|
![]() |
![]()
![]()
![]() |
SM Series (SM1275)
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Features | |
| Meets DC Input Transient Limits For MIL-STD-704A | |
| Transient | 80 Vdc for 0.1 seconds |
| Spike | 600 Vdc for 10 µS |
| Meets DC Input Transient
Limits For MIL-STD-1275A |
|
| Transient | 100 Vdc for 100 mS |
| Spike | ±250 Vdc for 50 µS |
| How To Order | |
| Series: | SM1275 |
| Options: | -C |
| Options: | A- pins out
baseplate of unit C- thru hole inserts (0.140 DIA) I- metric inserts (M3) |
| Standard unit is 28 Vdc nominal input with pins out the top written as: SM1275 | |
| Specifications, 28 Vdc Input | ||||
| Min | Typ | Max | Units | |
|---|---|---|---|---|
| Steady State Input | 14 | 40 | Vdc | |
| Output Current | 20 | A | ||
| Output Voltage (clamp) | 50 | Vdc | ||
| Fuse (recommended - slow blow) | 22 | Adc | ||
| Insertion Loss (@ 20 A and 25oC) | 1 | Vdc | ||
| Input Surge Limit (for 0.1 sec, 0.5) | 100 | Vdc | ||
| Input Spike Limit (for 50 µS, 15mJ) | +250 | Vdc | ||
| Input Spike Limit (for 10 µS, 50) | 600 | Vdc | ||
| Reverse Polarity | Shunt Diode (input fuse required) | |||
| No Load Power Dissipation | 2.5 | Watt | ||
| Converters Only Specifications, 28 Vdc Input | ||||
| Min | Typ | Max | Units | |
|---|---|---|---|---|
| Efficiency | 90 | 97 | % | |
| Operating Temperature | -55 | 100 | oC | |
| Storage Temperature | -55 | +125 | oC | |
| Isolation:
Input/Output to Case |
500 | Vdc | ||
| Insulation Resistance (@50 Vdc) | 50 | MOhm | ||
| Size | 2.4 x 2.3 x 0.5 | inch | ||
| 61 x 59 x 13 | mm | |||
| Weight | 4.5 | oz | ||
| 130 | grams | |||
| Environmental | MIL-STD-810C | |||