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Technical content
Page 1
SRT Resistor Technology
Power Chip Resistors
Type: CRW
Sizes: 1210, 1216, 2010, 2040, 2512, 4020
Features:
- Chip Resistors in Thickfilm
- Contact areas Nickel-barrier/ tinned
- RF – versions with air-abrasive trimming
- Improved pulse power rating untrimmed
Dimensions:
| Sizes | L | B | D | C |
| 1210 | 3.2 +0.2/-0.05 | 2.5 +0.2/-0.05 | 0.5 +0.2/-0.1 | 0.8 ±0.2 |
| 1216 | 3.2 +0.2/-0.05 | 4.1 +0.2/-0.05 | 0.5 +0.2/-0.1 | 0.8 ±0.2 |
| 2010 | 5.1 +0.2/-0.05 | 2.5 +0.2/-0.05 | 0.6 +0.2/-0.1 | 1.2 ±0.2 |
| 2040 | 5.1 +0.2/-0.05 | 10.2 +0.2/-0.05 | 0.6 +0.2/-0.1 | 1.2 ±0.2 |
| 2512 | 6.3 +0.2/-0.05 | 3.50 +0.2/-0.05 | 0.6 +0.2/-0.1 | 0.9 ±0.2 |
| 4020 | 10.2 +0.2 | 5.1 +0.2 | 0.6 +0.2/-0.1 | 0.9 ±0.2 |
L = Length. B = Width. D = Thickness. C = Width of wrap around (in mm)
Packaging:
Bulk in plastic bags or tubes – minimum quantity 100 pieces per value Blistertape acc. to IEC 60286-3 – minimum 1000 pieces per value Reel diameter 180 mm or 330 mm
Ordering Data:
Type – value – tolerance – TCR – packaging Example: CRW 1216 100 R ± 1 % TK50 Tape 180 mm
If no requirements for TCR and taping are given, the standard value (highest value in table) will be supplied and packaging is bulk
SRT Resistor Technology GmbH Ostlandstr. 31
Issue 09/04
Fon:
++49 / 09103 / 79520
Fax:
++49 / 09103 / 5128
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom D-90556 Cadolzburg
Mail to: webmaster@srt-restech.de
Tel . + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-Mail. sales@willow.co.uk Web. www.willow.co.uk
Internet: www.srt-restech.
Page 2
SRT Resistor Technology
Power Chip Resistors
Type: CRW
Sizes: 1210, 1216, 2010, 2040, 2512, 4020
Technical data – depending on size:
| Ranges / Tolerances / TCR2) / VCR | ||||||
| OR1 – 1R | TC250 5/10/20% | TC250 5/10/20% | TC250 5/10/20% | TC250 5/10/20% | TC250 5/10/20% | TC250 5/10/20% |
| 1R – < 100R | TC100/250 1/…/20% | TC100/250 1/…/20% | TC100/250 1/…/20% | TC100/250 1/…/20% | TC100/250 1/…/20% | TC100/250 1/…/20% |
| 100R – 100M | TC50/100 1/.../20% | TC50/100 1/.../20% | TC50/100 1/.../20% | TC50/100 1/.../20% | TC50/100 0.5/.../20% | TC50/100 0.5/.../20% |
1) Load acc. To DIN 45921 on PCB. limited by temperature of solder area (competitor data often too high) With suitable heat dissipation higher power rating is possible. Diagrams for over temperatures available on request. 2) TC/50: Temperature range + 25°C...+ 125°C Zero-Ohm-Jumper: :< 50 mOhm. TCR max. + 4000 M at 2512/4020: Meander structure with higher working voltage in bracket. Higher power dissipation, other sizes and specifications on request.
Technical data – general:
| Temperature range | -55°C ... +155°C |
| Climatic category acc. to IEC 60068 | 55/155/56 |
| Solderability acc IEC 60068 T2-20. Ta Meth. 1 | 235°C 2 s |
| Max. soldering temperature acc. IEC 60068 T2-20 Tb M. 1A | 260°C 10 s |
| Long term stability | 10R – 100M | <10R |
| Storage 125°C/1000h | <0.5% | <1% |
| Storage 155°C/1000h | <1% | <2% |
| Load P /70°C/1000h 70 | <1% | <2% |
| Short term overload | <0.25% | <0.5% |
| Damp heat (56d/40°C/96%) | <0.5% | <1% |
Data not specified according CECC 40401-802
SRT Resistor Technology GmbH
Ostlandstr. 31
Issue 09/04
Issue 09/04
Fon:
++49 / 09103 / 79520
Fax:
++49 / 09103 / 5128
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom
D-90556 Cadolzburg
Mail to: webmaster@srt-restech.de
Tel . + 44 (0) 1342 835234 Fax. + 44 (0) 1342 834306 E-Mail. sales@willow.co.uk Web. www.willow.co.uk