Poke-home Connector MCPCB
with Thermistor for LZC emitter family
LZC-FxxxT1
2x6 configuration
Key Features
Poke-home connectors already mounted on the MCPCB for easy connections
1-channel configuration allows for easy driver control for LZC emitters
Very low Thermal Resistance for MCPCB adds only 0.6C/W
Zener Diodes for ESD protection
On-board thermistor for common constant current source with thermal feedback option
LuxiGen LZC Lens family (8 / 15 / 23 / 32 / 45) holders align with the MCPCB cutouts
Multiple mounting and attachment options
Description
The LZC-FxxxT1 MCPCB with two 2-pin poke-home connectors provides a convenient method to connect
LED Engins LZC emitters. One 2-pin poke-home connector supports 2 parallel strings of 6 die in series;
the second one connects the thermistor. Four recessed features allow the use of M3 or #4-40 screws to
mount the MCPCB to a heat sink. There are additional mounting holes for the complementary TIR
lenses and Zener diodes for enhanced ESD protection.
Standard Product Part Numbers
additional parts based on emitter nomenclature
LZC-F0WWT1 LZC-series, Warm White 12 die emitter mounted on connector board in 2x6
configuration with 1000k thermistor
LZC-F0NWT1 LZC-series, Neutral White 12 die emitter mounted on connector board in 2x6
configuration with 1000k thermistor
LZC-F0CWT1 LZC-series, Cool White 12 die emitter mounted on connector board in 2x6
configuration with 1000k thermistor
Thermistor Options
Part Designator Thermistor type
Resistance @ 25
Murata, PN: NCP15WF104F03RC
-T1 100k
Page | 1
LED Engin, Inc. | 651 River Oaks Parkway | San Jose, CA 95134 USA
ph +1 408 922 7200 | fax +1 408 922 0158 | em sales@LED Engin.com | www.LED Engin.com Rev. 1/12
R J-B Lookup Table
Emitter +
Emitter MCPCB
Product MCPCB
R
J-C C-B
R
J-B
LZC-Fxxxxx 0.7C/W + 0.6C/W = 1.3C/W
Note for table 1
R is the combined thermal resistance from the LED die junction to the Aluminum core on MCPCB (R R = R ).
J-B J-C + C-B J-B
Operating Temperatures:
Maximum Operation Temperature measured at Tc or thermistor: 105C
Emitter on 1-channel MCPCB Dimensions (mm)
Emitter pin
Ch. Pad Function
14, 15, 17, 18
LED1+ Anode
1
2, 3, 5, 6
LED1- Cathode
na
NTC Terminal
T
na
NTC Terminal
Note for Figure 1:
Unless otherwise noted, the tolerance = 0.2 mm. angle = 1
Slots in MCPCB are for M3 or #4-40 mounting screws. Maximum torque should not exceed 1N-m ( 8.9 lbf-in)
LED Engin recommends plastic washers to electrically insulate screws from solder pads and electrical traces.
LED Engin recommends using thermally conductive interface material when attaching the MCPCB to a heatsink
Use solid or stranded wires with gauge size, 18, 20, 22 or 24AWG. See section on Wire Insertion and Extraction for further
instructions.
Components used
MCPCB: HT04503 (Bergquist)
ESD chips: BZT52C36LP (NXP, for 6 LED dies in series)
Thermistor: NCP15WF104F03RC (Murata, 100kOhm)
Connectors: 00-9276-002-0-21-1-06 (AVX, poke-home)
Page | 2
LED Engin, Inc. | 651 River Oaks Parkway | San Jose, CA 95134 USA
ph +1 408 922 7200 | fax +1 408 922 0158 | em sales@LED Engin.com | www.LED Engin.com Rev. 1/12