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Nexperia USA Inc. BAT54SWF
- Part No.:
- BAT54SWF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAT54SWF.pdf
- Description:
- DIODE ARR SCHOT 30V 200MA SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:7,773
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Product details
Overview
BAT54SWF from Nexperia is a dual common-cathode Schottky barrier diode in SOT323 (SC-70) package, featuring 30 V reverse voltage rating, 800 mV max forward voltage at 100 mA, 2 µA max reverse leakage at 25 V, 10 pF capacitance at 1 V, and 5 ns reverse recovery time - deployed for ultra-high-speed switching and reverse polarity protection in portable power management circuits.
For engineers reviewing the BAT54SWF datasheet, BAT54SWF pinout, BAT54SWF application, or BAT54SWF equivalent, key selection criteria include low VF for efficiency-sensitive bias networks, sub-10 pF junction capacitance for RF line termination, and dual-diode configuration enabling compact dual-rail clamping or bidirectional ESD front-end protection.
Technical Context
The BAT54SWF integrates two independent Schottky diodes sharing a common cathode terminal (Pin 3), forming a dual-common-cathode topology ideal for rail-to-rail clamping and complementary signal steering. Its planar structure includes a guard ring for enhanced ESD robustness and stress immunity.
Designed for high-frequency operation, it delivers 5 ns reverse recovery time with minimal stored charge, enabling clean switching in 10–100 MHz digital interface lines and DC-DC converter snubbing. Thermal resistance of 625 K/W (junction-to-ambient, FR4 PCB) supports continuous 200 mA forward current within 150 °C junction limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Voltage (VR) | 30 V - Supports clamping up to 24 V systems with 25 % margin against transients. |
| Forward Voltage (VF) | 800 mV @ 100 mA - Minimizes conduction loss in low-voltage bias and level-shift paths. |
| Reverse Leakage (IR) | 2 µA @ 25 V - Ensures negligible standby current in battery-backed or always-on circuits. |
| Junction Capacitance (Cd) | 10 pF @ 1 V - Enables effective high-frequency termination without signal distortion above 30 MHz. |
| Reverse Recovery Time (trr) | 5 ns - Allows reliable operation in >20 MHz switching nodes without tail current artifacts. |
| Thermal Resistance (Rth(j-a)) | 625 K/W - Requires no heatsink on standard FR4 PCB; derating begins above ~125 °C ambient. |
| Package | SOT323 (SC-70) - 2.0 × 1.25 × 0.95 mm footprint compatible with fine-pitch automated assembly. |
Pinout & Package
Encapsulated in a surface-mount SOT323 (SC-70) plastic package measuring 2.0 mm × 1.25 mm × 0.95 mm with 1.3 mm lead pitch and tin-plated terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Diode 1) | Input node for first Schottky path; connects to positive rail or signal source in clamping. |
| 2 | Cathode (Diode 2) | Output node for second diode; used for bidirectional signal routing or dual-rail reference. |
| 3 | Common Cathode / Anode (Diode 2) | Shared terminal enabling dual-diode operation with single return path - critical for space-constrained dual-clamp designs. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage | 800 mV max at 100 mA enables <100 mW conduction loss in 3.3 V/5 V logic interfaces. |
| Ultra-low capacitance | 10 pF at 1 V ensures minimal loading on high-speed data lines (USB, I²C, SPI). |
| Guard-ring protected die | Enhances ESD tolerance to >8 kV HBM, improving reliability in handheld and industrial I/O stages. |
| Dual-common-cathode configuration | Reduces board area by 40 % vs. discrete dual-diode solutions while maintaining independent anode control. |
Applications
| USB Data Line Protection | DC-DC Converter Output Clamping |
|---|---|
|
Use Scenario: Protecting USB 2.0 D+ and D− lines from ESD and overvoltage events in portable devices. IC Role / Device Role / Timing Role: Dual Schottky clamp limiting voltage excursions to ±0.3 V beyond rails using shared cathode to VBUS/GND. Use Value: 10 pF capacitance avoids signal integrity degradation at 480 Mbps; 5 ns trr prevents pulse distortion during fast transients. |
Use Scenario: Snubbing flyback spikes and clamping output overshoot in synchronous buck converters operating at 500 kHz–2 MHz. IC Role / Device Role / Timing Role: Fast-recovery dual diode absorbing inductive kickback across upper/lower MOSFETs during dead-time transitions. Use Value: 800 mV VF reduces conduction loss vs. silicon diodes; 200 mA IF rating supports ≤3 A converter outputs with margin. |
| Reverse Polarity Input Protection | LVDS Signal Termination |
|
Use Scenario: Preventing damage from incorrect battery or adapter insertion in 3.3 V/5 V embedded systems. IC Role / Device Role / Timing Role: Series-connected Schottky (Anode 1 → Load, Cathode 3 → VCC) blocking reverse current with minimal dropout. Use Value: 2 µA IR at 25 V ensures <1 µW standby loss; 30 V VR accommodates 24 V industrial inputs with safety margin. |
Use Scenario: AC-coupled termination of LVDS pairs in FPGA-to-ADC clock distribution or high-speed sensor interfaces. IC Role / Device Role / Timing Role: Dual-diode network providing matched 100 Ω differential termination with DC bias stabilization. Use Value: Matched VF and Cd across both diodes maintains <0.5 % skew; 5 ns trr avoids jitter accumulation at 1+ Gbps data rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NSR0230P2T5G | Single diode, SOD-523, 30 V VR, 420 mV VF @ 100 mA, 1.5 pF Cd | Lacks dual configuration; lower capacitance but no common-cathode functionality | Select when only one clamping path is needed and ultra-low Cd (<2 pF) is prioritized over dual-channel integration. |
| Vishay SDM1030T-7-F | Dual common-anode, SOT-23, 30 V VR, 450 mV VF @ 100 mA, 30 pF Cd | Inverted topology limits use in cathode-referenced clamps; higher Cd degrades >100 MHz performance | Prefer for low-VF bias networks where common-anode routing simplifies layout, accepting higher capacitance trade-off. |
Compared with BAT54SWF, NSR0230P2T5G offers lower capacitance but no dual-diode integration, while SDM1030T-7-F provides lower forward voltage but higher capacitance and incompatible common-anode topology - making BAT54SWF optimal for space-constrained dual-rail clamping requiring balanced speed, loss, and layout flexibility.
Availability
BAT54SWF is available at Aetrix Electronics and suitable for USB interface protection, DC-DC converter snubbing, and reverse polarity input protection requiring stable component supply, consistent parametric performance, and long-term production availability.
Supply support for BAT54SWF 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 delivering high-performance, reliable discrete, logic, and MOSFET devices with focus on efficiency, miniaturization, and automotive-grade quality.
BAT54SWF belongs to Nexperia's Schottky diode portfolio engineered for high-speed signal integrity and power efficiency in portable, industrial, and communications equipment - emphasizing low VF, low Cd, and robust SMT packaging.
FAQ
What is the maximum continuous forward current rating for BAT54SWF?
The BAT54SWF is rated for 200 mA continuous forward current per diode at Tamb ≤ 25 °C on a standard FR4 PCB. Derating is required above 25 °C ambient, with full derating to zero at 150 °C junction temperature. The 300 mA repetitive peak rating applies only for pulses ≤1 s with duty cycle ≤0.5.
Can BAT54SWF be used in automotive applications?
No - BAT54SWF is explicitly marked as non-automotive qualified in its revision history. It lacks AEC-Q101 qualification and has not undergone automotive-grade stress testing. For automotive use, Nexperia recommends the BAT54SW-Q series, which includes extended temperature range, enhanced ESD robustness, and full AEC-Q101 compliance.
How does the common-cathode pin configuration affect PCB layout?
Pin 3 serves as the shared cathode for both diodes, allowing compact placement where both anodes (Pins 1 and 2) connect to separate signal or power rails while returning to a single ground or reference node. This eliminates need for two separate cathode traces, reducing routing congestion and parasitic inductance in high-frequency clamping layouts.
Is BAT54SWF compatible with lead-free reflow soldering processes?
Yes - BAT54SWF is qualified for lead-free reflow per JEDEC J-STD-020, supporting peak temperatures up to 260 °C. Its SOT323 package uses matte tin terminations and is designed for standard reflow profiles with ramp rates ≤3 °C/s, soak at 150–200 °C for 60–120 s, and peak exposure ≤10 s at 260 °C.
BAT54SWF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 200mA (DC)
- Voltage - Forward (Vf) (Max) @ If:
- 800 mV @ 100 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 25 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAT54SWF FAQ
1.How can I place an order for BAT54SWF through Aetrix?
Please submit a Request for Quotation (RFQ) for BAT54SWF 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 BAT54SWF reliable?
The price and inventory of BAT54SWF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAT54SWF is usually 5 days.
3.What payment methods are accepted for BAT54SWF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAT54SWF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAT54SWF?
BAT54SWF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAT54SWF 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 BAT54SWF?
For technical support, including BAT54SWF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAT54SWF requirements.
6.How does Aetrix verify that BAT54SWF is sourced from the original manufacturer or authorized distributors?
All BAT54SWF 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 BAT54SWF meets industry standards.
7.What is the process for return or replacement of BAT54SWF?
All BAT54SWF units undergo pre-shipment inspection (PSI). If there is an issue with BAT54SWF, 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 BAT54SWF part is unused and in its original packaging.
Return procedure for BAT54SWF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAT54SWF Tags
-
BAV99-7-F
Diodes Incorporated
-
BAT54C-7-F
Diodes Incorporated
-
BAV99,215
Nexperia USA Inc.
-
BAT54SLT1G
onsemi
-
BAV70LT1G
onsemi
-
BAT54CLT1G
onsemi
-
BAT54S-7-F
Diodes Incorporated
-
BAV99LT1G
onsemi
-
BAT54S,215
Nexperia USA Inc.
-
BAS40-04LT1G
onsemi
-
MMBD1503-TP
Micro Commercial Co
-
BAV99WT1G
onsemi
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