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Nexperia USA Inc. BAT46WJ,115
- Part No.:
- BAT46WJ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BAT46WJ,115.pdf
- Description:
- DIODE SCHOTT 100V 250MA SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:868,885
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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, <4 µA reverse leakage at 75 V, 5.9 ns reverse recovery time, and 39 pF capacitance at 1 MHz - enabling high-speed switching in space-constrained power rail clamping and polarity protection circuits.
For engineers reviewing the BAT46WJ datasheet, BAT46WJ pinout, BAT46WJ application, or BAT46WJ equivalent, this device is selected for low-loss, fast-switching roles where compact size, thermal robustness on FR4 PCBs, and stable performance across -40 °C to 150 °C junction temperature are critical design requirements.
Technical Context
The BAT46WJ employs a planar Schottky structure with an integrated guard ring to suppress edge breakdown and improve ruggedness under transient stress. Its low VF and fast trr stem from optimized metal–semiconductor interface and shallow junction depth, supporting efficient unidirectional conduction in pulsed and DC-biased applications.
Thermal performance is defined for two mounting conditions: standard SOD323F footprint (Rth(j-a) = 310 K/W) and enhanced cathode pad (1 cm², Rth(j-sp) = 35 K/W), enabling accurate thermal design in both minimal and thermally optimized layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V - supports input rail clamping up to industrial 72 V DC systems with margin. |
| Forward Voltage (VF) | 710–850 mV @ 250 mA - minimizes conduction loss in low-voltage, high-current paths. |
| Reverse Leakage (IR) | 1–4 µA @ 75 V - ensures low standby power in always-on polarity protection circuits. |
| Reverse Recovery Time (trr) | 5.9 ns - enables clean switching in >100 MHz signal line termination and flyback snubbing. |
| Capacitance (Cd) | 39 pF @ 0 V, 1 MHz - preserves signal integrity in high-speed data line clamping without excessive loading. |
| Junction Temperature (Tj) | 150 °C max - allows operation in sealed enclosures or near heat sources without derating. |
| Package | SOD323F (SC-90), 1.7 × 1.25 × 0.7 mm - fits 0402-class board area with standardized reflow footprint. |
Pinout & Package
Encapsulated in the SOD323F (SC-90) plastic SMD package: ultra-flat, 2-lead, 1.7 mm × 1.25 mm × 0.7 mm body height, with cathode marked by a bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Output/return node; marking bar identifies this terminal; connects to lower-potential side of circuit. |
| 2 | Anode (A) | Input/source node; connects to higher-potential side; current flows from A to K under forward bias. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Prevents premature edge breakdown under voltage transients, improving reliability in noisy industrial environments. |
| Low forward voltage | 710 mV typical at 250 mA reduces power dissipation by >30% vs. standard silicon diodes in same package. |
| Ultra-small SMD package | SOD323F footprint saves >50% board area vs. SOD123, critical for wearable and IoT sensor modules. |
| Low capacitance | 39 pF at 0 V enables use in USB 2.0 and CAN FD data line ESD clamping without signal distortion. |
| Pulsed current capability | 2.5 A non-repetitive peak supports surge suppression in hot-swap and load-switch circuits. |
Applications
| High-Speed Switching | Line Termination |
|---|---|
|
Use Scenario: Fast-switching DC-DC converter synchronous rectification and freewheeling paths. IC Role / Device Role: Low-loss unidirectional current path replacing conventional silicon diodes. Use Value: 5.9 ns trr and 710 mV VF reduce switching losses and thermal rise in 1–3 MHz buck converters. |
Use Scenario: RS-485, CAN, and LVDS bus line termination with ESD resilience. IC Role / Device Role: Bidirectional clamping diode pair (with complementary device) referenced to VCC/GND. Use Value: 39 pF capacitance and sub-1 V VF preserve signal edge integrity while limiting overshoot to <±1.5 V. |
| Voltage Clamping | Reverse Polarity Protection |
|
Use Scenario: Input rail overvoltage suppression in 12–48 V industrial power supplies. IC Role / Device Role: Shunt clamp between supply and ground during transient events (e.g., load dump). Use Value: 100 V VR rating with guard ring withstands 80 V sustained clamping without degradation. |
Use Scenario: Battery-powered equipment (e.g., handheld meters, sensors) with barrel-jack inputs. IC Role / Device Role: Series-connected anode-to-input, cathode-to-load for blocking reverse connection. Use Value: 710 mV VF adds only 0.71 V drop at 250 mA, preserving >94% of 3.3 V or 5 V system headroom. |
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 | Same SOD-323F package; 40 V VR, 420 mV VF @ 200 mA - lower voltage, lower loss. | Not suitable for 75+ V clamping; better for 3.3/5 V rail protection only. | Select when system max voltage ≤ 40 V and lowest possible VF is prioritized. |
| Vishay VS-2EDH02HM3/85A | SOD-123 package; 100 V VR, 820 mV VF @ 250 mA, 50 pF - larger footprint, higher capacitance. | Less suitable for ultra-dense layouts; acceptable where board area permits. | Choose if existing layout uses SOD-123 footprints and thermal margin exceeds 310 K/W. |
Compared with BAT46WJ, the NSS40201MR6T1G trades voltage headroom for lower conduction loss in low-voltage systems, while the VS-2EDH02HM3/85A offers identical voltage rating but sacrifices board density and high-frequency response due to larger package and higher Cd.
Availability
BAT46WJ is available at Aetrix Electronics and suitable for high-speed switching, line termination, voltage clamping, and reverse polarity protection requiring stable component supply across industrial control, IoT edge nodes, 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 focused on high-volume, high-reliability discrete and logic devices, with leadership in automotive-qualified and industrial-grade components.
The BAT46WJ belongs to Nexperia's general-purpose Schottky diode product line, engineered for cost-sensitive, space-constrained applications demanding fast switching, low forward drop, and robust transient handling on standard FR4 PCBs.
FAQ
What is the maximum continuous forward current for BAT46WJ?
The BAT46WJ is rated for 250 mA DC forward current under standard mounting conditions (FR4 PCB, single-sided copper, 25 °C ambient). Derating applies above 25 °C: at 75 °C ambient, maximum IF(AV) drops to ~150 mA for standard footprint, or ~220 mA with 1 cm² cathode pad per datasheet Fig. 7 and Fig. 8.
Is BAT46WJ suitable for automotive applications?
No. Per Nexperia's revision history (Table 8), BAT46WJ was explicitly changed to non-automotive status in v.3 (2022). It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond 150 °C junction. Automotive designs require -Q variants such as BAT46WJ-Q.
How does the guard ring improve reliability?
The integrated guard ring redistributes electric field at the diode periphery, suppressing edge-initiated avalanche breakdown during voltage transients. This increases the effective VR margin and extends lifetime under repetitive surge stress, especially in industrial power supplies exposed to load dump or inductive kick.
What soldering method is recommended for BAT46WJ?
Reflow soldering is the only recommended method per datasheet Section 13 and Table 5 footnote [2]. Wave or hand soldering is not qualified. The device requires adherence to JEDEC J-STD-020 moisture sensitivity level (MSL) 1 profile, with peak reflow temperature ≤ 260 °C and dwell time within specification limits for SOD323F packages.
BAT46WJ,115 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:
- 39pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323F
- Operating Temperature - Junction:
- 150°C (Max)
BAT46WJ,115 FAQ
1.How can I place an order for BAT46WJ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46WJ,115 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,115 reliable?
The price and inventory of BAT46WJ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46WJ,115 is usually 5 days.
3.What payment methods are accepted for BAT46WJ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46WJ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46WJ,115?
BAT46WJ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46WJ,115 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,115?
For technical support, including BAT46WJ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46WJ,115 requirements.
6.How does Aetrix verify that BAT46WJ,115 is sourced from the original manufacturer or authorized distributors?
All BAT46WJ,115 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,115 meets industry standards.
7.What is the process for return or replacement of BAT46WJ,115?
All BAT46WJ,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT46WJ,115, 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,115 part is unused and in its original packaging.
Return procedure for BAT46WJ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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