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Nexperia USA Inc. BAT46WJ/ZLF
- Part No.:
- BAT46WJ/ZLF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BAT46WJ/ZLF.pdf
- Description:
- DIODE SCHOTT 100V 250MA SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:4,771
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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 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 compact power management and signal conditioning circuits.
For engineers reviewing the BAT46WJ datasheet, BAT46WJ pinout, BAT46WJ application, or BAT46WJ equivalent, this diode is selected for low-loss clamping, reverse polarity protection, and line termination where low capacitance (39 pF @ 1 MHz), fast recovery, and thermal robustness on FR4 PCBs are critical design requirements.
Technical Context
The BAT46WJ employs a planar Schottky junction architecture with an integrated guard ring to enhance ruggedness against transient overvoltage and electrostatic stress. Its low forward voltage drop stems from optimized metal-semiconductor interface design, while the SC-90 package enables minimal board space usage without compromising thermal performance.
Reverse recovery behavior is characterized by a typical trr of 5.9 ns under IF = 10 mA / IR = 10 mA conditions, confirming suitability for >100 MHz switching applications. Diode capacitance remains stable at 39 pF (VR = 0 V, f = 1 MHz), supporting consistent high-frequency impedance matching in RF and digital interface paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 100 V - Maximum DC or repetitive peak reverse voltage before breakdown; defines safe operating range in clamping and polarity protection circuits. |
| VF (Forward Voltage) | 710–850 mV @ 250 mA - Low conduction loss ensures minimal power dissipation in high-current pulsed switching paths. |
| trr (Reverse Recovery Time) | 5.9 ns - Enables clean turn-off in high-frequency (>100 MHz) switching nodes with minimal switching loss and ringing. |
| IR (Reverse Current) | 1–4 µA @ VR = 75 V - Low leakage preserves signal integrity in high-impedance bias and sensing networks. |
| Cd (Diode Capacitance) | 39 pF @ VR = 0 V, 1 MHz - Supports stable high-speed signal routing without capacitive loading distortion. |
| Rth(j-a) (Thermal Resistance) | 310 K/W - Defines junction-to-ambient temperature rise on standard FR4 PCB; informs derating for continuous operation. |
Pinout & Package
The BAT46WJ is packaged in the SOD323F (SC-90) surface-mount plastic case: 1.7 mm × 1.25 mm × 0.7 mm body, flat leads, cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to circuit ground or lower-potential node; marking bar identifies this terminal for correct orientation during placement. |
| 2 | Anode (A) | Connected to input or higher-potential source; current flows from A to K when forward-biased. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Enhances ESD and transient voltage immunity without external protection components, improving system-level reliability. |
| Low VF at high IF | 710 mV typ. @ 250 mA enables efficient power path control in battery-powered and portable devices. |
| Ultra-small SMD footprint | SOD323F package occupies <1.5 mm² board area-ideal for space-constrained USB, sensor, and wearables PCB layouts. |
| Low Cd and fast trr | 39 pF capacitance + 5.9 ns recovery supports clean signal edge integrity in high-speed data lines and RF front-ends. |
Applications
| High-Speed Switching | Line Termination |
|---|---|
|
Use Scenario: Fast-switching DC-DC converter synchronous rectification and flyback snubber paths. IC Role / Device Role / Timing Role: Schottky diode used as low-loss freewheeling path during MOSFET off-time. Use Value: 5.9 ns trr and 710 mV VF minimize switching losses and improve efficiency above 500 kHz operating frequencies. |
Use Scenario: RS-485/USB data line termination to suppress reflections and overshoot. IC Role / Device Role / Timing Role: Passive clamp diode placed between signal and VCC/GND rails to limit voltage excursions. Use Value: 39 pF capacitance avoids signal degradation at >100 Mbps data rates; 100 V VR withstands common-mode surges. |
| Voltage Clamping | Reverse Polarity Protection |
|
Use Scenario: Input rail protection in industrial sensors and IoT edge nodes exposed to inductive kickback. IC Role / Device Role / Timing Role: Shunt diode across supply inputs to clamp transients below IC absolute maximum ratings. Use Value: Guard ring structure sustains repeated 100 V reverse stress without parameter drift; low IR prevents standby drain. |
Use Scenario: Battery input protection in portable medical monitors and handheld test equipment. IC Role / Device Role / Timing Role: Series-connected Schottky diode blocking reverse current when battery is inserted backward. Use Value: 710 mV VF limits voltage drop to <0.85 V at 250 mA, preserving >96% of nominal supply voltage under load. |
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 NSR0230HT1G | Lower VR (30 V), smaller VF (270 mV @ 100 mA), same SOD-323 package. | Not suitable for 75+ V clamping; better for low-voltage logic rail protection only. | Select only if system max reverse voltage ≤30 V and ultra-low VF dominates design priority. |
| Vishay VS-2EDH02HM3/85A | Higher VR (200 V), larger SOD-123 package (2.8 × 1.7 mm), VF = 550 mV @ 200 mA. | Requires more PCB area; superior for 100–200 V industrial transients but less space-efficient. | Choose when 100+ V surge margin is mandatory and board space permits larger footprint. |
Compared with NSR0230HT1G and VS-2EDH02HM3/85A, the BAT46WJ uniquely balances 100 V capability, sub-1 V forward drop, and ultra-compact SOD323F packaging-making it optimal for space-constrained 5–24 V systems requiring both clamping headroom and minimal conduction loss.
Availability
BAT46WJ is available at Aetrix Electronics and suitable for high-speed switching, reverse polarity protection, and voltage clamping applications requiring stable component supply across consumer electronics, industrial sensors, and portable instrumentation designs.
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 specializing in high-performance, reliable discrete, logic, and MOSFET solutions, headquartered in Nijmegen, Netherlands.
The BAT46WJ belongs to Nexperia's Schottky diode product line, engineered for high-efficiency, high-reliability signal and power path protection in compact, cost-sensitive electronic systems.
FAQ
What is the maximum continuous forward current rating for BAT46WJ?
The BAT46WJ has a maximum continuous forward current (IF) of 250 mA at Tamb ≤ 25 °C on a standard FR4 PCB. Derating is required above ambient temperatures-e.g., ~180 mA at 85 °C ambient per Figure 7 in the datasheet. This rating assumes reflow soldering and standard footprint layout.
Is BAT46WJ suitable for automotive applications?
No. The BAT46WJ is explicitly designated as non-automotive qualified in its revision history (v.3, October 2022). It lacks AEC-Q101 qualification, automotive-grade testing, and extended temperature validation beyond 150 °C junction. Automotive designs require Nexperia's -Q qualified equivalents such as BAT46WJ-Q.
How does the guard ring improve reliability in BAT46WJ?
The integrated guard ring mitigates electric field crowding at the Schottky junction edge, raising the effective breakdown voltage and enhancing resistance to ESD events and repetitive voltage transients. This allows sustained operation under real-world stress conditions without parameter shift or premature failure.
What is the recommended soldering method for BAT46WJ?
Reflow soldering is the only recommended method per Nexperia's datasheet. Wave or hand soldering is not advised due to thermal sensitivity. The device requires precise profile adherence: peak temperature ≤260 °C, time above 217 °C ≤60 seconds, and preheat ramp rate ≤3 °C/s to avoid delamination or junction damage.
BAT46WJ/ZLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-90, SOD-323F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 39pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- 150°C (Max)
BAT46WJ/ZLF FAQ
1.How can I place an order for BAT46WJ/ZLF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46WJ/ZLF 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 BAT46WJ/ZLF reliable?
The price and inventory of BAT46WJ/ZLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46WJ/ZLF is usually 5 days.
3.What payment methods are accepted for BAT46WJ/ZLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46WJ/ZLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46WJ/ZLF?
BAT46WJ/ZLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46WJ/ZLF 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 BAT46WJ/ZLF?
For technical support, including BAT46WJ/ZLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46WJ/ZLF requirements.
6.How does Aetrix verify that BAT46WJ/ZLF is sourced from the original manufacturer or authorized distributors?
All BAT46WJ/ZLF 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 BAT46WJ/ZLF meets industry standards.
7.What is the process for return or replacement of BAT46WJ/ZLF?
All BAT46WJ/ZLF units undergo pre-shipment inspection (PSI). If there is an issue with BAT46WJ/ZLF, 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 BAT46WJ/ZLF part is unused and in its original packaging.
Return procedure for BAT46WJ/ZLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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