1S7B_3UP series
1W - Single/Dual Output DC-DC Converter - Fixed Input - Isolated & Unregulated
DC-DC Converter
1 Watt
The 1S7B_3UP series are specially designed for applications where an isolated
High efficiency up to 85%
3000VDC isolation
Operating temperature:
-40°C to +105°C
Industry standard pinout
IEC62368, UL62368, EN62368
approved
(two isolated) voltage is required in a distributed power supply system.
SIP package
They are suitable for: pure digital circuits, low frequency analog circuits,
relay-driven circuits and data switching circuits.
Short circuit protection (SCP)
RoHS compliance
UL-62368-1 (E347551)
Common specifications
Output specifications
Short circuit protection:
Continuous, self-recovery
Item
Test condition
Min Typ
Max
Units
Temperature rise at full load:
(Ta=25°C)
• 3.3VDC: 25°C TYP
• Others: 15°C TYP
Output voltage
accuracy
See output regulation curve
Cooling:
Free air convection
-40°C – +105°C
Line regulation
For Vin change of 1%
• 3.3V output
• Others
1.5
1.2
%
%
Operation temperature range:
Storage temperature range:
Pin soldering resistance temperature:
Storage humidity range:
MTBF (MIL-HDBK-217F@25°C):
Case material:
-55°C – +125°C
Load regulation
10% to 100% load
• 3.3VDC output
• 5VDC output
• 9VDC output
• 12VDC output
• 15VDC output
• 24VDC output
15
10
8
20
15
10
10
10
10
%
%
%
%
%
%
300°C MAX, 1.5mm from case for 10 sec
< 95%
7
>3,500,000 hours
Plastic [UL94-V0]
19.65 x 6.00 x 10.16mm
2.1g
6
5
Temperature
coefficient
100% full load
0.02
%/°C
Dimensions:
Weight:
Ripple & Noise*
20MHz Bandwidth
• 3.3V output
• Others
30
50
75
100
mVp-p
mVp-p
Input specifications
Switching frequency Full load, nominal input
270
KHz
Item
Test condition
Min Typ
270/5
Max
Units
* Ripple and noise tested with “parallel cable” method, please see DC-DC
Converter Application Notes for specific operation methods.
Input current
(no-load/full load)
• 3.3/5VDC input
• 9/12VDC input
• 15/24VDC input
286/10 mA
241/12 254/20 mA
241/18 254/30 mA
Isolation specifications
Input surge voltage
(1sec. max.)
5VDC input
-0.7
9
VDC
Item
Test condition
Min
Typ
20
Max
Units
VDC
Reflected ripple
current*
15
mA
Isolation voltage
Tested for 1 minute
and 1mA max
3000
Input filter
Hot plug
Capacitor
Isolation resistance
Test at 500VDC
1000
MΩ
pF
Unavailable
Isolation capacitance Input/Output,
100KHz/0.1V
* Reflected ripple current testing method please see DC-DC Converter Application
Notes for specific operation.
Note:
EMC specifications
1. If the product is not operated within the required load range, the product per-
formance cannot be guaranteed to comply with all parameters in the datasheet;
2. The maximum capacitive load offered were tested at input voltage range and
full load;
3. Unless otherwise specified, parameters in this datasheet were measured under
the conditions of Ta = 25°C, humidity <75%RH with nominal input voltage and
rated output load;
4. All index testing methods in this datasheet are based on our company corpo-
rate standards;
5. We can provide product customization service, please contact our technicians
directly for specific information;
EMI
EMI
EMS
CE
CISPR32/EN55032
CLASS B (see EMC recommended circuit)
RE
CISPR32/EN55032
CLASS B (see EMC recommended circuit)
ESD
IEC/EN61000-4-2
perf. Criteria B
Air 8KV, Contact 8KV
6. Products are related to laws and regulations: see „Features“ and „EMC“;
7. Our products shall be classified according to ISO14001 and related environmen-
tal laws and regulations, and shall be handled by qualified units.
Example:
1S7B_0505D3UP
1 = 1Watt; S7 = SIP7; B = Pinning; 5Vin; 5Vout; D = Dual Output;
3 = 3kVDC; U = Unregulated Output; P = Short circuit protection
Page 1 of 4
1S7B_3UP – Rev. 2020-1.1
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com