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Diodes Incorporated MMBD4448HSDW-7-F
- Part No.:
- MMBD4448HSDW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBD4448HSDW-7-F.pdf
- Description:
- DIODE ARRAY GP 80V 250MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:8,025
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Product details
Overview
MMBD4448HSDW-7-F from Diodes Incorporated is a dual-channel surface-mount fast switching diode array in SOT363 package, rated for 80V peak repetitive reverse voltage and 500mA forward current per element, with 4ns reverse recovery time and 3.5pF junction capacitance - deployed in high-speed signal routing and clamping circuits within industrial PLC I/O modules.
For engineers reviewing the MMBD4448HSDW-7-F datasheet, MMBD4448HSDW-7-F pinout, MMBD4448HSDW-7-F application, or MMBD4448HSDW-7-F equivalent, key selection criteria include verified 4ns trr performance, dual-diode configuration with common-cathode topology, low 0.72V VF at 5mA, and AEC-Q101 qualification status for automotive-grade reliability assurance.
Technical Context
This dual diode array integrates two independent fast-switching PN junctions in a single SOT363 package with shared cathode connection (pin 3), enabling compact bidirectional clamping or logic-level steering without discrete placement. Its 4ns reverse recovery time supports >100MHz signal edge handling in digital interface protection paths.
The device operates across –55°C to +150°C with 625°C/W junction-to-ambient thermal resistance on standard FR-4 layout, and maintains ≤100nA reverse leakage at 70V - critical for low-power sensor front-end bias networks and precision analog switch guarding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VRRM) | 80 V - Supports rail-to-rail clamping in 24V industrial control systems without breakdown. |
| Forward Voltage (VF) | 0.72 V max @ 5mA - Minimizes conduction loss in low-current logic-level translation paths. |
| Reverse Recovery Time (trr) | 4 ns max - Enables clean switching in 100+ MHz clock distribution and data line protection. |
| Junction Capacitance (CT) | 3.5 pF max @ 6V - Reduces signal loading in high-frequency RF detector and sampling circuits. |
| Reverse Current (IR) | 100 nA max @ 70V - Ensures stable DC bias integrity in precision op-amp input protection networks. |
| Package | SOT363 - 6-pin, 2.2mm × 2.1mm footprint with exposed thermal pad for improved power dissipation. |
| Thermal Resistance (RθJA) | 625 °C/W - Validated on FR-4 with 1-inch² 2oz copper pad; defines safe 200mW operation at 25°C ambient. |
Pinout & Package
SOT363 is a 6-pin, dual-flat no-lead package with gull-wing leads and exposed thermal pad. Pin 1–2 and Pin 4–5 are anode terminals for each diode; Pin 3 is the common cathode; Pin 6 is NC (no internal connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2 | Anode 1 | Input terminal for first diode channel; connects to signal source requiring clamping or steering. |
| 4, 5 | Anode 2 | Input terminal for second diode channel; enables independent bidirectional protection path. |
| 3 | Cathode (Common) | Shared output node tied to reference rail (e.g., VCC or GND); defines unidirectional conduction direction. |
| 6 | No Connect (NC) | Internally isolated; must be left floating or grounded per PCB layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 4ns trr enables use in >100MHz digital signal conditioning without timing skew. |
| Low forward voltage | 0.72V max at 5mA reduces voltage drop in low-power level-shifting interfaces. |
| Low reverse leakage | 100nA max at 70V preserves accuracy in high-impedance sensor bias and feedback networks. |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and infotainment I/O protection. |
| Green RoHS-compliant | Halogen- and antimony-free molding compound (<900ppm Br/Cl, <1000ppm Sb) meets IATF16949 manufacturing standards. |
Applications
| Industrial Sensor Interface | Automotive CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting analog outputs of 4–20mA current-loop transmitters from ESD and overvoltage transients. IC Role / Device Role / Timing Role: Dual-diode clamp placed between signal line and supply rail to shunt transient energy before reaching ADC input. Use Value: 4ns trr ensures clamping activation precedes damage threshold of downstream instrumentation amplifier. |
Use Scenario: Bidirectional ESD suppression on CAN_H and CAN_L lines in vehicle gateway ECUs. IC Role / Device Role / Timing Role: Common-cathode dual diode configured as back-to-back TVS for symmetric ±15kV HBM protection. Use Value: 3.5pF capacitance avoids signal integrity degradation on 1Mbps CAN FD bus traces. |
| High-Speed Logic Level Translation | RF Detector Bias Network |
|
Use Scenario: Isolating 3.3V microcontroller GPIO from 5V peripheral I²C bus while maintaining rise/fall time integrity. IC Role / Device Role / Timing Role: Forward-biased diode pair used as passive level shifter with controlled voltage offset. Use Value: 0.72V VF provides predictable 0.7V drop, enabling robust 3.3V→5V translation without active circuitry. |
Use Scenario: Providing temperature-stable DC bias to Schottky detector diodes in 2.4GHz Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Low-leakage diode used in constant-current bias generator for RF envelope detection. Use Value: 100nA IR at 70V ensures minimal current error in µA-range bias currents across –40°C to +125°C. |
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 |
|---|---|---|---|
| BAT54CW-7-F | Single-pair Schottky diode; VF = 0.33V @ 10mA; trr not specified (Schottky inherently soft recovery) | Lacks AEC-Q101 qualification; higher leakage (>1µA @ 25V); unsuitable for high-temp automotive use | Select when ultra-low VF dominates over leakage and qualification requirements. |
| NSR0230P2T5G | Single Schottky diode; VF = 0.32V @ 100mA; 0.45pF CT; no dual configuration | Not a dual-diode array; requires two devices for same function; no common-cathode topology | Choose only for space-constrained single-path designs where dual functionality is unnecessary. |
Compared with BAT54CW-7-F and NSR0230P2T5G, MMBD4448HSDW-7-F uniquely delivers AEC-Q101 qualification, true dual-common-cathode architecture, and guaranteed 4ns trr - making it the sole option for automotive-grade, high-speed bidirectional clamping in compact layouts.
Availability
MMBD4448HSDW-7-F is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive CAN bus protection, and high-speed logic level translation requiring stable component supply and long-term lifecycle support.
Supply support for MMBD4448HSDW-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 sales operations across Asia, Europe, and North America.
The MMBD4448H series belongs to Diodes' high-speed switching diode product line, engineered specifically for compact, high-reliability clamping and steering in automotive, industrial, and communications equipment.
FAQ
Is MMBD4448HSDW-7-F pin-compatible with MMBD4448HADW-7-F?
Yes - both share identical SOT363 packaging and pinout: pins 1–2 and 4–5 are anodes, pin 3 is the common cathode, and pin 6 is NC. The suffix difference (SDW vs ADW) reflects internal wafer lot and test bin variations, not functional or mechanical divergence.
What is the maximum continuous forward current per diode element?
The absolute maximum forward current is 500mA per diode element under TA = +25°C with FR-4 PCB layout using a 1-inch² 2oz copper pad. Derating applies above 25°C ambient, following the 625°C/W RθJA curve shown in Figure 1 of DS30153 Rev. 20-2.
Does this part support bidirectional signal clamping?
No - the common-cathode configuration supports only unidirectional clamping (anode-to-cathode). For bidirectional clamping, two devices are required: one with cathode tied to VCC (for negative transients) and one with cathode tied to GND (for positive transients).
Can MMBD4448HSDW-7-F replace BAT54 series in existing designs?
Only with circuit review: BAT54 is Schottky (lower VF, no trr spec, higher IR), while MMBD4448HSDW-7-F is fast PN (higher VF, 4ns trr, lower IR). Substitution may affect timing margins in high-frequency paths or bias stability in low-current analog nodes.
MMBD4448HSDW-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Pair Series Connection
- 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
MMBD4448HSDW-7-F FAQ
1.How can I place an order for MMBD4448HSDW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4448HSDW-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 MMBD4448HSDW-7-F reliable?
The price and inventory of MMBD4448HSDW-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 MMBD4448HSDW-7-F is usually 5 days.
3.What payment methods are accepted for MMBD4448HSDW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4448HSDW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4448HSDW-7-F?
MMBD4448HSDW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4448HSDW-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 MMBD4448HSDW-7-F?
For technical support, including MMBD4448HSDW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4448HSDW-7-F requirements.
6.How does Aetrix verify that MMBD4448HSDW-7-F is sourced from the original manufacturer or authorized distributors?
All MMBD4448HSDW-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 MMBD4448HSDW-7-F meets industry standards.
7.What is the process for return or replacement of MMBD4448HSDW-7-F?
All MMBD4448HSDW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4448HSDW-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 MMBD4448HSDW-7-F part is unused and in its original packaging.
Return procedure for MMBD4448HSDW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4448HSDW-7-F 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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