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| FEATURES |
 Over Temperature
Protection Remote Turn On (TTL) Output Overvoltage Protection Output Overcurrent Protection 100% Envirnomental Screening (M
Version) Remote Sense |
| HOW TO ORDER: |
|
| HOW TO ORDER | |
| Series: | NW |
| Total Output Power: | 25 Watts |
| Output: | "S" for Single |
| Product Grade: | "M" for Screened "I" for Industrial |
| Output Voltage: | 2/3.3/5/5.2/9/12/15/24/28 |
| Options: | A/I/F (see table below) |
| OPTIONS | |
| Standard | Pins out top of unit |
| A Option: | Terminal Block |
| I Option: | M.25 inserts |
| F Option: | EMI Filter - internal |
| SELECTION CHART | |||
| Nominal Output (Vdc) | Output Current (Amps) | Model Number (Unscreened) | Model Number (Screened) |
|---|---|---|---|
| 2.0 | 5.0 | NW25SI/2 | NW25SM/2 |
| 3.3 | 5.0 | NW25SI/3.3 | NW25SM/3.3 |
| 5.0 | 5.0 | NW25SI/5 | NW25SM/5 |
| 5.2 | 4.8 | NW25SI/5.2 | NW25SM/5.2 |
| 9 | 2.8 | NW25SI/9 | NW25SM/9 |
| 12 | 2.1 | NW25SI/12 | NW25SM/12 |
| 15 | 1.66 | NW25SI/15 | NW25SM/15 |
| 24 | 1.1 | NW25SI/24 | NW25SM/24 |
| 28 | 0.9 | NW25SI/28 | NW25SM/28 |
| INPUT CHARACTERISTICS | ||||
| Min | Typ | Max | Units | |
|---|---|---|---|---|
| Input Voltage | 90 | 110 | 130 | Vac |
| 120 | 150 | 184 | Vdc | |
| Brown out (75% of Full Load) | 80 | Vac | ||
| No Load Power Dissipation | 1.0 | 1.5 | Watt | |
| Inrush Current | 15 | A | ||
| Logic Disable Current (Sink) | 5 | 6 | mA | |
| Logic Disable Power in | 1.0 | 1.5 | Watt | |
| Efficiency at Full Load | 75 | 80-86 | % | |
| Efficiency 3.3Vdc Output | 70 | 74 | % | |
| Efficiency 2 Vdc Output | 60 | 65 | % | |
| Power Factor (110 Vac,60Hz) | ||||
| Half Load Full Load |
0.55 0.59 |
|||
| EMI | Units conform to MIL-STD-461D (on input leads) with optional filter (-F) |
| Input Transient | Units can withstand 180 Vac transients for up to 0.1 sec. |
| OUTPUT CHARACTERISTICS | ||||
| Min | Typ | Max | Units | |
|---|---|---|---|---|
| Set Point Accuracy | 1* | % Vout | ||
| Load Regulation | 0.1 | 0.2 | % Vout | |
| Line Regulation | 0.1 | 0.2 | % Vout | |
| Ripple P-P (10 MHz) | 50 | 150 | mV | |
| Remote Sense Compensation | 0.5 | Vdc | ||
| Overvoltage Protection | 125 | % Vout | ||
| Transient Response (Vout 1%) Time/Overshoot | ||||
| 20-80% Load | 500/300 | µS/mV | ||
| Low Line - High Line | 500/300 | µS/mV | ||
| 50%-100% Load | 500/300 | µS/mV | ||
| Temperature Drift | 0.01 | 0.02 | %/oC | |
| Long Term Drift | 0.01 | %/1KHrs | ||
| Current Limit | 130 | % Iout | ||
| Short Circuit Current | 50 | % Iout | ||
| Turn On Time | 200 | mS | ||
| Logic Turn On Time | 3 | mS | ||
| TEMPERATURE CHARACTERISTICS | ||||
| Min | Typ | Max | Units | |
| Operating | -40 | +90 | oC | |
| Storage - Ambient | -55 | +115 | oC | |
| Over Temperature Shutdown | +95 | oC | ||
| Thermal
Resistance Case- Ambient |
5 | oC/W | ||
| M- GRADE - ENVIRONMENTAL SCREENING | |
| Stabilization Bake | +115 °C for 24 hours similar to Mil-Std-883, M1108, Condition B |
| Temperature Cycling | 10 cycles at -55 °C to +115 °C (transition period 5 °C /min.)similar to Mil-Std-883, M1010, Condition B |
| Burn in | 160 hours @ 75 °C minimum. |
| Final Testing | |
| I- GRADE - ENVIRONMENTAL SCREENING | |
| Burn in | 16 hours @ +75 °C minimum. |
| Final Testing | |
| ISOLATION CHARACTERISTICS | ||
| Min | Units | |
| Isolation | ||
| Input to Output | 500 | Vdc |
| Output to Base | 500 | Vdc |
| Input to Base | 500 | Vdc |
| Insulation Resistance @ 50Vdc | 50 | MOhm |
| MECHANICAL CHARACTERISTICS | |
| Weight | 14.4 oz. 408.2 grams |
| Size | 3.5 x 2.5 x
1.13
inch 88.9 x 63.5 28.4 mm |
| Volume | 9.89 inch3 160.3 cm3 |
| Material | 24GA CRS |
| Finish | Nickel Plating |
| Mounting | 4-40 Inserts |
All specifications are typical at +25 °C with nominal
input voltages under full output load conditions, unless otherwise noted.
Specifications subject to change without notice.
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