EK19
EK19U Rev F
3
PARTS LIST
ASSEMBLY
1. See Figure 2. Insert and solder the TransZorb diodes at D3 and D4 (440V).
2. Insert and solder the disc bypass capacitors at C1 and C2.
3. Insert the HS27 heatsink and solder the solderable studs from the opposite side of the PCB.
4. Add banana jacks as necessary to complete connections to external circuits and power supplies.
5. Insert the amplifier into the PCB mounting holes located in the space between the heatsink fins. Do not
solder the pins at this time.
6. Hang the TW13 thermal washer near the end of a 6-32 X 3/8" screw. Slightly pull the amplifier away from
the heat sink face. Use the screw to position the thermal washer behind the amplifier and insert the
screw into the mounting hole of the heatsink. Use a 6-32 nut to secure the screw from the opposite side
of the heatsink. It is important that the entire back surface of the amplifiers mounting tab be in contact
with the heatsink. Adjust the amplifiers position and tighten the mounting screw as necessary for this to
be so.
7. Solder the amplifiers pins to the PCB.
8. Add other passive components as necessary to complete your circuit.
9. Most common configurations will ground the non-inverting pin of the amplifier. J1 is a convenient way to
do this if necessary for your application circuit.
10. The four holes at the corners of the circuit board are for mounting #6 standoff spacers if desired.
11. R1-R5 are multiple feedback resistors in series. Commonly available resistors do not have a breakdown
voltage sufficient to stand off the output voltage of the amplifier. Using multiple resistors will divide down
the voltage that each resistor must withstand.
Reference
Manufacturer Part # Description
QTY
HS27
Heatsink
1
EVAL23
PC Board
1
TW13
Thermal Washer
1 Box (10 each)
D
3
, D
4
P6KE440A
TransZorb
2
C
1
, C
2
C322C103JDRA5TA
Capacitor 0.01µF 1kV
2
