Features of CQHS3004850
• 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) 300(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
T: with Mounting hole φ3.4 thru
Specification
| Contents | Specifications | |
|---|---|---|
| Input Voltage | DC36 - 76V | |
| Output | Wattage | 300W |
| Voltage/Current | 50V 6.0A | |
| 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 +100℃ (On aluminum base plate) , 20 - 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) | 57.9x12.7x36.8mm [2.28x0.5x1.45 inches] |
| Weight | 75g max | |
| Cooling Method | Conduction cooling (e.g. heat radiation from the aluminum base plate to the attached heat sink) | |
| 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.
Optional Parts
Heat sink
| Category | Part Number | Description | DXF | |
|---|---|---|---|---|
Heat sink |
F-QB-F1 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) | - | |
| F-QB-F2 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) | - | ||
| F-QB-F3 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) | - | ||
| F-QB-F4 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) | - | ||
| F-QB-F5 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Horizontal style) | - | ||
| F-QB-F6 | Heatsink for TUNS50, CQHS300, CQHS350, DHS50, DHS100 series. (Vertical style) | - |