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Diodes Incorporated MMBD4448HAQW-7-F
- Part No.:
- MMBD4448HAQW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBD4448HAQW-7-F.pdf
- Description:
- DIODE ARRAY GP 80V 250MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:7,311
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Product details
Overview
MMBD4448HAQW-7-F from Diodes Incorporated is a surface-mount fast-switching dual diode array in SOT363 package, configured as two independent high-speed switching diodes. It delivers 80 V peak repetitive reverse voltage, 4 ns reverse recovery time, and 0.72 V max forward voltage at 5 mA - enabling reliable signal routing and clamping in high-frequency digital logic interfaces and power rail protection circuits.
For engineers reviewing the MMBD4448HAQW-7-F datasheet, MMBD4448HAQW-7-F pinout, MMBD4448HAQW-7-F application, or MMBD4448HAQW-7-F equivalent, key selection criteria include verified 4 ns trr performance, low 3.5 pF junction capacitance at 6 V, AEC-Q101 qualification for automotive-grade reliability, and SOT363 footprint compatibility with space-constrained PCB layouts.
Technical Context
This dual diode array integrates two discrete high-speed silicon switching diodes in a single compact SOT363 package. Each diode exhibits tightly controlled reverse recovery characteristics (trr ≤ 4 ns) and low forward voltage drop (VF ≤ 0.72 V @ 5 mA), optimized for use in high-speed logic clamping, waveform shaping, and transient suppression where minimal delay and low conduction loss are critical.
The device operates across –55 °C to +150 °C, supports 500 mA continuous forward current per diode, and maintains low leakage (IR ≤ 100 nA @ 70 V) even under elevated temperature and voltage stress - making it suitable for industrial control I/O conditioning and automotive body electronics signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Reverse Voltage | 80 V - supports DC blocking and transient suppression in 24 V and 48 V automotive and industrial bus lines |
| Reverse Recovery Time | 4.0 ns max - enables clean switching in >100 MHz digital signal paths without tail current distortion |
| Forward Voltage | 0.72 V max @ 5 mA - minimizes power loss and self-heating in low-current bias and level-shifting networks |
| Junction Capacitance | 3.5 pF max @ 6 V - preserves signal integrity in RF-coupled and high-speed data line applications |
| Reverse Leakage Current | 100 nA max @ 70 V - ensures stable DC bias points in precision analog front-ends and sensor interfaces |
| Package | SOT363 - 6-pin, dual-diode configuration with common cathode or independent terminals per datasheet pinout |
Pinout & Package
MMBD4448HAQW-7-F is housed in a 6-pin SOT363 plastic surface-mount package with matte tin-plated leads, moisture sensitivity level 1, and UL 94V-0 flammability rating. Weight is 0.006 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Input terminal for first diode; connects to signal source or positive rail in clamp/steering configurations |
| A2 | Anode of Diode 2 | Independent anode for second diode; allows dual-channel signal routing or redundancy |
| C1 | Cathode of Diode 1 | Output/return path for Diode 1; often tied to reference voltage or ground in clamping |
| C2 | Cathode of Diode 2 | Separate cathode node enabling independent biasing or differential clamping |
| NC | No Connect | Unbonded internal pad; must remain unconnected on PCB to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| Fast reverse recovery | trr ≤ 4 ns ensures minimal switching distortion in clock distribution and data line termination |
| Low forward voltage | VF ≤ 0.72 V @ 5 mA reduces voltage drop in low-power logic interface protection circuits |
| Low junction capacitance | CT ≤ 3.5 pF @ 6 V preserves bandwidth in high-frequency signal steering and RF detector inputs |
| AEC-Q101 qualified | Validated for automotive applications including body control modules and infotainment I/O protection |
Applications
| High-Speed Logic Clamping | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting CMOS input pins from ESD-induced overvoltage during hot-plug events in FPGA I/O banks. IC Role / Device Role / Timing Role: Fast clamping diode shunting transients to VCC or GND before logic threshold violation occurs. Use Value: 4 ns trr and 3.5 pF CT prevent signal edge degradation while maintaining sub-100 ns response to ±8 kV HBM pulses. |
Use Scenario: Level-shifting and overvoltage protection for analog outputs from Hall-effect position sensors in EPS systems. IC Role / Device Role / Timing Role: Bidirectional signal limiter between 5 V sensor output and 3.3 V microcontroller ADC input. Use Value: 0.72 V VF and 100 nA IR ensure minimal offset error and no loading effect on millivolt-level sensor signals. |
| Industrial PLC Digital Input Protection | USB Data Line Transient Suppression |
Use Scenario: Isolating 24 V DC field inputs from controller-side logic using optocoupler drive circuitry. IC Role / Device Role / Timing Role: Reverse-polarity and surge protection diode in series with optocoupler LED anode. Use Value: 80 V VRRM withstands induced surges on factory floor wiring; 500 mA IFM supports sustained LED drive current. |
Use Scenario: ESD protection on USB 2.0 D+ and D− lines prior to USB transceiver IC. IC Role / Device Role / Timing Role: Low-capacitance steering diode diverting ±15 kV contact discharge to VBUS or GND rails. Use Value: 3.5 pF CT avoids signal integrity loss at 480 Mbps; AEC-Q101 qualification adds robustness for automotive USB ports. |
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 |
|---|---|---|---|
| BAT54C-7-F | Lower VRRM (30 V), higher VF (0.8 V @ 10 mA), same SOT363 package | Limited to 5 V logic domains; unsuitable for 24 V industrial or automotive supply-rail clamping | Select when cost-sensitive consumer designs require only 3.3/5 V interface protection and lower trr is not critical |
| NSR0230P2T5G | Single diode, SOD-523 package, 30 V VRRM, 0.35 V VF @ 100 mA | Not pin-compatible; requires redesign for dual-diode functionality and layout space | Choose only if ultra-low VF dominates design priority and dual-diode integration is unnecessary |
Compared with BAT54C-7-F and NSR0230P2T5G, MMBD4448HAQW-7-F uniquely balances 80 V blocking, 4 ns speed, and dual-diode integration in automotive-qualified SOT363 - making it the only option supporting both 24 V industrial I/O and high-speed data line clamping without trade-offs in voltage rating or footprint.
Availability
MMBD4448HAQW-7-F is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC digital input modules, and high-speed USB/PCIe signal integrity protection requiring stable component supply and long-term manufacturing continuity.
Supply support for MMBD4448HAQW-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, specializing in high-reliability components for automotive, industrial, and computing markets with ISO/TS 16949 and IATF16949 certified facilities.
This device belongs to Diodes' MMBD4448H series of fast-switching diode arrays, engineered specifically for AEC-Q101-compliant signal conditioning and transient protection in harsh-environment electronic control units.
FAQ
Is MMBD4448HAQW-7-F pin-compatible with MMBD4448HCQW-7-F?
No - MMBD4448HAQW-7-F uses the SOT363 package with six terminals (A1, A2, C1, C2, NC, and shared ground), while MMBD4448HCQW-7-F is in SOT353 (five-terminal) with different pin mapping. Layout redesign is required for substitution; refer to respective package drawings DS30153 Rev. 20–2 Figures 1 and 2.
What is the maximum operating temperature for continuous use?
The device is rated for continuous operation from –55 °C to +150 °C junction temperature. Derating begins above +25 °C ambient per Figure 1: at +85 °C ambient, maximum allowable power dissipation drops to 100 mW due to RθJA = 625 °C/W on FR-4 with 1-inch² copper pad.
Does this part support bidirectional ESD protection?
Yes - each diode functions as a unidirectional clamp, but the dual-diode configuration allows implementation of bidirectional TVS-like behavior when paired with external resistors and appropriate biasing (e.g., one diode anode to VBUS, cathode to signal; second diode cathode to GND, anode to signal). Full bidirectional capability requires external circuit design.
Can MMBD4448HAQW-7-F replace BAT54CW in existing designs?
Only with validation - BAT54CW has 30 V VRRM and 5 ns trr, whereas MMBD4448HAQW-7-F offers 80 V VRRM and 4 ns trr but differs in leakage (100 nA vs. 1 µA), capacitance (3.5 pF vs. 10 pF), and thermal resistance. Electrical and layout compatibility must be confirmed per application voltage, speed, and board space constraints.
MMBD4448HAQW-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 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
MMBD4448HAQW-7-F FAQ
1.How can I place an order for MMBD4448HAQW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4448HAQW-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 MMBD4448HAQW-7-F reliable?
The price and inventory of MMBD4448HAQW-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 MMBD4448HAQW-7-F is usually 5 days.
3.What payment methods are accepted for MMBD4448HAQW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4448HAQW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4448HAQW-7-F?
MMBD4448HAQW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4448HAQW-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 MMBD4448HAQW-7-F?
For technical support, including MMBD4448HAQW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4448HAQW-7-F requirements.
6.How does Aetrix verify that MMBD4448HAQW-7-F is sourced from the original manufacturer or authorized distributors?
All MMBD4448HAQW-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 MMBD4448HAQW-7-F meets industry standards.
7.What is the process for return or replacement of MMBD4448HAQW-7-F?
All MMBD4448HAQW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4448HAQW-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 MMBD4448HAQW-7-F part is unused and in its original packaging.
Return procedure for MMBD4448HAQW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4448HAQW-7-F 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
-
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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