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參數資料
| 型號： | QKS48T21120-PCCS1G |
| 廠商： | POWER-ONE INC |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 252 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT PACKAGE-5 |
| 文件頁數： | 1/9頁 |
| 文件大小： | 271K |
| 代理商： | QKS48T21120-PCCS1G |
MCD10089 Rev. 1.1, 8-Oct-08
Page 1 of 9
www.power-one.com
QKS48T21120 DC-DC Bus Converter Data Sheet
Quarter-Brick with 48VDC Input; 12VDC @ 21A Output
Applications
Power systems utilizing Intermediate Bus
Architecture
Networking equipment
Data/voice processing
Wireless communications
Computing
ATCA
Benefits
Simplifies power system design; reduces design
time and technical risk
Compatible with all (12 Vin nom.) POLs available in
the market
Features
RoHS lead free solder and lead solder exempted
products are available
Loosely regulated output
High output power of 252 W
Efficiency to 94%
Wide-input voltage range from 36 to 75 VDC
100V/100ms input voltage surge withstand
Input-to-output isolation: 1500 VDC
Basic insulation
Backdrive protection
Start-up into pre-biased load
Output overcurrent protection
Output overvoltage protection
Overtemperature protection
Remote on/off (primary referenced), positive or
negative logic option
Designed to comply with NEBS GR-1089 and GR-63
Safety: UL60950-1, CSA C22.2 No. 60950-1,TUV
EN60950-1, IEC60950-1
Description
The QKS is a high density and highly efficient, isolated DC-DC converter that operates over an input voltage range
of 36 VDC to 75VDC. It provides a 12 VDC nominal, loosely-regulated output voltage at up to 21 ADC of current.
The converter is an ideal choice for building a complete power system utilizing the Intermediate Bus Architecture
(IBA). The thermally-optimized construction of the QKS allows the converter to provide high output current over a
wide operating temperature range while maintaining a safe guardband for component electrical and thermal
ratings. The QKS employs 100% surface-mount components for consistency and reliability in the production
process.
Model Selection
Model
Input
Voltage
VDC
Input
Current,
Max ADC
Output
Voltage
VDC
Output Rated
Current I
rated
ADC
Output
Ripple/Noise,
mV p-p
Typical
Eff.@ 75%
I
rated
, 40C,
48Vi
%
94
QKS48T21120
35-75
7.5
12
(NOM.)
21
120
(NOM.)
Model numbers highlighted in yellow or shaded are not recommended for new designs.
The QKS48T21120 is not recommended for new designs. Please refer to the
QME48T20120 data sheet for a similar product.
.
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