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Microwave Top Side Resistors
Standard Microwave Resistors
Product Features
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- Special microwave laser-trimming to ensure a tight tolerance at high frequencies
- Compatible with flip-chip configurations
- Operating frequencies up to 60 GHz; higher frequencies available
- Can be used in Non-Magnetic Applications
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Product Specifications
Resistance Range
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- 2Ω to 5kΩ
Resistance Tolerance
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- ±0.5% to ±20%, value dependent
VSWR
| DC to 10 GHz | 10 to 20 GHz | 20 to 60 GHz |
| 1.2:1 | 1.3:1 | 1.5:1 |
Thin Film Microwave Resistors
Part Numbering
Example PPI Part Number: PMT135-20x20x10A10000JQEW
Resistive Materials
Standard Thickness
| Code | Material | Passivation | Sheet Resistivity (Ω/Sq) |
Abs. Tolerance | Ratio Tolerance |
| T | Tantalum Nitride (TaN) |
Self Passivating Ta₂O₅ | 5 to 270 | From ±0.01% | From ±0.01% |
| N | NiChrome (NiCr) |
SiO₂ | 5 to 250 | From ±0.01% | From ±0.01% |
| L xW | Thickness |
| 12 x 09 | 5 mils |
| All other sizes | 10 mils |
For additional thickness requirements, please contact PPI
The standard dimensional tolerance for length and width is ± 2 mils. The standard dimensional tolerance for thickness is ± 1 mil.
Substrate Materials
| Code | Material | Thickness | Surface Finish | Dielectric Constant (@ 1MHz) |
Coefficient of Thermal Expansion (x10⁶/°C) |
Thermal Conductivity (W/m*K) |
| 35 | Alumina (Al₂O₃) |
0.005″ – 0.010″ | 2μ” – 3μ” | 9.9 | 7 (25°C to <300°C) |
26.9 |
| 28 | Aluminum Nitride (AlN) |
0.005″ – 0.010″ | 6μ” – 8μ” | 8.0 – 9.1 | 4.6 – 5.7 (25°C to <1000°C) |
170 |
| 25 | Beryllium Oxide (BeO) |
0.005″ – 0.010″ | <5μ” | 6.76 | 9 (25°C to <1000°C) |
285 |
| 20 | Quartz (Fused Silica) |
0.005″ – 0.010″ | 60/40 Optical Polish |
3.826 | 0.55 (25°C to <1000°C) |
1.38 |
Termination
Resistance Value
| Code | Top Side | Bottom Side | ||
| Metallization | Attachment Options | Metallization | Attachment Options | |
| A | Pd/Au | Wirebond, Non-Cond. Epoxy | – | – |
| R | Flip Chip (Ti/Pt/Au) |
Cond. Epoxy, Non-Cond. Epoxy, Eutectic Attach Solder | – | – |
| D | Pd/Au | Wirebond, Non-Cond. Epoxy | Ta/Pd/Au | Cond. Epoxy, Non-Cond. Epoxy, Eutectic Attach, Solder |
Digits 1-4 are significant figures. Digit 5 is the number of zeros to follow. When required, “R” is used as a decimal point and the exponent is omitted.
Examples:
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- Code 10001 = 10000Ω
- Code 10000 = 1000Ω
- Code 100R5 = 100.5Ω
Power Handling & Standard Resistance Ranges by Material and Case Size
Standard Power Resistors and High Power Resistors can be found under the below selectable tabs.
| Case Size | Alumina (35) |
AlN (28) |
BeO (25) |
Quartz (20) |
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| mils (inches) |
Min (Ω) |
Max (Ω) |
Power Handling | Max (Ω) |
Power Handling | Max (Ω) |
Power Handling | Max (Ω) |
Power Handling |
| 12×9 (0.012″x0.009″) |
1-3 | 25K | 50 mW | 25K | 200 mW | 25K | 400 mW | 150K | 10 mW |
| 14×12 (0.014″x0.012″) |
1-3 | 40K | 100 mW | 40K | 400 mW | 40K | 750 mW | 200K | 20 mW |
| 20×10 (0.020″x0.010″) |
1-3 | 60K | 100 mW | 60K | 400 mW | 60K | 750 mW | 250K | 20 mW |
| 15×15 (0.015″x0.015″) |
1-2 | 70K | 100 mW | 70K | 400 mW | 70K | 750 mW | 500K | 20 mW |
| 20×20 (0.020″x0.020″) |
1-2 | 125K | 250 mW | 125K | 1.0 W | 125K | 2.0 W | 750K | 50 mW |
| 30×20 (0.030″x0.020″) |
1-2 | 200K | 250 mW | 200K | 1.0 W | 200K | 2.0 W | 1M | 50 mW |
| 40×20 (0.040″x0.020″) |
1-2 | 250K | 250 mW | 250K | 1.0 W | 250K | 2.0 W | 1.5M | 50 mW |
| 30×30 (0.030″x0.030″) |
1-2 | 275K | 250 mW | 275K | 1.0 W | 275K | 2.0 W | 2M | 50 mW |
| 35×35 (0.035″x0.035″) |
1-2 | 300K | 250 mW | 300K | 1.0 W | 300K | 2.0 W | 3M | 50 mW |
| 40×40 (0.040″x0.040″) |
1-2 | 500K | 350 mW | 500K | 1.4 W | 500K | 2.8 W | 5M | 70 mW |
| 50×25 (0.050″x0.025″) |
1-2 | 300K | 350 mW | 300K | 1.4 W | 300K | 2.8 W | 3M | 70 mW |
| 60×30 (0.060″x0.030″) |
1-2 | 500K | 500 mW | 500K | 2.0 W | 500K | 4.0 W | 6M | 100 mW |
| 50×50 (0.050″x0.050″) |
1-2 | 700K | 500 mW | 700K | 2.0 W | 700K | 4.0 W | 7M | 100 mW |
| 60×60 (0.060″x0.060″) |
1-2 | 2M | 500 mW | 2M | 2.0 W | 2M | 4.0 W | 15M | 100 mW |
| 80×50 (0.080″x0.050″) |
1-2 | 2M | 500 mW | 2M | 2.0 W | 2M | 4.0 W | 20M | 100 mW |
| 100×50 (0.100″x0.050″) |
1-2 | 2.5M | 500 mW | 2.5M | 2.0 W | 2.5M | 4.0 W | 25M | 100 mW |
| 120×60 (0.120″x0.060″) |
1-2 | 3M | 750 mW | 3M | 3.0 W | 3M | 6.0 W | 30M | 125 mW |
| 100×100 (0.100″x0.100″) |
1-2 | 3.5M | 750 mW | 3.5M | 3.0 W | 3.5M | 6.0 W | 35M | 125 mW |
| Case Size | Resistance Range | Power Handling | |||
| mils (inches) |
Min (Ω) |
Max (Ω) |
Alumina (35) |
AlN (28) |
BeO (25) |
| 20×10 (0.020″x0.010″) |
2 | 1000 | 250 mW | 1.0 W | 2.0 W |
| 15×15 (0.015″x0.015″) |
2 | 1000 | 250 mW | 1.0 W | 2.0 W |
| 20×20 (0.020″x0.020″) |
2 | 1000 | 500 mW | 2.0 W | 4.0 W |
| 30×20 (0.030″x0.020″) |
2 | 1000 | 500 mW | 2.0 W | 4.0 W |
| 40×20 (0.040″x0.020″) |
2 | 1000 | 750 mW | 3.0 W | 6.0 W |
| 30×30 (0.030″x0.030″) |
2 | 1000 | 750 mW | 2.0 W | 6.0 W |
| 35×35 (0.035″x0.035″) |
2 | 1000 | 1.0 W | 4.0 W | 6.0 W |
| 40×40 (0.040″x0.040″) |
2 | 1000 | 1.0 W | 4.0 W | 6.0 W |
| 50×25 (0.050″x0.025″) |
2 | 1000 | 1.0 W | 4.0 W | 6.0 W |
| 60×30 (0.060″x0.030″) |
2 | 1000 | 1.4 W | 5.0 W | 10.0 W |
| 50×50 (0.050″x0.050″) |
2 | 1000 | 1.4 W | 5.0 W | 10.0 W |
| 60×60 (0.060″x0.060″) |
2 | 1000 | 1.4 W | 5.0 W | 10.0 W |
| 80×50 (0.080″x0.050″) |
2 | 1000 | 2.8 W | 10.0 W | 15.0 W |
| 100×50 (0.100″x0.050″) |
2 | 1000 | 2.8 W | 10.0 W | 15.0 W |
| 120×60 (0.120″x0.060″) |
2 | 1000 | 2.8 W | 10.0 W | 15.0 W |
| 100×100 (0.100″x0.100″) |
2 | 1000 | 2.8 W | 10.0 W | 15.0 W |
Typical PPI commercial testing includes 100% visual inspection, 100% electrical testing with short time overload, and TCR sampling.
Our parts meet of exceed additional MIL-PRF-55342 and MIL-STD-202 requirements.
Resistance Tolerance
Temperature Coefficient
Power Handling
| Code | Tolerance |
| D | ±0.5% |
| F | ±1% |
| G | ±2% |
| H | ±3% |
| J | ±5% |
| K | ±10% |
| L | ±15% |
| M | ±20% |
| Code | TC | Material | |
| Tantallum Nitride (TaN) |
NiChrome (NiCr) |
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| Q | ±150PPM/°C | Standard | – |
| V | ±100PPM/°C | Yes | – |
| W | ±50PPM/°C | Yes | Yes |
| X | ±25PPM/°C | – | Standard |
| Y | ±10PPM/°C | – | Yes |
| Z | ±5PPM/°C | – | Yes |
| Code | Watts |
| A | 10 mW |
| B | 20 mW |
| C | 50 mW |
| D | 75 mW |
| E | 100 mW |
| I | 125 mW |
| F | 150 mW |
| O | 200 mW |
| G | 250 mW |
| M | 350 mW |
| R | 400 mW |
| H | 500 mW |
| J | 750 mW |
| K | 1.0 W |
| U | 1.4 W |
| L | 2.0 W |
| Y | 2.8 W |
| N | 3.0 W |
| P | 4.0 W |
| Q | 5.0 W |
| Z | 6.0 W |
| S | 10 W |
Packaging
General Properties
Testing
| Code | Style |
| W | Waffle Pack (Standard) |
For additional packaging options, please contact PPI.
| Operating Temperature | -55°C to +150°C |
| Storage Temperature | -65°C to +150°C |
| Operating Frequency | DC to 60 GHz |
| Voltage Rating | 100V maximum |
| Power Derating (See Chart below) |
Full power up to 70°C Derated linearly to zero power at 150°C |
| Testing Performed | Specification/Standard |
| Visual Inspection | MIL-PRF-55342 MIL-STD-883 |
| Mechanical Inspection | MIL-PRF-55342 |
| DC Resistance | MIL-PRF-55342 MIL-STD-202 |
| Resistance Temperature Characteristics (TCR) | MIL-PRF-55342 |
| Short Time Overload | MIL-PRF-55342 |
| High Temperature Exposure | MIL-PRF-55342 |
| Thermal Shock | MIL-PRF-55342 MIL-STD-202 |
| Resistance to Bonding Exposure | MIL-PRF-55342 |
| Wire Bonding Integrity | MIL-PRF-55342 |
| Life Test | MIL-PRF-55342 MIL-STD-202 |
Performance Specifications
Higher power ratings, additional sizes, and custom resistors available. Please contact sales@passiveplus.com.
Passive Plus offers a comprehensive range of Thin Film Components, designed to meet the diverse needs of the engineering community. PPI Thin Film Components are Made-to-Order and customized to specific applications. Offering precision, reliability, and customization options that cater to your unique requirements.
PPI Thin Film Components deliver tight tolerances, precision, and reliability for any engineering project. Explore each Thin Film type to determine the perfect fit for your application or contact PPI (sales@passiveplus.com) and our team can work with you to determine the best solution.
Once these specifications are confirmed, PPI will then supply the customer with a Spec Sheet with pricing and delivery options.
Please contact PPI directly at 631-425-0938 or by email at sales@passiveplus.com to start this process.
