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• All specifications are subject to change without notice.
DC to DC Converters
Distributed Power Supplies for Systems, Insulation Type
Quarter Brick Type iQB/iQC Series
Power supply systems for infrastructure devices used in communi-
cation networks primarily use brick-type DC to DC converters.
As the voltage used for LSIs continues to drop, power supplies are
expected to provide lower output, higher efficiencies, and lower
noise levels.
To meet these demands, we have developed quarter brick types
that is smaller in size and produce low output voltage.
FEATURES
• Wide input voltage range (DC.36 to 75V or DC.18 to 36V)
• There are 21 models in the lineup of products with low output
voltages (1.2 to 5V).
• High efficiency: 90%(3.3V and 5V output)
• Heat sink is not required.
• Remote ON-OFF function
• Output voltage external variable function
• Remote sensing function
• Various protective functions
• Two shapes: SMD and lead pin types
• Low height power supplies (Height: 8.1mm)
PRODUCT IDENTIFICATION
(1) Type name
Quarter brick type
iQB: Lead pin
iQC: SMD
(2) Rated input voltage
(3) Output current
(4) Output voltage
(5) Option code
iQB type
015: Standard(Negative on/off logic, Pin length: 5.08mm,
Overvoltage protection shutdown type)
000: Positive on/off logic, Pin length: 3.68mm,
Overvoltage protection automatic recovery type
001: Negative on/off logic, Pin length: 3.68mm,
Overvoltage protection automatic recovery type
002: Positive on/off logic, Pin length: 2.79mm,
Overvoltage protection automatic recovery type
003: Negative on/off logic, Pin length: 2.79mm,
Overvoltage protection automatic recovery type
004: Positive on/off logic, Pin length: 5.08mm,
Overvoltage protection automatic recovery type
005: Negative on/off logic, Pin length: 5.08mm,
Overvoltage protection automatic recovery type
011: Negative on/off logic, Pin length: 3.68mm,
Overvoltage protection shutdown type
iQC type
001: Standard(Negative on/off logic)
000: Positive on/off logic
PART NUMBERS AND RATINGS
iQB 48 015A 018V -
(1) (2) (3) (4) (5)
Output voltage(V) Current(A) Part No.
Lead pin type
1.2 25 iQB48025A012V
1.5 25 iQB48025A015V
1.8 15 iQB48015A018V
1.8 25 iQB48025A018V
2.5 10 iQB48010A025V
2.5 20 iQB48020A025V
3.3 10 iQB48010A033V
3.3 20 iQB48020A033V
5 8 iQB48008A050V
5 15 iQB48015A050V
Supports 24V input
3.3 15 iQB24015A033V
SMD type
1.2 25 iQC48025A012V
1.5 25 iQC48025A015V
1.8 15 iQC48015A018V
1.8 25 iQC48025A018V
2.5 10 iQC48010A025V
2.5 20 iQC48020A025V
3.3 10 iQC48010A033V
3.3 20 iQC48020A033V
5 8 iQC48008A050V
5 15 iQC48015A050V