R Series: Thin Film Resistors
Thin Film Resistors
Single or Dual Edge Wrap

R Series: Thin Film Resistors
Top Side Terminations

r photoCompex’s line of wire-bondable and edge-terminated thin film resistors offers our customers significant flexibility to meet the most challenging designs. Built to the customer’s exact specifications, available alternatives include single, dual, center-tap, array, and custom configurations. Standard and microwave frequency options up to 40 GHz or higher are available.

  • CUSTOM MANUFACTURED TO PROVIDE THE OPTIMUM PART FOR EACH APPLICATION
  • ALUMINA, ALUMINUM NITRIDE, BERYLLIUM OXIDE, SILICON, AND QUARTZ
  • TOLERANCE DOWN TO 0.01%

R Part Number Assembly

Example shown: Compex Series R, center tap TaN resistor, C-35 (alumina), .020” x .020” x .010”, PdAu bonding pad, 1000Ω ±5%, 150 PPM TCR, regular trim 1 W R Part Number Assembly

Standard Resistance Tolerance Codes

Tolerance Code
±20% M
±15% L
±10% K
Tolerance Code
±5%J
±3%H
±2%Z
Tolerance Code
±1%F
±.5%D
±.1%B
Tolerance Code
±.05%Q
±.01%S

R Selection Charts

Note: Selection Charts are for guidance only. All Compex parts are built to specific customer requirements.

R Selection Charts

Bonding Pad Metallizations
Metalization   Code
Pd/Au Top Side Bare Bottom Side A
Pd/Au Top Side Ta/Pd/Au Bottom Side D
Pd/Au Top Side Ti/Pt/Au Bottom Side L
Ni/Au Application Specific P
TiW/Au Top Side Bare Bottom Side E
TiW/Au Top Side Ta/Pd/Au Bottom Side F
Window Silicon Only W
Custom Application Specific X
Temperature Coefficient of Resistance
Parts Per Million (PPM) Code
±150 Q
±100 V
±50 W
±25 X
±10 Y
±5 Z
Testing Performed Specification/Standard
Visual Inspection MIL-PRF-55342 Para 4.8.1
MIL-STD-883 Method 2032
Mechanical Inspection MIL-PRF-55342 Para 4.8.1
DC Resistance MIL-PRF-55342 Para 4.8.2
MIL-STD-202 Method 303
Resistance Temperature Characteristic (TCR) MIL-PRF-55342 Para 3.16
MIL-STD-202 Method 304
Short Time Overload MIL-PRF-55342 Para 3.12
High Temperature Exposure MIL-PRF-55342 Para 3.13
Thermal Shock MIL-PRF-55342 Para 3.9
MIL-STD-202 Method 107
Resistance to Bonding Exposure MIL-PRF-55342 Para 3.14.2
Wire Bonding Integrity MIL-PRF-55342 Para 4.8.13
Life Test MIL-PRF-55342 Para 3.17
MIL-STD-202 Method 108 (rated voltage @ 70°C for 2000 hours)

R Selection Charts

Note: Selection Charts are for guidance only. All Compex parts are built to specific customer requirements.

R Selection Charts

Bonding Pad Metallizations
Metalization Applications Code
1 Side Wrap Bare Bottom Side A
1 Side Wrap Ta/Pd/Au Bottom Side D
2 Sided Wrap Ti/Pt/Au Bottom Side L
2 Sided Wrap Application Specific P
Custom Bare Bottom Side E

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R Series: Thin Film Resistors
Single or Dual Edge Wrap

Compex’s line of wire-bondable and edge-terminated thin film resistors offers our customers significant flexibility to meet the most challenging designs. Built to the customer’s exact specifications, available alternatives include single, dual, center-tap, array, and custom configurations. Standard and microwave frequency options up to 40 GHz or higher are available, voltage rating up to 100V.

  • CUSTOM MANUFACTURED TO PROVIDE THE OPTIMUM PART FOR EACH APPLICATION
  • ALUMINA, ALUMINUM NITRIDE AND BERYLLIUM OXIDE
  • TOLERANCE DOWN TO 0.01%

R Part Number Assembly

Example shown: Compex Series R, Microwave Frequency, Dual edge-wrap SMT style TaN Resistor, C-28 (AIN), .040" x .020" x .010", 200Ω ± 2%, 150 PPM TCR, 1W

R Part Number Assembly

Standard Resistance Tolerance Codes

Tolerance Code
±20% M
±15% L
±10% K
Tolerance Code
±5%J
±3%H
±2%G
Tolerance Code
±1%F
±.5%D
±.1%B
Tolerance Code
±.05%Q
±.01%S

R Selection Charts

Note: Selection Charts are for guidance only. All Compex parts are built to specific customer requirements.

R Selection Charts

Bonding Pad Metallizations
Metalization   Code
Pd/Au Top Side Bare Bottom Side A
Pd/Au Top Side Ta/Pd/Au Bottom Side D
Pd/Au Top Side Ti/Pt/Au Bottom Side L
Ni/Au Application Specific P
TiW/Au Top Side Bare Bottom Side E
TiW/Au Top Side Ta/Pd/Au Bottom Side F
Window Silicon Only W
Custom Application Specific X
Temperature Coefficient of Resistance
Parts Per Million (PPM) Code
±150 Q
±100 V
±50 W
±25 X
±10 Y
±5 Z
Testing Performed Specification/Standard
Visual Inspection MIL-PRF-55342 Para 4.8.1
MIL-STD-883 Method 2032
Mechanical Inspection MIL-PRF-55342 Para 4.8.1
DC Resistance MIL-PRF-55342 Para 4.8.2
MIL-STD-202 Method 303
Resistance Temperature Characteristic (TCR) MIL-PRF-55342 Para 3.16
MIL-STD-202 Method 304
Short Time Overload MIL-PRF-55342 Para 3.12
High Temperature Exposure MIL-PRF-55342 Para 3.13
Thermal Shock MIL-PRF-55342 Para 3.9
MIL-STD-202 Method 107
Resistance to Bonding Exposure MIL-PRF-55342 Para 3.14.2
Wire Bonding Integrity MIL-PRF-55342 Para 4.8.13
Life Test MIL-PRF-55342 Para 3.17
MIL-STD-202 Method 108 (rated voltage @ 70°C for 2000 hours)

R Chip Dimensions

Top Side Terminators

Single Edge Wrap [ More Info ]

Dual Edge Wrap [ More Info ]

Performance Specifications
Typical Compex commercial testing includes 100% visual, mechanical, resistance, short time overload, and Resistance Temperature Characteristic. Our parts also meet or exceed additional MIL-PRF-55342 and MIL-STD-202 requirements outlined in the table on page 15. Please consult the factory for your exact testing requirements.

Higher power ratings, additional sizes, and custom resistors available. Please contact factory to request free samples.