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Diodes Incorporated BAV23S-7
- Part No.:
- BAV23S-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAV23S-7.pdf
- Description:
- DIODE ARRAY GP 200V 400MA SOT233
- Quantity:
- Payment:
- Shipping:
Inventory:9,230
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Product details
Overview
BAV23S-7 from Diodes Incorporated is a surface-mount high-voltage dual switching diode in SOT23 package, featuring 250 V repetitive peak reverse voltage (VRRM), 400 mA forward current (IF), and 50 ns reverse recovery time (tRR). It serves as a compact, fast-switching protection and signal routing element in DC-DC converter flyback snubbers, battery backup path selectors, and low-power logic-level clamping circuits.
For engineers reviewing the BAV23S-7 datasheet, BAV23S-7 pinout, BAV23S-7 application, or BAV23S-7 equivalent, key selection criteria include its dual-common-cathode configuration, 100 nA reverse leakage at 200 V/25°C, JEDEC-qualified reliability for industrial environments, and compatibility with automated SMT assembly on FR-4 PCBs.
Technical Context
The BAV23S-7 integrates two independent silicon switching diodes in a single SOT23-3 package with common cathode connection - confirmed by top-view marking diagrams and internal schematic in DS30042 Rev. 23-2. Its junction-to-ambient thermal resistance (RθJA) is 357°C/W under standard FR-4 mounting conditions, enabling operation up to +150°C ambient.
This device operates as a high-speed, high-voltage clamp or steering diode where fast tRR (≤50 ns) and low CT (≤5.0 pF at 0 V) minimize switching losses and capacitive loading in 1–10 MHz signal paths. The 250 V V(BR)R rating supports use in 24 V and 48 V industrial bus protection without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 250 V - Withstands repetitive reverse transients up to 250 V without breakdown, suitable for 48 V system overvoltage clamping. |
| IF | 400 mA - Continuous forward current per diode; supports dual-diode parallel load sharing in power path OR-ing. |
| tRR | 50 ns - Enables efficient switching in PWM frequencies up to ~2 MHz with minimal tail current loss. |
| VF | 1.0 V @ 100 mA - Low forward drop reduces conduction loss in battery-powered signal routing applications. |
| CT | 5.0 pF @ 0 V - Minimal junction capacitance preserves signal integrity in high-frequency data line clamping. |
| IR | 100 nA @ 200 V, 25°C - Ultra-low leakage maintains precision bias networks and high-impedance sensing nodes. |
Pinout & Package
Package: SOT23-3, surface-mount plastic package with matte tin-plated terminals, JEDEC-compliant footprint (2.40 mm × 1.30 mm × 1.03 mm), moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Input node for first diode path; routed to external signal or power source requiring unidirectional conduction. |
| Pin 2 | Cathode (Common) | Shared cathode connection for both diodes; ties to reference rail (e.g., VCC or ground) for clamping or OR-ing. |
| Pin 3 | Anode of Diode 2 | Independent input node for second diode path; enables dual-source selection or differential clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-cathode topology | Enables compact OR-ing of two independent power sources or signal paths using one SOT23 footprint. |
| JEDEC-qualified reliability | Qualified to AEC-Q standards for high-reliability industrial use, including extended temperature cycling (-55°C to +150°C). |
| Lead-free & halogen-free construction | Meets RoHS 3 (2015/863/EU) and "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb), supporting eco-compliant manufacturing. |
| Low thermal resistance mounting | 357°C/W RθJA on standard FR-4 allows full 400 mA rating without heatsinking in space-constrained designs. |
Applications
| DC-DC Converter Snubber | Battery Backup Path Selection |
|---|---|
Use Scenario: Suppresses voltage spikes across MOSFET drains in flyback and boost converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive kickback energy into RC snubber network. Use Value: 50 ns tRR and 250 V VRRM prevent secondary breakdown while minimizing snubber loss vs. slower general-purpose diodes. | Use Scenario: Selects between main supply and backup battery in portable medical monitors and IoT edge sensors. IC Role / Device Role / Timing Role: Dual-anode, common-cathode diode enabling automatic power source handover without control logic. Use Value: 100 nA IR prevents battery drain during standby; 1.0 V VF limits voltage drop in 3.3 V/5 V systems. |
| Logic-Level Signal Clamping | Industrial I/O Protection |
Use Scenario: Protects microcontroller GPIO pins from ESD and overvoltage transients on RS-232 or sensor interface lines. IC Role / Device Role / Timing Role: Bidirectional clamping diode (with external pull-up/down) limiting input swing to safe MCU voltage rails. Use Value: 5.0 pF CT avoids signal distortion at 10 Mbps; low leakage preserves high-impedance input bias accuracy. | Use Scenario: Shields PLC digital input modules from 24 V field wiring surges and polarity reversals. IC Role / Device Role / Timing Role: Reverse-polarity and transient protection diode placed before optocoupler input stage. Use Value: 250 V VRRM withstands IEC 61000-4-5 surge tests; SOT23 footprint fits dense terminal block layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-voltage switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV23C-7-F | Same package and ratings, but common-anode configuration instead of common-cathode. | Requires inverted PCB layout and reversed biasing for clamping or OR-ing functions. | Select when circuit requires shared anode (e.g., positive-rail clamping to multiple sources). |
| MMBD2836LT1G | Lower VRRM (100 V), higher IF (500 mA), same SOT23-3 common-cathode pinout. | Suitable only for ≤24 V systems; not rated for 48 V industrial bus protection. | Choose for cost-sensitive 12–24 V applications where 250 V margin is unnecessary. |
Compared with BAV23C-7-F and MMBD2836LT1G, the BAV23S-7 uniquely balances 250 V standoff, common-cathode topology, and industrial temperature range - making it optimal for 48 V power path management and high-reliability clamping where polarity and voltage margin are critical.
Availability
BAV23S-7 is available at Aetrix Electronics and suitable for DC-DC snubbers, battery backup selectors, logic-level clamping, and industrial I/O protection requiring stable component supply and long-term manufacturability.
Supply support for BAV23S-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, industry-qualified components for automotive, industrial, and computing markets.
The BAV23S-7 belongs to Diodes' high-voltage switching diode product line, engineered specifically for compact, robust protection and power-path control in space-constrained industrial and portable electronics.
FAQ
What is the pin configuration of BAV23S-7?
BAV23S-7 uses SOT23-3 package with Pin 1 = Anode 1, Pin 2 = Common Cathode, Pin 3 = Anode 2. This common-cathode arrangement is confirmed in Diodes' DS30042 Rev. 23-2 top-view diagram and electrical schematics, enabling dual-source OR-ing or bidirectional clamping when paired with external resistors.
Is BAV23S-7 suitable for automotive applications?
BAV23S-7 itself is not AEC-Q200 qualified; however, the automotive-grade variant BAV23SQ is explicitly qualified per AEC-Q200. Engineers designing for automotive must specify BAV23SQ-7-F or BAV23SQ-13-F to meet qualification requirements - BAV23S-7 is intended for industrial and commercial applications only.
How does BAV23S-7 differ from BAV23A-7-F?
BAV23A-7-F has a series-connected dual-diode configuration (anode–cathode–anode), whereas BAV23S-7 is common-cathode (anode–cathode–anode with shared cathode). This structural difference makes BAV23S-7 appropriate for power-path OR-ing, while BAV23A-7-F suits voltage-doubling or dual-series rectification topologies.
What is the maximum allowable junction temperature during continuous operation?
The BAV23S-7 has a specified operating junction temperature range of –55°C to +150°C. Under full 400 mA forward current, junction temperature rise is limited by its 357°C/W thermal resistance; sustained operation above +125°C requires derating per Figure 1 power derating curve, with 0 mW dissipation at +150°C ambient.
BAV23S-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 400mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 100 nA @ 200 V
- Operating Temperature - Junction:
- -65°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
BAV23S-7 FAQ
1.How can I place an order for BAV23S-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV23S-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 BAV23S-7 reliable?
The price and inventory of BAV23S-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV23S-7 is usually 5 days.
3.What payment methods are accepted for BAV23S-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV23S-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV23S-7?
BAV23S-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV23S-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 BAV23S-7?
For technical support, including BAV23S-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV23S-7 requirements.
6.How does Aetrix verify that BAV23S-7 is sourced from the original manufacturer or authorized distributors?
All BAV23S-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 BAV23S-7 meets industry standards.
7.What is the process for return or replacement of BAV23S-7?
All BAV23S-7 units undergo pre-shipment inspection (PSI). If there is an issue with BAV23S-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 BAV23S-7 part is unused and in its original packaging.
Return procedure for BAV23S-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV23S-7 Tags
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