1.8S7BT_D3 series
1.8W - Dual Output - Wide Input - Isolated & Regulated
IGBT dedicated DC-DC converter
DC-DC Converter
1.8 Watt
The 1.8S7BT_D3 Series are DC-DC converters for IGBT drivers. Their ultra low
isolation capacitance can improve the capability of anti-interference. The built-
in common-ground mode of the unique asymmetric voltage output mode redu-
ces the driver loss of IGBT driver. They feature short-circuit protection and auto-
recovery, and can be widely used in:
Efficiency up to 80%
Temperature range:
-40°C~+105°C
Dual Output Voltage
3000VAC isolation voltage
Short circuit protection (SCP)
Ultra low isolation capaci-
tance
Ultra Compact SIP package
Good temperature
characteristic
RoHS Compliance
IGBT dedicated regulated
DC-DC converter
• General inverter
• AC servo drive system
• Electric welding machine
• Uninterruptible power supply (UPS)
No-load operation allowed
UL-60950-1 (E347551)
Common specifications
Short circuit protection:
Temperature rise at full load:
Cooling:
Input specifications
Continuous, automatic recovery
30°C TYP, 40°C MAX (Ta=25°C)
Free air convection
Item
Test condition
Min
Typ
Max
Units
Input voltage
• 1.8S7BT_121508_D3P
• 1.8S7BT_121509_D3P
• 15VDC
-0.7
-0.7
-0.7
-0.7
15
13
16
26
VDC
VDC
VDC
VDC
• 24VDC
Operation temperature range:
Storage temperature range:
Lead temperature
-40°C – +105°C
Hot plug
Unavailable
Capacitor
-55°C – +125°C
Input filter
300°C MAX, 1.5mm from case for 10 sec
< 95%
Storage humidity range:
Case material:
Isolation specifications
Item
Black flame-retardant and
heat-resistant plastic [UL94-V0]
Test condition
Min
Typ
6.6
Max
Units
VAC
MTBF:
>3,500,000 hours
4.3g
Isolation voltage
Input-Output, tested
for 1 minute and
leakage current less
than 1mA
3000
Weight:
EMC specifications
Isolation resistance
Input-Output, test at
500VDC
1000
MΩ
pF
EMI
EMI
EMS
CE
CISPR22/EN55022
CLASS B (External Circuit Refer to
EMC recommended circuit)
Isolation capacitance Input/Output,
100KHz/0.1V
RE
CISPR22/EN55022
CLASS B (External Circuit Refer to
EMC recommended circuit)
Example:
1.8S7BT_121509D3P
1.8 = 1.8 Watt; S7 =SIP7; BT= IGBT Serie; 12 = 12Vin;
ESD
IEC/EN61000-4-2
perf. Criteria B
Contact 8KV
15 = +15Vout; 09 = -9Vout; D = Dual Output; 3 = 3kVAC;
P = Short Circuit Protection (SCP)
Part Number
Input Voltage
(Range)
[V]
Input current full load/
no load [mA, typ]
Output Voltage
[VDC, +Vo/-Vo]
Output current
[mA, +Vo/-Vo]
Max. capacitive
load [µF]
Efficiency
[%, typ]
1.8S7BT_121508_D3P
1.8S7BT_121509_D3P
1.8S7BT_151509_D3P
1.8S7BT_1509_D3P
1.8S7BT_150909_D3P
1.8S7BT_151709_D3P
1.8S7BT_241509_D3P
12 (9-15)
223/20
162/20
130/20
84/20
84/20
143/20
81/20
+12/-8.0
+15/-8.7
+15/-8.7
+9/–
+100/-80
+80/-40
+80/-40
+111/–
220
220
220
220
220
220
220
80
80
80
80
80
80
80
12 (11.6-12.4)
15 (14.5-15.5)
15 (14.5-15.5)
15 (14.5-15.5)
15 (14.5-15.5)
24 (23.3-24.7)
+9/-9
+55/-55
+80/-40
+80/-40
+17/-8.7
+15/-8.7
Page 1 of 4
1.8S7BT_D3 – Rev. 2020-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com