Anti-Corrosive Precision Chip Resistors

(PR)

(PR) Anti-Corrosive Series of Moisture-Proof Chip Resistors for High Humidity Precision Applications Preview

Anti-Corrosive Precision Chip Resistors (PR) Series
Anti-Corrosive Precision
Chip Resistors (PR) Series
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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 :

  1. Tight Tolerance down to ± 0.1%
  2. Wide R-Value Range 10 Ω ~ 1Meg Ω
  3. Extremely Low TCR down to ±25 PPM/°C
  4. Special Passivated NiCr Film for Anti-Acid and Anti-Damp
  5. Long Term Life Stability with Advance Thin Film Technology
  6. Demonstrated the Anti-Corrosion Claims Characterized by Ta2N

Applications :

  1. Telecommunication Device
  2. Automotive,Medical Equipment
  3. Outdoor Electronic Applications
  4. High-end Multimedia Electronics
  5. Automatic Equipment Controller
  6. High-end Computer, Industrial Equipment

(PR) Surface Mount Series Dimensions (Unit: mm)

Anti-Corrosive Precision Chip (PR) Construction
Anti-Corrosive Precision Chip (PR) Construction
Moisture-Proof Precision Chip (PR) Dimensions
Moisture-Proof Precision Chip (PR) Dimensions
Codes L (Unit: mm) W (Unit: mm) T (Unit: mm) D1 (Unit: mm) D2 (Unit: mm)
PR02 (0402) 1.00±0.05 0.50±0.05 0.30±0.05 0.20±0.10 0.20±0.10
PR03 (0603) 1.55±0.10 0.80±0.10 0.45±0.10 0.30±0.20 0.30±0.20
PR05 (0805) 2.00±0.15 1.25±0.15 0.55±0.10 0.30±0.20 0.40±0.25
PR06 (1206) 3.05±0.15 1.55±0.15 0.55±0.10 0.42±0.20 0.35±0.25
PR10 (2010) 4.90±0.15 2.40±0.15 0.55±0.10 0.60±0.30 0.50±0.25
PR12 (2512) 6.30±0.15 3.10±0.15 0.55±0.10 0.60±0.30 0.50±0.25

Anti-Corrosive Precision Chip (PR) Standard Electrical Specifications

Type Power Ratingat
70°C
Operating
Temp. Range
Max
Operating Voltage
Max
Overloading Voltage
Resistance Tolerance Resistance
Range
TCR
PR02 (0402) 1/16W -55 ~ +155°C 25V 50V ±0.10%
±0.25%
±0.50%
25Ω~25KΩ ±25PPM / °C
±50PPM / °C
PR03 (0603) 1/16W -55 ~ +155°C 50V 100V ±0.10%
±0.25%
±0.50%
25Ω~332KΩ ±25PPM / °C
±50PPM / °C
PR05 (0805) 1/10W -55 ~ +155°C 100V 200V ±0.10%
±0.25%
±0.50%
10Ω~800KΩ ±25PPM / °C
±50PPM / °C
PR06 (1206) 1/8W -55 ~ +155°C 150V 300V ±0.10%
±0.25%
±0.50%
10Ω~1MΩ ±25PPM / °C
±50PPM / °C
PR10 (2010) 1/4W -55 ~ +155°C 150V 300V ±0.10%
±0.25%
±0.50%
10Ω~1MΩ ±25PPM / °C
±50PPM / °C
PR12 (2512) 1/2W -55 ~ +155°C 150V 300V ±0.10%
±0.25%
±0.50%
10Ω~1MΩ ±25PPM / °C
±50PPM / °C

Thin Film Chip Resistors (PR) Recommend Land Pattern (Unit: mm)

Anti-Corrosive Thin Film  Chip (PR) Recommend Land Pattern
Anti-Corrosive Thin Film Chip (PR)
Recommend Land Pattern
Codes A (Unit: mm) B (Unit: mm) C (Unit: mm)
PR12 (2512) 4.90 1.60 3.10±0.2
PR10 (2010) 3.60 1.40 2.50±0.2
PR06 (1206) 2.00 1.15 1.70±0.2
PR05 (0805) 1.00 1.00 1.35±0.2
PR03 (0603) 0.80 1.00 0.90±0.2
PR02 (0402) 0.50 0.50 0.60±0.2

Surface Mount Chip (PR) Packaging Quantity & Reel Specifications (Unit: mm)

Chip Resistor (PR) Packaging Quantity & Reel Specifications
Chip Resistor (PR) Packaging Quantity & Reel Specifications
Codes ΦA (Unit: mm) ΦB (Unit: mm) ΦC (Unit: mm) W (Unit: mm) T (Unit: mm) Paper
Tape (PCS)
Emboss Plastic
Tape (PCS)
PR02 (0402) 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 10,000 -
PR03 (0603) 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
PR05 (0805) 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
PR06 (1206) 178.0±1.0 60.0±1.0 13.5±0.7 9.5±1.0 11.5±1.0 5,000 -
PR10 (2010) 178.0±1.0 60.0±1.0 13.5±0.7 13.5±1.0 15.5±1.0 - 4,000
PR12 (2512) 178.0±1.0 60.0±1.0 13.5±0.7 13.5±1.0 15.5±1.0 - 4,000

Surface Mount Chip (PR) Paper Tape Specifications (Unit: mm)

Surface Mount Chip (PR) Paper Tape Specifications
Surface Mount Chip (PR) Paper Tape Specifications
Codes A B W E F P0 P1 P2 ΦD0 T
PR02 0.70±0.05 1.16±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 2.00±0.05 2.00±0.05 1.55±0.05 0.40±0.03
PR03 1.10±0.05 1.90±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.60±0.03
PR05 1.60±0.05 2.37±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05
PR06 2.00±0.05 3.55±0.05 8.00±0.10 1.75±0.05 3.5±0.05 4.00±0.10 4.00±0.10 2.00±0.05 1.55±0.05 0.75±0.05

Surface Mount Chip (PR) Emboss Plastic Tape Specifications (Unit: mm)

Surface Mount Chip (PR) Emboss Plastic Tape Specifications
Surface Mount Chip (PR) Emboss Plastic Tape Specifications
Codes A
±0.10
B
±0.10
W
±0.10
E
±0.10
F
±0.05
P0
±0.05
P1
±0.10
P2
±0.05
ΦD0
+0.10
T
±0.20
PR10 2.85 5.45 12.0 1.75 5.5 4.00 4.00 2.00 1.50 1.00
PR12 3.40 6.65 12.0 1.75 5.5 4.00 4.00 2.00 1.50 1.00

(PR) Environmental Characteristics

Moisture-Proof Chip Resistors (PR) Power Derating Curve
Moisture-Proof Chip Resistors (PR) Power Derating Curve
Test Item Specification Test Method
Size 0603/0805/1206/2010/2512 Size 0402
Short Time Overload ≤ ±0.02% ≤ ±0.1% RCWV*2.5 or Max Overloading Voltage, 2 seconds
Thermal Shock ≤ ±0.02% ≤ ±0.1% MIL-STD-202F Method 107G
-55°C~125°C, 100 cycles
Load Life ≤ ±0.05% ≤ ±0.25% MIL-STD-202F Method 108A
RCWV, 70°C, 1.5 hours ON, 0.5 hours OFF, total 1000~1048 hours
Humidity
(Steady State)
≤ ±0.05% ≤ ±0.5% MIL-STD-202F Method 103B
40°C, 90~95%RH, RCWV 1.5 hours ON, 0.5 hours OFF,
total 1000~1048 hours
Resistance to
Dry Heat
≤ ±0.05% ≤ ±0.5% JIS-C-5202-7.2
1000 hours @ +155°C without load
Resistance to
Soldering Heat
≤ ±0.02% ≤ ±0.1% MIL-STD-202F Method 210E
260±5°C, 10±1seconds
Solderability 95%min coverage MIL-STD-202F Method 208H
245°C±5°C, 3±0.5(sec)
Note: Storage Temperature: 25±3°C; Humidity: <80%RH

Anti-Corrosive Precision Chip Resistor (PR) Order Codes

PR 02 D TR C3 1002  
1234567
Part Number
Dimensions
(L×W) (mm)
02 1.00×0.50mm EIA0402
03 1.60×0.80mm EIA0603
05 2.00×1.25mm EIA0805
06 3.00×1.50mm EIA1206
10 4.90×2.40mm EIA2010
12 6.30×3.10mm EIA2512
Resistance
Tolerance(%)
B ±0.10%
C ±0.25%
D ±0.50%
Package
P Bulk
TR Taping Reel
TCR
(ppm/°C)
C3 ±25ppm/°C
C2 ±50ppm/°C
Resistance
(Ω)
1000 100Ω
2201 2200Ω
1002 10000Ω
4992 49900Ω
1003 100000Ω
Marking
  Standard Marking
for E96/E24
N No Marking