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Diodes Incorporated MMBD4448HCDW-7
- Part No.:
- MMBD4448HCDW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBD4448HCDW-7.pdf
- Description:
- DIODE ARRAY GP 80V 250MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:5,668
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Product details
Overview
MMBD4448HCDW-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 80V peak repetitive reverse voltage, 500mA forward current rating, and 4ns reverse recovery time. It delivers low forward voltage (0.72V max at 5mA) and ultra-low reverse leakage (100nA max at 70V), enabling efficient signal routing and clamping in compact digital logic interfaces.
For engineers reviewing the MMBD4448HCDW-7 datasheet, MMBD4448HCDW-7 pinout, MMBD4448HCDW-7 application, or MMBD4448HCDW-7 equivalent, key selection criteria include fast switching performance in space-constrained PCB layouts, low capacitance (3.5pF max) for high-frequency signal integrity, and AEC-Q101 qualification readiness via related variants for automotive-grade designs.
Technical Context
This dual diode array integrates two identical, isolated silicon PN junctions optimized for general-purpose high-speed switching-each element operates independently with matched electrical characteristics across temperature. Its 4ns trr and 3.5pF CT support clean edge transitions in 10–100MHz digital signal paths without significant ringing or delay skew.
The device uses alloy-42 leadframe with matte tin plating and green molding compound (UL 94V-0), meeting RoHS 3, halogen-free, and antimony-free requirements. Thermal resistance of 625°C/W (RθJA) reflects its suitability for low-power, thermally unmanaged applications on standard FR-4 boards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Package | SOT363 - 6-pin, dual-diode configuration with common cathode option; footprint compatible with automated SMT assembly and IPC-7351B land patterns. |
| VRRM | 80 V - Maximum repetitive reverse blocking capability per diode, supporting 24V/48V industrial bus clamping and 3.3V–5V logic-level signal isolation. |
| IFM | 500 mA - Continuous forward current per diode, sufficient for driving small-signal loads like LED indicators or gate pull-downs without derating at +85°C. |
| trr | 4.0 ns - Measured at VR = 6V, IF = 5mA; enables reliable operation in pulse-width modulation circuits up to ~100MHz without tail current distortion. |
| VF @ 5mA | 0.72 V max - Low conduction loss preserves voltage headroom in battery-powered sensor nodes and level-shifting interfaces. |
| IR @ 70V | 100 nA max - Minimal leakage ensures stable DC bias points in high-impedance analog front-ends and precision reference circuits. |
| CT | 3.5 pF max - Low junction capacitance minimizes capacitive loading on high-speed data lines such as USB 2.0 D+/D− or SPI clock traces. |
Pinout & Package
SOT363 package: 6-pin, dual-diode array with pin 1–3 assigned to first diode (anode–cathode–NC) and pin 4–6 to second diode (anode–cathode–NC); pin 3 and pin 6 are not connected internally and must remain unconnected in layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for forward-biased switching path; connects to signal source requiring clamping or steering. |
| 2 | Cathode of Diode 1 | Output node tied to reference rail (e.g., VCC or GND); defines polarity of clamping action. |
| 3 | No Connect (NC) | Internally unconnected; must be left floating-no solder mask or trace should contact this pad. |
| 4 | Anode of Diode 2 | Independent switching input; supports dual-channel protection or bidirectional signal routing. |
| 5 | Cathode of Diode 2 | Second output node; may be tied to same or different reference as Pin 2 depending on circuit topology. |
| 6 | No Connect (NC) | Internally unconnected; electrically isolated-requires no routing or thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Fast reverse recovery | 4.0 ns trr enables clean switching in >50 MHz clock distribution and data strobe circuits without overshoot. |
| Low forward voltage | 0.72 V max at 5mA reduces power dissipation in always-on bias networks and improves efficiency in low-voltage microcontroller I/O protection. |
| Ultra-low reverse leakage | 100 nA max at 70V maintains signal fidelity in high-impedance sample-and-hold stages and precision voltage dividers. |
| Small SMT footprint | SOT363 package occupies <2.2 mm × 2.2 mm area-ideal for dense mixed-signal PCBs where board space is constrained by RF or sensor modules. |
| Green and RoHS-compliant | Halogen-free, antimony-free, lead-free construction meets IEC 61249-2-21 and JEDEC J-STD-020 moisture sensitivity Level 1 standards. |
Applications
| USB 2.0 Data Line Protection | Industrial PLC Input Conditioning |
|---|---|
|
Use Scenario: Clamping ESD transients on D+ and D− lines of embedded USB peripherals before they reach the PHY IC. IC Role / Device Role / Timing Role: Dual-diode transient voltage suppressor placed between signal line and VBUS/GND rails. Use Value: 4ns trr prevents data corruption during hot-plug events; 3.5pF CT avoids signal integrity degradation at 480 Mbps full-speed signaling. |
Use Scenario: Isolating 24V DC field inputs from microcontroller GPIO pins in programmable logic controllers. IC Role / Device Role / Timing Role: Signal-level translator and overvoltage protector for optocoupler input stages. Use Value: 80V VRRM withstands inductive kickback from solenoid drivers; 0.72V VF ensures minimal voltage drop across series current-limiting resistors. |
| Automotive Body Control Module (BCM) | IoT Sensor Node Signal Routing |
|
Use Scenario: Steering wake-up signals from door handle switches to low-power MCU sleep/wake inputs in AEC-Q101-compliant BCM designs. IC Role / Device Role / Timing Role: Fast-response signal diode for edge-triggered interrupt generation. Use Value: Matched dual elements ensure consistent timing across redundant channels; 100nA IR prevents false wake-ups due to leakage accumulation. |
Use Scenario: Multiplexing analog sensor outputs (e.g., temperature, humidity) onto shared ADC input lines in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Bidirectional analog switch using back-to-back diode configuration. Use Value: Low CT preserves bandwidth of mV-level sensor signals; SOT363 footprint allows placement directly adjacent to sensors for minimal trace length. |
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 | Single-pair Schottky diode in SOT323; VF = 0.33V typ at 10mA, but VRRM = 30V only. | Limited to ≤3.3V systems; unsuitable for 24V industrial or automotive signal conditioning. | Select when ultra-low VF dominates over reverse voltage rating and board space permits larger SOT323 footprint. |
| MMBD4148-7-F | Single diode in SOT23; identical trr (4ns) and VRRM (100V), but no dual-element integration. | Requires two placements for dual-channel use-increases layout complexity and BOM count. | Choose when discrete control of each diode's cathode/anode routing is required or when legacy SOT23 tooling is fixed. |
Compared with BAT54CWS-7-F and MMBD4148-7-F, MMBD4448HCDW-7 uniquely combines dual-channel integration, 80V blocking, and 4ns switching in a single SOT363 package-reducing component count and interconnect parasitics in multi-signal interface designs.
Availability
MMBD4448HCDW-7 is available at Aetrix Electronics and suitable for USB interface protection, industrial PLC input conditioning, and IoT sensor node signal routing requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for MMBD4448HCDW-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 semiconductor company specializing in discrete, analog, and mixed-signal solutions, with design centers in Asia, Europe, and the US, and manufacturing in IATF16949-certified facilities.
The MMBD4448H series belongs to Diodes' high-speed switching diode product line, engineered for signal integrity preservation in compact digital and mixed-signal systems-from consumer wearables to automotive body electronics.
FAQ
Is MMBD4448HCDW-7 AEC-Q101 qualified?
No-MMBD4448HCDW-7 itself is not AEC-Q101 certified. However, the functionally identical MMBD4448HADWQ-7-F variant is AEC-Q101 qualified, PPAP capable, and manufactured in IATF16949-certified facilities. For automotive applications, that variant must be specified in the BOM.
What is the maximum operating temperature for continuous use?
The device supports continuous operation from –55°C to +150°C ambient. At +125°C, derating applies: power dissipation drops to ~100mW (per Figure 1), and reverse leakage increases to 30µA at 25V-still within functional limits for most signal-routing applications.
Can Pin 3 and Pin 6 be used as thermal pads or ground connections?
No-Pins 3 and 6 are confirmed as No Connect (NC) terminals per Diodes' datasheet DS30153 Rev. 20-2. They are not bonded internally and must remain unconnected; using them as thermal or ground paths violates the validated package design and risks parametric shift or failure.
How does MMBD4448HCDW-7 differ from MMBD4448HCQW-7-F?
Both share identical electrical specs, but MMBD4448HCQW-7-F uses the SOT353 package (5-pin, one NC pin), while MMBD4448HCDW-7 uses SOT363 (6-pin, two NC pins). SOT363 offers better thermal dissipation (lower RθJA) and improved manufacturability for dual-diode symmetry in automated placement.
MMBD4448HCDW-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 Cathode
- 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
MMBD4448HCDW-7 FAQ
1.How can I place an order for MMBD4448HCDW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4448HCDW-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 MMBD4448HCDW-7 reliable?
The price and inventory of MMBD4448HCDW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBD4448HCDW-7 is usually 5 days.
3.What payment methods are accepted for MMBD4448HCDW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4448HCDW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4448HCDW-7?
MMBD4448HCDW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4448HCDW-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 MMBD4448HCDW-7?
For technical support, including MMBD4448HCDW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4448HCDW-7 requirements.
6.How does Aetrix verify that MMBD4448HCDW-7 is sourced from the original manufacturer or authorized distributors?
All MMBD4448HCDW-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 MMBD4448HCDW-7 meets industry standards.
7.What is the process for return or replacement of MMBD4448HCDW-7?
All MMBD4448HCDW-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4448HCDW-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 MMBD4448HCDW-7 part is unused and in its original packaging.
Return procedure for MMBD4448HCDW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4448HCDW-7 Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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