Datasheet

cui.com
date 11/07/2014 │ page 2 of 30CUI Inc │ SERIES: NQB-N │ DESCRIPTION: FULLY REGULATED ADVANCED BUS CONVERTERS
Nominal Output Voltage:
A = 12.0 V
B = 12.45 V
C = 9.6 V
D = 9.0 V
E = 5.0 V
PART NUMBER KEY
NQB- XXX N X X - X X X X - XXX -ES X
Input Voltage Range:
W = wide (36~75 V)
M = medium (40~60 V)
Firmware Conguration:
000~ZZZ
Base Number
Design Output Power:
1~999
Example part number: NQB-420NWA-AN-001
420 W output power, no digital pins
wide input voltage range, 12.0 V output
5.33 mm pins, negative enable logic
rmware revision 001
No Digital Interface
Load Sharing Function:
D = Vout droop
Pin Description:
A = 5.33 mm (0.210 in.)
B = 4.57 mm (0.180 in.)
C = 3.69 mm (0.145 in.)
D = 2.79 mm (0.110 in.)
S = SMT
Enable Logic Sense:
N = negative logic
P = positive logic
Heatsink Option:
"blank" = open frame
H = heatsink at
G = heatsink with GND pin
Engineering Sample:
ES
Engineering Phase:
A~Z
Packaging:
20 converters(through hole pin)/tray, PE foam dissipative
20 converters(surface mount pin)/tray, Antistatic PPE
CONTENTS
Part Number Key........................................................2
General Information...................................................3
Safety Specication....................................................3
Absolute Maximum Ratings..........................................4
EMC Specication.........................................19
Operating Information...................................19
Thermal Consideration..................................21
Connections............................................22
Mechanical Information.................................23
Soldering Information...................................26
Delivery Package Information.........................27
Product Qualication Specication...................29
Electrical Specication:
12 V, 35 A, 420 W, 36~75 Vin; NQB-420NWA-AN....................5
12 V, 39 A, 468 W, 40~60 Vin; NQB-468NMA-AN..................9
12.45 V, 35 A, 415 W, 36~75 Vin; NQB-415NWB-AN............13
12.45 V, 39 A, 462 W, 40~60 Vin; NQB-420NMB-AN............16
For more information, please visit the product page.