Features of CQHS2504850
• Compact DC-DC Converter, "BRICK SIZE" which has been standard size for Telecommunication Market• High efficiency
• High density
• High reliability: not built-in aluminum and tantalum electrolytic capacitor
• Built-in overcurrent, overvoltage and thermal protection circuits
• Built-in remote ON/OFF
Ordering Information and Options
CQH(1) S(2) 250(3) 48(4) 50(5) - □(6)
(1) Series name(2) Single output
(3) Output wattage
(4) Input voltage
48: DC36 - 76V
(5) Output voltage
(6) Optional
R: with Remote ON/OFF
Positive logic control
N: Auto restart in protection circuit working
B: BasePlate option with Mounting hole M3
L2: Pin length 5.3mm
Specification
| Contents | Specifications | |
|---|---|---|
| Input Voltage | DC36 - 76V | |
| Output | Wattage | 250W |
| Voltage/Current | 50V 5.0A | |
| Adjustable Voltage Range |
Fixed (TRM pin open), adjustable by external resistor 45.0 - 55.0V |
|
| Protection Circuit And Others | Overcurrent Protection | Works over 105% of rating, low voltage protection (shut down) function is built-in. |
| Overvoltage Protection | 56.50 - 67.50V | |
| Remote ON/OFF | Provided (Negative logic L: ON, H: OFF) | |
| Remote Sensing | Provided | |
| Others | - | |
| Operating Temperature/Humidity | -40 to +85℃, 20 to 95%RH (Non condensing) * | |
| Safety And Noise Regulations | Agency Approvals (At only AC input) | UL60950-1, C-UL (CSA60950-1) , EN62368-1 |
| Conducted Noise | - | |
| High Attenuation | - | |
| Others | Dimensions (WxHxD) |
57.9x10.5x22.76mm [2.28x0.41x0.9 inches] 58.4x12.7x23.26mm [2.3x0.5x0.92 inches]*(BasePlate Option) |
| Weight |
30g max 45g max * |
|
| Cooling Method | Convection/Forced air/Conduction | |
| Warranty Period | 5-year | |
- * For further information and how to use, please see in Cosel product catalog.
Documents Download
| Technical Data | ||
|---|---|---|
| CAD Data | DXF | |
- * For another documents aren't listed, please feel free to contact to a Cosel representative.

