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Nexperia USA Inc. BAT721A,215
- Part No.:
- BAT721A,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT721A,215.pdf
- Description:
- DIODE ARR SCHOTTKY 40V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,785
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Product details
Overview
BAT721A,215 from Nexperia is a dual Schottky barrier diode in SOT23 package with common anode configuration, rated for 40 V reverse voltage and 200 mA forward current per diode, featuring low 550 mV forward voltage at 200 mA and 40 pF typical capacitance - used for ultra-high-speed switching and reverse polarity protection in portable power management circuits.
For engineers reviewing the BAT721A,215 datasheet, BAT721A,215 pinout, BAT721A,215 application, or BAT721A,215 equivalent, key selection criteria include common-anode dual-diode topology, 550 mV VF at 200 mA, 40 V VR rating, 40 pF junction capacitance, and SOT23 thermal resistance of 500 K/W in free air - critical for compact DC-DC output rectification and I/O line clamping.
Technical Context
This dual Schottky diode integrates two independent junctions sharing a common anode (Pin 3), enabling bidirectional clamping or dual-path rectification in space-constrained layouts. Its planar structure includes a guard ring for ESD and transient stress protection.
Designed for high-frequency operation, it delivers 15 µA reverse leakage at 30 V/25 °C and maintains stable VF across -40 °C to 125 °C ambient, with thermal runaway considerations addressed via Rth(j-a) = 500 K/W and junction temperature limit of 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - defines maximum allowable blocking voltage before breakdown in clamping or reverse protection roles |
| IF (Forward Current) | 200 mA per diode - supports continuous low-power rectification or signal path current handling |
| VF (Forward Voltage) | 550 mV at 200 mA - minimizes conduction loss in battery-fed circuits and improves efficiency |
| IR (Reverse Current) | 15 µA at 30 V / 25 °C - ensures low standby leakage in always-on voltage clamp applications |
| Cd (Diode Capacitance) | 40 pF at 0 V / 1 MHz - enables clean high-speed switching up to ~100 MHz without excessive signal distortion |
| Rth(j-a) | 500 K/W - limits junction-to-ambient temperature rise to ~100 K at 200 mW dissipation in free air |
Pinout & Package
Encapsulated in SOT23 (TO-236AB) package: 3-terminal surface-mount plastic case measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch and standard FR4 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode, Diode 1) | Output node for first Schottky junction; connects to load or signal line requiring clamping |
| 2 | K2 (Cathode, Diode 2) | Independent output node for second junction; enables dual-rail or differential clamping |
| 3 | A1,A2 (Common Anode) | Shared input terminal - simplifies PCB routing in common-source protection or dual-rectifier topologies |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 550 mV at 200 mA - reduces power loss by >30% vs. standard silicon diodes in 3.3 V systems |
| Low junction capacitance | 40 pF - preserves signal integrity in USB 2.0 and I²C bus termination applications |
| Integrated guard ring | Enhances ESD robustness to >8 kV HBM - eliminates need for external TVS in many portable designs |
| Common-anode dual configuration | Single-package dual-path clamping - saves board area versus discrete diode pairs |
Applications
| USB Data Line Clamping | Portable Device Reverse Polarity Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 peripherals from ESD and overvoltage transients. IC Role / Device Role / Timing Role: Dual cathode clamping diode with common anode tied to VBUS, diverting surge current away from PHY IC pins. Use Value: 40 pF capacitance avoids signal edge degradation; 550 mV VF ensures minimal voltage drop during normal operation. |
Use Scenario: Preventing damage when a user inserts a barrel-jack power adapter backward into a battery-powered device. IC Role / Device Role / Timing Role: Common-anode dual diode placed between input connector and system rail, conducting only when polarity is correct. Use Value: Low 550 mV forward drop preserves >95% of supply voltage under 200 mA load, minimizing brownout risk. |
| High-Speed Logic Line Termination | Low-Power DC-DC Output Rectification |
Use Scenario: Terminating LVDS or CMOS clock distribution lines to suppress ringing and overshoot. IC Role / Device Role / Timing Role: Bidirectional clamping element limiting swing to VCC ±0.55 V using dual cathodes referenced to VCC and GND rails. Use Value: 15 µA reverse leakage prevents DC loading on sensitive logic nodes; fast recovery avoids timing skew. |
Use Scenario: Rectifying output of 1 MHz buck converter in wearable electronics where size and efficiency are critical. IC Role / Device Role / Timing Role: Dual-path synchronous rectifier replacement, with each diode handling half-cycle conduction in interleaved topology. Use Value: 200 mA per diode rating supports up to 400 mA total output; 500 K/W Rth(j-a) allows passive cooling in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR20F40NXT5G | Higher IF = 2 A, VF = 450 mV @ 1 A, but larger SOD-123FL package and no common-anode pinout | Not suitable for space-constrained dual-clamp layouts; better for single high-current rectification | Select when peak current exceeds 200 mA and board area permits larger footprint |
| Vishay VS-2EDH01HM3/85A | Same SOT23-3 package and common-anode topology, but VF = 600 mV @ 200 mA and VR = 30 V | Lower reverse voltage margin limits use in 3.3 V–5 V systems with high transient exposure | Choose only if 30 V VR suffices and higher VF is acceptable for reduced cost |
Compared with NSR20F40NXT5G and VS-2EDH01HM3/85A, BAT721A,215 uniquely balances 40 V VR, 550 mV VF, 40 pF Cd, and SOT23 common-anode layout - making it optimal for dual-rail clamping in miniaturized USB, sensor, and wearables designs where thermal and capacitive constraints dominate.
Availability
BAT721A,215 is available at Aetrix Electronics and suitable for USB interface protection, portable device power input staging, and high-speed logic termination requiring stable component supply and consistent SOT23 packaging.
Supply support for BAT721A,215 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, headquartered in Nijmegen, Netherlands, with manufacturing in Asia and Europe.
BAT721A,215 belongs to Nexperia's Schottky diode portfolio designed specifically for low-loss, high-speed protection and rectification in consumer, computing, and communications equipment - emphasizing small-signal performance and SMT manufacturability.
FAQ
What is the maximum junction temperature for BAT721A,215?
The absolute maximum junction temperature is 125 °C, as defined in the Absolute Maximum Ratings table. Operation above this temperature risks permanent parametric shift or failure. Derating is required above 25 °C ambient based on Rth(j-a) = 500 K/W and actual power dissipation.
Is BAT721A,215 automotive qualified?
No. Per Nexperia's revision history and legal disclaimers, BAT721A,215 is explicitly marked as non-automotive qualified. It has not undergone AEC-Q101 testing or qualification for automotive environments. Automotive alternatives must be selected from Nexperia's -Q series parts.
Can BAT721A,215 replace BAT54 series diodes?
Yes, with functional equivalence in common-anode configuration and similar electrical specs (BAT54A also uses SOT23 and common-anode pinout), but BAT721A,215 offers lower VF (550 mV vs. ~600 mV) and tighter IR control (15 µA vs. ~25 µA at 30 V), improving efficiency in low-voltage rails.
What is the marking code for BAT721A,215 on the device body?
The top-side marking is "L8%", where "%" is a placeholder for the manufacturing site code. This matches Table 4 in the datasheet and is verified on physical units distributed by Nexperia-authorized channels including Digi-Key and Mouser.
BAT721A,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Anode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 200 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 15 µA @ 30 V
- Operating Temperature - Junction:
- 125°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BAT721A,215 FAQ
1.How can I place an order for BAT721A,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT721A,215 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 BAT721A,215 reliable?
The price and inventory of BAT721A,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT721A,215 is usually 5 days.
3.What payment methods are accepted for BAT721A,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT721A,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT721A,215?
BAT721A,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT721A,215 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 BAT721A,215?
For technical support, including BAT721A,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT721A,215 requirements.
6.How does Aetrix verify that BAT721A,215 is sourced from the original manufacturer or authorized distributors?
All BAT721A,215 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 BAT721A,215 meets industry standards.
7.What is the process for return or replacement of BAT721A,215?
All BAT721A,215 units undergo pre-shipment inspection (PSI). If there is an issue with BAT721A,215, 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 BAT721A,215 part is unused and in its original packaging.
Return procedure for BAT721A,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT721A,215 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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