manufacturer or authorized distributors?
All MMDT5401-7 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 MMDT5401-7 meets industry standards.
7.What is the process for return or replacement of MMDT5401-7?
All MMDT5401-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMDT5401-7, 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 MMDT5401-7 part is unused and in its original packaging.
Return procedure for MMDT5401-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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