MO-S Datasheet, PDF (2/2 Pages) TT Electronics. – Flameproof protection

Power Metal Oxide
Film Resistors
MO-S Series
OBSOLETE
Welwyn Components
Performance Data
Load at rated power: 1000 hrs at 70°c
Shelf life: 12 months at room temperature
Derating
Climatic
Climatic category
Temperature rapid change
Resistance to solder heat
∆R%
∆R%
∆R%
∆R%
∆R%
Maximum
5
2
See derating curve
1
40/125/56
0.5
0.5
Application Notes
1. If the resistors are to dissipate full rated power, it is
recommended that the terminations should not be
soldered closer than 4mm from the body.
2. Due to operating temperature limitations imposed by some
pcb materials, derating may be necessary. An estimate of
the temperature rise to be expected can be calculated
using the thermal impedance figures given under Electrical
Data.
3. MO-S resistors can also be supplied pre-formed.
See lead form section for details.
Packaging
Our standard packaging for MO¹/2S, MO1S, MO2S and MO3S
is taped and ammo packed, MO5S is taped and reeled. The
critical dimensions are shown in Figure 1.
100
90
80
70
60
50
40
30
20
10
0
60
MO-S Series Derating Curve
80 100 120 140 160 180 200 220 240
Ambient Temp
Figure 1
c
The component wires will not protrude beyond the outside
edge of the tapes.
Pre-formed resistors are supplied loose packed in plastic bags
or boxes.
f₁
6
b
f₂
6
Body Location f₁ – f₂ ≤ 1.4 mm
Alternative packaging available by request.
Type
b
c
MO¹/2S MO1S
52
52
5
5
MO2S
52
5
MO3S
67
10
MO5S
85
10
Standard Quantities Per Package
Type MO¹/2S MO1S
Reel
5000 2500
Ammo pack 5000 2500
MO2S
2500
1500
MO3S
1000
1000
MO5S
700
n/a
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
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Issue C · 07.04