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Diodes Incorporated MMBD5004S-7
- Part No.:
- MMBD5004S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBD5004S-7.pdf
- Description:
- DIODE ARRAY GP 350V 300MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:6,164
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Product details
Overview
MMBD5004S-7 from Diodes Incorporated is a high-voltage dual switching diode in SOT23 package, rated for 400 V repetitive peak reverse voltage and 50 ns reverse recovery time, with 300 mA forward current capability per element. It serves as a compact, surface-mount solution for high-voltage DC-DC converter flyback snubbers and ESD-protected signal line clamping in industrial power supplies.
For engineers reviewing the MMBD5004S-7 datasheet, MMBD5004S-7 pinout, MMBD5004S-7 application, or MMBD5004S-7 equivalent, key selection criteria include verified 400 V VRRM, sub-50 ns tRR, low leakage (<5 µA @ 360 V), dual-element isolation, and SOT23 thermal performance (RθJA = 357 °C/W).
Technical Context
This dual diode integrates two independent, isolated PN junctions in a single SOT23-3 package, enabling shared footprint use in bidirectional clamping or series/parallel configurations. Each element supports independent 400 V blocking and exhibits matched electrical characteristics across temperature (–55 °C to +150 °C).
Its fast 50 ns recovery time and low 0.65–2.0 pF capacitance at 0 V bias support high-frequency switching up to several MHz in snubber networks and transient suppression circuits, while maintaining <150 nA leakage at 240 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Enables direct use in 380 VAC rectified bus and 400 V DC intermediate rails without derating. |
| tRR | 50 ns - Supports switching frequencies >1 MHz in snubber and clamp applications with minimal tail current loss. |
| IF | 300 mA per element - Sustains continuous conduction in auxiliary bias windings and low-power gate drive paths. |
| IR | 5 µA @ 360 V - Ensures negligible leakage-induced power loss in high-impedance sensing or hold-up circuits. |
| CT | 0.65–2.0 pF @ 0 V - Minimizes capacitive loading on high-speed signal lines and clock distribution nodes. |
| RθJA | 357 °C/W - Requires minimal PCB copper area (1" × 1", 2 oz) to maintain TJ < 150 °C at full 350 mW dissipation. |
Pinout & Package
Package: SOT23-3, surface-mount plastic case with matte tin–annealed Alloy 42 leadframe; moisture sensitivity level 1 (J-STD-020); weight ≈ 0.008 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Element A | Primary anode connection for first diode; used in cathode-referenced clamping or series anode-cathode routing. |
| Pin 2 | Cathode common (shared) | Internally connected cathodes - enables dual-anode, single-cathode configuration for rail-to-rail clamping. |
| Pin 3 | Anode of Element B | Independent anode for second diode; allows differential or complementary clamping across two signal paths. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated elements in SOT23 | Reduces board space by 50% vs. two discrete SOT23 diodes; maintains electrical separation for cross-talk–sensitive interfaces. |
| 400 V VRRM rating | Eliminates need for series stacking in 380–400 V DC systems, simplifying layout and improving reliability over multi-diode solutions. |
| 50 ns reverse recovery | Minimizes switching loss and EMI generation in 500 kHz–2 MHz flyback snubbers and active clamp circuits. |
| Lead-free, halogen-free "Green" construction | Meets IPC-J-STD-020 Level 1 reflow profile and EU RoHS 2011/65/EU without requiring special assembly processes. |
Applications
| Industrial Power Supply Snubbers | ESD-Protected Signal Line Clamping |
|---|---|
Use Scenario: Absorbing turn-off voltage spikes across MOSFET drains in 24–48 V input industrial DC-DC converters. IC Role / Device Role / Timing Role: Passive clamp diode in RCD snubber network, conducting only during MOSFET off-time. Use Value: 400 V rating withstands reflected 350 V peaks; 50 ns tRR ensures clean turn-off without secondary oscillation. | Use Scenario: Protecting RS-485 transceiver I/O pins against ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamping diode between data line and VCC/GND rails. Use Value: 0.65 pF CT avoids signal integrity degradation at 10 Mbps; dual elements allow symmetrical rail-to-rail clamping. |
| High-Voltage Bias Winding Rectification | Isolated Feedback Path Protection |
Use Scenario: Rectifying auxiliary winding output in offline flyback controllers powering optocoupler and TL431 circuits. IC Role / Device Role / Timing Role: Low-leakage, high-VRWM rectifier delivering stable 12–15 V bias under light-load conditions. Use Value: 5 µA IR @ 360 V prevents >100 µW standby loss; 300 mA IF supports 10 mA bias current with margin. | Use Scenario: Shielding optocoupler LED anode/cathode from transients induced by primary-side switching noise. IC Role / Device Role / Timing Role: Dual-path transient voltage suppressor placed across feedback loop terminals. Use Value: Independent anodes (Pins 1 & 3) enable separate clamping to VCC and GND, preventing latch-up during burst-mode operation. |
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 |
|---|---|---|---|
| BAT54S-7-F | VRRM = 30 V, tRR = 5 ns, CT = 10 pF - lower voltage, faster, higher capacitance | Suitable only for ≤24 V systems; inadequate for 400 V bus clamping | Select only for low-voltage, ultra-fast signal steering where 400 V rating is unnecessary. |
| MMBD1205S-7 | VRRM = 200 V, tRR = 50 ns, IF = 200 mA - half the voltage rating, reduced current | Requires series stacking for 400 V use, increasing component count and parasitic inductance | Acceptable only when redesign allows dual-device implementation and thermal budget permits higher RθJA. |
Compared with BAT54S-7-F and MMBD1205S-7, MMBD5004S-7 uniquely delivers 400 V standoff in a single SOT23 device without sacrificing recovery speed or introducing excessive capacitance-critical for compact, high-efficiency industrial power designs.
Availability
MMBD5004S-7 is available at Aetrix Electronics and suitable for industrial power supply snubbers, ESD-protected communication interfaces, and high-voltage bias rectification requiring stable component supply despite its obsolete status through legacy channel management.
Supply support for MMBD5004S-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 MMBD5004S-7 belongs to Diodes' high-voltage switching diode product line, engineered specifically for space-constrained industrial and automotive power conversion systems demanding robust 400 V transient handling and fast recovery.
FAQ
Is MMBD5004S-7 still in active production?
No - Diodes Incorporated has officially discontinued the MMBD5004S-7 and marked it as obsolete per DS35585 Rev. 6-4 (December 2023). However, Aetrix Electronics maintains legacy inventory and offers controlled distribution with full traceability and documentation for ongoing production support.
What is the maximum operating temperature for MMBD5004S-7?
The MMBD5004S-7 is rated for junction and storage temperatures from –55 °C to +150 °C. Its thermal resistance (RθJA = 357 °C/W) requires adherence to the specified FR-4 PCB layout (1" × 1", 2 oz copper) to sustain 350 mW dissipation at ambient temperatures up to +85 °C.
Can MMBD5004S-7 replace MMBD5004A or MMBD5004C?
Yes - MMBD5004S-7, MMBD5004A-7, and MMBD5004C-7 share identical electrical specifications, package (SOT23), pinout, and thermal performance. The suffix denotes internal process or test bin differences only; all three are functionally interchangeable in circuit design and layout.
Does MMBD5004S-7 meet RoHS and halogen-free requirements?
Yes - the MMBD5004S-7 is fully RoHS 2011/65/EU compliant with no purposely added lead, and certified "Green" per Diodes' definition: <900 ppm bromine, <900 ppm chlorine (<1500 ppm total Br + Cl), and <1000 ppm antimony compounds.
MMBD5004S-7 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:
- Obsolete
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 350 V
- Current - Average Rectified (Io) (per Diode):
- 300mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.275 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 150 nA @ 240 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MMBD5004S-7 FAQ
1.How can I place an order for MMBD5004S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD5004S-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 MMBD5004S-7 reliable?
The price and inventory of MMBD5004S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBD5004S-7 is usually 5 days.
3.What payment methods are accepted for MMBD5004S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD5004S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD5004S-7?
MMBD5004S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD5004S-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 MMBD5004S-7?
For technical support, including MMBD5004S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD5004S-7 requirements.
6.How does Aetrix verify that MMBD5004S-7 is sourced from the original manufacturer or authorized distributors?
All MMBD5004S-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 MMBD5004S-7 meets industry standards.
7.What is the process for return or replacement of MMBD5004S-7?
All MMBD5004S-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBD5004S-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 MMBD5004S-7 part is unused and in its original packaging.
Return procedure for MMBD5004S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD5004S-7 Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
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MMBD1503-TP
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BAV99WT1G
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