30 amp surge. Type: 1N4004. Peak Inverse Voltage (PV): 400.
- Peak Reverse Voltage: 400V (Max)
- DC Blocking Voltage: 400VDC (Max)
- Forward Rectified Current: 1A
- Silicon Rectifier
- Diffused junction
- Maximum Average Forward Voltage Drop: VF= 0.8 Volts
- Non-repetitive Peak Surge Current: IFSM= 30 amps for 1 cycle
- Maximum Reverse Current @ 25 degrees C: IR= 10uA
http://www.radioshack.com/1n4004-micro-1-amp-rectifier-diode/2761103.html#.VPTV4RF0yUk&tab=tab1