Datasheet
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DC/DC Converter TEQ 300WIR Series, 300 Watt
Models
• High power block with excellent
thermal convection
• Operating temperature -40°C to +80°
• Increased shock & vibration resistance
• Ultra wide 4:1 input voltage range
• EN 50155 approval for railway
applications
• Excellent efficiency up to 92%
• Constant current output characteristic
for battery load applications
• Power sharing (up to 3 pcs in parallel)
• Input filter meet EN 55022, class A
• I/O isolation 3000 VDC
• Infinite capacitive load
• Under voltage lock-out circuit
• Soft start
• Input protection filter
The TEQ-300WIR Series is a family of isolated high performance dc-dc conver-
ter modules with ultra-wide 4:1 input voltage ranges which come in a rugged,
sealed metal case.
These converters are suitable for a wide range of applications, but the product is
designed particularly also for industrial applications where often no PCB moun-
ting is possible but the module has to be mounted on a chassis. A very high
efficiency and the overall heatsink construction allows an operating temperature
up to +55°C with natural convection cooling without power derating and up to
+80ºC with power derating. Further features include output voltage trimming,
Remote On/Off and under voltage lockout. The ultra wide input voltage range
and reverse input voltage protection make these converters also an interesting
solution for battery operated systems.
Order code Input voltage Output voltage Output current max. Efficiency typ.
TEQ 300-4812WIR
12 VDC 25 A 89 %
TEQ 300-4815WIR 18 - 75 VDC*
24 VDC 12.5 A 92 %
TEQ 300-4816WIR (nominal 48 VDC)
28 VDC 10.8 A 91 %
TEQ 300-4818WIR
48 VDC 6.3 A 92 %
TEQ 300-7212WIR
12 VDC 25 A 89 %
TEQ 300-7215WIR 43 - 160 VDC
24 VDC 12.5 A 91 %
TEQ 300-7216WIR (nominal 110 VDC)
28 VDC 10.8 A 91 %
TEQ 300-7218WIR
48 VDC 6.3 A 92 %
Models
* below 24 Vin a derating of 3.3 %/V has to be applied (see page 3)