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Diodes Incorporated MMBD2004SQ-7-F
- Part No.:
- MMBD2004SQ-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBD2004SQ-7-F.pdf
- Description:
- DIODE ARRAY GP 240V 225MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:3,302
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Product details
Overview
MMBD2004SQ-7-F from Diodes Incorporated is a high-voltage dual switching diode in SOT23 package, configured as two series-connected diodes sharing a common cathode. It delivers 300 V repetitive peak reverse voltage, 50 ns reverse recovery time, and 100 nA leakage at 240 V, enabling use in automotive-level flyback snubber and high-side clamp circuits.
For engineers reviewing the MMBD2004SQ-7-F datasheet, MMBD2004SQ-7-F pinout, MMBD2004SQ-7-F application, or MMBD2004SQ-7-F equivalent, key selection criteria include verified AEC-Q101 qualification, dual-series topology for voltage stacking, low 5.0 pF capacitance at 0 V, and thermal derating behavior up to +150°C ambient.
Technical Context
This dual-diode device implements a series-connected configuration with shared cathode (pin 3), allowing stacked reverse voltage handling across both junctions. Its 300 V VRRM rating and 50 ns tRR support fast-switching DC-DC converter snubbers and ESD-protected signal line clamping where discrete stacking is impractical.
The SOT23 package enables automated placement while maintaining 357 °C/W junction-to-ambient thermal resistance on standard FR-4. Its 100 nA IR at VR = 240 V ensures minimal standby leakage in high-impedance bias networks used in automotive sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - supports single-device replacement of two 150 V diodes in series-clamp topologies |
| tRR | 50 ns - enables operation in 1–2 MHz switching power supplies without excessive switching loss |
| IF | 225 mA continuous - sufficient for gate-drive discharge paths and low-power signal routing |
| CT | 5.0 pF at 0 V - minimizes capacitive loading on high-speed logic or clock lines during clamping |
| IR | 100 nA at 240 V - preserves accuracy in precision voltage reference or high-Z analog monitoring circuits |
| PD | 350 mW - defines maximum dissipation before thermal derating begins on standard PCB layout |
| TJ range | −65 to +150 °C - validated for under-hood automotive environments per AEC-Q101 stress testing |
Pinout & Package
Package: SOT23 - surface-mount plastic case, 0.008 g weight, UL 94V-0 rated, moisture sensitivity level 1, lead-free matte tin plating over Alloy 42 leadframe.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Input node for first diode in series string; connects to switch node in snubber applications |
| Pin 2 | Anode of Diode 2 | Interconnect point between diodes; enables mid-point access for feedback or sensing |
| Pin 3 | Common Cathode | Shared output node; referenced to ground or rail in clamp configurations |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| Dual series configuration | Enables 300 V blocking with single footprint-eliminates layout space and solder joint count vs. discrete pair |
| 50 ns tRR | Reduces turn-off energy loss in high-frequency flyback and active clamp converters |
| 100 nA IR @ 240 V | Maintains signal integrity in high-impedance bias networks for Hall-effect or thermistor interfaces |
| SOT23 package | Compatible with standard pick-and-place equipment and reflow profiles for high-volume manufacturing |
Applications
| Automotive DC-DC Snubber | Industrial Sensor Clamp |
|---|---|
Use Scenario: Suppresses voltage spikes on MOSFET drain nodes in 48 V automotive buck-boost converters. IC Role / Device Role / Timing Role: Dual-series diode provides stacked 300 V clamping with matched recovery timing. Use Value: Eliminates need for two separate diodes and associated trace routing, reducing board area by 35% and parasitic inductance. | Use Scenario: Protects analog front-end inputs of temperature sensors exposed to load-dump transients in factory automation PLCs. IC Role / Device Role / Timing Role: Fast-recovery dual diode routes transient current away from ADC input pins within 50 ns. Use Value: Maintains sub-100 nA leakage at 240 V bias, preventing offset drift in 24-bit sigma-delta measurement chains. |
| High-Voltage Logic Clamp | ESD-Protected I/O Buffer |
Use Scenario: Clamps overshoot on 200 V-rated industrial control bus lines during hot-plug events. IC Role / Device Role / Timing Role: Series-connected structure absorbs bidirectional transients while limiting forward conduction to <0.87 V. Use Value: 5.0 pF capacitance avoids signal integrity degradation on 10 MHz digital control buses. | Use Scenario: Shields microcontroller GPIO pins from ±8 kV HBM ESD in medical diagnostic equipment interfaces. IC Role / Device Role / Timing Role: Dual diode conducts ESD current to VCC and GND rails with matched tRR to prevent latch-up. Use Value: AEC-Q101 qualification ensures reliability under repeated ESD stress cycles in field-deployed devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54CWS-7-F | Lower VRRM (30 V), faster tRR (4 ns), same SOT23-3L package | Not suitable for >60 V systems; limited to low-voltage logic protection | Select only when reverse voltage ≤30 V and ultra-fast recovery is prioritized over blocking capability |
| MMBD1204-7-F | Same VRRM (300 V), higher IR (500 nA @ 240 V), identical pinout | Higher leakage may affect precision bias networks; otherwise drop-in compatible | Acceptable where leakage tolerance ≥500 nA and cost is primary driver |
Compared with BAT54CWS-7-F and MMBD1204-7-F, the MMBD2004SQ-7-F uniquely balances 300 V blocking, 100 nA leakage, and AEC-Q101 compliance-making it the sole choice for automotive-grade, high-impedance, high-voltage clamping where both reliability and precision matter.
Availability
MMBD2004SQ-7-F is available at Aetrix Electronics and suitable for automotive power conversion, industrial sensor interface protection, and high-voltage logic clamping requiring stable component supply across multi-year production programs.
Supply support for MMBD2004SQ-7-F 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 distribution operations across Asia, Europe, and North America.
The MMBD2004SQ belongs to Diodes' high-voltage switching diode product line, engineered specifically for automotive and industrial applications demanding AEC-Q101 qualification, tight leakage control, and robust thermal performance in compact SOT23 packaging.
FAQ
What is the pin configuration and polarity marking for MMBD2004SQ-7-F?
The MMBD2004SQ-7-F uses a standard SOT23-3L package with pin 1 as anode of diode 1, pin 2 as anode of diode 2, and pin 3 as the common cathode. Polarity is marked by a dot adjacent to pin 1 on the top surface, and the device schematic confirms series connection with shared cathode at pin 3.
Is MMBD2004SQ-7-F suitable for use in non-automotive industrial applications?
Yes-while AEC-Q101 qualified, its 300 V VRRM, −65 to +150 °C operating range, and 100 nA leakage make it equally appropriate for industrial motor drives, programmable logic controllers, and high-reliability power supply snubbers where extended temperature and long-term stability are required.
How does the dual-series configuration affect PCB layout versus two discrete diodes?
The integrated dual-series structure reduces pad count from six to three, eliminates inter-diode trace inductance, and cuts layout area by ~40%. It also ensures matched thermal and switching characteristics between diodes-critical for balanced voltage division in clamp circuits.
What is the maximum allowable forward current under pulsed conditions?
The peak repetitive forward current IFRM is 625 mA at 100% duty cycle, but non-repetitive surge current IFSM reaches 4.0 A for 1.0 µs pulses and 1.0 A for 1.0 s pulses-enabling robust transient handling in flyback reset and ESD suppression applications.
MMBD2004SQ-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 240 V
- Current - Average Rectified (Io) (per Diode):
- 225mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 100 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 240 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MMBD2004SQ-7-F FAQ
1.How can I place an order for MMBD2004SQ-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD2004SQ-7-F 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 MMBD2004SQ-7-F reliable?
The price and inventory of MMBD2004SQ-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBD2004SQ-7-F is usually 5 days.
3.What payment methods are accepted for MMBD2004SQ-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD2004SQ-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD2004SQ-7-F?
MMBD2004SQ-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD2004SQ-7-F 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 MMBD2004SQ-7-F?
For technical support, including MMBD2004SQ-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD2004SQ-7-F requirements.
6.How does Aetrix verify that MMBD2004SQ-7-F is sourced from the original manufacturer or authorized distributors?
All MMBD2004SQ-7-F 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 MMBD2004SQ-7-F meets industry standards.
7.What is the process for return or replacement of MMBD2004SQ-7-F?
All MMBD2004SQ-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBD2004SQ-7-F, 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 MMBD2004SQ-7-F part is unused and in its original packaging.
Return procedure for MMBD2004SQ-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD2004SQ-7-F Tags
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