VR37.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 VR37 데이타시트 다운로드

No Preview Available !

VR37
Vishay BCcomponents
High Ohmic/High Voltage Resistors
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 “MIL-STD 202E, method 215” and
“IEC 60068-2-45”.
FEATURES
These resistors meet the safety requirements of:
“UL1676” (range 510 kto 11 M)
”IEC 60065”
”EN60 065”
“BS60065” (U.K.)
“VDE 0860” (Germany)
“CQC” (China)
High pulse loading capability
Small size.
APPLICATIONS
Where high resistance, high stability and high reliability at
high voltage are required
Safety component in combination with high voltage
White goods
High humidity environment
Power supplies.
TECHNICAL SPECIFICATIONS
DESCRIPTION
Resistance range(1)
Resistance tolerance and series
Maximum dissipation at Tamb = 70 °C
Thermal resistance, Rth
Temperature coefficient
Maximum permissible voltage:
DC
RMS
Dielectric withstanding voltage of the insulation for 1 minute
Basic specifications
Safety requirements
Climatic category (IEC 60068)
Stability after:
load (1000 hours)
accelerated damp heat test (6 days)
long term damp heat test (56 days)
Noise
Note
1. Ohmic values (other than resistance range) are available upon request.
VALUE
100 kto 33 M
± 1 %: E24/E96 series;
± 5 %: E24 series
0.5 W
120 K/W
± 200 × 106/K
3500 V
2500 V
700 V
IEC 60115-1B
UL1676 (510 kto 11 M); EN60065; BS60065; VDE 0860;
NFC 92-130
55/155/56
R/R max.: ± 1.5 % + 0.1
R/R max.: ± 1.5 % + 0.1
R/R max.: ± 1.5 % + 0.1
max. 2.5 µV/V
12NC ORDERING CODE INDICATING RESISTOR TYPE AND PACKAGING
TYPE
TAPE
WIDTH
(mm)
TOL.
(%)
ORDERING CODE 2322 242 .....
BANDOLIER IN AMMOPACK
BANDOLIER ON REEL
1 000
units
5000
units
VR37
52
±1
±5
8....
13...
6....
23...
Document Number: 28733
Revision: 24-Feb-04
For technical questions contact: ff3dresistors@vishay.com
www.vishay.com
1

No Preview Available !

VR37
Vishay BCcomponents
High Ohmic/High Voltage Resistors
ORDERING INFORMATION
Ordering Code (12NC)
The resistors have a 12-digit ordering code starting with
2322 242.
The subsequent:
first digit for 1 % tolerance products (E24 and E96 series)
or 2 digits for 5 % (E24 series) indicate the resistor type
and packaging.
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.
DIMENSIONS
L1
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
100 to 976 k
1 to 9.76 M
10 M
LAST DIGIT
4
5
6
Ordering Example
The ordering code for a VR37, resistor value 7.5 M, 5 %
tolerance, supplied on a bandolier of 1000 units in
ammopack, is: 2322 242 13755.
L2
Outline.
D
d
DIMENSIONS - resistor type and relevant physical dimensions
TYPE
D
MAX.
L1
MAX.
VR37
4.0
9.0
L2
MAX.
10.0
d
0.7 ± 0.03
MASS PER 100 UNITS
TYPE
VR37
MASS
(g)
53
Yellow and grey are used instead of gold and silver because
metal particles in the lacquer could affect high-voltage
properties.
OUTLINES
MARKING
The nominal resistance and tolerance are marked on the
resistor using four or five coloured bands in accordance with
IEC publication 60062 “Colour codes for fixed resistors”.
The length of the body (L1) 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 publication 60294”).
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 publication 60063”.
LIMITING VALUES
TYPE
VR37
DC
3 500
LIMITING VOLTAGE(1)
(V)
RMS
2 500
LIMITING POWER
(W)
0.5
Note
1. The maximum voltage that may be continuously applied to the resistor element, see “IEC publication 60115-1”.
The maximum permissible hot-spot temperature is 155 °C.
www.vishay.com
2
For technical questions contact: ff3dresistors@vishay.com
Document Number: 28733
Revision: 24-Feb-04

No Preview Available !

VR37
High Ohmic/High Voltage Resistors Vishay BCcomponents
The power that the resistor can dissipate depends on the operating
temperature.
Pmax
(%Prated)
100
50
20
V^ max
(kV)
10
8
6
0
55
0
50 70 100
155
Tamb (°C)
4
102
101
1
10 102
Rn
(M)
Maximum dissipation (Pmax) in percentage of rated power
as a function of the ambient temperature (Tamb).
Derating
Maximum allowed peak pulse voltage in accordance with
“IEC 60065 chapter 14.1”; 50 discharges from a 1 nF capacitor
charged to Vmax ; 12 discharges/minute (drift R/R 2 %).
Pulse Loading Capability
80
T
(K)
60
40
20
50
T
(K)
40
30
20
10
5 mm
10 mm
15 mm
0
0 0.4 0.8 P (W) 1.2
Hot-spot temperature rise (T) as a function of dissipated power.
Application Information
0
0 0.4 0.8 P (W) 1.2
Temperature rise (T) at the lead end (soldering
point) as a function of dissipated power at various
lead lengths after mounting.
Document Number: 28733
Revision: 24-Feb-04
For technical questions contact: ff3dresistors@vishay.com
www.vishay.com
3

No Preview Available !

VR37
Vishay BCcomponents
High Ohmic/High Voltage Resistors
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
schedule of “IEC publication 60115-1”, category
LCT/UCT/56 (rated temperature range: Lower Category
Temperature, Upper Category Temperature; damp heat,
long term, 56 days). The testing also covers the
requirements specified by EIA and EIAJ.
The tests are carried out in accordance with IEC publication
60068-2, “Recommended basic climatic and mechanical
robustness testing procedure for electronic components”
and under standard atmospheric conditions according to
“IEC 60068-1”, subclause 5.3.
In the Test Procedures and Requirements table the tests and
requirements are listed with reference to the relevant
clauses of “IEC publications 60115-1 and 60068-2”; 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
60 115-1
CLAUSE
4.16
IEC
60 068-2
TEST
METHOD
21 (U)
TEST
robustness of terminations:
PROCEDURE
REQUIREMENTS
4.16.2
21 (Ua1) tensile all samples
0.7 mm; load 10 N; 10 s
number of failures < 10 × 106
4.16.3
21 (Ub)
bending half number
of samples
4.16.4
21 (Uc)
torsion other half
of samples
4.17
20 (Ta)
solderability
0.7 mm; load 5 N; 4 × 90°
number of failures < 10 × 106
3 × 360° in opposite directions
2 s; 235 °C
no damage
R/R max.: ± 0.5 % + 0.05
good tinning; no damage
4.18
20 (Tb)
resistance to
soldering heat
thermal shock: 3 s; 350 °C;
3 mm from body
R/R max.: ± 0.5 % + 0.05
4.19
14 (Na)
rapid change of temperature
30 minutes at 55 °C and
R/R max.: ± 0.5 % + 0.05
30 minutes at + 155 °C; 5 cycles
www.vishay.com
4
For technical questions contact: ff3dresistors@vishay.com
Document Number: 28733
Revision: 24-Feb-04

No Preview Available !

VR37
High Ohmic/High Voltage Resistors Vishay BCcomponents
TEST PROCEDURES AND REQUIREMENTS
IEC
60 115-1
CLAUSE
IEC
60 068-2
TEST
METHOD
TEST
PROCEDURE
4.20
29 (Eb)
bump
3 × 1500 bumps in 3 directions; 40 g
REQUIREMENTS
no damage
R/R max.: ± 0.5 % + 0.05
4.22
6 (Fc)
vibration
4.23 climatic sequence:
frequency 10 to 500 Hz; displacement
1.5 mm or acceleration 10 g; 3 directions;
total 6 hours (3 × 2 hours)
no damage
R/R max.: ± 0.5 % + 0.05
4.23.2
2 (Ba)
dry heat
16 hours; 155 °C
4.23.3
30 (Db)
damp heat (accelerated) 1st
cycle
4.23.4
1 (Aa)
cold
24 hours; 55 °C; 90 to 100 % RH
2 hours; 55 °C
4.23.5
13 (M)
low air pressure
2 hours; 8.5 kPa; 15 to 35 °C
4.23.6
30 (Db)
damp heat (accelerated)
remaining cycles
4.24.2
3 (Ca)
damp heat
(steady state)
4.25.1
endurance
5 days; 55 °C; 95 to 100 % RH
56 days; 40 °C; 90 to 95 % RH;
dissipation 0.01 Pn;
limiting voltage 100 V (DC)
1000 hours at 70 °C; Pn or Vmax
Rins min.: 103 M
R/R max.: ± 1.5 % + 0.1
R/R max.: ± 1.5 % + 0.1
R/R max.: ± 1.5 % + 0.1
4.8.4
temperature coefcient
between 55 °C and + 155 °C
(TC × 106/K)
± 200
Document Number: 28733
Revision: 24-Feb-04
For technical questions contact: ff3dresistors@vishay.com
www.vishay.com
5