SQP [TTELEC]
Ceramic Case Resisters - Wirewound / Metal Oxide; 陶瓷表壳串电阻 - 绕线/金属氧化物型号: | SQP |
厂家: | TT Electronics |
描述: | Ceramic Case Resisters - Wirewound / Metal Oxide |
文件: | 总2页 (文件大小:77K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
Ceramic Case –
Wirewound / Metal Oxide
Resistors
Welwyn Components
SQP Series
• 2 watts to 20 watts*
• Resistance 0R1 to 100K
• High overload capability
• RoHS compliant
Electrical Data
SQP2
2
SQP3
SQP5
SQP7/7S
SQP10
SQP15
SQP20
Power rating at 70˚ C
Resistance range
watts
3
5
7
10
15
20
Wirewound
0R1-50R
0R1-
0R1-
0R1-100R
0R1-
0R1-
0R1-
100R
100R
(7 & 7S)
200R
200R
500R
Metal Oxide
51R-
47K
100R-
47K
110R-
47K
110R-47K
220R-
68K
220R-
68K
510R-
100K
(Ohms)
(7 Only)
Limiting element voltage
Thermal impedance
Isolation voltage
volts dc or ac rms
150
50
300
45
350
30
500 (7S-350)
750
23
1000
16
1000
13
˚ C/watt
volts
28
1000
TCR
ppm/˚ C
%
WW types, <0R68, 1700ppm; 0R68, 200ppm: MO types all values 350ppm
Resistance Tolerance
Standard Values
5(J)
E24 preferred
-55 to +155˚ C
Ambient temperature range
˚ C
* Other styles (radial/pluggable); sizes, and 30, 40, 50 W types are available to special order.
Physical Data
Type
L
W
H
d
Weight
gm
Max
Max
Max
Nom
d nom 0.05
SQP2
18.5
22.5
22.5
22.5
36.0
26.0
50.0
50.0
61.0
7.5
8.5
10
7.5
8.5
10
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
2.2
3.5
SQP3
SQP4
5.0
H
SQP5
10
10
5.0
SQP7
10
10
8.2
W
SQP7S
SQP10
SQP15
SQP20
10
10
6.0
35 1.0
L
35 1.0
10
10
11.0
17.4
25.0
Min bend radius, all types 1.6 mm
13.5
14.5
13.5
14.5
Packaging
Our standard packaging for SQP Series is bulk pack
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
A subsidiary of
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
TT electronics plc
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Issue D · 01.07
70
Ceramic Case –
Resistors
Wirewound / Metal Oxide
SQP Series
Welwyn Components
Construction
A high purity ceramic rod, with force fit end caps onto which is wound a wire element: or a deposited metal oxide film
(depending on value). The element is fitted into a ceramic case with fireproof insulation cement.
Termination Details
Material
Solderability The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2
Strength The terminations meet the requirements of IEC 86.2.21
The tinned copper lead wires are internally welded to the resistance element end caps.
Performance Data
Maximum
5% +0.05
Load at rated power (1000hrs at 70˚C)
Derating from rated power at 70˚ C
Short term overload *
R%
See Graph
R%
R%
R%
R%
2% +0.05
Damp heat steady state (56 days, 40˚C, 90% RH)
Temperature rapid change
2% +0.05
2% +0.05
Resistance to solder heat
1% +0.05
Pulse handling
Data available by request
*(Wirewound:: the lower of 5x rated power, or 2.5x LEV for 5 secs. Metal Oxide:: the lower of 6.25x rated power, or 2.5x LEV for 5 secs)
P
P
118%
100%
100%
Wirewound types
Metal Oxide types
50%
0%
50%
0%
T˚C
240
T˚C
240
-30
25
70
155
-30
70
155
Marking
Type reference, resistance value and tolerance are legend marked onto the upper surface.
Flammability
The resistor will not burn or emit incandescent particles under any condition of applied temperature or
overload.
Solvent resistance
The body protection and marking are resistant to all normal industrial solvents suitable for printed
circuits.
Ordering Procedure
Example: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack option-
B5
Model
SQP3 –
1K2
J
CODE
Family
Qty/
Carton
Value (use IEC62 code)
B5
SQP2,3,5
5000
Tolerance (use IEC62 code)
Bulk
Pack
J
5%
B15
B1
SQP7,10
1500
1000
SQP15,20
Packing
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
IssueD· 01.07
71
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