Rohs Compliant

Construction

Metal Film Precision Resistor Metal Film Precision Resistor Construction
1 Insulation Coating 4 Electrode Cap
2 Trimming Line 5 Resistor Layer
3 Ceramic Rod 6 Marking

Dimensions (Unit: mm)

Type L ΦD K min. Weight (g)
(1000 pcs)
Packaging
180mm (7")
SMC0204 3.500.20 1.400.15 0.5 18.7 3,000EA
SMC0207 5.900.20 2.200.20 0.5 80.9 2,000EA

Features

  • Excellent overall stability
  • Tight tolerance down to 0.05%
  • Extremely low TCR down to 5 PPM/C
  • High power rating up to 1 Watts

Applications

  • Automotive
  • Telecommunication
  • Medical Equipment
  • Measurement/Testing Equipment

Derating Curve

Derating Curve

Standard Electrical Specifications

Item Power
Rating
at 70C
Operating
Temp.
Range
Max.
Operating
Voltage
Max.
Overload
Voltage
Resistance Range TCR
PPM/C
Type 0.05% 0.1% 0.25% 0.5% 1% 5%
0204 1/4W -55 ~ +155C 200V 400V 49.9Ω-600KΩ ±5
49.9Ω-600KΩ ±10
49.9Ω-600KΩ ±15
10Ω-1MΩ 10Ω-4.7MΩ ±25
10Ω-1MΩ 1Ω-1MΩ 0.2Ω-10MΩ ±50
- 0.1Ω-10MΩ ±100
Jumper: 2A 0Ω(<15mΩ) -
0207 1/2W -55 ~ +155C 300V 500V 49.9Ω-1MΩ ±5
49.9Ω-1MΩ ±10
49.9Ω-3MΩ ±15
20Ω-1MΩ 10Ω-3MΩ 10Ω-4.7MΩ ±25
10Ω-1MΩ 1Ω-1MΩ 0.2Ω-10MΩ ±50
- 0.1Ω-10MΩ ±100
Jumper: 4A 0Ω(<15mΩ) -

High Power Rating Electrical Specifications

Item Power
Rating
at 70C
Operating
Temp.
Range
Max.
Operating
Voltage
Max.
Overload
Voltage
Resistance Range TCR
PPM/C
Type 0.1% 0.25% 0.5% 1% 5%
0207 1W -55 ~ +155°C 350V 700V 49.9Ω-100KΩ ±15
10Ω-1MΩ ±25
10Ω-1MΩ 1Ω-1MΩ 0.2Ω-10MΩ ±50
- 0.1Ω-10MΩ ±100

Environmental Characteristics

Item Requirement Test Method
Temperature Coefficient of Resistance (T.C.R.) As Spec. -55°C~+125°C is the reference temperature
Short Time Overload ±(0.15%+0.05Ω) RCWV*2.5 or Max. overload voltage for 5 seconds
Insulation Resistance ≥10G Max. overload voltage for 1 minute
Endurance ±(0.5%+0.05Ω) 70±2°C, Max. working voltage for 1000 hrs with 1.5 hrs "ON" and 0.5 hrs "OFF"
Damp Heat with Load ±(1.0%+0.05Ω) 40±"2°C, 90~95% R.H. Max. working voltage for 1000 hrs with 1.5 hrs "ON" and 0.5 hrs "OFF"
Dry Heat ±(1.0%+0.05Ω) at +155°C for 1000 hrs
Bending Strength ±(0.5%+0.05Ω) Bending once for 5 seconds with 2mm
Solderability 95% min. coverage 245±5°C for 3 seconds
Resistance to Soldering Heat ±(0.5%+0.05Ω) 260±5°C for 10 seconds
Voltage Proof No breakdown or flashover 1.42 times RCWV (RMS) for 1 minute
Leaching Individual leaching area ≤5%

Total leaching area ≤ 10%
260±5°C for 30 seconds
Rapid Change of Temperature ±(0.5%+0.05Ω) -55°C to +125°C, 5 cycles

Reference Standards: IEC 60115-1 ; JIS-C 5201-1

Storage Temperature: 25±3°C; Humidity < 80%RH

How to Order: (example: 1/4W 10 OHM 1% 50PPM T/R)

0204
TYPE
  • 0204: 1/4W
  • 0207: 1/2W
  • 0207A: 1W
0100
Resistance
  • 0100: 10Ω
  • 1000: 100Ω
  • 2201: 2200Ω
  • 1001: 1KΩ
  • 1004: 1MΩ
  • R0R0: 0Ω
  • R050: 0.05Ω
  • R100: 0.1Ω
F
RESISTANCE
TOLERANCE
  • A: 0.05%
  • B: 0.1%
  • C: 0.25%
  • D: 0.5%
  • F: 1%
  • J: 5%
D
TCR
(PPM/C)
  • A: 5
  • B: 10
  • N: 15
  • C: 25
  • D: 50
  • E: 100
T
Packaging Code
  • T: Taping Reel
  • B: Bulk