CGMLA, MLD, MLE Series

CHIPGUARD® PRODUCTS
March, 2016
Introduction of Lead-Free
ChipGuard® Varistor ESD Clamp Protectors
As part of Bourns’ commitment to introduce ecologically friendly substances in our products, the select
Bourns® ChipGuard® MLA Series, MLD Series, and MLE Series Varistor ESD Clamp Protectors listed below
will become lead-free. Currently, the sintering flux in the metal oxide layer used in the manufacture of these
components contains traces of lead which is allowed under Exemption 7(c)-I*. Bourns will convert to a leadfree sintering flux in the metal oxide layer for these models, eliminating the use of Exemption 7(c)-I.
The Varistor Voltage (Vn) and Clamping voltage (Vc) of some part numbers will increase slightly over
current values as shown in the comparisons on page 2. Other electrical and mechanical characteristics
remain unchanged.
The change of sintering flux in the metal oxide layer will not affect the form, fit or function of the products
covered. The agency certifications are unaffected. The product marking and label will remain unchanged.
Identification of the changed product can be determined through the date code and lot code. Qualification
reports and samples are available upon request.
Affected Part Numbers
CG0402MLA-5.5MG
CG0402MLA-18KG
CG0603MLA-5.5ME
CG0603MLA-18KE
CG0603MLA-26KE
CG0402MLD-12G
CG0603MLD-12E
CG0402MLE-18G
CG0603MLE-18E
Implementation dates are as follows:
Last time buy date: July 1, 2016
Date that manufacturing of existing products will cease: July 31, 2016
Date that deliveries of lead-free products will begin: August 1, 2016
First date code using the above changes: 1622
If you have any questions or need additional information, please feel free to contact Customer Service/
Inside Sales.
* Exemption 7(c)-I: Electrical and electronic components containing lead in a glass or ceramic other than dielectric ceramic in
capacitors, e.g. piezoelectronic devices, or in a glass or ceramic matrix compound. The European Union’s Restrictions on use of
Certain Hazardous Substances in Electrical and Electronic Equipment Directive, 2002/95/EC (commonly called “RoHS”) and
amendments and 2011/65/EU (commonly called “RoHS Recast or RoHS2”).
Users should verify that the described change will not impact the performance of the product
in their specific applications.
GDT1608
Introduction of Lead-Free ChipGuard® Varistor ESD Clamp Protectors
Page 2 of 2
March, 2016
MLA Series
CURRENT Electrical Characteristics @ 25 °C (unless otherwise noted)
Model
CG0402MLA-5.5MG
CG0402MLA-14KG
CG0402MLA-14LG
CG0402MLA-18KG
CG0603MLA-5.5ME
CG0603MLA-14KE
CG0603MLA-18KE
CG0603MLA-26KE
Vrms
(V)
VDC
(V)
<50 µA
VN Min.
(V)
VN Max.
(V)
1 mA DC
4
11
11
5.5
14
14
14
4
18
5.5
11
14
20
14
18
26
6.4
16.2
15.3
9.6
19.8
20.7
19.8
6.4
24.2
9.6
16.2
19.8
27.9
VC
(V)
ITM (Max.)
(A)
WTM (Max.)
(J)
CP
(pF) Typ.
1A@
8/20 µs
@ 8/20 µs
10/1000 µs
@ 1 MHz
19
38
30
20
20
20
0.05
0.05
0.05
270
90
100
45
19
19.8
24.2
34.1
35
40
58
20
30
0.05
0.1
30
30
30
85
270
0.1
0.1
0.1
150
130
100
REVISED Electrical Characteristics @ 25 °C (unless otherwise noted)
Model
CG0402MLA-5.5MG
CG0402MLA-14KG
CG0402MLA-14LG
CG0402MLA-18KG
CG0603MLA-5.5ME
CG0603MLA-14KE
CG0603MLA-18KE
CG0603MLA-26KE
Vrms
(V)
VDC
(V)
<50 µA
4
11
11
14
4
11
14
20
VN Min.
(V)
VN Max.
(V)
1 mA DC
5.5
14
14
18
5.5
14
18
26
8.0
16.2
15.3
23.0
8.0
16.2
23.0
32.0
18.0
19.8
20.7
33.0
18.0
19.8
33.0
42.0
VC
(V)
ITM (Max.)
(A)
WTM (Max.)
(J)
CP
(pF) Typ.
1A@
8/20 µs
@ 8/20 µs
10/1000 µs
@ 1 MHz
24
38
30
45
24
35
54
70
20
20
20
20
30
30
30
30
0.05
0.05
0.05
0.05
0.1
0.1
0.1
0.1
270
90
100
85
270
150
130
100
MLD Series
CURRENT Electrical Characteristics @ 25 °C (unless otherwise noted)
Model
Continuous
Operating
Voltage
Breakdown
Voltage
Clamping
Voltage
Off-state
Current
Capacitance
VDC
(V)
VB @ 1 mA
(V)
VC @ 1 A 8/20 µs
(V)
IL
(µA)
COFF
(pF)
Max.
Typ.
Max.
Max.
Max.
CG0402MLD-12G
12
50
140
1
5
CG0603MLD-12E
12
50
140
1
5
REVISED Electrical Characteristics @ 25 °C (unless otherwise noted)
Model
Continuous
Operating
Voltage
Breakdown
Voltage
Clamping
Off-state
Capacitance
VDC
(V)
VB @ 1 mA
(V)
VC @ 1 A 8/20 µs
(V)
IL
(µA)
COFF
(pF)
Voltage
Current
Max.
Typ.
Max.
Max.
Max.
CG0402MLD-12G
12
50
150
1
5
CG0603MLD-12E
12
50
150
1
5
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