POWER TYPE RESISTORS
TECHNOLOGY OF TOMORROW
METAL FILM
STANDARD
SN 3A • SN 3D
W
NE
POWER TYPE
RESISTORS
STRUCTURE
1
2
3
4
5
6
7
Ceramic core
Trimmed metal film
Steel cap
(Cu, Sn plated)
Lead wire
Welding joint
Expoxy resin overcoating
Marking
IDENTIFICATION
PRODUCT CODE
SN 3A, SN 3D
COATING COLOR
Light Grey
MARKING
Color Code
(R-value and
tolerance)
All these products have
Pb-free terminations
and meet RoHS requirements
TYPE DESIGNATION (HOW TO ORDER)
SN
PRODUCT CODE
3A
POWER RATING
3A: 1W
3D: 2W
D
T.C.R.
C: ±50ppm/K
D: ±100ppm/K
L: ±200ppm/K
C
TERMINATION
SURFACE
MATERIAL
C: SnCu
1002
NOMINAL
RESISTANCE
D, F: 4 digits
G: 3 digits
F
Specifications given herein may be changed at any time without prior notice.
Please confirm technical specifications before you order and/or use.
RESISTANCE
TOLERANCE
D: ±0.5%
F: ±1%
G: ±2%
FEATURES
■
Metal film resistors for high power
■
High precision and low T.C.R. metal film resistor
Excellent long term stability
■
Meets or exceeds IEC 60 115-1, JIS C 5201-1
■
Rated ambient temperature: +70°C
■
Operating temperature range: -55°C ... +155°C
DIMENSIONS (mm)
TYPE
SN 3A
SN 3D
L
14.1 ± 2
16.5 ± 2
C Max.
18.3
21.5
D
4.8 ± 1
8.4 ± 1
d (nominal)
1.0
l
38 ± 3
DERATING CURVE
Ambient temperature (°C)
RATING
TYPE
T.C.R.
(ppm/K)
C (±50)
D (±100)
L (±200)
D (±100)
L (±200)
POWER
RATING*
MAX.
WORKING
VOLTAGE
MAX.
OVERLOAD
VOLTAGE
DIELECTRIC
WITHSTANDING
VOLTAGE
RESISTANCE RANGE
E24 • E192
D (±0.5%)
–
10
Ω
... 1 MΩ
–
10
Ω
... 1.5 MΩ
–
E24 • E96
F (±1%)
10
Ω
... 1 MΩ
10
Ω
... 1 MΩ
4.99
Ω
... 10
Ω
10
Ω
... 1.5 MΩ
–
E24
G (±2%)
–
10
Ω
... 1 MΩ
1
Ω
... 10
Ω
10
Ω
... 1.5 MΩ
5.1
Ω
... 10
Ω
SN 3A
1W
500 V
2W
1000 V
1000 V
SN 3D
* For resistors operated in ambient temperature over +70°C, power rating shall be derated like shown in above „DERATING CURVE“.
EUROPE GmbH • Kaddenbusch 6 • D-25578 Dägeling / ITZEHOE • PHONE: +49 (0) 48 21 / 89 89-0 • FAX: +49 (0) 48 21/ 89 89 89 • Internet: www.koaeurope.de
Revision:
12. Dec.
2005
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