Key Features
- Inductance as low as 25nH (<12nH available)
- Low ESR
- Current carrying capability to 110 amps
- Withstands hostile environments
- Integrated mounting flanges
- RoHS compliant
Home > Film Capacitors > UL3 Series
Low Inductance with High Current Carrying Capability
The UL3 Series encompasses low inductance with high current carrying capability – and a low profile to make the most efficient use of system space and increased cooling efficiency. Plus an in-house developed, “specific to the task” thermoplastic formulation for the enclosure, improves thermal conductivity.
There is also an integrated flange with pre-drilled holes to simplify mounting.
The UNLYTIC® UL3 SERIES, with its introduction, the designer has a film capacitor for high power filter systems that will maximize space utilization, performance and reliability. With the added potential for measurable production cost savings.
Additional Information
Capacitance Range
- 6.5µF to 300.0µF
Capacitance Tolerance
- Standard tolerance is ±10%.
- Tolerances of ±20% and ±5% are also available.
Operating Temperature Range
- -55°C to +105°C
Enclosure/ Construction
- Unlytic polypropylene potted in a thermoplastic housing.
- Terminals are tin plated brass.
Voltage Rating
- 500VDC to 2200VDC
Quality Control
- Capacitors are tested 100% for:
- Capacitance
- Tolerance
- Dissipation Factor
- Dielectric withstanding voltage
- Insulation Resistance
- Equivalent Series Resistance (ESR)
*Process and inspection data are maintained on file and available on special request.
Environmental
| Parameter | Method | Condition |
|---|---|---|
| Vibration | 204 | D |
| Shock | 213 | I |
| Humidity | 106 | – |
| Thermal Shock | 107 | A |
| Life | 108 | F |
| Reference MIL-STD 202 | ||
| UL31, 32, 34 AND UL35 | |||||||||||||||
| ELECTRICAL SPECIFICATIONS | |||||||||||||||
| ESL FOR | ESL FOR | CURRENT RATING (AMPS RMS) | |||||||||||||
| UL31 AND UL32 | UL34 AND UL35 | IN CIRCUIT | 10 kHz TO 100 kHz CONTINUOUS | ||||||||||||
| PART NUMBER | VOLTAGE | VALUE | CASE "H" | "L" | Fres | "L" | Fres | I pk | dv/dt | E.S.R. | AMBIENT TEMPERATURE | ||||
| VDC | uF | mm | nH | kHz | nH | kHz | mOHMS | 25*C | 45*C | 65*C | 85*C | 105*C | |||
| UL3_Q157K | 500 | 150 | 40 | 25 | 82.2 | 12 | 118.6 | 5769 | 38 | 0.47 | 110.3 | 95.7 | 78.5 | 56.3 | 13.4 |
| UL3_Q207K | 500 | 200 | 51 | 32 | 62.9 | 15 | 91.9 | 5809 | 29 | 0.57 | 105.4 | 91.5 | 75.1 | 53.9 | 12.8 |
| UL3_Q277K | 500 | 275 | 64 | 50 | 42.9 | 25 | 60.7 | 5672 | 21 | 0.77 | 97.2 | 84.4 | 69.3 | 49.7 | 11.8 |
| UL3_Q307K | 500 | 300 | 79 | 55 | 39.2 | 27 | 55.9 | 5022 | 17 | 1.70 | 77.1 | 66.9 | 54.9 | 39.4 | 9.4 |
| UL3_K107K | 600 | 100 | 40 | 25 | 100.7 | 12 | 145.3 | 4396 | 44 | 0.62 | 91.2 | 79.2 | 65.0 | 46.6 | 11.1 |
| UL3_K157K | 600 | 150 | 51 | 32 | 72.6 | 15 | 106.1 | 4979 | 33 | 0.67 | 96.8 | 84.0 | 68.9 | 49.9 | 11.8 |
| UL3_K207K | 600 | 200 | 64 | 50 | 50.3 | 25 | 71.2 | 4714 | 24 | 0.93 | 87.0 | 75.7 | 62.0 | 44.5 | 10.6 |
| UL3_K257K | 600 | 250 | 79 | 55 | 42.9 | 27 | 61.3 | 4782 | 19 | 1.79 | 77.4 | 67.2 | 55.1 | 39.6 | 9.4 |
| UL3_N706K | 800 | 70 | 40 | 25 | 120.3 | 12 | 173.7 | 3846 | 55 | 0.71 | 88.0 | 76.4 | 62.7 | 45.0 | 10.7 |
| UL3_N107K | 800 | 100 | 51 | 32 | 89.0 | 15 | 129.9 | 4149 | 41 | 0.80 | 89.5 | 77.7 | 63.8 | 45.7 | 10.9 |
| UL3_N137K | 800 | 130 | 64 | 50 | 62.4 | 25 | 88.3 | 3830 | 29 | 1.15 | 78.8 | 68.4 | 56.1 | 40.3 | 9.6 |
| UL3_N167K | 800 | 160 | 79 | 55 | 53.7 | 27 | 76.6 | 3826 | 24 | 2.20 | 69.2 | 60.1 | 49.3 | 35.4 | 8.4 |
| UL3_BL356K | 1000 | 35 | 40 | 25 | 170.1 | 12 | 245.6 | 2692 | 77 | 1.02 | 72.6 | 63.0 | 51.7 | 37.1 | 8.8 |
| UL3_BL506K | 1000 | 50 | 51 | 32 | 125.8 | 15 | 183.8 | 2905 | 58 | 1.16 | 74.1 | 64.3 | 52.8 | 37.8 | 9.0 |
| UL3_BL706K | 1000 | 70 | 64 | 50 | 85.1 | 25 | 120.3 | 2887 | 41 | 1.53 | 69.6 | 60.4 | 49.6 | 35.6 | 8.5 |
| UL3_BL806K | 1000 | 80 | 79 | 55 | 75.9 | 27 | 108.3 | 2678 | 33 | 3.20 | 57.5 | 49.9 | 40.9 | 29.4 | 7.0 |
| UL3_L256K | 1200 | 25 | 40 | 25 | 201.3 | 12 | 290.6 | 2198 | 88 | 1.26 | 63.7 | 55.3 | 45.4 | 32.5 | 7.8 |
| UL3_L356K | 1200 | 35 | 51 | 32 | 150.4 | 15 | 219.7 | 2324 | 66 | 1.45 | 64.0 | 55.5 | 45.6 | 32.7 | 7.8 |
| UL3_L506K | 1200 | 50 | 64 | 50 | 100.7 | 25 | 142.4 | 2357 | 47 | 1.87 | 61.3 | 53.2 | 43.7 | 31.3 | 7.5 |
| UL3_L606K | 1200 | 60 | 79 | 55 | 87.6 | 27 | 125.0 | 2296 | 38 | 3.74 | 52.8 | 45.9 | 37.6 | 27.0 | 6.4 |
| UL3_M186K | 1500 | 18 | 40 | 25 | 237.3 | 12 | 342.4 | 1978 | 110 | 1.42 | 62.8 | 54.5 | 44.7 | 32.1 | 7.6 |
| UL3_M256K | 1500 | 25 | 51 | 32 | 177.9 | 15 | 259.9 | 2075 | 83 | 1.64 | 62.7 | 54.4 | 44.7 | 32.0 | 7.6 |
| UL3_M356K | 1500 | 35 | 64 | 50 | 120.3 | 25 | 170.1 | 2062 | 59 | 2.15 | 59.1 | 51.3 | 42.1 | 30.2 | 7.2 |
| UL3_M406K | 1500 | 40 | 79 | 55 | 107.3 | 27 | 153.1 | 1913 | 48 | 4.49 | 48.9 | 42.4 | 34.8 | 25.0 | 5.9 |
| UL3_BX106K | 1800 | 10 | 40 | 25 | 318.3 | 12 | 459.4 | 1596 | 160 | 1.67 | 57.3 | 49.7 | 40.8 | 29.3 | 7.0 |
| UL3_BX156K | 1800 | 15 | 51 | 32 | 229.7 | 15 | 335.5 | 1719 | 115 | 1.91 | 58.0 | 50.3 | 41.3 | 29.6 | 7.1 |
| UL3_BX206K | 1800 | 20 | 64 | 50 | 159.2 | 25 | 225.1 | 1559 | 78 | 2.79 | 50.1 | 43.5 | 35.7 | 25.6 | 6.1 |
| UL3_BX276K | 1800 | 27 | 79 | 55 | 130.6 | 27 | 186.4 | 1549 | 57 | 5.56 | 43.5 | 37.8 | 31.0 | 22.2 | 5.3 |
| UL3_S655K | 2200 | 6.5 | 40 | 25 | 394.8 | 12 | 569.9 | 1297 | 199 | 2.06 | 51.9 | 45.1 | 37.0 | 26.5 | 6.3 |
| UL3_S905K | 2200 | 9.0 | 51 | 32 | 296.6 | 15 | 433.2 | 1289 | 143 | 2.56 | 49.0 | 42.5 | 34.9 | 25.0 | 6.0 |
| UL3_S126K | 2200 | 12 | 64 | 50 | 205.5 | 25 | 290.6 | 1170 | 97 | 3.72 | 42.5 | 36.9 | 30.2 | 21.7 | 5.2 |
| UL3_S176K | 2200 | 17 | 79 | 55 | 164.6 | 27 | 234.9 | 1220 | 72 | 7.08 | 38.4 | 33.3 | 27.3 | 19.6 | 4.7 |
Dielectric Strength
Capacitors withstand a DC potential of 1.3 x rated voltage for one (1) minute without damage or breakdown. Test voltage is applied and discharged through a minimum resistance of 100 OHM per volt minimum.
Dissipation Factor
Polypropylene has an intrinsic dissipation factor of less than 2.1 x 10-4 over the operating temperature range of -55°C to +105°C and frequencies to 1MHz.
- UL31/UL35 – Male Terminal
- UL32/UL34 – Female Terminal
- UL31/UL32 – Standard ESL
- UL34/UL35 – Special Low ESL
