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Diodes Incorporated MMBD4448HADW-7
- Part No.:
- MMBD4448HADW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBD4448HADW-7.pdf
- Description:
- DIODE ARRAY GP 80V 250MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:2,379
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Product details
Overview
MMBD4448HADW-7 from Diodes Incorporated is a surface-mount dual fast-switching diode array in SOT363 package, configured as two independent high-speed switching diodes with 100V non-repetitive peak reverse voltage, 4ns maximum reverse recovery time, and 0.72V max forward voltage at 5mA. It serves in signal routing, level shifting, and clamp protection circuits in compact DC-DC converters and USB interface protection.
For engineers reviewing the MMBD4448HADW-7 datasheet, MMBD4448HADW-7 pinout, MMBD4448HADW-7 application, or MMBD4448HADW-7 equivalent, key selection criteria include verified 4ns trr performance, 3.5pF junction capacitance at 6V, AEC-Q101 qualification for automotive variants (e.g., MMBD4448HADWQ), and SOT363 thermal resistance of 625°C/W on FR-4.
Technical Context
This dual-diode array integrates two isolated silicon PN junctions optimized for high-speed digital and analog signal path control. Each element supports 500mA continuous forward current and withstands 80V repetitive reverse voltage, with leakage held to ≤100nA at 70V and 25°C.
The device operates across –55°C to +150°C, leveraging low-capacitance (≤3.5pF) and fast recovery (≤4ns) to minimize signal distortion in 10–100MHz clock line clamping and data-line transient suppression applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VRWM) | 80 V - Maximum working reverse bias before significant leakage or breakdown in normal operation |
| Forward Voltage (VF) | 0.72 V max at 5 mA - Ensures minimal voltage drop and power loss in low-current logic-level switching paths |
| Reverse Recovery Time (trr) | 4.0 ns max - Enables reliable operation in >25 MHz digital signal routing and pulse shaping circuits |
| Junction Capacitance (CT) | 3.5 pF max at 6 V - Limits signal loading on high-frequency lines such as USB D+/D− or I²C buses |
| Reverse Current (IR) | 100 nA max at 70 V - Maintains high isolation integrity in precision reference or sensor front-end clamp networks |
| Power Dissipation (PD) | 200 mW - Supports sustained operation under typical PCB layout (1″², 2 oz Cu) without forced cooling |
Pinout & Package
Package: SOT363 - 6-pin, dual-row, surface-mount plastic package with matte tin-plated alloy 42 leadframe; moisture sensitivity level 1 per J-STD-020; weight ≈ 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode element; connects to signal source requiring clamping or steering |
| C1 | Cathode 1 | Return path for first diode; ties to reference rail (e.g., VCC, GND, or clamping voltage) |
| A2 | Anode 2 | Independent input for second diode; enables dual-path protection or bidirectional signal conditioning |
| C2 | Cathode 2 | Isolated return for second diode; allows separate biasing or rail referencing from C1 |
| NC | No Connect | Internally unconnected pin; must remain floating-no routing or grounding permitted |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 4 ns trr enables clean edge preservation in 50+ MHz digital interfaces without overshoot or ringing |
| Low forward voltage | 0.72 V max at 5 mA reduces conduction loss in battery-powered signal path protection |
| Low junction capacitance | 3.5 pF max minimizes capacitive loading on high-speed data lines like USB 2.0 or LVDS |
| AEC-Q101 qualified variant available | MMBD4448HADWQ meets automotive stress testing requirements for under-hood and infotainment systems |
Applications
| USB 2.0 ESD Protection | DC-DC Converter Feedback Clamp |
|---|---|
Use Scenario: Bidirectional signal line protection against ±15kV HBM ESD events on USB D+ and D− lines. IC Role / Device Role: Dual-clamp diode array providing low-capacitance path to VCC and GND rails during transients. Use Value: 3.5pF capacitance avoids signal integrity degradation at 480 Mbps; 4ns recovery prevents latch-up during fast pulses. |
Use Scenario: Clamping feedback node voltage in isolated flyback converters to prevent optocoupler saturation. IC Role / Device Role: Fast-switching clamp limiting error amplifier output swing to safe range. Use Value: 0.72V VF ensures precise voltage thresholding; dual configuration allows independent VREF and VOUT clamping. |
| LVDS Receiver Input Protection | Microcontroller GPIO Level Shifting |
Use Scenario: Protecting differential receiver inputs from overvoltage due to hot-plug or crosstalk coupling. IC Role / Device Role: Low-Cj dual diode shunting excess common-mode voltage to supply rails. Use Value: 3.5pF total capacitance preserves 350 mV differential swing integrity up to 650 Mbps data rate. |
Use Scenario: Translating 1.8V logic outputs to 3.3V peripherals while blocking reverse current. IC Role / Device Role: Discrete-level-shifter using forward-biased diode drop and rail-referenced cathodes. Use Value: 0.72V VF provides predictable ~2.5V output; dual structure supports simultaneous TX/RX translation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast-switching diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54CWS-7-F | Higher VF (0.85V @ 10mA), higher Cj (10pF), same SOT323 package but single-die dual-anode configuration | Limited to lower-frequency (<10 MHz) clamping; unsuitable for USB 2.0 due to excessive capacitance | Select only when cost sensitivity outweighs speed/capacitance requirements and board space permits SOT323 footprint |
| NSR0230P2T5G | Single diode, 0.3A rating, 0.45V VF, 12pF Cj, SOD-523 package; no dual-element integration | Requires two devices and extra routing for dual-path functions; lacks integrated isolation between elements | Use only for discrete replacement where dual-diode monolithic integration is not required |
Compared with BAT54CWS-7-F and NSR0230P2T5G, MMBD4448HADW-7 delivers superior high-frequency performance via its 4ns trr and 3.5pF Cj, while the SOT363 dual-diode architecture reduces PCB area and interconnect inductance versus discrete or alternate-package solutions.
Availability
MMBD4448HADW-7 is available at Aetrix Electronics and suitable for USB interface protection, DC-DC converter feedback clamping, and LVDS receiver input safeguarding requiring stable component supply, RoHS/Green compliance, and production-ready tape-and-reel packaging (3000 pcs/reel).
Supply support for MMBD4448HADW-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 MMBD4448H series belongs to Diodes' high-speed switching diode product line, engineered specifically for signal integrity-critical applications including interface protection, level translation, and precision clamping in space-constrained consumer, computing, and automotive electronics.
FAQ
What is the maximum operating temperature for MMBD4448HADW-7?
The MMBD4448HADW-7 is rated for junction and storage temperatures from –55°C to +150°C. Its thermal resistance (RθJA) is 625°C/W on standard FR-4 with 1-inch², 2-oz copper pads, enabling full-rated operation up to +125°C ambient in typical layouts.
Is MMBD4448HADW-7 pin-compatible with other variants in the MMBD4448H family?
Yes-MMBD4448HADW-7 shares identical SOT363 pinout and internal dual-diode topology with MMBD4448HAQW, MMBD4448HCDW, and MMBD4448HSDW. Differences lie only in marking codes and minor process optimizations; electrical specs and mechanical fit remain consistent across all SOT363 variants.
Does MMBD4448HADW-7 meet automotive qualification standards?
The base MMBD4448HADW-7 is not AEC-Q101 qualified; however, the functionally identical MMBD4448HADWQ-7-F variant is fully AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949-certified facilities-making it suitable for automotive infotainment, body control, and ADAS subsystems.
How does the NC pin affect PCB layout for MMBD4448HADW-7?
Pin 3 (NC) in the SOT363 package is internally unconnected and must remain electrically floating-no trace, pad, or thermal relief should connect to it. Including solder mask opening or stencil aperture for this pin may cause unintended shorts; recommended practice is to omit paste and exclude from netlist verification.
MMBD4448HADW-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
- Diode Configuration:
- 2 Pair Common Anode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 80 V
- Current - Average Rectified (Io) (per Diode):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 70 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
MMBD4448HADW-7 FAQ
1.How can I place an order for MMBD4448HADW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4448HADW-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 MMBD4448HADW-7 reliable?
The price and inventory of MMBD4448HADW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBD4448HADW-7 is usually 5 days.
3.What payment methods are accepted for MMBD4448HADW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4448HADW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4448HADW-7?
MMBD4448HADW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4448HADW-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 MMBD4448HADW-7?
For technical support, including MMBD4448HADW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4448HADW-7 requirements.
6.How does Aetrix verify that MMBD4448HADW-7 is sourced from the original manufacturer or authorized distributors?
All MMBD4448HADW-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 MMBD4448HADW-7 meets industry standards.
7.What is the process for return or replacement of MMBD4448HADW-7?
All MMBD4448HADW-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4448HADW-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 MMBD4448HADW-7 part is unused and in its original packaging.
Return procedure for MMBD4448HADW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4448HADW-7 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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