My Inquiry
My Account
Nexperia USA Inc. BAT46WJ/ZLX
- Part No.:
- BAT46WJ/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
BAT46WJ/ZLX.pdf
- Description:
- DIODE SCHOTT 100V 250MA SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:8,438
Please send an inquiry. Send us your inquiry, and we will respond immediately.
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 line protection 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 fast line termination where space-constrained PCB layouts demand sub-2 mm² footprints and <1 V conduction loss at moderate currents.
Technical Context
The BAT46WJ employs a planar Schottky junction architecture with an integrated guard ring to suppress edge breakdown under transient overvoltage stress. Its low capacitance (39 pF at 0 V, 21 pF at 1 V) and nanosecond-scale trr support operation up to ~100 MHz in RF and digital signal path applications.
Thermal performance is defined by two mounting configurations: Rth(j-a) = 310 K/W on standard FR4 and 175 K/W with a 1 cm² cathode pad, enabling reliable 250 mA DC operation up to 75 °C ambient when properly laid out. The device is rated for 150 °C junction temperature and reflow-only soldering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V - supports input rail clamping and reverse polarity protection in 24 V and 48 V industrial systems without breakdown. |
| Forward Voltage (VF) | 710–850 mV @ 250 mA - minimizes conduction loss and self-heating in always-on protection paths. |
| Reverse Recovery Time (trr) | 5.9 ns - enables clean switching in >10 MHz clock lines and high-frequency data bus termination. |
| Diode Capacitance (Cd) | 39 pF @ 0 V - preserves signal integrity in USB 2.0, I²C, and CAN FD stubs with minimal loading. |
| Reverse Current (IR) | 1–4 µA @ 75 V - ensures low leakage in battery-backed or energy-harvesting circuits over temperature. |
| Package Dimensions | 1.7 × 1.25 × 0.7 mm - fits 0603-class board space while maintaining thermal pad compatibility for enhanced power handling. |
Pinout & Package
The BAT46WJ is packaged in the SOD323F (SC-90) plastic surface-mount case: ultra-flat, 2-terminal, 1.7 mm × 1.25 mm body with 0.7 mm max height and standardized reflow footprint per Figure 13 of the datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to load ground or negative rail; marked with bar on top surface; carries full forward current and absorbs reverse energy during clamping. |
| 2 | Anode (A) | Connected to input source or positive rail; forms Schottky junction with cathode; requires no gate drive or bias network. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Prevents premature edge breakdown under repetitive surge stress (e.g., ESD or inductive kick), extending lifetime in unregulated inputs. |
| Low VF at 250 mA | 710–850 mV ensures <200 mW conduction loss at full rated current, reducing thermal derating needs in dense layouts. |
| Sub-6 ns trr | Enables use in 10–50 MHz digital signal routing without waveform distortion or ringing due to slow turn-off. |
| 39 pF zero-bias capacitance | Limits capacitive loading on high-impedance nodes such as microcontroller reset lines or analog sensor references. |
| SOD323F reflow footprint | Standardized 0.5 mm pad spacing and 0.6 mm pad length allows automated placement and IPC-compliant reflow without tombstoning. |
Applications
| High-Speed Switching | Line Termination |
|---|---|
Use Scenario: Fast-switching DC-DC converter synchronous rectification and flyback snubber networks. IC Role / Device Role / Timing Role: Unidirectional current steering element replacing slower PN diodes to reduce switching losses and improve efficiency above 500 kHz. Use Value: 5.9 ns trr and 710 mV VF cut conduction + recovery loss by ≥35% versus comparable 1N5711 in 12 V/2 A buck converters. |
Use Scenario: RS-485, CAN FD, and USB 2.0 data line termination to suppress reflections and overshoot. IC Role / Device Role / Timing Role: Low-capacitance clamp diode tied between signal line and local ground or supply rail. Use Value: 21 pF at 1 V reverse bias avoids signal rise-time degradation beyond 200 ps, preserving eye diagram integrity at 480 Mbps. |
| Voltage Clamping | Reverse Polarity Protection |
Use Scenario: Input rail overvoltage suppression in industrial PLC I/O modules and sensor front-ends. IC Role / Device Role / Timing Role: Shunt protection device conducting only during transients exceeding VR, diverting surge current away from downstream ICs. Use Value: 100 V VR rating with guard ring withstands ±1 kV EFT bursts per IEC 61000-4-4 without parametric shift or failure. |
Use Scenario: Battery-powered handheld instruments and field-deployable sensors with user-replaceable AA/AAA cells. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-load configuration blocking reverse current flow during incorrect battery insertion. Use Value: 1 µA IR at 75 V ensures <1 µA standby drain-extending 2-cell alkaline battery life beyond 10 years in sleep mode. |
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 | 30 V VR, 0.45 V VF @ 200 mA, SOD-123 package (2.7 × 1.6 mm) | Lower voltage rating; larger footprint; better for ≤12 V logic rails with tighter VF budget | Select when system max input is ≤30 V and lower forward loss (<450 mV) outweighs size penalty. |
| Vishay SD103A-TP | 40 V VR, 0.6 V VF @ 200 mA, DO-35 axial lead; no guard ring | Through-hole; higher trr (~50 ns); no surge robustness; unsuitable for SMT or high-dV/dt environments | Choose only for legacy through-hole designs where rework tolerance and cost dominate over speed and reliability. |
Compared with NSR0230HT1G and SD103A-TP, the BAT46WJ uniquely balances 100 V capability, 5.9 ns speed, and 1.7 mm × 1.25 mm size-making it optimal for modern 24–48 V industrial interfaces where space, surge immunity, and signal fidelity are jointly constrained.
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 automation, test equipment, and portable instrumentation programs.
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 efficiency technologies-including high-performance discrete, logic, and MOSFET devices-designed for automotive, industrial, and consumer applications.
The BAT46WJ belongs to Nexperia's general-purpose Schottky diode product line, engineered specifically for space-constrained, high-reliability signal and power rail protection in non-automotive industrial and computing systems.
FAQ
Is BAT46WJ suitable for reflow soldering only?
Yes. The datasheet explicitly states reflow soldering is the only recommended method. Wave or hand soldering risks thermal damage due to its thin SOD323F package and internal guard ring structure. Peak reflow temperature must not exceed 260 °C for ≤10 seconds, per JEDEC J-STD-020.
What does the "JK" marking on BAT46WJ indicate?
The "JK" laser marking code identifies the BAT46WJ device per Table 4 of the datasheet. It is not a date or lot code-it is the unique type identification applied to the cathode-side surface, with the bar adjacent to pin 1 confirming cathode polarity per Figure 12.
Can BAT46WJ replace BAT54 in 24 V systems?
No. BAT54 has only 30 V VR and lacks the guard ring; using it in 24 V systems with transients risks premature failure. BAT46WJ's 100 V rating and integrated guard ring make it a robust upgrade for 24 V industrial inputs where surge immunity is required.
Does BAT46WJ have automotive qualification?
No. Revision history (Table 8) confirms BAT46WJ was changed to "non-automotive" status in v.3 (2022). It is not AEC-Q101 qualified, lacks automotive-grade screening, and should not be used in safety-critical or vehicle-mounted applications.
BAT46WJ/ZLX 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/ZLX FAQ
1.How can I place an order for BAT46WJ/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46WJ/ZLX 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/ZLX reliable?
The price and inventory of BAT46WJ/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46WJ/ZLX is usually 5 days.
3.What payment methods are accepted for BAT46WJ/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46WJ/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46WJ/ZLX?
BAT46WJ/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46WJ/ZLX 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/ZLX?
For technical support, including BAT46WJ/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46WJ/ZLX requirements.
6.How does Aetrix verify that BAT46WJ/ZLX is sourced from the original manufacturer or authorized distributors?
All BAT46WJ/ZLX 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/ZLX meets industry standards.
7.What is the process for return or replacement of BAT46WJ/ZLX?
All BAT46WJ/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with BAT46WJ/ZLX, 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/ZLX part is unused and in its original packaging.
Return procedure for BAT46WJ/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT46WJ/ZLX Tags
-
1N4448X-TP
Micro Commercial Co
-
1N4148WX-TP
Micro Commercial Co
-
1N4148TR
onsemi
-
MMSD4148T1G
onsemi
-
MMBD914LT3G
onsemi
-
BAS16HT1G
onsemi
-
1N914BWT
onsemi
-
BAS21LT1G
onsemi
-
LL4148
onsemi
-
BAS16LT1G
onsemi
-
MMSD914T1G
onsemi
-
BAV21W-7-F
Diodes Incorporated
Tech Hub
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…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…
