Datasheet
CHM/CRM-Series
Precision High-Value Chip Resistors
Sizes: 0805, 1206, 1210, 2010, 2512, 4020
Features:
•
•
•
•
•
•
Meander structured high value chip resistors in thick film technology
Low temperature and voltage dependency
High working voltage up to 6000 V
Suitable for high vacuum applications – no organics
High temperature application up to 300°C possible (CHM-HT)
Non-magnetic (CHM only)
Terminations:
•
•
CHM: PtAg for conductive glueing and soldering (non-magnetic, high temp. application)
CRM: Nickel-barrier / matte Tin
Dimensions:
Size
0805
1206
1210
2010
2512
4020
L
2.00
+0.15/-0.05
3.20
+0.15/-0.05
3.20
+0.15/-0.05
B
1.25
+0.15/-0.05
1.50
+0.2/-0.05
2.50
+0.2/-0.05
D
0.40
+0.15/-0.05
0.40
+0.15/-0.05
0.50
+0.15/-0.05
C
0.3
+0.2/-0.1
0.3
+0.2/-0.1
0.8
±
0.2
B
L
D
5,10
+0,15/-0,05
6.30
+0.15/-0.05
10.20
+0.20/-0.05
2,50
+0,2/-0,05
3.50
+0.2/-0.05
5.10
+0.2/-0.05
0,60
+0,20/-0,1
0.60
+0.15/-0.05
0.60
+0.20/-0.1
1,2
±
0,2
0.9
±
0.2
0.9
±0.2
C
L = Length, B = Width, D = Thickness, C = Width of wrap around (in mm)
Packaging:
Bulk in plastic bags – minimum quantity 30 pieces per value
Embossed carrier tape acc. to IEC 60286-3 – minimum 500 pieces per value
Reel diameter 180 mm or 330 mm
Ordering Data:
Type – value – tolerance – TCR – packaging
Example: CHM 2512 10G
±10%
TCR 100 Tape 180 mm
Not trimmed parts are indicated by the extension “NA” in the order code:
Type – value – tolerance – NA – TCR - packaging
Example: CHM 2512 10G
±10%
NA TCR 100 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. Standard measuring voltage is 10V. Different voltages on request
and agreement (specify explicitly).
Specifications subject to change without notice
Issue 01-2012
Fon:
Fax:
E-mail:
Internet:
+49 (0)9103 / 7952-0
+49 (0)9103 / 5128
info@srt-restech.de
www.srt-restech.de
SRT Resistor Technology GmbH
Ostlandstr. 31
D-90556 Cadolzburg
Germany
Datasheet
CHM/CRM-Series
Precision High-Value Chip Resistors
Sizes: 0805, 1206, 1210, 2010, 2512, 4020
Technical data – depending on size:
Size
Power rating P
70
(mW)
(P
155
= 0 mW)
Working voltage U_, U
eff
(V)
trimmed
untrimmed (Tol. > 5%)
0805
125
200
400
1206
250
600
1000
1210
350
800
1200
2010
500
1500
2000
2512
1000
1)
4020
1500
1)
2000
3000
4000
6000
Ranges / Tolerances /
TCR
2)
/ VCR
3)
100K – 100M
0.5/1/2/5/10%
TC25/50/100
100 ppm/V
2/5/10/20%
TC50/100/250
250 ppm/V
5/10/20%
TC250/500
500 ppm/V
10/20/30%
TC2000
2000 ppm/V
20/30%
TC3000
5000 ppm/V
0.5/1/2/5/10%
TC25/50/100
50 ppm/V
2/5/10/20%
TC50/100/250
100 ppm/V
5/10/20%
TC50/100/250
250 ppm/V
10/20/30%
TC
250/500/1000
1000 ppm/V
10/20/30%
TC1000/2000
2000 ppm/V
20/30%
TCR/VCR
on request
0.5/1/2/5/10%
TC25/50/100
50 ppm/V
1/2/5/10/20%
TC25/50/100
50 ppm/V
2/5/10/20%
TC25/50/100
100 ppm/V
5/10/20/30%
TC
250/500/1000
500 ppm/V
5/10/20/30%
TC1000/2000
1000 ppm/V
20/30%
TCR/VCR
on request
0.5/1/2/5/10%
TC25/50/100
25 ppm/V
1/2/5/10/20%
TC25/50/100
50 ppm/V
2/5/10/20%
TC25/50/100
100 ppm/V
5/10/20/30%
TC100/250/500
500 ppm/V
5/10/20/30%
TC500/1000
1000 ppm/V
20/30%
TCR/VCR
on request
0.5/1/2/5/10%
TC25/50/100
10 ppm/V
1/2/5/10/20%
TC25/50/100
25 ppm/V
2/5/10/20%
TC25/50/100
50 ppm/V
5/10/20/30%
TC100/250/500
100 ppm/V
5/10/20/30%
TC250/500
500 ppm/V
10/20/30%
TCR/VCR
on request
0.25/ … /10%
TC25/50/100
5 ppm/V
0.5/ … /20%
TC25/50/100
10 ppm/V
1/2/5/10/20%
TC25/50/100
10 ppm/V
2/5/10/20/30%
TC100/250/500
50 ppm/V
5/10/20/30%
TC250/500
250 ppm/V
10/20/30%
TCR/VCR
on request
>100M – 1G
>1G – 10G
>10G – 100G
>100G – 1T
>1T – 10T
1)
2)
–
At continuous power dissipation the dimensions of solder-pads have to secure sufficient heat-conduction
TCR: in ppm/K; +25°C...+125°C; TC25/50 and value >100G: +25°C...+85°C
3)
VCR: typical values, all negative, not for all TCR values available
Lower values of tolerance, TCR and VCR as well as higher resistance values on request and agreement
Technical data – general:
Operating temperature range
Climatic category acc. to EN 60068-1
Solderability acc. to EN 60068-2-58 (lead-free and lead-containing)
4)
Max. soldering temperature acc. to EN 60068-2-58
-55°C ... +155°C
55/155/56
250°C, 3s
260°C, 10s
Extended temperature range up to 300°C possible-
see datasheet: “High temperature chip resistors” CHM-HT
Long term stability
Load Life 70°C/1000h
Storage 125°C/1000h
Max voltage/1000h
4)
< 1G
< 0.25%
< 0.5%
< 0.5%
< 10G
< 0.5%
< 1%
< 1%
≥
10G
< 1%
< 2%
< 2%
Up to 6 months after shipment; longer at storage in Nitrogen
Data not specified according to EN 140401-802 (CECC 40401-802)
Specifications subject to change without notice
Issue 01-2012
Fon:
Fax:
E-mail:
Internet:
+49 (0)9103 / 7952-0
+49 (0)9103 / 5128
info@srt-restech.de
www.srt-restech.de
SRT Resistor Technology GmbH
Ostlandstr. 31
D-90556 Cadolzburg
Germany
