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Diodes Incorporated MMBD4448V-7
- Part No.:
- MMBD4448V-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- SOT-563, SOT-666
- Datasheet:
-
MMBD4448V-7.pdf
- Description:
- DIODE ARRAY GP 80V 250MA SOT-563
- Quantity:
- Payment:
- Shipping:
Inventory:2,890
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Product details
Overview
MMBD4448V-7 from Diodes Incorporated is a dual ultra-fast switching diode in SOT-563 package, configured as two isolated diodes with opposing polarity (anode-cathode and cathode-anode), rated for 80 V repetitive reverse voltage, 500 mA forward current, and 4.0 ns reverse recovery time, used in high-speed signal routing and polarity-selective clamping circuits in portable power management.
For engineers reviewing the MMBD4448V-7 datasheet, MMBD4448V-7 pinout, MMBD4448V-7 application, or MMBD4448V-7 equivalent, this device supports compact dual-diode functions where space-constrained PCBs require fast switching, low leakage (<30 µA at VR = 75 V, TJ = +150°C), and automotive-grade reliability without lead or halogen content.
Technical Context
This dual diode integrates two independent PN junctions in a single SOT-563 package with non-polarized mechanical orientation - terminals are not marked anode/cathode on package, but internal schematic confirms A1/C1 and A2/C2 pairing with opposite polarity. Each diode operates independently under separate bias conditions.
Thermal design relies on FR-4 PCB mounting per JEDEC standard layout (1" × 0.85", 0.062" thickness), delivering 833 °C/W junction-to-ambient thermal resistance and enabling continuous operation up to +150°C ambient with 150 mW power dissipation limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VRRM) | 80 V - maximum DC blocking capability before breakdown, suitable for 24–48 V system rail clamping |
| Forward Current (IFM) | 500 mA - peak pulsed current handling per diode, supporting transient surge suppression |
| Reverse Recovery Time (trr) | 4.0 ns - enables >100 MHz switching in sample-and-hold or RF detector paths |
| Forward Voltage (VF) | 0.72 V @ 10 mA - low conduction loss for battery-powered signal path steering |
| Leakage Current (IR) | 30 µA @ VR = 75 V, TJ = +150°C - stable leakage performance in under-hood automotive environments |
| Capacitance (CT) | 3.5 pF @ VR = 6 V, f = 1 MHz - minimal signal distortion in high-frequency AC coupling |
Pinout & Package
SOT-563 is a 6-pin ultra-small surface-mount package with 0.5 mm pitch, 1.6 mm × 1.6 mm footprint, and 0.6 mm height. Terminals are matte tin over copper, solderable per MIL-STD-202 Method 208, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (A1) | Anode of Diode 1 | Forward bias input for first diode; connects to signal source in clamp configuration |
| Pin 2 (C1) | Cathode of Diode 1 | Output node for Diode 1; tied to reference or load in polarity-selective routing |
| Pin 3 (NC) | No Connect | Internally unconnected; no electrical function - must remain floating |
| Pin 4 (NC) | No Connect | Internally unconnected; no electrical function - must remain floating |
| Pin 5 (A2) | Anode of Diode 2 | Forward bias input for second diode; oriented opposite to Diode 1 for bidirectional control |
| Pin 6 (C2) | Cathode of Diode 2 | Output node for Diode 2; enables complementary clamping or logic-level translation |
Key Features
| Feature | Design Value |
|---|---|
| Dual opposing-polarity diodes | Enables single-package implementation of bidirectional signal clamping or polarity-reversal detection |
| 4.0 ns reverse recovery | Supports clean edge integrity in 100+ MHz clock distribution and RF envelope detection |
| 3.5 pF junction capacitance | Minimizes loading on high-Z analog nodes such as op-amp inputs or ADC references |
| AEC-Q101 qualified option available | Validated for automotive under-hood applications including body control modules and sensor interfaces |
| Halogen- and antimony-free "Green" construction | Meets IEC 61249-2-21 and IPC-4101D requirements for eco-compliant industrial assembly |
Applications
| USB Data Line Protection | High-Speed Logic Level Translation |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+/D− lines from ESD and overvoltage transients while preserving signal integrity up to 480 Mbps. IC Role / Device Role: Dual clamping diode providing symmetrical voltage limiting to VBUS and GND rails. Use Value: 4.0 ns trr prevents data eye closure; 3.5 pF CT avoids signal rise-time degradation beyond USB 2.0 spec limits. |
Use Scenario: Translating 1.8 V logic outputs to 3.3 V inputs in mixed-voltage FPGA I/O banks. IC Role / Device Role: Passive level shifter using forward-biased diode drop and pull-up resistors. Use Value: Opposing polarity configuration allows shared cathode/anode connection to enable bidirectional translation without external active components. |
| Automotive LIN Bus Interface | Portable Audio Signal Routing |
|
Use Scenario: Isolating LIN transceiver TX/RX pins from microcontroller GPIO during sleep mode to prevent leakage-induced wake-up. IC Role / Device Role: Reverse-biased isolation diode blocking parasitic current paths in 12 V vehicle networks. Use Value: <30 µA IR at +150°C ensures reliable sleep-state current budget compliance in junction-box modules. |
Use Scenario: Steering audio signals between headphone amplifier output and speaker driver in dual-output portable media players. IC Role / Device Role: Fast-switching signal path selector using diode OR-ing with minimal forward drop. Use Value: 0.72 V VF at 10 mA reduces insertion loss versus Schottky alternatives, preserving SNR in 24-bit DAC output stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual fast-switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAT54C-7-F | Single-pair Schottky, 30 V VRRM, 240 mV VF @ 10 mA, 5 ns trr | Lower VF improves efficiency in low-voltage biasing; lower VRRM restricts use to ≤24 V systems | Select when minimizing forward loss is critical and reverse voltage stress remains below 30 V |
| NSR0230HT1G | Single Schottky, 30 V VRRM, 275 mV VF @ 10 mA, 3 ns trr, SOD-523 | Smaller 2-pin package lacks dual-opposing topology; requires two devices for same functionality | Choose only if board area permits discrete duplication and 30 V rating suffices |
Compared with BAT54C-7-F and NSR0230HT1G, MMBD4448V-7 uniquely delivers 80 V blocking, dual opposing polarity, and automotive-ready construction in one SOT-563 footprint - making it optimal for space-limited, high-reliability 48 V and LIN applications where integrated dual functionality matters.
Availability
MMBD4448V-7 is available at Aetrix Electronics and suitable for USB interface protection, automotive LIN bus isolation, portable audio signal routing, and high-speed logic level translation requiring stable component supply across production lifecycles.
Supply support for MMBD4448V-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 MMBD4448V-7 belongs to Diodes' high-speed switching diode product line, engineered specifically for compact, high-frequency signal conditioning in automotive, computing, and portable electronics where dual-diode integration and RoHS/Green compliance are mandatory.
FAQ
What does the "-7" suffix indicate in MMBD4448V-7?
The "-7" suffix denotes tape-and-reel packaging: 3,000 units per reel in SOT-563 carrier tape, compliant with EIA-481-D standards. It does not affect electrical specifications or reliability ratings - all MMBD4448V variants share identical die and parametric performance.
Is MMBD4448V-7 suitable for automotive applications?
Yes - while the standard MMBD4448V-7 is not AEC-Q101 certified, Diodes Incorporated offers a qualified version (MMBD4448VQ-7) with full PPAP documentation, manufactured in IATF 16949-certified facilities, and tested to AEC-Q101 stress requirements for temperature cycling, HTRB, and ESD.
Why are Pins 3 and 4 labeled "NC" but present in SOT-563?
Pins 3 and 4 are structural leads in the SOT-563 leadframe that provide mechanical stability and thermal conduction but are not bonded to the silicon die. They must remain unconnected in circuit layout to avoid unintended shorting or parasitic coupling.
How does the opposing polarity configuration benefit circuit design?
The A1/C1 and A2/C2 pairing enables single-package implementation of bidirectional clamping (e.g., ±V protection), polarity-insensitive signal routing, or dual-rail logic translation - eliminating the need for two separate diodes and reducing PCB area by ~40% versus discrete solutions.
MMBD4448V-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 2 Independent
- 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-563
MMBD4448V-7 FAQ
1.How can I place an order for MMBD4448V-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4448V-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 MMBD4448V-7 reliable?
The price and inventory of MMBD4448V-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBD4448V-7 is usually 5 days.
3.What payment methods are accepted for MMBD4448V-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4448V-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4448V-7?
MMBD4448V-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4448V-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 MMBD4448V-7?
For technical support, including MMBD4448V-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4448V-7 requirements.
6.How does Aetrix verify that MMBD4448V-7 is sourced from the original manufacturer or authorized distributors?
All MMBD4448V-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 MMBD4448V-7 meets industry standards.
7.What is the process for return or replacement of MMBD4448V-7?
All MMBD4448V-7 units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4448V-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 MMBD4448V-7 part is unused and in its original packaging.
Return procedure for MMBD4448V-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4448V-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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