High Voltage
Resistors
HighChip Resistors
Voltage
High Voltage
Chip Resistors
Chip Resistors
HVC Series
Welwyn Components
Welwyn Components
•
HVC Series
Continuous voltages up to 3kV
HVC Series
Overload voltages up to 4kV
•
•
Continuous voltages up to 3kV
Continuous voltages up to 3kV
•
Values up to 100M
•
Overload voltages up to 4kV
Overload voltages up to 4kV
•
to 100M
•
Values up Tolerances to ±0.5%
Values up to 1G0
•
to ±0.5%
•
TolerancesRobust thick film construction
Precision to ±0.5% & ±50ppm/°C
100% screened by automated optical inspection
•
Robust thick film construction
100% screened by high voltage overload
Anti-sulphur version available
AEC-Q200 grade available
All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Electrical Data
Electrical
we
Data
70° C
Po r rating @
1206
watts
1206
lts
vo
1000
15o0ms
0h
0.3 olts
v
0.3
1
2010
000
2010
0.5
2512
2000
2512
1
30
Notes
00
4000
Notes
Limiting element voltage
Power rating @70° C
1
Maximum overload voltage (2s)
Limiting element voltage
Resistance range
1
Maximum overload voltage (2s)
Resistance rangResistance tolerance
e
Resistance tolerTCce
anR
Ambient temperature range
TCR
Values
Values
watts
volts
v olts
o hms
%
ppm/° C
°C
° C/W
%
ppm/° C
°C
° C/W
200
Ambient tempeThtumalaIngpedance
ra erre r m e
Thermal Impedance
E24 & E96 preferred
80
Consult factory for
DC or AC peak
3000
out of range values
Consult factory for
10K to 1G0
0.5,1,2,5,10
out of range valuesSee table of
value ranges
0.5,1,2,5,10 50, 100, 500
See table of
-55 to +155
value ranges
50, 100, 500 & E96 preferred
E24
Any value to order
-552to +155
00
80
70
Any value to order
70
150.0
05
2000
3001
0
3000
10K t4000
o 1G0
DC or AC peak
Value Ranges (ohms)
Value Ranges (ohms)
Size
TCR (ppm/ºC)
Size
TCR (ppm/ºC)
1206
50
100
500
2010 & 2512
50
2010 & 2512
100
500
50
100
500
50
100
500
0.5
-
10K to 2M
-
10K to 10M
Note 1: 100% high voltage screened in ohmic range 300K to 40M
Tolerance (%)
0.5
-
10K to 2M
-
Tolerance (%)
1&2
-
10K to 10M
10K to 100M
10K -to 100M
-
1&2
10K to 10M
5 & 10
10K to 100M
>100M
10K to 100M
>100M
5 & 10
10K to 100M
>100M
10K to 100M
>100M
1206
-
10K to 10M
Physical Data
Physical
Dimensions (mm) & Weight (mg)
Data
L
W
Dimensions (mm) & Weight (mg)
3.2±0.2
T max
1.6±0.2
1206
L
W
1206
2010
2512
3.2±0.2
2010
5.1±0.3
2512
1.6±0.2
5.1±0.3
2.5±0.2
6.5±0.3
T max
A
0.7
A
B
0.35±0.2
min
B min
C
1.95
C
0.35±0.2
Wt.
8.5
0.4±0.25
36
0.4±0.2
55
Wt.
8.5
A
C
B
L
B
L
T
A
W
C
T
0.7
2.5±0.2 0.35±0.2
0.8
0.8
3.2±0.2 0.45±0.2
0.8
0.8
0.45±0.2
1.95
0.35±0.2
3.7
0.45±0.2
3.7
0.45±0.2 0.4±0.25
5
5
0.4±0.2
36
A
55
Wrap-around terminations
W (3 faces)
A
6.5±0.3
3.2±0.2
General Note
Wrap-around terminations
(3 faces)
A subsidiary of
TT electronics plc
01.11
General Note
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
Welwyn Components
Welwyn Components Limited
· Bedlington,
notice
without notice or liability.
©
reserves the right to make changes in product specification
or liability.
TT Electronics reserves the right to make changes in product specification without
Northumberland NE22 7AA, UK
All information
subject to TT Electronics’ own
822181
is considered
accurate at 829465 going
print.
Telephone: +44 (0) own
data and
Facsimile: +44 (0) 1670 time of · Email: print.
All information is
is subject to Welwyn’s 1670data and ·is considered
accurate at time of going to
toinfo@welwyn-tt.com · Website: www.welwyn-tt.com
BI Technologies IRC Welwyn
A subsidiary of
TT electronics plc
www.ttelectronics.com/resistors
01.11
06.20
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
84
© TT Electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
84
High Voltage
High Voltage Chip Resistors
HVC Series
HVC Series
Chip Resistors
Welwyn Components
Solderability
The terminations have an electroplated nickel barrier and tin
finish. This ensures excellent ‘leach’ resistance properties and
solderability.
Construction
Resistive thick film material, overglaze and organic
protection are screen printed on a 96% alumina substrate.
The design and laser adjustment of the resistive element
optimises the limiting element voltage of the resistor.
Terminations
The chips are supplied with wrap-around terminations
suitable for soldering. Consult factory for alternative
termination options.
Marking
The body protection is resistant to all normal cleaning solvents
suitable for printed circuits. The chips are not marked and the
relevant information on type, value, tolerance date code and
quantity are recorded on the reel.
Performance Data
Performance Data
1206: 2
1206:
1
1206: 1
2010/2512: 1
2010/2512: 0.25
2010/2512:
1
2010/2512:
0.25
ΔR%
0.1
0.02
Shelf life test:
12 months at room temperature
Shelf life test:
12 months at room temperature
∆
R%
0.1
0.02
Derating from rated power at 70°C
Zero at 155°C
Derating from rated power at 70°C
Zero at 155°C
ΔR%
2
0.2
Short term overload:
Lesser of 6.25 x rated power or Maximum overload voltage
Short term overload:
Lesser of 6.25 x rated power or Maximum overload voltage
∆
R%
2
0.2
ΔR%
0.5
0.2
Lightning strike:
1.2/50μs & 10/700μs - see graph for peak voltage
Lightning strike:
1.2/50µs & 10/700µs - see graph for peak voltage
∆
R%
0.5
0.2
ΔR%
0.5
0.1
Dry heat:
1000 hours at 155°C
Dry heat:
1000 hours at 155°C
∆
R%
0.5
0.1
Long term damp heat
ΔR%
1
0.25
Long term damp heat
∆
R%
1
0.25
0.05
Temperature rapid change
ΔR%
0.25
Temperature rapid change
∆
R%
0
ΔR%
.25
0.05
0.05
Resistance to solder heat
0.25
Resistance to solder heat
∆
R%
0
ΔR%
.25
0.05
0.05
Anti-sulphur grade (AS)
ASTM-B-809 (1000 hours, 50°C, 91-93% RH)
0.25
EIA-977 (750 hours, 105°C)
ΔR%
0.25
Resistance to sulphur-bearing gas (AS version only): ASTM-B-809
0.25
0.05
0.05
Sulphur-resistant grade (SR) ASTM-B-809 (1000 hours, 50°C, 91-93% RH)
ΔR%
0.25
0.05
Voltage proof
volts
500
Modified ASTM-B-809 (1000 hours, 105°C, 85% RH)
ΔR%
1
0.25
1206:
-25
1206:
-15
Voltage proof
volts
500
Voltage coefficient of resistance
ppm/V
2010:
-15
2010:
-5
1206: -25
1206: -15
2512
≤100M:
-5
2512
≤100M:
-1.5
2010: -15
2010: -5
2512
>100M: -15
2512
>100M: -8
Voltage coefficient of resistance
ppm/V
2512 ≤100M: -5 2512 ≤100M: -1.5
2512 >100M: -15 2512 >100M: -8
Load at rated power:
1000 hours rated load @ 70°C
Load at rated power:
1000 hours at 70°C
∆R%
1206:
2
ΔR%
Maximum
Maximum
Typical
Typical
Maximum Continuous Voltage
3500
Lightning Strike Performance
8
Peak Voltage (kV)
3000
6
4
2
0
0.01
Voltage (V)
2500
2000
1500
1000
500
0
0.01
0.1
1
10
100
1000
Resistance Value (MΩ)
0.1
1
10
100
1000
Resistance Value (MΩ)
HVC1206
HVC2512
HVC2010
Commodity Chip
1206-1.2/50µs
2010-1.2/50µs
2512-1.2/50µs
1206-10/700µs
2010-10/700µs
2512-10/700µs
Note: maximum peak voltage tested was 6kV; performance beyond this is estimated.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
© TT Electronics plc
07.11
06.20
85
High Voltage Chip Resistors
High Voltage
HVC
Series
Series
HVC
Chip Resistors
Application Notes
Welwyn Components
HVC resistors are ideally suited for handling by automatic
methods due to their rectangular shape and the small
dimensional tolerances. Electrical connection to a ceramic
substrate or to a printed circuit board can be made by reflow
or wave soldering of wrap-around terminations.
Wrap-around terminations provide good leach properties and
ensure reliable contact. Due to the robust construction, the
HVC can be immersed in the solder bath for 30 seconds at
260°C. This enables the resistor to be mounted on one side
of a printed circuit board and wire-leaded components
applied on the other side.
HVC resistors themselves can operate at a maximum
temperature of 155°C (see performance above). For soldered
resistors, the joint temperature should not exceed 110°C. This
condition is met when the stated power levels at 70°C are used.
The PCB layout should avoid tracks running between the HVC
mounting pads, as this would compromise the LEV.
The LEV stated applies to operation at sea-level pressure, in a
non-condensing atmosphere and non-contaminating
environment. Voltage derating should be applied if low
pressure, high humidity or contamination may be encountered.
The termination clearance dimension (B) should be used in
conjunction with the creepage limit applicable to the circuit
application in order to determine the derated LEV.
Packaging
HVC Resistors are supplied taped and reeled as per IEC 286-3.
T
2
D
0
P
2
P
0
T
33
±
1.0
Marking
Wr
E
13
±
0.5
F
178
±
2
80
±
2
B
0
2.5
±
0.5
0.8
±
0.15
T
1
K
0
A
0
P
1
D
1
Tape and reel dimensions (mm)
Wr
±0.5
1206
2010
2512
9
13
13
W
±0.3
8
12
12
P1
±0.1
4
4
8
P0
±0.1
4
4
4
P2
±0.05
2
2
2
D0
±0.1
1.5
1.5
1.5
D1
±0.2
1
1.5
1.5
E
±0.1
1.75
1.75
1.75
F
±0.05
3.5
5.5
5.5
A0
±0.1
1.95
2.79
3.61
B0
±0.1
3.55
5.89
6.96
K0
±0.1
1.0
0.91
1.17
T
±0.05
0.2
0.28
0.28
T1
Nom.
0.05
0.06
0.06
T2
±0.15
1.3
1.21
1.45
G
W
Qty.
per
reel
3000
3000
1800
Ordering Procedure
Example: HVC2512 at 4.7 megohms and 1% tolerance on a reel of 1800 pieces -
Type
Size
TCR
C
100ppm/°C
50ppm/°C
T3
T18
Tape
1206 or 2010
2512
3000/reel
1800/reel
Packing
Standard
Termination
AS
Standard terminations
Anti-sulphur terminations
Tolerance (use IEC62 code)
D
F
G
0.5%
1%
2%
J
K
5%
10%
Value (use IEC62 code)
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
86
Telephone: +44
General Note
(0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
BI Technologies
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
IRC Welwyn
01.11
www.ttelectronics.com/resistors
© TT Electronics plc
06.20
High Voltage Chip Resistors
HVC Series
Ordering Procedure
Example: HVC2512-4M7FT18
(2512, 4.7 megohms ±1%, with
±100ppm/°C
TCR and standard grade and
terminations, Pb-free)
H
V
1
1
2
C
2
5
2
3
TCR
1
2
3
4
4
Sulphur Grade
2
-
1
4
M
5
7
F
6
5
T
1
7
8
6
Tolerance
7
Grade, Termination & Packing
Standard grade, Pb-free finish
T3
1206, 2010
3000/reel
T18
2512
1800/reel
Standard grade, SnPb finish
PB
Quantities as for Pb-free
AEC-Q200 grade, Pb-free finish
A3
1206, 2010
3000/reel
A18
2512
1800/reel
AEC-Q200 grade, SnPb finish
PBA
Quantities as for Pb-free
Type Size
Value
HVC 1206
Omit for standard E24 = 3/4 characters D = ±0.5%
Omit for
±100/500ppm/°C
AS = Anti-sulphur E96 = 3/4 characters F = ±1%
2010
2512 C =
±50ppm/°C
SR = Sulphur Resistant
K = kilohms
G = ±2%
M = megohms
J = ±5%
G = gigohms
K = ±10%
Note 1: The hyphen is omitted if necessary to keep the total character count below 19.
Note 2: For new designs requiring resistance to sulphur-bearing gas, SR grade is preferred.
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.ttelectronics.com/resistors
© TT Electronics plc
06.20
stm32/stm8
