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Diodes Incorporated MMBD4148TW-7-F
- Part No.:
- MMBD4148TW-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
MMBD4148TW-7-F.pdf
- Description:
- DIODE ARRAY GP 75V 150MA SOT-363
- Quantity:
- Payment:
- Shipping:
Inventory:36,814
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Product details
Overview
MMBD4148TW-7-F from Diodes Incorporated is a dual-channel surface-mount fast-switching diode array in SOT363 package, rated for 75 V peak repetitive reverse voltage, 300 mA forward current, and 4.0 ns reverse recovery time. It delivers high conductance and low forward voltage (0.715 V at 1 mA), suited for high-speed signal routing and clamping in compact DC-DC converter feedback paths.
For engineers reviewing the MMBD4148TW-7-F datasheet, MMBD4148TW-7-F pinout, MMBD4148TW-7-F application, or MMBD4148TW-7-F equivalent, key selection criteria include reverse recovery speed, dual-diode integration in ultra-small footprint, thermal resistance (625 °C/W), and RoHS-compliant lead-free plating on Alloy 42 leadframe.
Technical Context
This dual diode array integrates two independent, electrically isolated silicon switching diodes in a single SOT363 package. Each element exhibits matched electrical characteristics: VF ≤ 0.855 V at IF = 10 mA, IR ≤ 1.0 µA at VR = 75 V, and CT ≤ 2.0 pF at VR = 0 V, f = 1 MHz.
The device operates across –55 °C to +150 °C and supports fast transient response due to its 4.0 ns trr and low junction-to-ambient thermal resistance. Its design targets space-constrained, high-frequency switching nodes where parasitic capacitance and recovery lag must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRM | 100 V non-repetitive peak reverse voltage - defines absolute maximum transient overvoltage tolerance per diode |
| VRRM | 75 V peak repetitive reverse voltage - sets continuous blocking capability in rectifier/clamp roles |
| IFM | 300 mA forward current - supports moderate-current logic-level signal steering or snubbing |
| trr | 4.0 ns reverse recovery time - enables operation up to ~80 MHz switching frequencies without tail current loss |
| CT | 2.0 pF total capacitance at VR = 0 V - minimizes signal distortion in RF coupling and high-speed data line protection |
| RθJA | 625 °C/W junction-to-ambient thermal resistance - requires minimal PCB copper area for thermal management at 200 mW PD |
| Operating Temp | –55 °C to +150 °C - qualified for industrial and automotive-adjacent environments without derating |
Pinout & Package
Package: SOT363 - ultra-small 6-pin surface-mount plastic package (2.15 mm × 2.10 mm × 0.95 mm), moisture sensitivity level 1, matte tin-plated Alloy 42 leadframe, UL 94V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (A1) | Anode of Diode 1 | Input node for first diode's forward conduction path; polarity-marked on top-side marking bar |
| Pin 2 (A2) | Anode of Diode 2 | Independent anode terminal enabling dual-channel discrete routing without shared cathode |
| Pin 3 (C1) | Cathode of Diode 1 | Output/return node for Diode 1; electrically isolated from C2 |
| Pin 4 (C2) | Cathode of Diode 2 | Output/return node for Diode 2; supports independent biasing or common-cathode configuration via external trace |
| Pin 5 (A3) | No Connect | Internally unconnected; must remain floating or tied to ground only if required by EMI layout rules |
| Pin 6 (C3) | No Connect | Internally unconnected; no internal bond wire; not usable as thermal pad or auxiliary terminal |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 4.0 ns trr enables clean edge transitions in 20–100 MHz clock distribution and pulse shaping circuits |
| Dual-diode integration | Two matched, isolated diodes in one SOT363 footprint reduce board area by >40% vs. discrete SOT23 solutions |
| Low forward voltage | VF = 0.715 V @ 1 mA ensures minimal voltage drop in low-power logic-level clamping and level-shifting |
| High-temperature operation | Rated to +150 °C junction temperature supports use in enclosed power supplies and motor drive control boards |
| Green, lead-free construction | Halogen- and antimony-free molding compound (<900 ppm Br+Cl, <1000 ppm Sb) meets automotive and industrial environmental mandates |
Applications
| Signal Clamping in High-Speed Data Lines | DC-DC Converter Feedback Path Protection |
|---|---|
Use Scenario: Protecting USB 2.0 or LVDS receiver inputs from ESD-induced overshoot during hot-plug events. IC Role / Device Role: Dual-diode clamp referenced to VDD and GND, limiting input swing to ±0.7 V beyond rail. Use Value: 4.0 ns trr prevents latch-up during fast transients; 2.0 pF CT avoids signal integrity degradation at 480 Mbps. | Use Scenario: Isolating optocoupler feedback signals in isolated flyback converters to prevent false regulation during load steps. IC Role / Device Role: Fast-recovery diode in series with opto-LED anode to block reverse leakage from compensation network. Use Value: 1.0 µA IR at 75 V ensures <1% error in 10 µA feedback current; SOT363 fits tight spacing near TL431. |
| Logic-Level Translation Interface | EMI Filter Diode Pair in Sensor Signal Conditioning |
Use Scenario: Level-shifting I²C signals between 3.3 V microcontroller and 5 V sensor hub while maintaining bus rise time. IC Role / Device Role: Bidirectional clamping diode pair (anodes tied to 3.3 V, cathodes to SDA/SCL) for passive translation. Use Value: Matched VF ensures symmetric high/low thresholds; dual layout eliminates timing skew between SDA/SCL paths. | Use Scenario: Suppressing RF ingress on thermocouple or strain gauge analog front-end inputs in industrial PLC modules. IC Role / Device Role: Back-to-back diode configuration (A1–C2 and A2–C1) across differential input to shunt RF energy to ground. Use Value: Low CT preserves <100 kHz signal bandwidth; 150 °C rating sustains reliability near motor drive heat sources. |
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 |
|---|---|---|---|
| BAS16TW-7-F | Identical package, pinout, and electrical specs; same die, alternate part number per Diodes' dual-marking policy | No functional difference; used interchangeably in BOMs and layouts | Select when cross-referencing legacy BAS16 designations or sourcing from distributors listing BAS16TW first |
| MMBD7000-7-F | Higher VRRM (100 V), slower trr (6.0 ns), higher VF (0.85 V @ 10 mA); same SOT363 package | Better for higher-voltage clamping but less suitable for >50 MHz signal integrity | Choose for 100 V systems where speed is secondary; avoid in high-frequency data paths requiring <5 ns recovery |
Compared with BAS16TW-7-F, MMBD4148TW-7-F offers identical performance and fit; versus MMBD7000-7-F, it trades 25 V blocking margin for 2 ns faster recovery and 135 mV lower VF at 10 mA - critical for precision low-voltage signal conditioning.
Availability
MMBD4148TW-7-F is available at Aetrix Electronics and suitable for high-speed signal clamping, DC-DC feedback isolation, logic-level translation, and EMI filtering applications requiring stable component supply and consistent parametric performance across production lots.
Supply support for MMBD4148TW-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 centers across Asia and manufacturing in China, Taiwan, and the U.S.
This device belongs to Diodes' general-purpose fast-switching diode product line, engineered for high-volume, space-constrained applications in power management, interface protection, and signal integrity enhancement.
FAQ
What is the polarity configuration of the dual diodes in MMBD4148TW-7-F?
Pin 1 (A1) and Pin 3 (C1) form Diode 1; Pin 2 (A2) and Pin 4 (C2) form Diode 2. Both diodes are anode-cathode oriented with no internal connection between cathodes or anodes. Pins 5 and 6 are unconnected. Polarity is confirmed by the top-side marking bar adjacent to Pin 1.
Can MMBD4148TW-7-F replace single-diode SOT23 parts like 1N4148 in existing designs?
Yes, but only with layout revision: each diode occupies half the SOT363 footprint, so direct replacement requires splitting traces to access individual anodes/cathodes. The dual configuration reduces part count but demands updated PCB routing - not a drop-in swap without redesign.
Is MMBD4148TW-7-F qualified for automotive applications?
No - the standard MMBD4148TW-7-F is not AEC-Q200 qualified. Diodes offers the automotive-grade BAS16TWQ variant (separate datasheet DS30154Q) with extended temperature screening, PPAP documentation, and failure rate reporting for automotive use.
How does the 625 °C/W RθJA affect thermal design in a typical 4-layer FR-4 board?
At 200 mW power dissipation, this RθJA yields a 125 °C junction-to-ambient rise - exceeding safe limits. Derating is required: at 25 °C ambient, max continuous IF drops to ~120 mA. Use minimum 10 mm² copper pour under the package and thermal vias to reduce effective RθJA below 300 °C/W for full-rated operation.
MMBD4148TW-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:
- 3 Independent
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io) (per Diode):
- 150mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 150 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 4 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 75 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
MMBD4148TW-7-F FAQ
1.How can I place an order for MMBD4148TW-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBD4148TW-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 MMBD4148TW-7-F reliable?
The price and inventory of MMBD4148TW-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 MMBD4148TW-7-F is usually 5 days.
3.What payment methods are accepted for MMBD4148TW-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBD4148TW-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBD4148TW-7-F?
MMBD4148TW-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBD4148TW-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 MMBD4148TW-7-F?
For technical support, including MMBD4148TW-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBD4148TW-7-F requirements.
6.How does Aetrix verify that MMBD4148TW-7-F is sourced from the original manufacturer or authorized distributors?
All MMBD4148TW-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 MMBD4148TW-7-F meets industry standards.
7.What is the process for return or replacement of MMBD4148TW-7-F?
All MMBD4148TW-7-F units undergo pre-shipment inspection (PSI). If there is an issue with MMBD4148TW-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 MMBD4148TW-7-F part is unused and in its original packaging.
Return procedure for MMBD4148TW-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBD4148TW-7-F Tags
-
BAV99-7-F
Diodes Incorporated
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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
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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