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Nexperia USA Inc. BAT46GW-QJ
- Part No.:
- BAT46GW-QJ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAT46GW-QJ.pdf
- Description:
- BAT46GW-Q/SOD123/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:7,648
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Product details
Overview
BAT46GW-QJ 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, housed in an SOD123 surface-mount package; it delivers low forward voltage (710–850 mV @ 250 mA), low leakage (≤4 µA @ 75 V), and fast reverse recovery (5.9 ns), enabling high-speed switching and reverse polarity protection in automotive power rails.
For engineers reviewing the BAT46GW-QJ datasheet, BAT46GW-QJ pinout, BAT46GW-QJ application, or BAT46GW-QJ equivalent, key selection criteria include its AEC-Q101 qualification, thermal resistance (190 K/W to solder point), junction temperature limit (150 °C), and SOD123 footprint compatibility with space-constrained PCB layouts.
Technical Context
This Schottky diode uses a planar silicon structure with an integrated guard ring to enhance ruggedness against transient overvoltage and electrostatic stress. Its low forward voltage and sub-6 ns reverse recovery time stem from optimized metal–semiconductor junction design and minimal carrier storage.
The device operates across –40 °C to +150 °C ambient, with thermal performance defined for two mounting conditions: standard SOD123 footprint (Rth(j-a) = 320 K/W) and enhanced cathode pad (Rth(j-sp) = 35 K/W), supporting reliable operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 100 V - Maximum continuous blocking capability without breakdown; supports 24 V/48 V automotive bus clamping. |
| Forward Current (IF) | 250 mA - Continuous DC current rating; sufficient for signal-level and low-power supply rail protection. |
| Forward Voltage (VF) | 710–850 mV @ 250 mA - Low conduction loss reduces heat generation and improves efficiency in compact designs. |
| Reverse Leakage (IR) | ≤4 µA @ 75 V - Minimal standby current enables stable voltage clamping in always-on circuits. |
| Reverse Recovery Time (trr) | 5.9 ns - Enables >100 MHz switching in line termination and snubbing applications without oscillation. |
| Diode Capacitance (Cd) | 39 pF @ 0 V - Low junction capacitance preserves signal integrity in high-frequency interface protection. |
| Junction Temperature (Tj) | 150 °C - Rated maximum operating junction temperature ensures reliability in sealed enclosures. |
Pinout & Package
Encapsulated in the SOD123 plastic surface-mount package (2.675 mm × 1.6 mm × 1.15 mm body), the BAT46GW-QJ features a two-terminal configuration with cathode marked by a bar on the package top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Negative terminal; connected to ground or lower-potential node in reverse polarity protection and clamping paths. |
| 2 | Anode (A) | Positive terminal; interfaces with input power or signal source; carries forward current during conduction. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring integration | Enhances ESD and surge robustness without increasing forward voltage or capacitance. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22. |
| Low thermal resistance to solder point | 35 K/W - Enables efficient heat transfer from junction to PCB copper, critical for sustained 250 mA operation. |
| Small SOD123 footprint | 2.675 mm × 1.6 mm - Compatible with high-density routing and automated placement in ADAS and body control modules. |
| Wide operating temperature range | –40 °C to +150 °C - Supports deployment in engine bay, transmission control, and battery management systems. |
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: Low-loss freewheeling path during MOSFET off-time; replaces slower PN diodes to reduce switching losses. Use Value: 5.9 ns trr prevents reverse recovery tail current, improving efficiency by up to 3% at 500 kHz switching frequency. |
Use Scenario: RS-485, CAN FD, and LVDS bus termination in automotive communication modules. IC Role / Device Role / Timing Role: Bidirectional clamping element absorbing line transients while preserving signal edge fidelity. Use Value: 39 pF capacitance and ≤850 mV VF minimize signal distortion and ensure <1 ns timing skew across differential pairs. |
| Voltage Clamping | Reverse Polarity Protection |
|
Use Scenario: Overvoltage suppression on 12 V/24 V power inputs of infotainment head units and telematics gateways. IC Role / Device Role / Timing Role: Shunt clamp activated during load dump or ISO 7637-2 pulse 5a events. Use Value: 100 V VR withstands 120 V transients; 2.5 A IFSM handles 10 ms surge pulses without failure. |
Use Scenario: Input protection for USB-C PD ports and auxiliary power supplies in vehicle docking stations. IC Role / Device Role / Timing Role: Series-blocking diode preventing damage when external power is connected with reversed polarity. Use Value: 710 mV typical VF limits voltage drop to <0.85 V at 250 mA, avoiding brownout in downstream 3.3 V logic rails. |
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 | Higher VR (40 V), lower VF (410 mV @ 200 mA), SOD-123 package, AEC-Q101 qualified. | Optimized for 5–12 V systems only; insufficient for 24 V load dump clamping. | Select when forward voltage minimization outweighs reverse voltage headroom in low-voltage domains. |
| Vishay VS-2EDH02HM3/85A | Same VR (100 V), higher IF (350 mA), higher VF (890 mV @ 250 mA), SOD-123, AEC-Q101. | Higher thermal mass supports longer pulse currents but increases conduction loss in continuous operation. | Prefer for intermittent high-current surges where peak IFSM margin is critical over steady-state efficiency. |
Compared with BAT46GW-QJ, the NSS40201MR6T1G trades reverse voltage headroom for lower conduction loss in low-voltage systems, while the VS-2EDH02HM3/85A prioritizes surge current handling over forward voltage efficiency-making BAT46GW-QJ the balanced choice for general-purpose 24 V automotive clamping and protection.
Availability
BAT46GW-QJ is available at Aetrix Electronics and suitable for automotive power management, infotainment system protection, and ADAS sensor interface circuits requiring stable component supply and AEC-Q101 compliance.
Supply support for BAT46GW-QJ 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.
The BAT46GW-QJ belongs to Nexperia's AEC-Q101-qualified Schottky diode product line, engineered specifically for robust voltage clamping, reverse polarity protection, and high-speed signal integrity in automotive electronic control units.
FAQ
Is BAT46GW-QJ suitable for 48 V mild-hybrid vehicle systems?
No. While rated for 100 V reverse voltage, BAT46GW-QJ is characterized and qualified for 12 V and 24 V automotive systems per ISO 16750-2 and ISO 7637-2. Its 2.5 A non-repetitive peak current and thermal derating above 85 °C do not meet the sustained surge requirements of 48 V architectures, where higher IFSM and enhanced thermal design are mandatory.
What is the meaning of the 'QJ' suffix in BAT46GW-QJ?
The 'QJ' suffix denotes Nexperia's automotive-grade variant with full AEC-Q101 qualification, extended temperature screening (–40 °C to +150 °C), and traceable lot-level test data per PPAP requirements. It is functionally identical to BAT46GW-Q but released under stricter automotive release protocols and documentation controls.
Can BAT46GW-QJ be used in place of BAT54 series diodes?
No. BAT54 devices are dual common-cathode Schottky diodes in SOT-23 packages with different pinout, lower VR (30 V), and higher capacitance (~100 pF). BAT46GW-QJ is a single-diode SOD123 part with 100 V rating and 39 pF capacitance-pin-incompatible and electrically mismatched for direct substitution in existing BAT54 layouts or circuits.
Does BAT46GW-QJ require derating at elevated ambient temperatures?
Yes. At 105 °C ambient, the maximum allowable continuous forward current drops to 150 mA due to thermal resistance limitations (Rth(j-a) = 320 K/W). Derating follows the curve in Figure 3 of the datasheet: at 125 °C ambient, IF must be limited to 95 mA to maintain Tj ≤ 150 °C under natural convection conditions.
BAT46GW-QJ 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-QJ FAQ
1.How can I place an order for BAT46GW-QJ through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT46GW-QJ 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-QJ reliable?
The price and inventory of BAT46GW-QJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT46GW-QJ is usually 5 days.
3.What payment methods are accepted for BAT46GW-QJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT46GW-QJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT46GW-QJ?
BAT46GW-QJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT46GW-QJ 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-QJ?
For technical support, including BAT46GW-QJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT46GW-QJ requirements.
6.How does Aetrix verify that BAT46GW-QJ is sourced from the original manufacturer or authorized distributors?
All BAT46GW-QJ 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-QJ meets industry standards.
7.What is the process for return or replacement of BAT46GW-QJ?
All BAT46GW-QJ units undergo pre-shipment inspection (PSI). If there is an issue with BAT46GW-QJ, 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-QJ part is unused and in its original packaging.
Return procedure for BAT46GW-QJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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