Input:
Output:
35-75 V
1.8 V
Current:
Package:
40 A
Quarter-brick
Technical Specification
MECHANICAL
2.30
(58.4)
DIAGRAM
0.14
(3.6)
2.00
(50.8)
0.300
(7.62)
0.150
(3.81)
0.43
(10.9)
0.300
(7.62)
1.45
(36.8)
0.450
0.600
(11.43)
0.600
(15.24)
(15.24)
Top View
0.43
(10.9)
Bottom side
Clearance
See Note 9
Side View
0.060+.022/-.032
(1.52+.56/-.81)
Lowest
Flanged Pin
See Note 10
Component
Load Board
0.145
(3.68)
See Note 3
NOTES
PIN DESIGNATIONS
1) Pins 1-3, 5-7 are 0.040” (1.02mm) diameter with
0.080” (2.03 mm) diameter standoff shoulders.
Pin No. Name
Function
1
2
Vin(+)
Positive input voltage
2) Pins 4 and 8 are 0.062” (1.57 mm) diameter with 0.100”
(2.54 mm) diameter standoff shoulders.
ON/OFF
TTL input to turn converter
on and off, referenced to
Vin(-), with internal pull up.
3) Other pin extension lengths available. Recommended pin
length is 0.03” (0.76mm) greater than the PCB thickness.
4) All Pins: Material - Copper Alloy
Finish - Tin/Lead over Nickel plate
3
4
5
6
7
8
Vin(-)
Vout(-)
SENSE(-)
TRIM
SENSE(+)
Vout(+)
Negative input voltage
Negative output voltage
Negative remote sense1
Output voltage trim2
Positive remote sense3
Positive output voltage
5) Undimensioned components are shown for visual reference
only.
6) All dimensions in inches (mm)
Tolerances: x.xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 in. (x.xx +/-0.25mm)
7) Weight: 1.5 oz. (42 g) typical
8) Workmanship: Meets or exceeds IPC-A-610C Class II
Notes:
9) UL/TUV standards require a clearance greater than 0.04”
(1.02mm) between input and output for Basic insulation. This issue
should be considered if any copper traces are on the top side of
the user’s board. Note that the ferrite cores are considered part of
the input/primary circuit.
10) The flanged pins are designed to permit surface mount sol-
dering (avoiding the wave soldering process) through the use
of the flanged pin-in-paste technique.
1. SENSE(-) may be connected to Vout(-) either remotely or at the converter.
2. Leave TRIM pin open for nominal output voltage.
3. SENSE(+) may be connected to Vout(+) either remotely or at the converter.
Product # PQ60018QTA40
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2QT618C Rev. C
09/08/05
Page 2
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