© 2022
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WLD SERIES LASER DIODE DRIVERS
MECHANICAL SPECIFICATIONS
WLD33ND LASER DIODE DRIVER
with heatsink and fan
with heatsink
0.86
[21.8]
0.600
[15.24]
Sym.
0.100
[2.54]
WLD33ND
BOTTOM VIEW
0.01
[0.3]
0.31 [7.9]
0.48
[12.2]
0.40 [10.2]
0.07 [1.8]
1.30
[33.0]
0.900
[22.86]
0.600
[15.24]
0.100
[2.54]
1.30
[33.0]
0.20
[5.1]
1.26
[32.0]
0.33
1.28
[32.5]
0.945 [24.00]
0.945
[24.00]
4 PLS
4-40 UNC-2B
PCB FOOTPRINT
0.125 [3.18] Thru
0.25 [6.4] DIA KEEPOUT
4 Required
0.040 [1.02] Dia Thru Hole
0.060 [1.52] Dia Pad
14 Required
0.023 [0.58]
0.023 [0.58]
0.900 [22.86]
0.945 [24.00] SQ.
0.175 [4.45]
0.100 [2.54]
WLD33ND ASSEMBLED WITH HEATSINK & FAN
All Tolerances ±5% unless noted; units in inches [mm]
The WLD33ND can be installed in a socket
soldered to a PCB. Two 7-pin SIP sockets
are required. Wavelength recommends
Sullins, PPPC071LFBN-RC Socket.
WEIGHTS
WLD33ND
0.6 oz
WHS302 Heatsink
0.5 oz
WXC 303/4
0.3 oz
PIN DIAMETER: 0.032”
PIN LENGTH: 0.210”
PIN MATERIAL: Phospher Bronze Alloy
HEAT SPREADER: Nickel Plated Aluminum
PLASTIC COVER: LCP Plastic
ISOLATION: 1200 VDC any pin to case
THERMAL WASHER: WTW002
HEATSINK: WHS320
FANS: WXC303 (+5 VDC)
or WXC304 (+12 VDC)
Actual fan wire configuration may be
different than shown.
Fan can be rotated on the WLD so the
location of the wires matches your PCB
layout.
Screw: 4-40 PHPH
(×0.75” w/o fan)
(×1.0” w/ fan)
Fan: 30 mm
WXC303 (+5 VDC) or
WXC304 (+12 VDC)
WHS302
Heatsink
WTW002
Thermal Washer
WLD33ND
Air Flow
Heat Spreader
Screw: 4-40 PHPH
(×0.75” w/o fan)
(×1.0” w/ fan)
Fan: 30 mm
WXC303 (+5 VDC) or
WXC304 (+12 VDC)
WHS302
Heatsink
WTW002
Thermal Washer
WLD33ND
Air Flow
