IRE-Q12 Series
120W Encapsulated Eighth-Brick EN50155-Compliant
Wide 4:1 Input Isolated DC-DC Converters
Output Voltage (Vdc) Output Current (A) Input Voltage Range (Vdc)
5 24 9-36
12 10 9-36
24 5 9-36
Typical Unit
PRODUCT OVERVIEW
FEATURES
High efficiency synchronous forward
The IRE-Q12 Series of isolated DC-DC converters feature a single 120W isolated output, from an input
topology.
voltage range of 9V 36V DC in a fully enclosed package with industry standard eighth-brick
9 36 Volts DC wide input range.
package and footprint. Two base plate options are available, one for minimal board space
consumption, the other flanged, slotted for mechanical fixing to a heatsink surface. Positive or
5/12/24 V, up to 120 W total output power.
Negative Logic On/Off control is also available.
Standard and Flanged baseplate options.
The IRE-Q12 Series is ideal for applications in the Railway/Industrial/Transportation area, designed to
accept input from 12V or 24V nominal battery voltages. The IRE output can be trimmed +/-10% while
Industry standard 1/8 brick format & pinout.
delivering fast settling times to transient step loads and demonstrates no adverse effects from higher
Extensive self-protection features, including
capacitive loads. The IRE incorporates all relevant self-protection features including under-voltage
over-temperature shutdown.
lockout, current limit, short circuit protection and over temperature shutdown.
Small footprint DC-DC converter, ideal for
high current applications.
Meets AREMA for 2828Vdc isolation.
Temperature range -40 to 85C.
UL/EN 60950-1 safety approvals.
Flanged Baseplate Option
Standard Baseplate Option
SAFETY FEATURES
2000VAC I/O Isolation, Basic insulation.
UL 60950-1, 2nd edition.
CAN/CSA C22.2 NO.60950-1.
EN 60950-1.
RoHS compliant.
For details go to
www.murata-ps.com/rohs
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SDC_IRE_Q12_Series.A01 Page 1 of 18 IRE-Q12 Series
120W Encapsulated Eighth-Brick EN50155-Compliant
Wide 4:1 Input Isolated DC-DC Converters
PERFORMANCE SPECIFICATIONS SUMMARY AND ORDERING GUIDE
Output Input
Package
Efficiency
Root Model
(w/o flange)
R/N (mV pk-pk) Regulation (max.)
Vout Iout Power Vin Nom. Range Iin, no load Iin, full
(V) (A, max.) (W) (V) (V) (A) load (A)
Typ. Max. Line Load Min. Typ. Case (inches)
IRE-5/24-Q12 5 24 120 100 150 0.4% 0.4% 12 9-36 0.4 10.9 90% 92% 2.41 x 1.01 x 0.5
IRE-12/10-Q12 12 10 120 115 200 0.3% 0.3% 12 9-36 0.4 10.9 90% 92% 2.41 x 1.01 x 0.5
IRE-24/5-Q12 24 5 120 150 240 0.4% 0.4% 12 9-36 0.08 10.9 90% 92% 2.41 x 1.01 x 0.5
All specifications are at nominal input voltage and full load at room temperature (+25C) unless otherwise noted. See detailed specifications. Output capacitors are 1F ceramic
multilayer in parallel with 10F and the minimum requested input capacitor. I/O caps are necessary for our test equipment and may not be needed for your application.
PART NUMBER STRUCTURE
IRE 12 10 Q12 - N F - C
- / -
IRE = Industrial Rail
C = RoHS Compliant
Eighth-brick
Blank = Baseplate W/O Flange
12 = Nominal Output Voltage (Vdc)
F = Flanged Baseplate
10 = Nominal Output Current (A)
On/Off Logic:
Q12 = 4:1 Input Voltage Range
N = Negative
(9~36Vdc, Nominal 12/24V)
P = Positive
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SDC_IRE_Q12_Series.A01 Page 2 of 18