LuxiGen™ Multi-Color Emitter Series
LZ7 Flat Lens Emitter
RGBW-Amber-Cyan-Violet
LZ7-04M100
Key Features
7-color surface mount ceramic LED package with integrated flat glass lens
Red, Green, Blue, Cool White, Amber, Cyan and Violet enables richer and wider color combination for more
sophisticated color mixing
Compact 3.8mm Light Emitting Surface (LES) and low profile package maximize coupling efficiency into
secondary optics
20W max power dissipation in a small 7.0mm x 7.0mm emitter footprint
Thermal resistance of 1.4 °C/W; up to 1.5A maximum drive current for individual die
Electrically neutral thermal path
JEDEC Level 1 for Moisture Sensitivity Level
Lead (Pb) free and RoHS compliant
Typical Applications
Stage and Studio Lighting
Effect Lighting
Accent Lighting
Display Lighting
Architectural Lighting
Description
The LZ7 flat lens emitter contains 7 different colors LED dies closely packed in a low thermal resistance package
with integrated glass window. The addition of Amber, Cyan and Violet to the traditional RGBW colors enables
richer and wider color combination for more sophisticated color mixing. The compact 3.8mm LES, low profile
package and glass window, allows maximum coupling efficiency into the zoom optics, mixing rods, light pipes and
other secondary optics. The high quality materials used in the package are chosen to maximize light output and
minimize stresses which results in monumental reliability and lumen maintenance.
Notes
This product emits Violet and Blue light, which can be hazardous depending on total system configuration
(including, but not limited to optics, drive current and temperature). Do not stare directly into the beam and
observe safety precaution given in IEC 62471 when operating this product.
COPYRIGHT © 2018 LED ENGIN. ALL RIGHTS RESERVED.
LZ7-04M100 (1.3 – 11/19/2018)
LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Part number options
Base part number
Part number
Description
LZ7-04M100-0000
LZ7 RGBW-Amber-Cyan-Violet flat lens emitter
LZ7-N4M100-0000
LZ7 RGBW-Amber-Cyan-Violet flat lens emitter on 7 channel MCPCB
Bin kit option codes
M1, Red-Green-Blue-White (6500K)-Amber-Cyan-Violet
Kit number
suffix
Min
flux
Bin
Color Bin Ranges
0000
07R
R01
26G
G2 – G3
09B
B03
16W
1V2U
10A
A01
01C
C01
01U
U56
Description
Red, full distribution flux; full distribution
wavelength
Green, full distribution flux; full
distribution wavelength
Blue, full distribution flux; full
distribution wavelength
White full distribution flux and CCT
Amber, full distribution flux; full
distribution wavelength
Cyan, full distribution flux; full
distribution wavelength
Violet, full distribution flux; full
distribution wavelength
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LZ7-04M100 (1.3 – 11/19/2018)
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Daylight White Chromaticity Group
0.40
5630K
0.39
0.38
0.37
0.36
CIEy
0.35
0.34
1V2U
0.33
0.32
0.31
0.30
Planckian Locus
0.29
0.28
0.28
0.29
0.30
0.31
0.32
0.33
0.34
0.35
0.36
0.37
0.38
CIEx
Standard Chromaticity Group plotted on excerpt from the CIE 1931 (2°) x-y Chromaticity Diagram.
Coordinates are listed below.
Daylight White Bin Coordinates
Bin Code
1V2U
CIEx
CIEy
0.3005
0.3415
0.3290
0.3690
0.3290
0.3180
0.3093
0.2993
0.3005
0.3415
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Flux Bins
Table 1:
[1]
Bin
Code
07R
Red
60
26G
09B
10B
16W
10A
01C
01U
Minimum Flux @ IF = 700mA
Luminous
Radiant
(lm)
(mW)
Green Blue White Amber Cyan Violet
[1]
Red
105
115
Maximum Flux @ IF = 700mA
Luminous
Radiant
(lm)
(mW)
Green Blue White Amber Cyan Violet
190
13
22
22
35
180
300
48
84
71
130
700
1100
Notes for Table 1:
1.
Flux performance is measured at 10ms pulse, T C = 25°C. LED Engin maintains a tolerance of ±10% on flux measurements.
Wavelength Bins
Table 2:
[1,2]
Bin
Code
R01
G2
G3
B03
A01
C01
U56
Red
617
Minimum Wavelength @ IF = 700mA
Dominant (λD)
Peak (λP)
(nm)
(nm)
Green
Blue
Amber Cyan
Violet
520
525
453
592
491
390
Maximum Wavelength @ IF = 700mA [1,2]
Dominant (λD)
Peak (λP)
(nm)
(nm)
Red
Green
Blue
Amber Cyan
Violet
630
525
530
460
597
502
400
Notes for Table 2:
o
1.
Wavelength is measured at 10ms pulse, TC = 25 C.
2.
LED Engin maintains a tolerance of ± 1.0nm on dominant wavelength measurements and ± 2.0nm on peak wavelength measurements.
Forward Voltage Bin
Table 3:
Bin
Code
0
Red
2.1
Green
3.2
Minimum
Forward Voltage (VF)
@ IF = 700mA [1]
(V)
Blue White Amber Cyan
2.8
2.8
2.0
2.9
Violet
3.2
Red
2.9
Green
4.2
Maximum
Forward Voltage (VF)
@ IF = 700mA [1]
(V)
Blue White Amber Cyan
3.8
3.8
2.9
4.0
Violet
4.2
Notes for Table 3:
o
1.
Forward voltage is measured at 10ms pulse, T C = 25 C. LED Engin maintains a tolerance of ± 0.04V for forward voltage measurements.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Absolute Maximum Ratings
Table 4:
Symbol
Value
Unit
DC Forward Current (@TJ = 125 C) – R, G, B, or W single die on
o
DC Forward Current (@TJ = 125 C) – A, C or V single die on
DC Forward Current (@TJ = 125oC) – all 7 die on[1]
Parameter
IF(MAX)
IF(MAX)
IF(MAX)
1500
1000
850
mA
mA
mA
Peak Pulsed Forward Current [2]
IFP
2000
mA
Power Dissipation
Reverse Voltage
Storage Temperature
Junction Temperature
Soldering Temperature [4]
Pd
VR
Tstd
20
See Note 3
-40 ~ +150
125
260
W
V
°C
°C
°C
o
TJ(MAX)
Tsol
Notes for Table 4:
1.
Maximum DC forward current is determined by the overall thermal resistance and ambient temperature. Follow the curves in Figure 11 for current derating.
2:
Pulse forward current conditions: Pulse Width ≤ 10msec and Duty Cycle ≤ 10%.
3.
LEDs are not designed to be reverse biased.
4.
Solder conditions per JEDEC 020D. See Reflow Soldering Profile Figure 3.
5.
LED Engin recommends taking reasonable precautions towards possible ESD damages and handling the emitter in an electrostatic protected area (EPA). An
EPA may be adequately protected by ESD controls as outlined in ANSI/ESD S6.1.
Optical Characteristics @TC = 25°C
Table 5:
Parameter
Symbol
Luminous Flux (@ IF = 700mA)
Luminous Flux (@ IF = 1000mA)
Luminous Flux (@ IF = 1500mA)
Radiant Flux (@ IF = 700mA)
Radiant Flux (@ IF = 1000mA)
Dominant Wavelength
Peak Wavelength
Correlated Color Temperature
Color Rendering Index (CRI)
Viewing Angle [3]
Total Included Angle [4]
ΦV
ΦV
ΦV
Φ
Φ
λD
λP
CCT
Ra
2Θ½
Θ0.9
Red
80
110
160
Green
140
180
220
Blue [1]
33
45
60
Typical
White
210
285
370
Amber
70
90
Cyan
95
120
Violet [2]
0.90
1.25
623
523
457
595
500
395
6500
75
120
160
Unit
lm
lm
lm
W
W
nm
nm
K
Degrees
Degrees
Notes for Table 5:
1.
When operating the Blue LED, observe IEC 62471 Risk Group 2 rating. Do not stare into the beam.
2.
When operating the UV LED, observe IEC 62471 Risk Group 3 rating. Do not stare into the beam.
3.
Viewing Angle is the off axis angle from emitter centerline where the luminous intensity is ½ of the peak value.
4.
Total Included Angle is the total angle that includes 90% of the total luminous flux.
Electrical Characteristics @TC = 25°C
Table 6:
Typical
Unit
Parameter
Symbol
Red
Green
Blue
White
Amber
Cyan
Violet
Forward Voltage (@ IF = 700mA)
Temperature Coefficient
of Forward Voltage
Thermal Resistance
(Junction to Case)
VF
2.5
3.6
3.2
3.2
2.4
3.6
3.7
V
ΔVF/ΔTJ
-1.9
-2.9
-2.0
-2.0
-1.9
-2.6
-2.2
mV/°C
RΘJ-C
1.4
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°C/W
LZ7-04M100 (1.3 – 11/19/2018)
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
IPC/JEDEC Moisture Sensitivity Level
Table 7 - IPC/JEDEC J-STD-20D.1 MSL Classification:
Soak Requirements
Floor Life
Standard
Accelerated
Level
Time
Conditions
Time (hrs)
Conditions
Time (hrs)
Conditions
1
Unlimited
≤ 30°C/
85% RH
168
+5/-0
85°C/
85% RH
n/a
n/a
Notes for Table 7:
1.
The standard soak time includes a default value of 24 hours for semiconductor manufacturer’s exposure time (MET) between bake and bag and
includes the maximum time allowed out of the bag at the distributor’s facility.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Mechanical Dimensions (mm)
Pin Out
Pin
Die
Color
Polarity
2
B
Red
+
3
A
Green
+
5
C
Blue
+
6
F
Amber
-
8
E
Cool White
+
9
G
Cyan
-
11
D
Violet
+
14
D
Violet
-
15
G
Cyan
+
17
E
Cool White
-
20
F
Amber
+
21
C
Blue
-
23
A
Green
-
24
B
Red
-
NC pins: 1, 4, 7, 10, 12, 13, 16, 18, 19, 22
DNC pins: none
Note:
NC = Not Internally Connected (Electrically Isolated)
DNC = Do Not Connect (Electrically Non Isolated)
Figure 1: Package Outline Drawing
Notes for Figure 1:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
2.
Thermal contact, Pad 25, is electrically neutral.
3.
Temperature measurement point: side ceramic closest to the Ts point
Recommended Solder Pad Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2a: Recommended solder pad layout for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2a:
1. Unless otherwise noted, the tolerance = ± 0.20 mm.
2. Pedestal MCPCB allows the emitter thermal slug to be soldered directly to the metal core of the MCPCB. Such MCPCB eliminate t he high thermal resistance
dielectric layer that standard MCPCB technologies use in between the emitter thermal slug and the metal core of the MCPCB, thus lowering the overall system
thermal resistance.
3. LED Engin recommends x-ray sample monitoring for solder voids underneath the emitter thermal slug. The total area covered by solder voids should be less
than 20% of the total emitter thermal slug area. Excessive solder voids will increase the emitter to MCPCB thermal resistance and may lead to higher failure
rates due to thermal over stress.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Recommended Solder Mask Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2b: Recommended solder mask opening for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2b:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
Recommended 8 mil Stencil Apertures Layout (mm)
Non-pedestal MCPCB Design
Pedestal MCPCB Design
Figure 2c: Recommended 8mil stencil apertures layout for anode, cathode, and thermal pad for non-pedestal and pedestal design
Note for Figure 2c:
1.
Unless otherwise noted, the tolerance = ± 0.20 mm.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Reflow Soldering Profile
Figure 3: Reflow soldering profile for lead free soldering
Typical Radiation Pattern
100%
90%
80%
Relatiive Intensity
70%
60%
50%
40%
30%
20%
10%
0%
-90 -80 -70 -60 -50 -40 -30 -20 -10
0
10
20
30
40
50
60
70
80
90
Angular Displacement (Degrees)
Figure 4: Typical representative spatial radiation pattern – all dies on
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Relative Spectral Power Distribution
1.00
0.90
0.80
Relative Spectral Power
Red
0.70
Green
0.60
Blue
White
0.50
Amber
Cyan
0.40
Violet
0.30
0.20
0.10
0.00
350
400
450
500
550
600
650
700
750
800
Wavelength (nm)
Figure 5: Typical relative spectral power vs. wavelength @ TC = 25°C.
Typical Forward Current Characteristics
1,600
IF - Forward Current (mA)
1,400
1,200
1,000
800
Red
Green
600
Blue/White
400
Amber
200
Cyan
Violet
0
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
VF - Forward Voltage (V)
Figure 6: Typical forward current vs. forward voltage @ T C = 25°C
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Relative Flux over Current
200
180
160
Relative Flux (%)
140
120
Red
100
Green
80
Blue
60
White
40
20
0
0
200
400
600
800
1000
1200
1400
1600
IF - Forward Current (mA)
Figure 7a: Typical relative luminous (radiant for Violet) flux vs. forward current @ TC = 25°C – R, G, B, W
160
140
Relative Flux (%)
120
100
80
Amber/ Violet*
60
Cyan
40
* Radiant Flux
20
0
0
200
400
600
800
1000
1200
IF - Forward Current (mA)
Figure 7b: Typical relative luminous (radiant for Violet) flux vs. forward current @ T C = 25°C – A, C, V
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Relative Flux over Temperature
140
120
Relative Flux (%)
100
80
Red
Green
60
Blue
White
40
20
0
0
20
40
60
80
100
120
100
120
TC - Case Temperature (°C)
Figure 8a: Typical relative luminous flux vs. case temperature – R, G, B, W
160
140
Relative Flux (%)
120
100
Amber
80
Cyan
60
Violet *
40
* Radiant Flux
20
0
0
20
40
60
80
TC - Case Temperature (°C)
Figure 8b: Typical relative luminous (radiant for Violet) flux vs. case temperature – A, C, V
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Wavelength Shift over Current
15.0
Red
Wavelength Shift (nm)
10.0
Green
Blue
5.0
0.0
-5.0
-10.0
-15.0
0
200
400
600
800
1000
1200
1400
1600
IF - Forward Current (mA)
Figure 9a: Typical dominant wavelength shift vs. forward current @ TC = 25°C – R, G, B
15.0
Amber
Cyan
Wavelength Shift (nm)
10.0
Violet *
* Peak Wavelength
5.0
0.0
-5.0
-10.0
-15.0
0
200
400
600
800
1000
1200
IF - Forward Current (mA)
Figure 9b: Typical dominant (peak for Violet) wavelength shift vs. forward current @ T C = 25°C – A, C, V
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Chromaticity Coordinate Shift over Current
0.0100
0.0080
0.0060
Delta_Cx, Delta_Cy
White - Delta_Cx
0.0040
White - Delta_Cy
0.0020
0.0000
-0.0020
-0.0040
-0.0060
-0.0080
-0.0100
0
200
400
600
800
1000
1200
1400
1600
IF - Forward Current (mA)
Figure 9c: Typical chromaticity coordinate shift vs. forward current @ T C = 25°C - White
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Wavelength Shift over Temperature
10.0
8.0
Wavelength Shift (nm)
6.0
4.0
2.0
0.0
Red
-2.0
Green
-4.0
Blue
-6.0
-8.0
-10.0
0
20
40
60
80
100
120
TC - Case Temperature (°C)
Figure 10a: Typical dominant wavelength shift vs. case temperature – R, G, B
10.0
8.0
Wavelength Shift (nm)
6.0
4.0
2.0
0.0
Amber
-2.0
Cyan
-4.0
Violet *
-6.0
* Peak Wavelength
-8.0
-10.0
0
20
40
60
80
100
120
IF - Forward Current (mA)
Figure 10b: Typical dominant (peak for Violet) wavelength shift vs. case temperature – A, C, V
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Typical Chromaticity Coordinate Shift over Temperature
Δ Cx, Δ Cy Chromaticity Coordinate Shift
0.020
0.015
0.010
White - Delta_Cx
0.005
White - Delta_Cy
0.000
-0.005
-0.010
-0.015
-0.020
0
20
40
60
TC - Case
80
100
120
Temperature (oC)
Figure 10c: Typical chromaticity coordinate shift vs. case temperature - White
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Current De-rating
900
850
800
700
IF - Forward Current (mA)
(Rated)
600
500
RΘJA = 2°C/W
400
RΘ JA = 3°C/W
RΘ JA = 4°C/W
300
200
100
0
0
25
50
75
100
125
TA - Ambient Temperature (°C)
Figure 11: Maximum forward current vs. ambient temperature
Notes for Figure 11:
1.
Maximum current assumes that all 7 LED die are operating concurrently at the same current.
2.
RΘJ-C [Junction to Case Thermal Resistance] for LZ7-04M100 is 1.4°C/W.
3.
RΘJ-A [Junction to Ambient Thermal Resistance] = RΘJ-C + RΘC-A [Case to Ambient Thermal Resistance].
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Emitter Tape and Reel Specifications (mm)
Figure 12: Emitter carrier tape specifications (mm).
Ø 178mm (SMALL REEL)
Ø 330mm (LARGE REEL)
Figure 13: Emitter reel specifications (mm).
Notes for Figure 13:
1.
Small reel quantity: up to 250 emitters
2.
Large reel quantity: 250-2000 emitters.
3.
Single flux bin and single wavelength bin per reel.
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
LZ7 MCPCB Family
Part number
LZ7-Nxxxxx
Type of MCPCB
7-channel
Dimension
(mm)
38.3 x 31.2
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Emitter + MCPCB
Thermal
Resistance (oC/W)
Typical Vf
(V)
1.4 + 0.1 = 1.5
Red: 2.5V
Green: 3.6V
Blue: 3.2V
White: 3.2V 700
Amber: 2.4V
Cyan: 3.6V
Violet: 3.7V
Typical If
(mA)
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LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
LZ7-Nxxxxx
7 channel, MCPCB (7x1) Dimensions (mm)
Notes:
Unless otherwise noted, the tolerance = ± 0.2 mm.
Standard screw refers to M3 or #4-40 screw.
The thermal resistance of the MCPCB is: RΘC-B 0.1°C/W
Components used
MCPCB:
Thermistor:
MHE-301 copper
NCP15XH103F03RC
(Rayben)
(Murata)
Pad layout
Ch.
1
2
3
4
5
6
7
T
MCPCB
Pad
1
14
2
13
3
12
4
11
5
10
6
9
7
8
1-RT
2-RT
Die/ Color
B/ Red
A/ Green
C/ Blue
F/ Amber
E/ CW
G/ Cyan
D/ UV
NTC
Function
Anode +
Cathode Anode +
Cathode Anode +
Cathode Cathode Anode +
Anode +
Cathode Cathode Anode +
Anode +
Cathode 10kOhm NTC
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LZ7-04M100 (1.3 – 11/19/2018)
20
LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Application Guidelines
MCPCB Assembly Recommendations
A good thermal design requires an efficient heat transfer from the MCPCB to the heat sink. In order to minimize air
gaps in between the MCPCB and the heat sink, it is common practice to use thermal interface materials such as
thermal pastes, thermal pads, phase change materials and thermal epoxies. Each material has its pros and cons
depending on the design. Thermal interface materials are most efficient when the mating surfaces of the MCPCB
and the heat sink are flat and smooth. Rough and uneven surfaces may cause gaps with higher thermal resistances,
increasing the overall thermal resistance of this interface. It is critical that the thermal resistance of the interface is
low, allowing for an efficient heat transfer to the heat sink and keeping MCPCB temperatures low.
When optimizing the thermal performance, attention must also be paid to the amount of stress that is applied on
the MCPCB. Too much stress can cause the ceramic emitter to crack. To relax some of the stress, it is advisable to
use plastic washers between the screw head and the MCPCB and to follow the torque range listed below. For
o
applications where the heat sink temperature can be above 50 C, it is recommended to use high temperature and
rigid plastic washers, such as polycarbonate or glass-filled nylon.
LED Engin recommends the use of the following thermal interface materials:
1.
Bergquist’s Gap Pad 5000S35, 0.020in thick
Part Number: Gap Pad® 5000S35 0.020in/0.508mm
Thickness: 0.020in/0.508mm
Thermal conductivity: 5 W/m-K
Continuous use max temperature: 200°C
Using M3 Screw (or #4 screw), with polycarbonate or glass-filled nylon washer (#4) the
recommended torque range is: 20 to 25 oz-in (1.25 to 1.56 lbf-in or 0.14 to 0.18 N-m)
2.
3M’s Acrylic Interface Pad 5590H
Part number: 5590H @ 0.5mm
Thickness: 0.020in/0.508mm
Thermal conductivity: 3 W/m-K
Continuous use max temperature: 100°C
Using M3 Screw (or #4 screw), with polycarbonate or glass-filled nylon washer (#4) the
recommended torque range is: 20 to 25 oz-in (1.25 to 1.56 lbf-in or 0.14 to 0.18 N-m)
Mechanical Mounting Considerations
The mounting of MCPCB assembly is a critical process step. Excessive mechanical stress build up in the MCPCB can
cause the MCPCB to warp which can lead to emitter substrate cracking and subsequent cracking of the LED dies
LED Engin recommends the following steps to avoid mechanical stress build up in the MCPCB:
o Inspect MCPCB and heat sink for flatness and smoothness.
o Select appropriate torque for mounting screws. Screw torque depends on the MCPCB mounting
method (thermal interface materials, screws, and washer).
o Always use three M3 or #4-40 screws with #4 washers.
o When fastening the three screws, it is recommended to tighten the screws in multiple small
steps. This method avoids building stress by tilting the MCPCB when one screw is tightened in a
single step.
o Always use plastic washers in combinations with the three screws. This avoids high point contact
stress on the screw head to MCPCB interface, in case the screw is not seated perpendicular.
o In designs with non-tapped holes using self-tapping screws, it is common practice to follow a
method of three turns tapping a hole clockwise, followed by half a turn anti-clockwise, until the
appropriate torque is reached.
COPYRIGHT © 2018 LED ENGIN. ALL RIGHTS RESERVED.
LZ7-04M100 (1.3 – 11/19/2018)
21
LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
Wire Soldering
To ease soldering wire to MCPCB process, it is advised to preheat the MCPCB on a hot plate of 125-150oC.
Subsequently, apply the solder and additional heat from the solder iron will initiate a good solder reflow. It is
recommended to use a solder iron of more than 60W.
It is advised to use lead-free, no-clean solder. For example: SN-96.5 AG-3.0 CU 0.5 #58/275 from Kester (pn:
24-7068-7601)
COPYRIGHT © 2018 LED ENGIN. ALL RIGHTS RESERVED.
LZ7-04M100 (1.3 – 11/19/2018)
22
LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
About LED Engin
LED Engin, an OSRAM business based in California’s Silicon Valley, develops, manufactures, and sells advanced LED
emitters, optics and light engines to create uncompromised lighting experiences for a wide range of
TM
entertainment, architectural, general lighting and specialty applications. LuxiGen multi-die emitter and
secondary lens combinations reliably deliver industry-leading flux density, upwards of 5000 quality lumens to a
target, in a wide spectrum of colors including whites, tunable whites, multi-color and UV LEDs in a unique patented
TM
compact ceramic package. Our LuxiTune series of tunable white lighting modules leverage our LuxiGen emitters
and lenses to deliver quality, control, freedom and high density tunable white light solutions for a broad range of
new recessed and downlighting applications. The small size, yet remarkably powerful beam output and superior insource color mixing, allows for a previously unobtainable freedom of design wherever high-flux density, directional
light is required. LED Engin is committed to providing products that conserve natural resources and reduce
greenhouse emissions; and reserves the right to make changes to improve performance without notice.
For more information, please contact LEDE-Sales@osram.com or +1 408 922-7200.
COPYRIGHT © 2018 LED ENGIN. ALL RIGHTS RESERVED.
LZ7-04M100 (1.3 – 11/19/2018)
23
LED Engin | 651 River Oaks Parkway | San Jose, CA 95134 USA | ph +1 408 922 7200 | em LEDE-Sales@osram.com | www.osram.us/ledengin
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