VR68
www.vishay.com
Vishay BCcomponents
High Ohmic/High Voltage Metal Glaze Leaded Resistors
FEATURES
• Technology: Metal glaze
•
R
max.
= 68 M;
U
max.
= 10 000 V
DC
• These resistors meet the safety requirements of:
UL1676 (510 k to 11 M); File No: E171160
IEC 60065, clause 14.1.a)
DIN EN 60065, clause 14.1.a)
VDE 0860, clause 14.1.a)
CQC, China
• High pulse loading capability (10 kV)
• Small size (0718)
• Pure tin plating provides compatibility with lead (Pb)-free
and lead containing soldering processes
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
A metal glazed film is deposited on a high grade ceramic
body. After a helical groove has been cut in the resistive
layer, tinned electrolytic copper wires are welded to the
end-caps. The resistors are coated with a light blue lacquer
which provides electrical, mechanical, and climatic
protection.
The encapsulation is resistant to all cleaning solvents in
accordance with IEC 60068-2-45.
APPLICATIONS
• Where high resistance, high stability and high reliability at
high voltage are required
• Safety component in combination with high voltage
• Picture tubes
• High voltage bleeders
• Cascade switches
TECHNICAL SPECIFICATIONS
DESCRIPTION
Resistance Range
(1)
Resistance Tolerance
Resistance Series
Rated Dissipation,
P
70
Thermal Resistance (R
th
)
Temperature Coefficient
Maximum Permissible Voltage
U
max.
:
DC
RMS
Dielectric Withstanding Voltage of the Insulation for 1 Min
Basic Specifications
Safety Requirements
Climatic Category (IEC 60068-1)
Max. Resistance Change for Resistance Range,
R
max., after:
Load (1000 h,
P
70
)
Long Term Damp Heat Test (56 Days)
Soldering (10 s, 260 °C)
Noise
μV/V
± (1.5 %
R
+ 0.1
)
± (1.5 %
R
+ 0.1
)
± (0.5 %
R
+ 0.1
)
max. 2.5
V
V
10 000
7000
700
IEC 60115
UL1676 (510 k to 11 M); DIN EN 60065, IEC 60065
clause 14.1.a); VDE 0860, clause 14.1.a), CQC
55/155/56
W
K/W
ppm/K
UNIT
%
VR68
100K to 68M
± 1; ± 5
± 1 %: E24/E96 series;
± 5 %: E24 series
1
70
± 200
Note
(1)
Ohmic values (other than resistance range) are available on request
Revision: 10-Jun-13
Document Number: 28734
1
For technical questions, contact:
filmresistorsleaded@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VR68
www.vishay.com
Vishay BCcomponents
PART NUMBER
PART NUMBER: VR68000001503JAC00
V
MODEL/SIZE
VR68000
R
6
8
0
0
0
0
0
1
5
0
3
J
A
C
0
0
SPECIAL
The 2 digits
are used for all
special parts.
00
= Standard
VARIANT
0
= Neutral
Z
= Value overflow
(special)
TCR/MATERIAL
0
= Standard
VALUE
3 digit value
1 digit multiplier
MULTIPLIER
3
= *10
3
4
= *10
4
5
= *10
5
TOLERANCE
F
=±1%
J
=±5%
PACKAGING
(1)
AC
RD
PRODUCT DESCRIPTION: VR68 5 % AC 150K
VR68
MODEL/SIZE
VR68
5%
TOLERANCE
±1
%
±5
%
AC
PACKAGING
(1)
AC
RD
150K
RESISTANCE VALUE
150K
= 150 k
8M2
= 8.2 M
Notes
• The PART NUMBER is shown to facilitate the introduction of a unified part numbering system for ordering products
(1)
Please refer to table PACKAGING
PACKAGING
AMMOPACK
MODEL
TAPING
PIECES
VR68
Axial, 66 mm
500
CODE
AC
PIECES
750
CODE
RD
REEL
DIMENSIONS
L
1
Ød
ØD
L
2
Outline
DIMENSIONS
- Resistor type and relevant physical dimensions
TYPE
VR68
Ø D
max.
6.8
L
1 max.
18.0
L
2 max.
19.0
Ød
0.78 ± 0.05
MASS PER UNIT
TYPE
VR68
MASS
(mg)
1690
MARKING
The nominal resistance and tolerance are marked on the
resistor using four or five colored bands in accordance with
IEC 60062, marking codes for resistors and capacitors.
Yellow and grey are used instead of gold and silver because
metal particles in the lacquer could affect high-voltage
properties.
Revision: 10-Jun-13
Document Number: 28734
2
For technical questions, contact:
filmresistorsleaded@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VR68
www.vishay.com
OUTLINES
The length of the body (L
1
) is measured by inserting the
leads into holes of two identical gauge plates and moving
these plates parallel to each other until the resistor body is
clamped without deformation (IEC 60294).
Vishay BCcomponents
FUNCTIONAL PERFORMANCE
PRODUCT CHARACTERIZATION
Standard values of nominal resistance are taken from the
E96/E24/E12 series for resistors with a tolerance of ± 1 %,
or 5 %. The values of the E96/E24 series are in accordance
with IEC 60063.
LIMITING VALUES
TYPE
DC
VR68
10 000
LIMITING VOLTAGE
(1)
U
max.
RMS
7000
1.0
LIMITING POWER
P
70
(W)
Notes
• The maximum permissible hot-spot temperature is 155 °C
(1)
The maximum voltage that may be continuously applied to the resistor element, see IEC 60115-1
DERATING
The power that the resistor can dissipate depends on the
operating temperature.
PULSE LOADING CAPABILITY
20
^
U
max.
(kV)
P
max.
(%
P
rated
)
100
10
8
50
6
0
- 55
0
50
70
100
155
T
amb
(°C)
4
10
- 2
10
- 1
1
10
R
n
(MΩ)
10
2
Maximum dissipation (P
max.
) in percentage of rated power as a
function of the ambient temperature (T
amb
)
Maximum allowed peak pulse voltage in accordance with
IEC 60065, 14.1.a) ; 50 discharges from a 1 nF capacitor charged
to
Û
max
.; 12 discharges/min (drift
R/R
2 %)
Revision: 10-Jun-13
Document Number: 28734
3
For technical questions, contact:
filmresistorsleaded@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VR68
www.vishay.com
APPLICATION INFORMATION
80
∆
T
(K)
60
15 mm
30
40
20
50
∆
T
(K)
40
Vishay BCcomponents
10 mm
20
10
0
0
0.4
0.8
P
(W)
1.2
0
0
0.4
0.8
P
(W)
1.2
Hot-spot temperature rise (T) as a function of dissipated power
Temperature rise (T) at the lead end (soldering point) as a function
of dissipated power at various lead lengths after mounting
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with
IEC 60115-1 specification, category LCT/UCT/56 (rated
temperature range: Lower Category Temperature, Upper
Category Temperature; damp heat, steady state, test
duration: 56 days).
The tests are carried out in accordance with IEC
60068-2-xx. Test method under standard atmospheric
conditions according to IEC 60068-1, 5.3.
In the Test Procedures and Requirements table the test
and requirements are listed with reference to the relevant
clauses of IEC 60115-1 and IEC 60068-2-xx test methods.
A short description of the test procedure is also given. In
some instances deviations from the IEC recommendations
were necessary for our method of specifying.
All soldering tests are performed with mildly activated flux.
TEST PROCEDURES AND REQUIREMENTS
IEC
60115-1
CLAUSE
4.16
4.16.2
4.16.3
4.16.4
4.17
21 (Ua1)
21 (Ub)
21 (Uc)
20 (Ta)
IEC
60068-2-
TEST
METHOD
TEST
Robustness of terminations:
Tensile all samples
Bending half number
of samples
Torsion other half
of samples
Solderability
Ø 0.8 mm; load 10 N; 10 s
Ø 0.8 mm; load 5 N; 4 x 90°
3 x 360° in opposite directions
2 s; 235 °C: Solder bath method; SnPb40
3 s; 245 °C: Solder bath method;
SnAg3Cu0.5
8 h steam or 16 h 155 °C;
leads immersed 6 mm;
for 2 s at 235 °C; solder bath (SnPb40)
for 3 s at 245 °C; solder bath
(SnAg3Cu0.5) method
Thermal shock: 10 s; 260 °C;
3 mm from body
30 min at - 55 °C and
30 min at + 155 °C; 5 cycles
Number of failures < 10 x 10
-6
Number of failures < 10 x 10
-6
No damage
R
max.: ± (0.5 %
R
+ 0.05
)
Good tinning ( 95 % covered);
no damage
PROCEDURE
REQUIREMENTS
Solderability
(after aging)
Resistance to
soldering heat
Rapid change of temperature
Good tinning (95 % covered);
no damage
4.18
4.19
20 (Tb)
14 (Na)
R
max.: ± (0.5 %
R
+ 0.05
)
R
max.: ± (0.5 %
R
+ 0.05
)
Revision: 10-Jun-13
Document Number: 28734
4
For technical questions, contact:
filmresistorsleaded@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
VR68
www.vishay.com
Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
60115-1
CLAUSE
4.20
4.22
4.23
4.23.2
4.23.3
4.23.4
4.23.5
4.24
4.25.1
4.8
4.7
4.12
4.6.1.1
2 (Ba)
30 (Db)
1 (Aa)
13 (M)
78 (Cab)
IEC
60068-2-
TEST
METHOD
29 (Eb)
6 (Fc)
TEST
PROCEDURE
REQUIREMENTS
No damage
R
max.: ± (0.5 %
R
+ 0.05
)
No damage
R
max.: ± (0.5 %
R
+ 0.05
)
Bump
Vibration
Climatic sequence:
Dry heat
Damp heat (accelerated)
1
st
cycle
Cold
Low air pressure
Damp heat
(steady state)
Endurance
Temperature coefficient
Voltage proof on insulation
Noise
Insulation resistance
3 x 1500 bumps in 3 directions; 40
g
Frequency 10 Hz to 500 Hz; displacement
1.5 mm or acceleration 10
g;
3 directions;
total 6 h (3 x 2 h)
16 h; 155 °C
24 h; 55 °C; 90 % to 100 % RH
2 h; - 55 °C
2 h; 8.5 kPa; 15 °C to 35 °C
56 days; 40 °C; 90 % to 95 % RH;
dissipation 0.01
P
70
;
limiting voltage
U
= 100 V
DC
1000 h at 70 °C;
P
70
or
U
max.
Between - 55 °C and + 155 °C
U
RMS
= 700 V during 1 min;
V-block method
IEC 60195
U
= 500 V
DC
during 1 min;
V-block method
Room temperature;
dissipation 6.25 x
P
70
(voltage not more
than 2 x limiting voltage; 10 000 V max.);
10 cycles; 5 s ON and 45 s OFF
R
ins
min.: 10
3
M
R
max.: ± (1.5 %
R
+ 0.1
)
R
max.: ± (1.5 %
R
+ 0.1
)
R
max.: ± (1.5 %
R
+ 0.1
)
± 200 ppm/K
No breakdown
Max. 2.5 μV/V
R
ins
min.: 10
4
M
R
max.: ± (2.0 %
R
+ 0.05
)
4.13
Short time overload
12NC INFORMATION FOR HISTORICAL CODING REFERENCE
• The resistors have a 12-digit numeric code starting with
2322 244
• The subsequent:
First digit for 1 % tolerance products (E24 and E96 series)
or 2 digits for 5 % (E24 series) indicate the resistor type
and packing.
• The remaining digits indicate the resistance value:
- The first 3 digits for 1 % or 2 digits for 5 % tolerance
products indicate the resistance value.
- The last digit indicates the resistance decade.
12NC Example
The 12NC for a VR68, resistor value 7.5 M, 5 % tolerance,
supplied on a bandolier of 500 units in ammopack, is:
2322 244 13755.
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
100 k to 976 k
1 M to 9.76 M
10 M
LAST DIGIT
4
5
6
12NC
- Resistor type and packaging
2322 244 .....
TYPE
TAPE WIDTH
(mm)
TOL.
(%)
±1
±5
BANDOLIER IN AMMOPACK
500 UNITS
VR68
66.7
8....
13...
BANDOLIER ON REEL
750 UNITS
6....
23...
Revision: 10-Jun-13
Document Number: 28734
5
For technical questions, contact:
filmresistorsleaded@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
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