Measurement Computing DBK33 - Manual (Page 4)

DBK33, pg. 4 879795 DBK Option Cards and Modules
DBK33’s J1B Terminal Block
Terminal block J1B has one positive (+) and one negative (-) screw terminal. The terminal block power
connection is available for use as an alternative to using a DIN5 connector. As indicated in the block
diagram on page 1 of this section, all three connectors are in parallel, i.e., the two DIN5 connectors and the
JB1 terminal block.
DBK33 - Specifications
Name/Function: Triple-Output Power Supply Card
Isolation, Input to Output: 500 VDC
Output Voltages:
+15 VDC nominal @ 250 mA
-15 VDC nominal @ 250 mA
+5 VDC nominal @ 1000 mA
Line Regulation: 0.2% max (+5 V); 5% max (±15 V)
Load Regulation: 0.5% max (+5 V); 5% max (±15 V)
Total Output Power: 15 VA (full load)
Input Voltage Range: 9 to 18 VDC
Included AC Adapter: 15 VDC @ 0.9 A
Size: 209 mm x 19 mm x 82 mm (8-1/4 “ x 3/4" × 3-1/4")
Full-Load Efficiency: 80% Typical
Full-Load Input Current Range:
2.10 A @ 9VDC
1.05 A @ 18 VDC
Input Connections: DIN5 (×2 for daisy-chaining)
Output Connection: DB37 Male
Parallel Provision: OR-ing diodes on output lines allow use of multiple DBK33s in larger systems
Controls: ON/OFF rocker-arm switch
Indicators: LED driven by input voltage
Over-Voltage Protection: Fuse followed by 19 V zener clamp
Switching Frequency: 100 kHz min
Operating Temperature Range: -20 to 70°C
Input Fuse: 3 A (Littelfuse 251003)