WCR1206-47KFI Welwyn Components, WCR1206-47KFI Datasheet - Page 2

• Manufacturer Part Number: WCR1206-47KFI
• Description: RESISTOR, 1206 47K
• Manufacturer: Welwyn Components
• Series: WCRr

Specifications of WCR1206-47KFI

• Resistance: 47kohm
• Resistance Tolerance: ± 1%
• Power Rating: 250mW
• Voltage Rating: 100V
• Resistor Element Material: Thick Film
• Resistor Case Style: 1206
• No. Of: RoHS Compliant
• Temperature Coefficient: ± 200ppm/°C

16
General Purpose Surface
Mounted Resistors
WCR Series
Construction
The chips have a high alumina substrate (96% minimum) with
a ruthenium oxide resistance element and silver palladium,
nickel and solder plated terminations. A glazed protection
coat is applied to the resistive element (See Fig. 1)
Terminations
Solderability
Strength
Marking
All resistors are individually marked with 3 digits. The first two
digits are the significant figures and the third defines the
number of added zeros. Jumpers are marked 000. Type 0402
have no marking.
E96 1% components that can not be marked with 4 digits
will be marked with a standard 3 digit code. Details can be
supplied upon request.
Solvent Resistance
The protective epoxy lacquer and marking are resistant to all
normal industrial cleaning fluids suitable for printed circuits.
Performance Data
Packaging
All chips are tape mounted and supplied on standard 8mm
tape reel, as IEC publication 286-3.
180mm (7 inch) reel carries 5,000 pieces. (Except 0402 carries
10,000 pieces)
250mm (10 inch) reel carrying 10,000 pieces can be supplied
by agreement.
Chips are taped element side up as standard.
If chips are to be taped face down please specify.
Type 2010 – 4,000 pcs
Type 2512 – 4,000 pcs
© Welwyn Components Limited
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Load: 1000 hrs at 70°c
Shelf life: 12 months at room temp.
Derate linearly to zero from 70°C
Short term overload (6.25 x rated power) ∆R%
Max voltage
Climatic
Climatic category
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
Noise
Insulation resistance
Voltage proof
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2.
The terminations meet requirements of
IEC 68.2.21.
Bedlington, Northumberland NE22 7AA, UK
ohms
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
volts
volts
4R7 - 100K:1
>100K:2
0402
100
100
0.2
2.5
2
3
3
1
1
1R - 100K:1
>100K:2
0603
100
500
0.2
2.5
2.5
3
3
1
1
Figure 1
Table 1
Bulk cassette pack available
Chip Resistor Labstock For Designers
WCR chip resistors are available in a special package
containing 50 each of the E24 values. Please contact the sales
desk for full details of this excellent solution for designers and
your prototype build requirements.
1R - 100K:1
>100K:2
>100K, ≤1M0
>100R, ≤10K
>10K, ≤100K
Solder Plating
value ohms
Resistance
0805
Maximum Change
Nickel Barrier
200
500
0.2
2.5
2.5
Dipped Conductor
3
3
1
1
≤100R
>1M0
zero at 125°C
Silver
Palladium
see table 1
55/125/56
96% min Alumina Substrate
> 1G
1R - 100K:1
>100K:2
1206
400
500
0.2
2.5
2.5
3
3
1
1
Welwyn Components
Epoxy Melamine
Glass Dielectric
1R - 100K:1
Resistance Element
>100K:2
2010
200
500
0.2
2.5
2.5
3
3
1
1
Noise
+15
+20
+30
-10
dB
0
3% + 0.1R
Issue D · 07.03
2512
200
500
0.2
5.0
2.2
3
3
1
1