Diodes Incorporated BAS20DW-7
- Part No.:
- BAS20DW-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
BAS20DW-7.pdf
- Description:
- DIODE ARRAY GP 150V 200MA SOT363
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
BAS20DW-7 from Diodes Incorporated is a surface-mount dual high-voltage switching diode in SOT363 package, featuring 200 V repetitive peak reverse voltage (VRRM), 1.25 V max forward voltage at 200 mA, and 50 ns reverse recovery time (tRR). It delivers low leakage (100 nA at 150 V, TA = +25°C) and 200 mW power dissipation for compact DC-DC converter flyback clamping and signal-level voltage switching.
For engineers reviewing the BAS20DW-7 datasheet, BAS20DW-7 pinout, BAS20DW-7 application, or BAS20DW-7 equivalent, this dual diode supports high-reliability industrial sensing interfaces, automotive body control modules requiring AEC-Q101 qualification, and space-constrained power supply snubbers where fast recovery and high VRWM are critical.
Technical Context
This dual discrete diode integrates two independent high-voltage junctions in a single SOT363 thermally optimized package, enabling shared thermal management without cross-coupling. Its 625 °C/W junction-to-ambient thermal resistance is specified under JEDEC-standard FR-4 board conditions with defined copper pad layout.
The device operates across –65°C to +150°C ambient range and sustains 2.5 A non-repetitive surge current (t = 1.0 µs). Reverse breakdown is guaranteed at 200 V minimum (IR = 100 µA), with capacitance stabilized at 5.0 pF (VR = 0, f = 1 MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Withstands repetitive reverse transients up to 200 V without avalanche conduction. |
| VF @ 200 mA | 1.25 V max - Limits forward conduction loss in high-frequency switching paths. |
| tRR | 50 ns - Enables operation in >1 MHz switching topologies with minimal reverse recovery loss. |
| IR @ 150 V | 100 nA - Ensures minimal leakage in high-impedance bias networks and precision voltage references. |
| PD | 200 mW - Supports continuous operation in thermally constrained PCB layouts with standard FR-4 mounting. |
| CT @ 0 V | 5.0 pF - Maintains signal integrity in RF detector and high-speed logic interface applications. |
Pinout & Package
Package: SOT363 - 6-pin ultra-small outline transistor package with gull-wing leads, 0.65 mm pitch, and 2.15 mm × 2.10 mm footprint. Molded green compound rated UL 94V-0; moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Primary current entry point for first diode; connects to input rail or switching node. |
| 2 | Cathode of Diode 1 | Current exit path for Diode 1; ties to ground or output filter capacitor. |
| 3 | NC | No internal connection; electrically isolated; may be left floating or grounded for EMI reduction. |
| 4 | Cathode of Diode 2 | Shared cathode configuration enables common-cathode dual rectification or clamp topology. |
| 5 | Anode of Diode 2 | Independent anode for second diode; used in dual-rail protection or differential signal routing. |
| 6 | NC | No internal connection; no electrical function; recommended to terminate per PCB layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| High VRRM / Low CT ratio | 200 V / 5.0 pF enables high-voltage isolation without compromising RF response in ESD-coupled lines. |
| AEC-Q101 qualified | Validated for automotive under-hood applications including lighting drivers and sensor signal conditioning. |
| Lead-free & halogen-free | Meets RoHS 3 (2015/863/EU) and Diodes Inc.'s "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb). |
| Fast tRR with low IFSM | 50 ns recovery paired with 2.5 A surge rating supports robust transient suppression in SMPS feedback loops. |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 24 V digital inputs against load dump and inductive kickback in door module ECUs. IC Role / Device Role / Timing Role: Dual clamping diode providing bidirectional transient voltage suppression on two independent signal lines. Use Value: 200 V VRRM and 50 ns tRR ensure reliable clamping during 120 V/10 ms load dump pulses without latch-up. |
Use Scenario: Isolating field-side 24 V sensor inputs from backplane logic in modular I/O racks. IC Role / Device Role / Timing Role: Common-cathode dual diode performing reverse polarity and overvoltage protection per channel. Use Value: 100 nA leakage at 150 V prevents false triggering in high-impedance optocoupler input stages. |
| DC-DC Converter Snubber | RF Detector Circuit |
Use Scenario: Absorbing leakage inductance energy in synchronous buck converter high-side FET drain nodes. IC Role / Device Role / Timing Role: Fast-recovery clamp diode placed between switch node and input rail to limit voltage overshoot. Use Value: 50 ns tRR and 200 mW PD allow repeated energy dissipation without thermal runaway at 500 kHz switching. |
Use Scenario: Demodulating 900 MHz ISM band signals in low-power wireless sensor receivers. IC Role / Device Role / Timing Role: Zero-bias RF detector diode leveraging low CT and sharp turn-on for envelope detection. Use Value: 5.0 pF CT minimizes capacitive loading on antenna matching network while maintaining 200 V breakdown margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage dual switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAS21DW-7 | 250 V VRRM, 200 V VRWM; otherwise identical pinout, thermal, and electrical specs. | Preferred for 24 V systems exposed to higher transients (e.g., commercial vehicle CAN bus nodes). | Select when system-level surge testing exceeds 200 V but SOT363 footprint and layout must be retained. |
| MMBD2004S-7 | 200 V VRRM, but 100 ns tRR and 250 nA IR at 150 V; same SOT363 package. | Suitable for lower-frequency (<500 kHz) clamping where leakage tolerance is relaxed. | Choose only if cost sensitivity outweighs recovery speed requirements and leakage budget allows 2.5× increase. |
Compared with BAS21DW-7, the BAS20DW-7 trades 50 V reverse margin for tighter leakage control; versus MMBD2004S-7, it delivers 2× faster recovery and half the leakage-critical for high-frequency, low-noise applications.
Availability
BAS20DW-7 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input stages, and DC-DC converter snubber circuits requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for BAS20DW-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, specializing in high-reliability components for automotive, industrial, and computing markets since 1964.
The BAS20DW-7 belongs to Diodes' high-voltage switching diode product line, engineered specifically for compact, high-efficiency transient suppression and signal-level switching in thermally dense environments.
FAQ
Is BAS20DW-7 pin-compatible with BAS21DW-7?
Yes, BAS20DW-7 and BAS21DW-7 share identical SOT363 pinout, thermal characteristics, and mechanical dimensions. The only functional difference is the guaranteed minimum reverse breakdown voltage: 200 V for BAS20DW-7 versus 250 V for BAS21DW-7. No PCB redesign is needed when substituting between them.
What is the maximum continuous forward current per diode in BAS20DW-7?
The datasheet specifies 400 mA peak forward current (IFM) for the dual-diode configuration loaded in parallel. For continuous operation with both diodes active, the average rectified output current (IO) is 200 mA. Derating applies above +25°C ambient per the published derating curve.
Does BAS20DW-7 meet AEC-Q101 for automotive use?
No-only the automotive-grade variant BAS20DWQ-13 is AEC-Q101 qualified and PPAP capable. The BAS20DW-7 is commercial-grade, though it shares identical electrical and thermal performance with the Q-grade part. Automotive designs require explicit use of the Q-suffix version.
Can BAS20DW-7 be used in zero-bias RF detector applications?
Yes-its 5.0 pF total capacitance at 0 V and low series resistance enable effective RF envelope detection up to 1 GHz. The 200 V VRRM provides headroom for signal peaks, and the 50 ns tRR ensures minimal distortion in pulsed RF waveforms typical in ISM-band sensor transceivers.
BAS20DW-7 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 Independent
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 150 V
- Current - Average Rectified (Io) (per Diode):
- 200mA
- 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
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-363
BAS20DW-7 FAQ
1.How can I place an order for BAS20DW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAS20DW-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 BAS20DW-7 reliable?
The price and inventory of BAS20DW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAS20DW-7 is usually 5 days.
3.What payment methods are accepted for BAS20DW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAS20DW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAS20DW-7?
BAS20DW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAS20DW-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 BAS20DW-7?
For technical support, including BAS20DW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAS20DW-7 requirements.
6.How does Aetrix verify that BAS20DW-7 is sourced from the original manufacturer or authorized distributors?
All BAS20DW-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 BAS20DW-7 meets industry standards.
7.What is the process for return or replacement of BAS20DW-7?
All BAS20DW-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAS20DW-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 BAS20DW-7 part is unused and in its original packaging.
Return procedure for BAS20DW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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