SMT-Precision-R-Networks Type: SCN
Sizes: SOT 143, SOT 223, SO 8, SO 14, SO 16, SO 20L
Features:
• Thinfilm (NiCr) on passivated Si- or Alumina-substrate • Standard types and custom networks
• Relative-data (tolerance, TCR and stability) much closer than with single resistors
Sizes:          Example
L = Length, B = Width, D = Thickness, C = Width wrap around (in mm) (detailed drawings on request)
absolute relative
Standard versions:
Resistor bridges, single resistors and current-divider (detailed data on request)
Inquiry and ordering data:  Size
Number and connection of resistors Resistance values
Tolerance and TCR (absolute and relative) Power rating
Temperature range Stability requirements
Packaging (bulk, tape/reel, magazine)
Size  L      B      D  n SOT 143      3.0      2.5    1.1      4 SOT 223      6.5  7.0    1.6      4 SO 8      5.1      6.0    2.0  8 SO 14  8.9      6.0    2.0 14 SO 16
10.2
6.0
2.0
16
SO 20L 13.0 10.5 2.65 20
Willow Technologies Ltd.  Shawlands Court,  Newchapel Road,  Lingfield,  Surrey,  RH7 6BL,  United Kingdom
Tel . + 44 (0) 1342 835234  Fax. + 44 (0) 1342 834306    E-Mail.uk    Web. uk
SMT-Precision-R-Networks Type: SCN
Sizes: SOT 143, SOT 223, SO 8, SO 14, SO 16, SO 20L
Technical data – depending on size
Size
SOT 143
SOT 223
SO 8
So 14
SO 16
SO 20L
Power rating P 70  (P 125 = 0 mW) 125 250 250 250 250 500 Resistance range
10R / 1M
10R / 5M
10R / 5M
10R / 10M
10R / 10M
10R / 10M
Technical data - general:
Working voltage U_, U eff  100 V Silizium, 250 V Keramik Tolerance absolute                  relative
± 0.05; ± 0.1; ± 0.25; ± 0.5; ± 1% < 0.0251) ; < 0.05; < 0.1%
TCR        absolute                  relative
± 51), ± 102), ± 25, ± 50, x 10-6/K < 11), < 22), < 5, < 10-6/K
Operating temperature range - 55°C ... + 125°C Storage temperature range
- 55°C ... + 155°C Climatic category acc. to IEC 60068
25/125/56
Solderability IEC 60068 T2-20, Ta Meth. 1  235°C 2s Max. soldering temperature IEC 60068 T2-20, Tb Meth. 1A 260°C 10s
Long term stability Tol.< 0.25%
Tol.> 0.25%
1000 h 10000 h 1000 h 10000 h Storage 125°C/1000h          absolute                                              relative < 0.02% < 0.005% < 0.06% < 0.02% < 0.05% < 0.01% < 0.1% < 0.05% Storage 155°C/1000h          absolute                                              relative < 0.1% < 0.05%
< 0.2% < 0.1% < 0.2% < 0.1%
< 0.5% < 0.2% Damp heat                          absolute (56d/40°C/96%)                  relative
< 0.05% < 0.01%
< 0.10% < 0.05%
1) Temperature range      0 … + 70°C 2)
Temperature range  –25 … + 125°C
Issue 01/03    Willow Technologies Ltd.  Shawlands Court,  Newchapel Road,  Lingfield,  Surrey,  RH7 6BL,  United Kingdom    Tel . + 44 (0) 1342 835234  Fax. + 44 (0) 1342 834306    E-Mail.uk    Web. uk

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