My Inquiry
My Account
Nexperia USA Inc. BAT721C,215
- Part No.:
- BAT721C,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
BAT721C,215.pdf
- Description:
- DIODE ARR SCHOTTKY 40V TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:20,432
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
BAT721C,215 from Nexperia is a dual Schottky barrier diode in SOT23 package, rated for 40 V reverse voltage and 200 mA forward current per diode, with low 550 mV forward voltage at 200 mA and 40 pF typical capacitance at 0 V - used for ultra-high-speed switching and reverse polarity protection in portable power rails.
For engineers reviewing the BAT721C,215 datasheet, BAT721C,215 pinout, BAT721C,215 application, or BAT721C,215 equivalent, key selection criteria include common-cathode dual-diode topology, SOT23 footprint compatibility, low VF/low Cd trade-off, and non-automotive qualification status per revision history.
Technical Context
The BAT721C,215 integrates two independent Schottky diodes sharing a common cathode (Pin 3), enabling compact dual-path clamping or polarity protection without discrete pairing. Its planar structure includes a guard ring for ESD and transient stress protection.
It operates across –65 °C to 150 °C ambient, with thermal resistance of 500 K/W (junction-to-ambient, FR4 PCB), and exhibits temperature-dependent forward voltage drop (300 mV at 10 mA, 550 mV at 200 mA, all at 25 °C) and reverse leakage (15 µA at 30 V/25 °C, rising to 3 mA at 100 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40 V - maximum blocking voltage per diode; sets upper limit for clamping or termination in 3.3 V/5 V/12 V systems |
| IF (Forward Current) | 200 mA per diode - continuous DC rating; supports moderate-power rail steering or protection |
| VF (Forward Voltage) | 550 mV at 200 mA - enables low-loss rectification and minimal voltage drop in polarity protection paths |
| Cd (Capacitance) | 40 pF typical at 0 V - ensures minimal signal distortion in high-speed line termination up to ~100 MHz |
| IR (Reverse Leakage) | 15 µA at 30 V / 25 °C - low leakage preserves battery life in always-on reverse-polarity circuits |
| Rth(j-a) | 500 K/W - requires thermal-aware PCB layout (e.g., copper pour on cathode pad) for sustained 200 mA operation |
Pinout & Package
Encapsulated in a standard SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm pin pitch), the BAT721C,215 uses a 3-terminal configuration with anode–anode–common-cathode arrangement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 (Anode Diode 1) | Input node for first Schottky path; connects to supply or signal source requiring clamping or steering |
| 2 | A2 (Anode Diode 2) | Independent input node for second Schottky path; enables dual-rail or redundant protection |
| 3 | K1/K2 (Common Cathode) | Shared output node; ties both diodes to system ground or regulated rail - simplifies routing and reduces component count |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 550 mV @ 200 mA - minimizes conduction loss and self-heating in battery-powered load-switching |
| Low junction capacitance | 40 pF @ 0 V - preserves signal integrity in USB, I²C, or GPIO line termination |
| Integrated guard ring | Enhanced ESD robustness per IEC 61000-4-2 - reduces need for external TVS in space-constrained designs |
| Common-cathode dual configuration | SOT23-3 footprint - eliminates need for two separate diodes and saves >30% board area vs discrete solution |
Applications
| USB Power Input Protection | LVDS Line Termination |
|---|---|
Use Scenario: Protecting microcontroller USB VBUS input from accidental reverse connection or hot-swap transients. IC Role / Device Role / Timing Role: Dual-anode Schottky clamp directing correct polarity to downstream LDO while blocking reverse current. Use Value: Prevents damage without adding series resistance or voltage drop beyond 550 mV - maintains USB 2.0 compliance. | Use Scenario: Terminating differential pairs in industrial sensor interfaces operating at 100–600 Mbps. IC Role / Device Role / Timing Role: Low-capacitance Schottky pair providing DC bias and AC coupling control at receiver inputs. Use Value: 40 pF capacitance avoids signal edge degradation; common-cathode layout simplifies symmetric termination design. |
| Backup Battery Switchover | Industrial I/O Protection |
Use Scenario: Seamless transition between main supply and coin-cell backup in real-time clock circuits. IC Role / Device Role / Timing Role: OR-ing diode pair enabling automatic path selection based on voltage priority. Use Value: 200 mA rating supports RTC + SRAM retention; low VF ensures minimal voltage sag during switchover. | Use Scenario: Protecting PLC digital input channels from field-wiring polarity errors or induced surges. IC Role / Device Role / Timing Role: Reverse-polarity clamp shunting miswired 24 V DC to common ground before reaching input buffer. Use Value: 40 V VR withstands industrial transients; guard ring improves immunity to repetitive ESD events on factory floor. |
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 | Same SOT23-3 package; 40 V VR, 200 mA IF, but VF = 520 mV @ 200 mA (slightly lower); no guard ring specified | Higher ESD sensitivity in uncontrolled environments; suitable where layout-level protection exists | Select when lower VF is prioritized and board-level ESD mitigation is already implemented |
| Diodes Incorporated SDM20U40CP-7 | SOT23-3, 40 V VR, 200 mA IF, VF = 540 mV @ 200 mA; specified for AEC-Q200 automotive qualification | Automotive-qualified but higher cost; over-spec'd for commercial/industrial use unless automotive compliance required | Choose only if AEC-Q200 certification is mandatory; otherwise BAT721C,215 offers better cost/performance balance |
Compared with NSR20F40NXT5G and SDM20U40CP-7, the BAT721C,215 uniquely combines guard-ring ESD hardening, industry-standard SOT23 footprint, and non-automotive cost optimization - making it ideal for consumer, computing, and industrial embedded systems where reliability and layout simplicity are balanced against qualification overhead.
Availability
BAT721C,215 is available at Aetrix Electronics and suitable for USB power management, LVDS interface termination, and industrial I/O protection requiring stable component supply and consistent SOT23 assembly compatibility.
Supply support for BAT721C,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 leading semiconductor manufacturer specializing in high-volume logic, analog, and discrete components, headquartered in Nijmegen, Netherlands, with global manufacturing and R&D operations.
The BAT721C,215 belongs to Nexperia's Schottky diode portfolio designed for space-constrained, high-efficiency power and signal path protection - emphasizing low VF, low Cd, and robust SMT manufacturability in commercial-grade applications.
FAQ
Is BAT721C,215 qualified for automotive applications?
No. Per the 2024 revision history, BAT721C,215 was explicitly changed to non-automotive qualification. It is not tested to AEC-Q101 or AEC-Q200 standards. For automotive use, Nexperia offers the BAT721B-Q series - which shares electrical specs but includes full automotive qualification and traceability.
What is the thermal derating behavior above 25 °C ambient?
At 85 °C ambient, the maximum continuous forward current drops to approximately 130 mA due to junction temperature limits (Tj ≤ 125 °C) and Rth(j-a) = 500 K/W. Derating follows linear interpolation: IF(max) = 200 mA × (1 − (Tamb − 25)/100), assuming no PCB copper enhancement.
Can BAT721C,215 be used in place of a single Schottky diode?
Yes - by connecting Pin 1 (A1) and Pin 2 (A2) together as a single anode input and using Pin 3 (K1/K2) as cathode output. This retains full 200 mA per-diode rating but does not increase total current handling beyond 200 mA due to shared thermal path and internal die layout.
Does the "L9%" marking code indicate RoHS compliance?
Yes. The "L9%" top-side marking on BAT721C,215 denotes Nexperia's standard RoHS-compliant, halogen-free, lead-free finish per JEDEC J-STD-609. The "%" placeholder indicates manufacturing site code (e.g., L9A = Nijmegen, L9B = Bangkok), and all variants meet EU RoHS Directive 2011/65/EU and REACH SVHC requirements.
BAT721C,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 Cathode
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
BAT721C,215 FAQ
1.How can I place an order for BAT721C,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT721C,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 BAT721C,215 reliable?
The price and inventory of BAT721C,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT721C,215 is usually 5 days.
3.What payment methods are accepted for BAT721C,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT721C,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT721C,215?
BAT721C,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT721C,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 BAT721C,215?
For technical support, including BAT721C,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT721C,215 requirements.
6.How does Aetrix verify that BAT721C,215 is sourced from the original manufacturer or authorized distributors?
All BAT721C,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 BAT721C,215 meets industry standards.
7.What is the process for return or replacement of BAT721C,215?
All BAT721C,215 units undergo pre-shipment inspection (PSI). If there is an issue with BAT721C,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 BAT721C,215 part is unused and in its original packaging.
Return procedure for BAT721C,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT721C,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
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
