SP20 Datasheet, PDF (2/3 Pages) Welwyn Components Limited – General-Purpose Failsafe Moulded Wirewound Resistors

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S^SPP²2⁰0^//^SS^PP²⁰2^F0^SF^eS^rie^er^sies
Make Possible
Welwyn Components
Performance Data
Test
Temperature coefficient (ppm)
ppm/°C
Dielectric withstanding voltage
RMS
Momentary overload
%
Low temperature operation
%
SP20 / SP20F Series Temperature cycle
Humidity
%
%
G^Loe^adn^lifeeral Purpose Failsafe
%
Molded Wirewound Resistor ^{Terminal strength}
%
Resistance to solder heat
%
*0.1 ohm SP20F <1000 ppm.
SP20
<1R ±800
≥1R ±150
700V
5
5
5
5
5
5
5
SP20F
<1R ±800*
≥1R ±150
S^SPP²-⁰2^P0^owP^eo^rw^De^err^aD^tine^grating Curve
2.5
2.0
1.5
1.0
0.5
0
0
50_Ambie1_n0_t0_Temp1_e5_ra0_{ture (}2_°C0₎0
Ambient Temperature (°C)
SP-20F P^So^Pw²⁰e^Fr^PD^owe^er^ra^Dti^en^rg^atC^ingurve
2.5
2.5
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
0
0
50
100
150
200
0
50 100 1_A5_m0 _bien2_{t T}0_e0_{mperature (°C)}
Ambient Temperature (°C)
SP20F Typical Fusing
SP20 and SP20F Temperature Rise
SP-20 and SP20F
Temperature Rise Chart
SP20F Fusing Characteristic
(Maximum & Typical Fusing Times)
120
1000
Maximum - all values
100
0.1 ohm
100
80
1 ohm
Typical
10 ohm
100 ohm
- 1R0
60
1000 ohm
10 _Typical
40
- 470R
Time (seconds)
Power Input (watts)
20
1
Ordering Procedure
0
Exam⁰ple:
SP2^0.0⁵F at 47^1.0⁰ ohms^1.a⁵nd
Power Input (watts)
5%^2.t⁰olerance_0.1tape
10
packed on a reel of
15 _SP220_{0F – 4}25_70R
4000
J³⁰ I
pieces –
35
40
45
50
55
60
Type
Initial Power (W)
Value (use IEC62 code)
Ordering Data
Tolerance (use IEC62 code)
Sa^Jmple P⁵a^%rt No. ^{K 10%}
SP20F 1800 J LF XXX
Packing
I^GR^eCⁿT^e_Iy^rp^ae^{l Not}_T^e _{ape 4000/reel Standard}
R^TTe^Ec^lo^ecg^tn^roiⁿti^ico^sn^{reserves the right to make changes in product specification without notice or liability.}
U^AlL^{l i}=^nfU^orL^m14^a1^ti2^onreⁱc^so^sg^un^bi^js^ee^cd^{t t}(^oop^Tt^Tio^En^la^el^cc^trh^oaⁿrⁱa^cc^st^’e^ors^w)^{n data and is considered accurate at time of going to print.}
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
TR©eeleTspiThsotEanlen:ct+er4oR4na(i0cns)g1pe6lc70 822181 · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
(First three significant figures plus fourth digit multiplier)
96 ^{Example: 2203 = 220 Kohm}
51R0 = 51 ohm
www.ttelectronicsresistors.com
Issue B · 03.02
07.14