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Nexperia USA Inc. BAT46WJF
- Part No.:
- BAT46WJF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BAT46WJF.pdf
- Description:
- DIODE SCHOTT 100V 250MA SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:9,765
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Product details
Overview
BAT46WJ from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, housed in an ultra-compact SOD323F (SC-90) surface-mount package. It delivers 100 V reverse voltage rating, 710–850 mV forward voltage at 250 mA, and 5.9 ns reverse recovery time - enabling high-speed switching in space-constrained DC/DC converters and USB power paths.
For engineers reviewing the BAT46WJ datasheet, BAT46WJ pinout, BAT46WJ application, or BAT46WJ equivalent, key selection criteria include low VF under pulsed 250 mA load, sub-4 µA IR at 75 V, 39 pF capacitance at 1 MHz, and thermal resistance of 310 K/W (junction-to-ambient, FR4 standard footprint).
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to enhance ruggedness against transient overvoltage and ESD stress. Its low forward voltage and fast trr stem from minimized minority-carrier storage and optimized metal-semiconductor junction design.
The device operates within -55 °C to 150 °C ambient range, supports reflow-only soldering, and achieves 2.5 A non-repetitive peak forward current with 10 ms pulse width - making it suitable for transient clamping and polarity protection where thermal mass is limited.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V - maximum blocking capability without breakdown in line termination or reverse polarity circuits |
| Forward Voltage (VF) | 710–850 mV at 250 mA - enables <1.2 W conduction loss in 5 V/3.3 V rail clamping applications |
| Reverse Current (IR) | 1–4 µA at 75 V - ensures minimal leakage in battery backup and always-on monitoring nodes |
| Reverse Recovery Time (trr) | 5.9 ns - supports >100 MHz switching in snubberless flyback and synchronous rectifier gate drive paths |
| Diode Capacitance (Cd) | 39 pF at VR = 0 V, 1 MHz - maintains signal integrity in high-speed data line clamping (e.g., RS-485, CAN FD) |
| Thermal Resistance (Rth(j-a)) | 310 K/W on FR4 PCB - limits junction temperature rise to ≤78 °C at 250 mA DC in standard layout |
| Package Dimensions | 1.7 mm × 1.25 mm × 0.7 mm - fits 0603-class footprints while delivering higher current than smaller Schottkys |
Pinout & Package
Encapsulated in the SOD323F (SC-90) plastic surface-mount package: 2-pin, ultra-flat profile (0.7 mm height), 1.7 mm × 1.25 mm body, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output node for clamping or rectification; marked by bar; connects to lower-potential side of circuit |
| 2 | Anode (A) | Input node for forward conduction; connects to higher-potential side (e.g., supply rail or signal source) |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Improves surge robustness against repetitive transients (e.g., IEC 61000-4-4) without external TVS stacking |
| Low forward voltage | Reduces conduction loss by ≥30% vs. comparable 100 V Si diodes - critical for efficiency in portable 5 V systems |
| Ultra-small SMD package | Enables placement adjacent to ICs in dense power management layouts (e.g., PMIC output rails, USB-C CC line protection) |
| Low capacitance | 39 pF allows use in >100 Mbps digital interfaces without signal edge degradation or timing skew |
| Pulsed current capability | 2.5 A IFSM supports short-duration inrush suppression in hot-swap controllers and eFuse circuits |
Applications
| USB Power Delivery Protection | Industrial Sensor Signal Clamping |
|---|---|
Use Scenario: Protecting CC and VCONN lines in USB-C receptacles from ±15 kV ESD and 12 V reverse insertion. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between signal line and ground or rail. Use Value: 5.9 ns trr prevents signal distortion during fast ESD events; 39 pF avoids bandwidth reduction in 5 Gbps USB3.2 Gen2 links. |
Use Scenario: Limiting analog sensor outputs (e.g., 4–20 mA loop transmitters) to safe ADC input ranges. IC Role / Device Role / Timing Role: Passive voltage clamp at front-end signal conditioning stage. Use Value: 710–850 mV VF ensures precise clamping threshold near 0 V; 1 µA IR avoids loading microamp-level sensor currents. |
| DC/DC Converter Output Rectification | Reverse Polarity Input Protection |
Use Scenario: Secondary-side rectification in isolated 5 V/1 A flyback converters for industrial IoT gateways. IC Role / Device Role / Timing Role: High-frequency freewheeling diode synchronized with MOSFET switching. Use Value: 100 V VR withstands reflected flyback spikes; 310 K/W Rth(j-a) enables operation at 65 °C ambient without heatsink. |
Use Scenario: Preventing damage when 12 V/24 V DC inputs are connected with reversed polarity in field-deployed equipment. IC Role / Device Role / Timing Role: Series-connected anode-to-load, cathode-to-input rail. Use Value: 250 mA IF(rated) supports continuous 1.5 W load; 2.5 A IFSM handles cold-start inrush without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSS40201MR6T1G | 60 V VR, 420 mV VF @ 10 mA, SOD-523 package (1.2 × 0.8 mm) | Lower voltage rating; better for 3.3 V systems only; smaller footprint but lower surge margin | Select when board space is tighter than 1.7 × 1.25 mm and VR ≤ 60 V suffices |
| Vishay VS-2EDH02HM3/85A | 100 V VR, 820 mV VF @ 250 mA, SOD-123FL package (2.9 × 1.9 mm) | Larger footprint; higher thermal mass (Rth(j-a) ≈ 200 K/W); rated for 1 A continuous | Select when higher continuous current (>250 mA) or improved thermal performance is required |
Compared with NSS40201MR6T1G, BAT46WJ offers +40 V headroom and guard-ring ruggedness for industrial transients; versus VS-2EDH02HM3/85A, it saves 60% board area while maintaining identical VR and acceptable VF trade-off for pulsed loads.
Availability
BAT46WJ is available at Aetrix Electronics and suitable for USB-C interface protection, industrial sensor signal conditioning, and reverse polarity input circuits requiring stable component supply across production volumes from prototype to volume manufacturing.
Supply support for BAT46WJ 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 essential system functionality - delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
BAT46WJ belongs to Nexperia's general-purpose Schottky diode product line, engineered for high-speed, low-loss protection and rectification in compact, thermally constrained applications such as portable electronics and industrial control modules.
FAQ
Is BAT46WJ suitable for automotive applications?
No. BAT46WJ is explicitly designated as non-automotive qualified per Nexperia's revision history (v.3, October 2022). It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond 150 °C junction. For automotive use, select Nexperia's BAT46WJ-Q series or equivalent AEC-Q101 Schottky diodes.
What is the recommended soldering method for BAT46WJ?
Reflow soldering is the only recommended method, per Nexperia's thermal and reliability guidelines. Wave soldering and hand soldering are not supported due to thermal stress risks on the SOD323F package. The datasheet specifies a standard reflow profile with peak temperature ≤260 °C and dwell time ≤30 seconds.
Does BAT46WJ have polarity marking, and how is it identified?
Yes. The cathode is marked by a visible bar on the top surface of the SOD323F package. Pin 1 (cathode) is located at the bar end; Pin 2 (anode) is at the opposite end. This matches the simplified outline in Table 2 and is confirmed in the marking code table (JK marking corresponds to BAT46WJ).
How does the guard ring improve reliability in BAT46WJ?
The integrated guard ring reduces electric field crowding at the silicon edge, raising the effective breakdown voltage under transient conditions. This improves immunity to repetitive ESD (IEC 61000-4-2) and surge events (IEC 61000-4-4), extending operational life in unregulated industrial environments without requiring additional external protection components.
BAT46WJF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 250mA
- Voltage - Forward (Vf) (Max) @ If:
- 850 mV @ 250 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5.9 ns
- Current - Reverse Leakage @ Vr:
- 9 µA @ 100 V
- Capacitance @ Vr, F:
- 21pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- 150°C (Max)
BAT46WJF FAQ
1.How can I place an order for BAT46WJF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46WJF 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 BAT46WJF reliable?
The price and inventory of BAT46WJF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46WJF is usually 5 days.
3.What payment methods are accepted for BAT46WJF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46WJF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46WJF?
BAT46WJF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46WJF 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 BAT46WJF?
For technical support, including BAT46WJF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46WJF requirements.
6.How does Aetrix verify that BAT46WJF is sourced from the original manufacturer or authorized distributors?
All BAT46WJF 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 BAT46WJF meets industry standards.
7.What is the process for return or replacement of BAT46WJF?
All BAT46WJF units undergo pre-shipment inspection (PSI). If there is an issue with BAT46WJF, 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 BAT46WJF part is unused and in its original packaging.
Return procedure for BAT46WJF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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