型號(hào)     電流A   電壓V
1N4001     1       50
1N4002     1      100
1N4003     1      200
1N4004     1      400
1N4005     1      600
1N4006     1      800
1N4007     1     1000

4001和4007都是1A的整流二管，只不過4001只有50伏耐壓，而4007是1000伏。

反向耐壓能力，1N4001大概是25V，而1N4007有1000V

Diffused Junction
High Current Capability and Low Forward
Voltage Drop
Surge Overload Rating to 30A Peak
Low Reverse Leakage Current
Plastic Material: UL Flammability
Clification Rating 94V-0
Mechanical Data
Case: Molded Plastic
Terminals: Plated Leads Solderable per
MIL-STD-202, Method 208
Polarity: Cathode Band
Weight: DO-41 0.30 grams (approx)
A-405 0.20 grams (approx)
Mounting Position: Any
Marking: Te Number