The ZMM5221~ZMM5263 series are LL34 surface mount Zener diodes designed for various electronic applications. These diodes offer low reverse leakage, low Zener impedance, and high stability and reliability. They are suitable for any mounting position and are available in a glass case with a color band denoting the cathode end.
| Model | Zener Voltage (Vz) @ Izk (V) | Max. Zener Test Current (Izm) (mA) | Max. Zener Impedance (Zzk) @ Izl () | Max. Reverse Leakage Current (Ir) @ Vr (A) | Power Dissipation (Pd) (mW) | Forward Voltage (Vf) @ If (V) |
|---|---|---|---|---|---|---|
| ZMM5221 | 2.4 | 56 | 900 | 5 | 500 | 1.1 |
| ZMM5222 | 2.5 | 54 | 850 | 5 | 500 | 1.1 |
| ZMM5223 | 2.7 | 50 | 800 | 5 | 500 | 1.1 |
| ZMM5224 | 2.8 | 48 | 750 | 5 | 500 | 1.1 |
| ZMM5225 | 3.0 | 45 | 700 | 5 | 500 | 1.1 |
| ZMM5226 | 3.3 | 41 | 600 | 5 | 500 | 1.1 |
| ZMM5227 | 3.6 | 37 | 500 | 5 | 500 | 1.1 |
| ZMM5228 | 3.9 | 34 | 450 | 5 | 500 | 1.1 |
| ZMM5229 | 4.3 | 31 | 400 | 5 | 500 | 1.1 |
| ZMM5230 | 4.7 | 28 | 350 | 5 | 500 | 1.1 |
| ZMM5231 | 5.1 | 26 | 300 | 5 | 500 | 1.1 |
| ZMM5232 | 5.6 | 24 | 250 | 5 | 500 | 1.1 |
| ZMM5233 | 6.2 | 22 | 200 | 5 | 500 | 1.1 |
| ZMM5234 | 6.8 | 20 | 180 | 5 | 500 | 1.1 |
| ZMM5235 | 7.5 | 18 | 150 | 5 | 500 | 1.1 |
| ZMM5236 | 8.2 | 16 | 120 | 5 | 500 | 1.1 |
| ZMM5237 | 9.1 | 15 | 100 | 5 | 500 | 1.1 |
| ZMM5238 | 10 | 13 | 80 | 5 | 500 | 1.1 |
| ZMM5239 | 11 | 12 | 70 | 5 | 500 | 1.1 |
| ZMM5240 | 12 | 11 | 60 | 5 | 500 | 1.1 |
| ZMM5241 | 13 | 10 | 50 | 5 | 500 | 1.1 |
| ZMM5242 | 15 | 9.1 | 40 | 5 | 500 | 1.1 |
| ZMM5243 | 16 | 8.5 | 35 | 5 | 500 | 1.1 |
| ZMM5244 | 18 | 7.7 | 30 | 5 | 500 | 1.1 |
| ZMM5245 | 20 | 7.0 | 25 | 5 | 500 | 1.1 |
| ZMM5246 | 22 | 6.4 | 22 | 5 | 500 | 1.1 |
| ZMM5247 | 24 | 5.9 | 20 | 5 | 500 | 1.1 |
| ZMM5248 | 27 | 5.3 | 18 | 5 | 500 | 1.1 |
| ZMM5249 | 30 | 4.8 | 15 | 5 | 500 | 1.1 |
| ZMM5250 | 33 | 4.4 | 13 | 5 | 500 | 1.1 |
| ZMM5251 | 36 | 4.0 | 11 | 5 | 500 | 1.1 |
| ZMM5252 | 39 | 3.7 | 10 | 5 | 500 | 1.1 |
| ZMM5253 | 43 | 3.4 | 9.0 | 5 | 500 | 1.1 |
| ZMM5254 | 47 | 3.1 | 8.0 | 5 | 500 | 1.1 |
| ZMM5255 | 51 | 2.9 | 7.0 | 5 | 500 | 1.1 |
| ZMM5256 | 56 | 2.7 | 6.0 | 5 | 500 | 1.1 |
| ZMM5257 | 62 | 2.4 | 5.0 | 5 | 500 | 1.1 |
| ZMM5258 | 68 | 2.2 | 4.5 | 5 | 500 | 1.1 |
| ZMM5259 | 75 | 2.0 | 4.0 | 5 | 500 | 1.1 |
| ZMM5260 | 82 | 1.8 | 3.5 | 5 | 500 | 1.1 |
| ZMM5261 | 91 | 1.6 | 3.0 | 5 | 500 | 1.1 |
| ZMM5262 | 100 | 1.5 | 2.5 | 5 | 500 | 1.1 |
| ZMM5263 | 110 | 1.4 | 2.2 | 5 | 500 | 1.1 |
Note: Electrical Specification (TA=25C unless otherwise specified)