Download data sheet - Resistors

High Voltage
Resistors
Film Resistors
HighMetal
Voltage
High
Voltage
Metal
Film Resistors
MH Series
Metal
Film
Resistors
60065 Approval for MH37
• BSEN
Welwyn Components
Welwyn Components
MH Series
MH Series in value range 680K to 3M
High
working
voltage
to 3.5KV
•60065
Approval
for MH37
• BSEN
MH37 meets
requirements
of BSEN
60065
Small
sizeto
value
range
680K
•range
in
in value
680K
3M to 3M
pulse
working
voltage
to capability
3.5KV
• Highvoltage
• High
High working
toload
3.5kV
size
Small size
• Robust cement coating
• Small
upcapability
to 10M
High pulse
load
capability
pulse
load
• Value
• High
Robust cement
coating
cement
coating
• Robust
• Value
Value up
to
10M
up to 10M
All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)
Electrical Data
MH25
Electrical
Data
Power rating
at 70°C max
Resistance range
0.25
0.5
ohms
100K - 10M
100K - 3M
MH25
volts dc or ac peak
watts
0.25
volts
ohms
100K - 10M
ppm/°C
volts dc or ac peak
1,600
%
volts
Limiting element voltage
Power rating at 70°C max
Isolation voltage
Resistance range
TCR
Limiting element voltage
Resistance tolerance
Isolation voltage
Standard values
TCR
Thermal impedance
Resistance tolerance
Ambient temperature range
Standard values
ppm/°C
%
Thermal impedance
0.5
700
100K - 3M
100
3,500
1, 2, 5
3,500
700
E24 and E96 preferred
100
140
1, 2, 5
°C
112
- 55 to 155
E24 and E96 preferred
140
112
°C
Physical Data
MH37
1,600
°C/watt
°C/watt
Ambient temperature range
MH37
watts
- 55 to 155
Dimensions (mm) and Weight (g)
Physical Data
PCB
Min
mounting Bend
Dimensions (mm) and Weight (g)
Type
L max
D max
f min
d nom
centres
Radius
PCB
Min
MH25
6.2
2.5
21.0
0.6
10.2
0.6
mounting Bend
MH37
9.0
3.7
19.6
0.8
12.7
1.2
Type
L max
D max
f min
d nom
centres
Radius Wt.nom
MH25
MH37
6.2
2.5
Construction
9.0
3.7
21.0
0.6
10.2
0.6
0.3
19.6
0.8
12.7
1.2
0.5
d
Wt.nom
D
L
0.3
0.5
d
D
L
f
f
Terminations
Thin film material is sputtered on to high grade ceramic rods.
Material
Solder-coated copper wire.
Nickel plated steel caps are force fitted and the termination
Strength
The terminations satisfy the requirements of
Construction
wires are welded to the caps. The value is obtained by Terminations
a
IECcopper
68.2.21.
Thin film material
onand
to high
grade
ceramicbody
rods. is protected
Material
Solder-coated
wire.
helical is
cutsputtered
in the film
finally
the resistor
Nickel plated
steel
caps
are
force
fitted
and
the
termination
Solderability
The
terminations
meet the requirements
of
by a cement protection applied so that the terminations
Strength
The terminations satisfy the requirements
of
wires are welded
to
the
caps.
The
value
is
obtained
by
a
IEC
115-1,
Clause
4.17.3.2
remain completely clear.
IEC 68.2.21.
helical cut in the film and finally the resistor body is protected
Solderability
The terminations
by a cementMarking
protection applied so that the terminations
Solvent
resistancemeet the requirements of
IEC
115-1,
Clause
4.17.3.2
remain completely
clear. resistors are colour coded with 5 bands.
The body protection
and
marking are resistant to all normal
1% tolerance
Marking
2% and 5% tolerance have 4. Band IEC 62 colours are used.
industrial cleaning fluids suitable for printed boards.
Solvent resistance
1% tolerance resistors are colour coded with 5 bands.
2% and 5% tolerance have 4. Band IEC 62 colours are used.
The body protection and marking are resistant to all normal
industrial cleaning fluids suitable for printed boards.
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.
General Note
General Note
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
A subsidiary of
TT electronics plc
BI Technologies IRC Welwyn
TT Electronics reserves the right to make changes in product specification without notice or liability.
Welwyn Components
reserves
make changes
in product
or liability.
Issue E · 10.05
Telephone:
+44the
(0) right
1670to822181
· Facsimile:
+44 (0) specification
1670 829465without
· Email:notice
[email protected]
· Website: www.welwyn-tt.com
All
subject
to TT
Electronics’own
owndata
dataand
and is
is considered
going
to to
print.
A subsidiary of
Allinformation
informationis is
subject
to Welwyn’s
consideredaccurate
accurateatattime
timeofof
going
print.
http://www.ttelectronics.com/resistors
TT electronics plc
© TT
Welwyn
Components
Limited · Bedlington, Northumberland NE22 7AA, UK
©
Electronics
plc
Issue E · 10.05
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com
11.16
191
19
High
Voltage
High
Voltage
Metal
Film
Resistors
Metal
Film
Resistors
High
Voltage
High
Voltage
MH
Series
MH Series
Metal
Film
Resistors
Metal Film
Resistors
MH Series
MH
Series
Performance
Data
Performance
Data
Performance Data
Load at rated voltage : 1000 hrs at 70°C
Load at rated voltage : 1000 hrs at 70°C
Derating from rated power at 70°C
Derating from rated power at 70°C
Overload
Overload
Load
at rated
voltage : 1000 hrs at 70°C
56
days
at DHSS
56 days at DHSS
D
e
r
a
t
i
n
g
f
r
o
m
rated power at 70°C
Climatic
Climatic
Overloadcategory
Climatic
Climatic category
56 days at DHSS
Temperature
rapid change
Temperature rapid change
Climatic to solder heat
Resistance
Resistance to solder heat
Climatic category
Vibration
and bump
Vibration and bump
Temperature
Voltage proofrapid change
Voltage proof
Resistance to solder heat
Welwyn Components
Welwyn Components
Welwyn Components
∆ R%
∆ R%
Maximum
Maximum
1.5
1.5
∆ R%
∆ R%
%
∆∆ RR%
∆ R%
∆ R%
∆ R%
∆ R%
Max1i.m
0 um
1.0
11..55
1.5
1.5
1.5
1.0
∆∆ R%
∆ R%
∆∆ R%
∆ R%
∆ R%
∆ R%
∆vo
Rl%
ts
volts
∆ R%
0.5
0.5
0.5
To ensure
reliable
performance
high voltages
should
be taken
to avoid
potentialatsources
of ionic care
contamination
be taken
to
avoid
potential
sources
of
ionic
contamination
contacting
the resistor
body, for example, flux applied by
Application
Notes
contacting
theencapsulation
resistor
body, materials
for example,
flux applied by
spraying,
or
contaminants
from
the
To ensure
reliable performance
at
high
voltages
care
should
spraying,
encapsulation
materials
or
contaminants
from
the
environment
of
use.
be takenoftouse.
avoid potential sources of ionic contamination
environment
contacting the resistor body, for example, flux applied by
Packaging
spraying, encapsulation materials or contaminants from the
Packaging
All
MH series of
resistors
environment
use. are supplied tape packed ready for
All MH
serieson
resistors
are supplied
tapeand
packed
readymachines.
for
loading
automatic
sequencing
insertion
loading on automatic sequencing and insertion machines.
01.5
0.5
0.5
0.5
Vibration and bump
∆ R%
Application
Notes
Application
Notesperformance at high voltages care should
To ensure reliable
Voltage proof
01.5
Zero at 155°C
Zero at 155°C
Typical
Typical
0.4
0.4
Ty0p
.2ic5al
0.25
00..24
0.2
Zero at 155°C
0.2
0.2
0.25
55/155/56
55/155/56
00.0.25
0.05
00.0.25
0.05
55/155/56
0.05
0.05
0.05
700 min
700 min
0.05
0.5
0.05
volts
700 min
Packaging
Component
wires
will not
protrude tape
beyond
the outside
edge
All MH series
resistors
are supplied
packed
ready
for
Component
wires will
not protrude
beyond the
outside
edge
of
the tape.
loading
on
automatic
sequencing
and
insertion
machines.
of the tape.
Alternative
packing
available
by request.
Component
wires
will
not
Alternative
packing
available
byprotrude
request. beyond the outside edge
of the tape.
Lead Formed Resistors can also be supplied. Standard options
Leadof
Formed
canGoal
also be
supplied. Standard
options
Lancet,Resistors
Radial
and
Post
are shown
in the
Alternative
packing
available
by forming
request.
of Lancet,
Radial
and
Goal
Post
forming
are
shown
in
the
Lead Form information sheet.
Lead Form information sheet.
Lead Formed Resistors can also be supplied. Standard options
of Lancet, Radial and Goal Post forming are shown in the
Lead Form information sheet.
Ordering
Procedure
Ordering
Procedure
6
6
52
6
52
6
56
52
f1
6
5
5
f2
f1
f2
Body Location f1 – f2 ≤ 1.4 mm
Body Location f1 – f2 ≤ 1.4 mm
f1
f2
Body Location f1 – f2 ≤ 1.4 mm
Example: MH25 at 4.7 megohms and 1% tolerance in ammo pack box of 5000 pieces –
Example: MH25 at 4.7 megohms and 1% tolerance in ammo pack box of 5000 pieces –
Ordering Procedure
MH25– 4M7FI
MH25– 4M7FI
Example:
Type MH25 at 4.7 megohms and 1% tolerance in ammo pack box of 5000 pieces –
Type
MH25– 4M7FI
Value (use IEC62 code)
Value (use IEC62 code)
Type
Tolerance (use IEC62 code)
Tolerance
F 1%(use IEC62 code)
(use IEC62 code)
F Value
1%
G 2%
J2% 5%
Tolerance
(use IEC62 code)
5%
F 1%
Packing
G 2%
Packing
MH25
5000/box
J I 5% AmmoMH25
Standard
5000/box
MH37
2500/boxStandard
I
Ammo
MH37
2500/box
G
J
Packing
© Welwyn Components
Limited Bedlington,
Northumberland NE22 7AA, UK
MH25
5000/box
I Components
Ammo
Standard
© Welwyn
Limited
Bedlington,
Northumberland
NE22
7AA,
UK
Telephone:
+44 (0)
1670 822181
· Facsimile:
+44 (0)
1670 829465
· Email:
[email protected]
· Website: www.welwyn-tt.com
General
Note
MH37
2500/box
BI Technologies
192
Telephone:
+44 (0) 1670
822181
· Facsimile:
+44 (0) 1670
829465
· Email: [email protected]
· Website: www.welwyn-tt.com
TT Electronics
reserves
the right
to make changes
in product
specification
without notice or liability.
192 All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone:
+44 (0) 1670
© TT Electronics
plc 822181 · Facsimile: +44 (0) 1670 829465 · Email: [email protected] · Website: www.welwyn-tt.com
192
Issue E · 10.05
IRC
Issue E · Welwyn
10.05
http://www.ttelectronics.com/resistors
Issue E · 10.05
11.16