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Nexperia USA Inc. BAT46GW-QX
- Part No.:
- BAT46GW-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAT46GW-QX.pdf
- Description:
- BAT46GW-Q/SOD123/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:836
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Product details
Overview
BAT46GW-QX from Nexperia is a planar Schottky barrier diode with integrated guard ring for stress protection, rated at 100 V reverse voltage and 250 mA forward current, featuring 710 mV typical forward voltage at 250 mA and ≤4 µA reverse leakage at 75 V - deployed in automotive line termination and reverse polarity protection circuits.
For engineers reviewing the BAT46GW-QX datasheet, BAT46GW-QX pinout, BAT46GW-QX application, or BAT46GW-QX equivalent, key selection criteria include low VF (≤850 mV), AEC-Q101 qualification, SOD123 package thermal resistance (190 K/W to solder point), and 5.9 ns reverse recovery time in high-speed switching designs.
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 junction capacitance (21–39 pF) and fast trr (5.9 ns) support operation in >10 MHz switching and clamping applications.
Thermal performance is defined for two PCB mounting conditions: standard SOD123 footprint yields Rth(j-a) = 320 K/W, while a 1 cm² cathode pad reduces it to 190 K/W - enabling reliable 250 mA DC operation up to 125 °C ambient when properly heatsinked.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V maximum - supports 48 V automotive bus clamping with 2× safety margin. |
| Forward Current (IF) | 250 mA continuous - sufficient for signal-level power rail protection and biasing. |
| Forward Voltage (VF) | 710 mV typ. at 250 mA - minimizes conduction loss in low-voltage reverse polarity guards. |
| Reverse Leakage (IR) | 1 µA typ. at 75 V - ensures low standby power in always-on automotive modules. |
| Reverse Recovery (trr) | 5.9 ns - enables clean edge handling in 10–50 MHz digital line termination. |
| Junction Temp (Tj) | 150 °C max - allows operation in under-hood environments with localized heating. |
| Capacitance (Cd) | 21 pF at 1 V - preserves signal integrity in high-speed data line clamping. |
Pinout & Package
Encapsulated in a compact SOD123 surface-mount plastic package (2.675 mm × 1.6 mm × 1.15 mm body), with cathode marked by a bar on the device top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative terminal; marking bar identifies this pin - connects to system ground or return path in reverse polarity protection. |
| 2 | Anode (A) | Positive terminal; ties to input power rail - current flows anode-to-cathode during forward conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Enhances ESD and transient surge immunity without external components - critical for AEC-Q101 compliance. |
| Low VF / low IR trade-off | 710 mV VF at 250 mA with only 1 µA IR at 75 V - balances efficiency and leakage in battery-sensitive systems. |
| AEC-Q101 qualification | Validated for automotive temperature range (−40 °C to +125 °C) and mechanical stress - suitable for engine control and body electronics. |
| SOD123 thermal design | 190 K/W Rth(j-sp) with 1 cm² cathode pad - enables 250 mA operation at 85 °C ambient without derating. |
Applications
| High-Speed Switching | Line Termination |
|---|---|
Use Scenario: Fast-switching DC-DC converter freewheeling path in ADAS camera modules. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current recirculation during MOSFET off-time. Use Value: 5.9 ns trr prevents shoot-through overlap; 710 mV VF reduces power loss by 18% vs. standard silicon diodes at 250 mA. |
Use Scenario: RS-485/USB data line termination in infotainment head units. IC Role / Device Role / Timing Role: Clamp diode limiting overshoot/undershoot to ±0.5 V beyond rail. Use Value: 21 pF capacitance avoids signal distortion at 25 Mbps; 100 V VR withstands ESD transients per IEC 61000-4-2. |
| Voltage Clamping | Reverse Polarity Protection |
Use Scenario: 12 V battery input protection in telematics control units. IC Role / Device Role / Timing Role: Transient voltage clamp shunting spikes above 12 V to ground. Use Value: Guard ring sustains 100 V repetitive clamping; 4 µA IR at 75 V prevents battery drain in parked state. |
Use Scenario: Input protection for 5 V microcontroller power rails in automotive sensors. IC Role / Device Role / Timing Role: Series-connected anode-to-load, blocking reverse current if battery is misconnected. Use Value: 710 mV VF adds <1% voltage drop at 250 mA - preserves brown-out margin for 5 V LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STMicroelectronics STPS0530Z | 30 V VR, 500 mA IF, VF = 450 mV typ. at 500 mA - lower voltage rating but higher current and lower VF. | Not suitable for 48 V+ clamping; better for 3.3/5 V rail protection where low VF dominates. | Select when operating voltage ≤30 V and forward loss is primary concern. |
| Vishay VS-2EDH01HM3/85A | 100 V VR, 200 mA IF, VF = 790 mV typ. at 200 mA, AEC-Q101 qualified - slightly lower current rating and higher VF. | Compatible for reverse polarity protection but derates to 200 mA continuous - limits use in sustained 250 mA loads. | Select when footprint compatibility with SMB is required and 200 mA suffices. |
Compared with BAT46GW-QX, STPS0530Z offers superior efficiency below 30 V but fails at automotive 48 V transients, while VS-2EDH01HM3/85A matches voltage rating and qualification but requires current derating - BAT46GW-QX uniquely balances 100 V, 250 mA, and AEC-Q101 in SOD123.
Availability
BAT46GW-QX is available at Aetrix Electronics and suitable for automotive line termination, reverse polarity protection, and high-speed switching applications requiring stable component supply across production lifecycles.
Supply support for BAT46GW-QX 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 components and advanced packaging.
BAT46GW-QX belongs to Nexperia's AEC-Q101-qualified Schottky diode portfolio, engineered specifically for robustness in automotive power management, signal integrity, and protection circuits.
FAQ
Is BAT46GW-QX pin-compatible with BAT46W?
No. BAT46GW-QX uses the SOD123 package (2.675 mm × 1.6 mm), while BAT46W uses SOD123W - a variant with different land pattern and thermal pad layout. Mechanical dimensions and solder footprint differ per Nexperia's footprints in Figures 9 and 10 of the datasheet.
What is the maximum allowable pulsed forward current for BAT46GW-QX?
The non-repetitive peak forward current (IFSM) is 2.5 A for tp < 10 ms square-wave pulses at Tj(init) = 25 °C, as specified in Table 5. This rating assumes FR4 PCB mounting with standard footprint and applies only to short-duration transients.
Does BAT46GW-QX support reflow soldering per JEDEC J-STD-020?
Yes. The device is qualified for lead-free reflow per JEDEC J-STD-020D, with peak temperature up to 260 °C. Figure 9 provides the recommended reflow footprint (2.36 mm × 1.11 mm cathode pad), and thermal resistance values assume this mounting configuration.
How does the guard ring affect reliability in automotive environments?
The integrated guard ring improves resistance to localized avalanche breakdown during load-dump transients and ESD events. Per AEC-Q101 testing, it enables sustained operation at 100 V VR with <4 µA IR after 1000 hours at 125 °C - directly supporting under-hood module longevity.
BAT46GW-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SOD-123
- 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-123
- Operating Temperature - Junction:
- 150°C
BAT46GW-QX FAQ
1.How can I place an order for BAT46GW-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46GW-QX 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 BAT46GW-QX reliable?
The price and inventory of BAT46GW-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46GW-QX is usually 5 days.
3.What payment methods are accepted for BAT46GW-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46GW-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46GW-QX?
BAT46GW-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46GW-QX 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 BAT46GW-QX?
For technical support, including BAT46GW-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46GW-QX requirements.
6.How does Aetrix verify that BAT46GW-QX is sourced from the original manufacturer or authorized distributors?
All BAT46GW-QX 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 BAT46GW-QX meets industry standards.
7.What is the process for return or replacement of BAT46GW-QX?
All BAT46GW-QX units undergo pre-shipment inspection (PSI). If there is an issue with BAT46GW-QX, 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 BAT46GW-QX part is unused and in its original packaging.
Return procedure for BAT46GW-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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