The zener diode is operating as a normal diode when forward biased, to the device to cause the zener breakdown current can increase rapidly in a particular voltage when reverse voltage is applied, the configuration of the constant voltage source less the change in the terminal voltage changes in the reverse current widespread is applied to.

| Part No | Package | PKG Standard | PKG dimension W x L x H (mm)  | 
                     Schematic | Vrwm(V) | IR Max(㎂) | Vbr Min(V) | Cj Max(pF) | Zener Impednace(Ω) | Remark | 
|---|---|---|---|---|---|---|---|---|---|---|
| RDP2011 | P-0806 | SOD-923 | 1.0 x 0.6 x 0.4 | ![]()  | 
                     10 | 1 | 11 | 25 | ||
| RDP2021 | P-0806 | SOD-923 | 1.0 x 0.6 x 0.4 | ![]()  | 
                     9 | 0.5 | 11.4 | 30 | - | |
| RDP2031 | P-1712A | SOD-323F | 2.5 x 1.2 x 0.7 | ![]()  | 
                     - | 5 | 5.2 | 275 | 7 | |
| RDP2041 | P-1712A | SOD-323F | 2.5 x 1.2 x 0.7 | ![]()  | 
                     36 | 0.1 | 38 | 20 | 
