DC/DC Converter
TEQ 300WIR Series, 300 Watt
• 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 55032 class A
• I/O isolation 3000 VDC
• Infinite capacitive load
• Under voltage lock-out circuit
• Soft start
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 +60°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.
• Input protection filter
Models
Order code
Input voltage
Output voltage
Output current max.
Efficiency typ.
TEQ 300-4812WIR
TEQ 300-4815WIR
TEQ 300-4816WIR
12 VDC
24 VDC
28 VDC
48 VDC
12 VDC
24 VDC
28 VDC
48 VDC
25 A
12.5 A
10.8 A
6.3 A
89 %
92 %
91 %
92 %
89 %
91 %
91 %
92 %
18 - 75 VDC
(nominal 48 VDC)
Models
TEQ 300-4818WIR
TEQ 300-7212WIR
TEQ 300-7215WIR
TEQ 300-7216WIR
TEQ 300-7218WIR
25 A
43 - 160 VDC
12.5 A
10.8 A
6.3 A
(nominal 110 VDC)
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