MUR1620CTR 16A 200V Ultrafast Rectifier for Antminer APW12 PSU
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MUR1620CTR 16A 200V Ultrafast Rectifier | Replacement Diode for Antminer APW12 / APW121215 / APW121417 PSU Repair
The MUR1620CTR is a 16A / 200V common-anode dual ultrafast rectifier used on the Bitmain Antminer APW12, APW121215 and APW121417 power supplies. Drop-in replacement when an original rectifier fails — restores stable output and reduces downtime on professional mining benches. The fast 35ns reverse recovery time and high-temperature glass-passivated junction make it suitable for continuous operation at the switching frequencies APW12-class PSUs run.
The device is a common-anode dual rectifier with soft-recovery characteristics — designed specifically for high-frequency switching power supplies and inverters. Each branch carries 8A continuous for a total of 16A across the device, with a 200V repetitive peak reverse voltage. The glass-passivated junction technology gives long-term reliability under the thermal cycling that mining duty imposes on output-stage diodes.
When to Replace the MUR1620CTR
- APW12 output rail dead or out of spec — rectifier failed short or open, primary controller can't drive the output cleanly.
- Excessive output ripple visible on a scope — degraded rectifier, output capacitors no longer filtering cleanly.
- Overcurrent trip at startup — short across the rectifier pulling the primary into protection.
- Visible burn or thermal damage on the package — direct replacement, swap both branches if either fails.
- Preventive PSU refurbishment — replace alongside output capacitors during a complete APW12 rebuild.
MUR1620CTR Ultrafast Rectifier Specifications
| Parameter | Specification |
|---|---|
| Part Number | MUR1620CTR |
| Rectifier Type | Common-anode dual ultrafast rectifier |
| Average Forward Current (IO) | 16A total (8A per branch) |
| Repetitive Peak Reverse Voltage (VRRM) | 200V |
| Reverse Recovery Time (trr) | 35ns typical |
| Junction Technology | High-temperature glass-passivated |
| Recovery Profile | Soft recovery (low switching loss) |
| Typical Application | APW12 / APW121215 / APW121417 PSU repair |
| Function | Output rectification, high-frequency switching power supplies and inverters |
| Condition | Brand New |
FAQ — MUR1620CTR Ultrafast Rectifier
Q: Does the MUR1620CTR fit other Antminer PSU generations beyond APW12?
A: This rectifier matches the APW12, APW121215 and APW121417 production runs. The earlier APW9 / APW9+ and newer APW17 use different rectifier devices in their output stages. Match the part marking on the original device before substituting.
Q: What does "common-anode dual" mean and why does it matter?
A: Both diodes share a common anode pin (the third pin). The APW12 output stage uses this topology for synchronous rectification — replacing with a separate-anode device would require rerouting the PCB, which isn't realistic.
Q: Is heat-sinking required during installation?
A: Yes — at 16A continuous the rectifier dissipates several watts under load. The PSU PCB pad layout typically provides the heat-spreader; ensure the package is reflowed flat against the pad with no voids in the solder joint.
Q: Bulk pricing for repair shops?
A: Yes — email contact@lys-sz.com with your monthly volume. Tube quantities are stocked.
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Repair shops stocking MUR1620CTR rectifiers by the tube? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.
Buying in bulk for a mining farm or repair shop?
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