BAT54C WW1 Avalon Control Board Schottky Barrier Diode
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BAT54C WW1 Schottky Barrier Diode | SOT-23 Repair Part for Avalon Control Board
The BAT54C (silk mark "WW1") is a high-performance Schottky barrier diode in the SOT-23 SMD plastic package, used as a chip-level repair part on Canaan Avalon control boards. The dual-diode topology with integrated guard ring delivers low forward voltage and low capacitance for switching and protection applications.
Standard BAT54C electrical specs: VRRM 30V, IF 200mA continuous, VF ~0.32V at 1mA, AEC-Q101 automotive-qualified. Typical use on Avalon control boards: ultra-high-speed switching, voltage clamping, line termination, and reverse-polarity protection.
When to Replace a BAT54C WW1
- Avalon control board fails to boot with one or more protection diodes shorted on the supply rails.
- Multimeter diode-test shows shorted or open junction at the BAT54C position.
- Visible damage on the SOT-23 package — burnt or cracked plastic.
- Reverse-polarity event caused cascade damage including the protection diode.
BAT54C WW1 Schottky Diode Specifications
| Feature | Specification |
|---|---|
| Type | Dual Schottky Barrier Diode (common cathode) |
| Silk Mark | WW1 |
| Reverse Voltage (VRRM) | 30V |
| Forward Current (IF) | 200mA continuous |
| Forward Voltage (VF) typical | 0.32V at 1mA |
| Capacitance | Low (integrated guard ring) |
| Qualification | AEC-Q101 automotive-grade |
| Package | SOT-23 SMD |
| Application | Avalon control board protection / switching |
FAQ — BAT54C WW1 Schottky Diode
Q: What does the "WW1" silk mark mean?
A: WW1 is the standard SMD silk-mark code for BAT54C-family Schottky diodes in SOT-23 packages. Different vendors use the same mark for cross-compatible parts; the BAT54C electrical specs are the JEDEC-standard reference.
Q: BAT54C vs BAT54A vs BAT54S — what's the difference?
A: They're three configurations of the same SOT-23 dual-diode package. BAT54C = common cathode (two anodes external). BAT54A = common anode. BAT54S = series. Always match the original part's silk mark — wrong configuration = wrong circuit behavior.
Q: How do I test in-circuit?
A: Multimeter in diode-test mode. A healthy Schottky shows ~0.2-0.4V forward, OL reverse. Shorted = ~0V both ways; open = OL both ways.
Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tape-and-reel quantities.
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Avalon control board repair benches stocking BAT54C diodes in volume? Email contact@lys-sz.com for tape-and-reel pricing. Worldwide shipping from our Shenzhen warehouse.
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