| Model | SR-332-Issue 3 MTBF kHRs | Achieved Value (HRs) |
|---|---|---|
| 4220-12T-4X | > 350 @ 25°C | 797,257 |
| 4220-12P-4X | > 350 @ 25°C | 504,047 |
| 4220-24T-4X | > 350 @ 25°C | 765,828 |
| 4220-24P-4X | > 350 @ 25°C | 649,524 |
| 4220-48T-4X | > 350 @ 25°C | 538,051 |
| 4220-48P-4X | > 350 @ 25°C | 402,506 |
| 4220-4MW-8P-4X | > 350 @ 25°C | 402,506 |
| 4220-4MW-20P-4X | > 350 @ 25°C | 358,402 |
| 4220-8MW-40P-4X | > 350 @ 25°C | 343,085 |
| 4220-8X | > 350 @ 25°C | 570,373 |