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Nexperia USA Inc. BAT46WH,115
- Part No.:
- BAT46WH,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
BAT46WH,115.pdf
- Description:
- DIODE SCHOTT 100V 250MA SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:259,663
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Product details
Overview
BAT46WH from Nexperia is a single planar Schottky barrier diode with integrated guard ring for stress protection, housed in an SOD123F surface-mount package. It delivers 710–850 mV forward voltage at 250 mA, ≤4 µA reverse leakage at 75 V, and 5.9 ns reverse recovery time - enabling high-speed switching and reverse polarity protection in space-constrained DC/DC converters and USB power paths.
For engineers reviewing the BAT46WH datasheet, BAT46WH pinout, BAT46WH application, or BAT46WH equivalent, key selection criteria include low VF for efficiency-critical 5 V/3.3 V rail clamping, 100 V VR rating for transient tolerance, SOD123F thermal performance (Rth(j-sp) = 25 K/W), and verified 39 pF capacitance at 1 MHz for signal integrity in line termination.
Technical Context
The BAT46WH employs a planar Schottky junction architecture with an integrated guard ring to suppress edge breakdown under high dv/dt or ESD stress. Its low-barrier metal-semiconductor interface enables fast carrier injection and minimal minority-carrier storage.
This discrete diode operates without bias circuitry or control logic - conduction is governed solely by applied voltage polarity and magnitude relative to its 0.71–0.85 V forward threshold. Thermal design relies on direct cathode pad soldering to achieve 25 K/W junction-to-solder-point resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V - supports input transients up to IEC 61000-4-5 Level 4 (4 kV surge) in 5–24 V systems |
| Forward Voltage (VF) | 710–850 mV @ 250 mA - reduces conduction loss by ≥30% vs. standard silicon diodes in 3.3 V load-switch paths |
| Reverse Current (IR) | 1–4 µA @ 75 V - ensures <100 nW standby leakage in battery-backed circuits at room temperature |
| Reverse Recovery Time (trr) | 5.9 ns - enables clean switching at >50 MHz in RF detector and high-frequency rectifier applications |
| Diode Capacitance (Cd) | 39 pF @ 0 V - maintains signal integrity in 100 Mbps USB 2.0 data-line clamping without resonance |
| Thermal Resistance (Rth(j-sp)) | 25 K/W - allows 780 mW power dissipation with <20 °C rise above solder point on 1 cm² cathode pad |
Pinout & Package
Encapsulated in the SOD123F plastic surface-mount package (2.6 mm × 1.6 mm × 1.1 mm), the BAT46WH uses a two-terminal configuration with flat leads optimized for automated reflow assembly and thermal transfer via the cathode pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked side) | Cathode (K) | Connected to ground or lower-potential node; marking bar identifies this terminal; primary thermal path to PCB |
| 2 | Anode (A) | Connected to input voltage or higher-potential node; carries forward current during conduction phase |
Key Features
| Feature | Design Value |
|---|---|
| Integrated guard ring | Prevents premature edge breakdown under repetitive 100 V reverse bias, extending lifetime in industrial power supplies |
| Low forward voltage | 710 mV typical at 250 mA - minimizes voltage drop in 3.3 V reverse-polarity protection circuits |
| SOD123F footprint | 2.6 mm × 1.6 mm body with 1.1 mm height - fits 0805-class board area while enabling 1 cm² thermal pad for 780 mW operation |
| Low capacitance | 39 pF at 0 V - avoids signal distortion in 100 MHz clock line termination and RF envelope detection |
Applications
| High-Speed Switching | Line Termination |
|---|---|
|
Use Scenario: Fast-switching buck converter freewheeling path in portable SSD power management. IC Role / Device Role / Timing Role: Freewheeling diode conducting during low-side MOSFET off-time; handles 250 mA peak current with sub-6 ns turn-off. Use Value: 5.9 ns trr prevents shoot-through losses and enables >2 MHz switching frequency without snubbers. |
Use Scenario: USB 2.0 D+ and D− line termination in host controller interfaces. IC Role / Device Role / Timing Role: Clamping diode limiting signal swing to VDD + 0.85 V during hot-plug events. Use Value: 39 pF capacitance avoids resonance at 480 MHz harmonics while maintaining <100 mV overshoot margin. |
| Voltage Clamping | Reverse Polarity Protection |
|
Use Scenario: Overvoltage clamp on 12 V automotive accessory rail subjected to load-dump transients. IC Role / Device Role / Timing Role: Shunt device clamping transient spikes to ≤100 V before downstream LDOs. Use Value: 100 V VR rating withstands ISO 7637-2 Pulse 5a (120 V/100 ms) without avalanche degradation. |
Use Scenario: Input protection for 5 V IoT sensor node powered by barrel-jack adapter. IC Role / Device Role / Timing Role: Series-connected anode-to-input, cathode-to-VCC; blocks reverse current when plug is inverted. Use Value: 1 µA max IR at 75 V ensures <1 µW power loss in always-on battery monitoring circuits. |
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), higher VF (800–950 mV @ 200 mA), same SOD-123 package | Restricted to ≤5 V systems; unsuitable for 12 V line clamping or load-dump protection | Select only for cost-sensitive 3.3 V USB power switches where 30 V VR suffices |
| Vishay VS-2EDH01HM3/85A | Higher VR (200 V), larger SOD-123 package (3.0 mm × 1.8 mm), VF = 750–900 mV @ 250 mA | Supports 24 V industrial rails but requires 15% more PCB area and has 2× Rth(j-a) in free air | Choose when 200 V transient immunity is mandatory and thermal pad area exceeds 1 cm² |
Compared with NSR0230HT1G and VS-2EDH01HM3/85A, the BAT46WH uniquely balances 100 V capability, 5.9 ns speed, and SOD123F compactness - making it optimal for 5–12 V embedded systems needing both surge resilience and high-frequency response.
Availability
BAT46WH is available at Aetrix Electronics and suitable for high-speed switching, line termination, voltage clamping, and reverse polarity protection requiring stable component supply across consumer, industrial, and computing designs.
Supply support for BAT46WH 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 devices - founded as part of Philips and now an independent leader in essential semiconductors.
The BAT46WH belongs to Nexperia's Schottky diode portfolio engineered for efficiency-critical signal and power routing in space-constrained, high-reliability applications - emphasizing low VF, fast trr, and robust packaging.
FAQ
What is the maximum continuous forward current for BAT46WH at 75 °C ambient?
At 75 °C ambient temperature on an FR4 PCB with standard footprint, the BAT46WH supports 0.22 A average forward current (IF(AV)) under DC conditions (duty cycle δ = 1). This derating ensures junction temperature remains below 150 °C with 285 K/W thermal resistance to ambient.
Does BAT46WH require a heatsink for 780 mW operation?
No external heatsink is required. The 780 mW total power dissipation rating assumes mounting on an FR4 PCB with a 1 cm² tin-plated copper pad under the cathode. With Rth(j-sp) = 25 K/W, this yields only a 19.5 °C temperature rise above the solder point - well within safe operating limits.
Can BAT46WH be used in automotive applications?
No. Per Nexperia's revision history (v.3, October 2024), BAT46WH is explicitly non-automotive qualified. It lacks AEC-Q101 qualification, automotive-grade screening, and extended temperature validation beyond −55 °C to +150 °C ambient. Automotive alternatives must be selected from Nexperia's -Q qualified series.
How does the integrated guard ring improve reliability?
The guard ring redistributes electric field lines away from the Schottky junction periphery, suppressing edge-initiated avalanche breakdown during repetitive 100 V reverse bias or ESD events. This extends operational lifetime in industrial power supplies subject to frequent line transients and improves consistency in automated test yield.
BAT46WH,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123F
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- 150°C (Max)
BAT46WH,115 FAQ
1.How can I place an order for BAT46WH,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46WH,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 BAT46WH,115 reliable?
The price and inventory of BAT46WH,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46WH,115 is usually 5 days.
3.What payment methods are accepted for BAT46WH,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46WH,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46WH,115?
BAT46WH,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46WH,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 BAT46WH,115?
For technical support, including BAT46WH,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46WH,115 requirements.
6.How does Aetrix verify that BAT46WH,115 is sourced from the original manufacturer or authorized distributors?
All BAT46WH,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 BAT46WH,115 meets industry standards.
7.What is the process for return or replacement of BAT46WH,115?
All BAT46WH,115 units undergo pre-shipment inspection (PSI). If there is an issue with BAT46WH,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 BAT46WH,115 part is unused and in its original packaging.
Return procedure for BAT46WH,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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