WRM0204Z-1K0DI [ETC]
MELF Resistors; MELF电阻型号: | WRM0204Z-1K0DI |
厂家: | ETC |
描述: | MELF Resistors |
文件: | 总3页 (文件大小:238K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
MELF
Resistors
WRM Series
·
·
·
·
High reliability
Predictable pulse handling capability
Tolerances down to 0.1%
TCR down to 5 ppm/°C
Electrical Data
WRM 0102
WRM 0204
WRM 0207
Power rating at 70°C
Resistance range
watts
ohms
volts
0.125
0.25
0.4
4R7 - 110K
150
R22 – 5M1
200
R22 – 10M
250
Limiting element voltage
TCR
ppm/°C
%
50
5,10,15, 25, 50, 100
15, 25, 50, 100
Resistance tolerance
Standard values
1
0.1, 0.25, 0.5, 1.0, 2, 5
E24 & E96
200
Thermal impedance
Ambient temperature range
Insulation resistance
k/W
°C
250
140
-55 to +125
>1010
ohms
Physical Data
Dimensions (mm) and weight (g)
L
Type
L
D
max
D1
max
K
min
Weight
max
D1
L1
D
WRM 0102
WRM 0204
WRM 0207
0.01
0.02
0.08
2.2
3.7
6.1
1.35
1.55
2.4
1.3
1.55
2.4
0.3
0.5
0.5
K
Construction
A metal film is deposited onto a high dissipation ceramic
Terminations
Material
Plated steel cap.
former to which tin plated teminating caps are fitted.
Solderability The pure tin finish produces ageing free
contacts on which low melting solders can
be used. Dipped area shall be covered with
a smooth and bright solder coating after
3 seconds immersion at 215°C.
The resistor is adjusted to value by a helical cut in the film
and the body is protected by a lacquer coating.
Marking
Resistance values are colour coded with four bands,
three indicating value and one indicating the multiplier.
(Note this describes standard marking, but certain values
may still be supplied with the addition of a tolerance band
following the multiplier.)
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuit boards.
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
09.13
© TT electronics plc
MELF
Resistors
WRM Series
TCR and Tolerance Range
Type
TCR
Tolerance
Reference
5%
2%
1.0%
0.5%
0.25%
0.1%
50ppm
–
–
–
–
–
WRM0102
WRM0204
4R7 - 110K
–
–
–
–
–
–
100ppm
50ppm
R22 – R91
–
1R – 5M1
10R – 1M6
22R – 332K
43R – 332K
25ppm
15ppm
10ppm
05ppm
–
–
–
–
–
–
–
–
4R7 - 500K
10R – 500K
22R – 402K
22R – 221K
22R – 221K
100R – 100K
43R – 332K
43R – 221K
43R – 221K
100R – 100K
–
–
–
10R – 221K
–
–
–
–
–
–
R22 – R91
–
100ppm
1R-10M
10R - 1M
–
WRM0207
25ppm
15ppm
–
–
–
–
10R – 680K
51R1 - 10K
51R1 - 330K
51R1 - 10K
100R - 100K
100R - 10K
* TC 10ppm & 5ppm is specified over the temperature range -10°C to +85°C.
Performance Data
Test
Results ∆ R/R
0204 & 0207: 10R - <75R
& >100K - 332K
0102: 4R7 - 110K, 0204 &
0207: R22 - <10R & >332K - 10M
0204 & 0207: 75R - 100K
Short time overload*
Bending test*
≤ 0.05% + 0.01 Ω
≤ 0.05% + 0.01 Ω
≤ 0.05% + 0.01 Ω
≤ 0.05% + 0.01 Ω
≤ 0.1% + 0.01 Ω
≤ 0.1% + 0.01 Ω
≤ 0.1% + 0.01 Ω
≤ 0.1% + 0.01 Ω
≤ 0.25% + 0.05 Ω
≤ 0.25% + 0.05 Ω
≤ 0.25% + 0.05 Ω
≤ 0.25% + 0.05 Ω
Resistance to soldering heat
Temperature rapid change
Endurance*
Load life
1000h
8000 h
≤ 0.25% + 0.05 Ω
≤ 0.5% + 0.05 Ω
≤ 0.25% + 0.05 Ω
≤ 0.25% + 0.05 Ω
< 0.05 µV/V
≤ 0.25% + 0.05 Ω
≤ 0.5% + 0.05 Ω
≤ 0.5% + 0.05 Ω
≤ 0.5% + 0.05 Ω
< 0.25 µV/V
≤ 0.5% + 0.05 Ω
≤ 1.0% + 0.05 Ω
≤ 1.0% + 0.05 Ω
≤ 1.0% + 0.05 Ω
< 3 µV/V
Climatic sequence*
Damp heat steady state*
Current noise
Solderability
Dipped area shall be covered with a smooth
and bright solder coating of at least 96%
< 0.5 . 106/V
Voltage coefficient
Voltage proof
No flashover or breakdown
* Resistors to be mounted on a PC-board according to IEC 115-1, clause 4.27.1
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
09.13
© TT electronics plc
MELF
Resistors
WRM Series
Single Pulse
Maximum Pulse Load
WRM 0102
WRM 0204
WRM 0207
100
W
10
1
0,1
10 µs
100 µs
1 ms
10 ms
100 ms
1 s
10 s
Pulse Duration ti
Continuous Pulses
Maximum Pulse Load
WRM 0102
WRM 0204
WRM 0207
100
W
10
1
0,1
10 µs
100 µs
1 ms
10 ms
100 ms
1 s
10 s
Pulse Duration ti
Packaging
The WRM 0102 and 0204 resistors are supplied reeled on 8mm blister tape.
WRM 0207 resistors are supplied on 12mm blister tape.
Packaging complies with the requirements of IEC 286-3.
Ordering Procedure
Example: WRM0204 at 1 kilohm, 1% tolerance and 50ppm/ºC TCR on a reel of 3000 pieces -
Type
Size
TCR
WRM
0204
C
-
1K0
F
I
Packing
Standard
0102 3000 / reel (7”)
0204 3000 / reel (7”)*
0207 1500 / reel (7”)
Z
100ppm/ºC
50ppm/ºC
25ppm/ºC
Y
T
15ppm/ºC
10ppm/ºC
5ppm/ºC
I
Tape
C
D
V
* High precision parts may be supplied on 1000 piece reels – please enquire
Value (use IEC62 code)
Tolerance (use IEC62 code)
B
0.1%
D
F
0.5%
1%
G
J
2%
5%
C
0.25%
Note: F or zero-ohm versions order WRM0204C-R00FI or WRM0207C-R00FI
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
09.13
© TT electronics plc
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