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| Cathode Comparison |
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At Blackburn MicroTech Solutions we provide a full range of cathodes for all CRT applications.
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I-Cathode |
Cermet |
Oxide |
| Base Material |
W |
Ni |
Ni |
| Emitting surface |
Ba-O-OsRu |
Ba-BaSrO |
Ba-BaSrO |
| Work function |
1.8 eV |
1.1 eV |
1.1 eV |
| Cathode Temperature |
1030 oC |
805 oC |
805 oC |
| Current density |
8 A/cm2 |
3.5 A/cm2 |
2.2 A/cm2 |
| Power |
0.65 W |
0.65 W |
0.65 W |
| Nominal Heater Current |
105 mA |
105 mA |
105 mA |
| Nominal heater Voltage |
6.3 V |
6.3 V |
6.3 V |
| Cathode Constructions Available |
Module Only |
Module & Suspended |
Module & Suspended | |
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