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Diodes Incorporated BAV20W-7
- Part No.:
- BAV20W-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAV20W-7.pdf
- Description:
- DIODE GEN PURP 150V 400MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:8,798
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Product details
Overview
BAV20W-7 from Diodes Incorporated is a surface-mount fast-switching silicon switching diode rated for 200 V peak repetitive reverse voltage, 400 mA forward current, and 50 ns reverse recovery time, housed in an SOD-123 package. It serves as a general-purpose high-speed switching element in power supply clamp, signal routing, and protection circuits across consumer and industrial electronics.
For engineers reviewing the BAV20W-7 datasheet, BAV20W-7 pinout, BAV20W-7 application, or BAV20W-7 equivalent, key selection criteria include reverse breakdown voltage (200 V), forward voltage drop at 100 mA (≤1.0 V), reverse leakage at 150 V (≤100 nA @ 25°C), thermal resistance (500 °C/W), and SOD-123 footprint compatibility with automated assembly.
Technical Context
This diode operates as a unidirectional, low-capacitance (5.0 pF at 0 V) PN junction device optimized for rapid turn-off in DC/DC converter snubbers, logic-level clamping, and flyback protection. Its 200 V VRWM rating supports operation in 12–48 V system rails with margin against transients.
The SOD-123 package enables compact board layout while maintaining 250 mW power dissipation at 25°C ambient and derating to zero at 150°C junction temperature. Polarity is marked by a cathode band, and terminals use matte tin-plated Alloy 42 leads compliant with J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 200 V - Maximum continuous reverse voltage before breakdown; sets safe operating limit in clamp and protection circuits |
| IF | 400 mA - Continuous forward current capacity; defines max steady-state conduction without thermal runaway |
| tRR | 50 ns - Reverse recovery time; enables reliable switching up to ~10 MHz in high-frequency rectification |
| VF @ 100 mA | ≤1.0 V - Forward voltage drop; determines conduction loss and self-heating in series-switched paths |
| CT @ 0 V | 5.0 pF - Junction capacitance; limits high-frequency signal distortion and crosstalk in RF/switching nodes |
| RθJA | 500 °C/W - Thermal resistance to ambient; requires minimal copper area for thermal management on FR-4 |
| IR @ 150 V | ≤100 nA @ 25°C - Reverse leakage; ensures low standby power in battery-backed or high-impedance sensing circuits |
Pinout & Package
Package: SOD-123 - Surface-mount plastic case (UL 94V-0), 0.01 g weight, cathode-band polarity marking, compatible with standard reflow profiles and automated pick-and-place.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node in forward-biased configuration; accepts up to 400 mA DC |
| Cathode | Forward current exit / reverse-blocking terminal | Marked by band; withstands up to 200 V reverse bias; critical for clamp orientation and ESD path design |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 50 ns tRR enables use in >1 MHz switching topologies without excessive switching loss |
| High reverse breakdown voltage | 200 V VRWM provides margin over 150 V nominal rails in industrial power supplies |
| SOD-123 surface-mount package | 0.01 g mass and standardized footprint support high-density PCB layouts and automated assembly |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU; no intentionally added lead, halogen, or antimony |
| Low junction capacitance | 5.0 pF at 0 V reverse bias minimizes signal loading in high-speed digital or RF interface clamps |
Applications
| Power Supply Clamp Circuit | Digital Logic Level Shifter |
|---|---|
Use Scenario: Clamping transient spikes on 24 V DC input rail of industrial PLC I/O module. IC Role / Device Role / Timing Role: Fast-switching diode providing low-impedance path to ground during overvoltage events. Use Value: 200 V VRWM and 50 ns tRR ensure effective suppression of 100–500 ns surges without latch-up or thermal failure. | Use Scenario: Translating 3.3 V logic signals to 5 V microcontroller inputs in embedded sensor interface. IC Role / Device Role / Timing Role: Passive level-shifting diode in series-anode configuration with pull-up resistor. Use Value: ≤1.0 V VF at 100 mA ensures minimal voltage drop and timing skew in 10 MHz data streams. |
| EMI Filter Snubber | Reverse Polarity Protection |
Use Scenario: RC-snubber network across relay coil in automotive body control module. IC Role / Device Role / Timing Role: Freewheeling diode absorbing inductive kickback energy during coil de-energization. Use Value: 400 mA IF and 250 mW PD sustain repeated 100 ms pulses without degradation. | Use Scenario: Input protection for USB-C power delivery circuit in portable medical device. IC Role / Device Role / Timing Role: Series-connected anode-in diode blocking reverse current during miswired connection. Use Value: 200 V VRWM and <100 nA IR prevent leakage-induced battery drain and ensure fail-safe isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4148W-7-F | 100 V VRWM, 300 mA IF, 4 ns tRR, same SOD-123 package | Lower voltage rating limits use to ≤75 V systems; faster recovery suits ultra-high-frequency signal routing | Select when speed > voltage margin is critical and system rail ≤75 V |
| BAV21W-7-F | 250 V VRWM, identical tRR, VF, and package; 50 V higher blocking capability | Enables use in 200 V intermediate bus or AC line-derived supplies where BAV20W's 200 V margin is insufficient | Select when additional reverse voltage headroom is required without changing layout or thermal design |
Compared with 1N4148W-7-F and BAV21W-7-F, BAV20W-7 delivers optimal balance of 200 V blocking, 50 ns switching, and SOD-123 manufacturability for mid-voltage industrial power and interface circuits-neither over-specified nor under-rated for 12–48 V platforms.
Availability
BAV20W-7 is available at Aetrix Electronics and suitable for industrial power supplies, embedded sensor interfaces, and automotive body electronics requiring stable component supply and RoHS-compliant sourcing.
Supply support for BAV20W-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 BAV19W–BAV21W series belongs to Diodes' general-purpose switching diode product line, engineered for cost-effective, high-reliability performance in automated SMT assembly environments across commercial and industrial applications.
FAQ
What is the maximum junction temperature for BAV20W-7?
The BAV20W-7 has an operating and storage temperature range of –55°C to +150°C. Its absolute maximum junction temperature is +150°C, with thermal derating beginning at +25°C ambient per the published power derating curve-250 mW at 25°C decreasing linearly to 0 mW at 150°C.
Is BAV20W-7 suitable for automotive applications?
No-BAV20W-7 is rated for commercial use only. For automotive applications, Diodes offers the AEC-Q101 qualified BAV20WQ-7-F variant, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949 certified facilities.
How does the SOD-123 package affect PCB layout?
The SOD-123 footprint requires specific pad dimensions (X = 0.90 mm, Y = 0.95 mm, X1 = 4.05 mm) per Diodes' package outline. Its small size supports high-density routing but demands precise stencil aperture design and reflow profile control to avoid tombstoning or solder bridging.
What is the typical reverse leakage current at elevated temperature?
At +100°C and rated DC blocking voltage (150 V), the BAV20W-7 exhibits ≤15 µA reverse leakage current (IRM), significantly higher than its 25°C value of ≤100 nA-this must be accounted for in thermally constrained or battery-powered designs where standby current is critical.
BAV20W-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io):
- 400mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 150 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAV20W-7 FAQ
1.How can I place an order for BAV20W-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV20W-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 BAV20W-7 reliable?
The price and inventory of BAV20W-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV20W-7 is usually 5 days.
3.What payment methods are accepted for BAV20W-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV20W-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV20W-7?
BAV20W-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV20W-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 BAV20W-7?
For technical support, including BAV20W-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV20W-7 requirements.
6.How does Aetrix verify that BAV20W-7 is sourced from the original manufacturer or authorized distributors?
All BAV20W-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 BAV20W-7 meets industry standards.
7.What is the process for return or replacement of BAV20W-7?
All BAV20W-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAV20W-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 BAV20W-7 part is unused and in its original packaging.
Return procedure for BAV20W-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV20W-7 Tags
-
1N4448X-TP
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1N4148WX-TP
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1N4148TR
onsemi
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BAS21LT1G
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LL4148
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MMSD914T1G
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BAV21W-7-F
Diodes Incorporated
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