TOKEN
PR Anti-Corrosive Chip Resistor
Anti-Corrosive
Precision
Chip Resistors
(PR) Anti-Corrosive Series of Moisture-Proof
Chip Resistors for High Humidity Precision Applications
Preview
Token Electronics has introduced a new line of anti-corrosive precision chip resistors that eliminates moisture
concerns associated with typical Nickel Chromium precision resistors. The PR Series is an ideal low-cost
alternative for expensive and hard-to-find tantalum nitride chip resistors.
A proprietary passivation layer is introduced between the nichrome resistive element with a superior alumina
substrate and the epoxy overcoat to ensure stable performance and long life in the harshest and wettest
environments.
In MIL-STD-202F method moisture testing, the PR Series
demonstrated excellent stability over time and no significant
shift in resistance after the 1000 hour life test. Applications require
operation in humid or high moisture environments or have
experienced corrosion problems with standard Nichrome thin film
resistors. For those applications, long term extended humidity testing
is essential before a part can be considered for usage on a design.
Designated the PR Series, it is available in industry standard 0402, 0603, 0805, 1206, 2010, to 2512 sizes and
has a resistance range from 10 Ω to 1M Ω, with tolerances tight to ± 0.10% and TCRs as low as 25ppm/°C. The
PR Series has an operating temperature range of -55°C to +155°C. The PR chip also offers outstanding electrical
stability and environmental stability performance that would be expected from a precision resistor.
The standard packaging is tape and reel in 4Kpc, 5Kpc, and 10Kpc quantities depending on part size. Most
sizes and resistance values are also offered in stock, making them an outstanding choice to support quick turn
shortages. Pricing varies with size, tolerance, and TCR and ranges in reel quantities.
The chip PR series is lead-free and RoHS compliant. Detailed specifications, both mechanical and electrical,
please contact our sales representative for more information.
Features
- Tight Tolerance down to ± 0.1%
- Wide R-Value Range 10 Ω ~ 1Meg Ω
- Extremely Low TCR down to ±25 PPM/°C
- Special Passivated NiCr Film for Anti-Acid and Anti-Damp
- Long Term Life Stability with Advance Thin Film
Technology
- Demonstrated the Anti-CorrosionClaims
Characterized by Ta
2
N
Version 2010
http://www.token.com.tw/
Applications
- Telecommunication Device
- Automotive,Medical Equipment
- Outdoor Electronic Applications
- High-end Multimedia Electronics
- Automatic Equipment Controller Devices
- High-end Computer, Industrial Equipment
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TOKEN
Packaging
Test Item
Short Time Overload
Thermal Shock
Load Life
Humidity
(Steady State)
Resistance to
Dry Heat
Resistance to
Soldering Heat
Solderability
PR Anti-Corrosive Chip Resistor
Specification
Size 0603/0805/1206/2010/2512
≤ ±0.02%
≤ ±0.02%
≤ ±0.05%
Test Method
RCWV*2.5 or Max Overloading Voltage,
2 seconds
MIL-STD-202F Method 107G
-55°C~125°C, 100 cycles
MIL-STD-202F Method 108A RCWV,
70°C, 1.5 hours ON, 0.5 hours OFF,
total 1000~1048 hours
MIL-STD-202F Method 103B 40°C,
90~95%RH, RCWV 1.5 hours ON, 0.5
hours OFF, total 1000~1048 hours
JIS-C-5202-7.2
1000 hours @ +155°C without load
MIL-STD-202F Method 210E
260±5°C, 10±1seconds
MIL-STD-202F Method 208H
245°C±5°C, 3±0.5(sec)
Size 0402
≤ ±0.1%
≤ ±0.1%
≤ ±0.25%
≤ ±0.05%
≤ ±0.05%
≤ ±0.02%
95%min coverage
≤ ±0.5%
≤ ±0.5%
≤ ±0.1%
Note: Storage Temperature: 25±3°C; Humidity: <80%RH
How to Order
PR
02
D
TR
C3
1002
Part Number
Dimensions(L×W) (mm)
Code
02
03
05
06
10
12
Code
B
C
D
Dimensions(L×W)
1.00×0.50mm
1.60×0.80mm
2.00×1.25mm
3.00×1.50mm
4.90×2.40mm
6.30×3.10mm
Resistance Tolerance
±0.10%
±0.25%
±0.50%
Package
Taping Reel
Bulk
EIA
0402
0603
0805
1206
2010
2512
TCR (ppm/°C)
Code
C3
C2
Marking
±25ppm/°C
±50ppm/°C
Resistance
100Ω
2200Ω
10000Ω
49900Ω
100000Ω
Marking
Standard Marking for E96/E24
No Marking
Resistance (Ω)
Code
1000
2201
1002
4992
1003
Resistance Tolerance (%)
Marking
Code
N
Package
Code
TR
P
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Version 2010
http://www.token.com.tw/
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