Polyester Film Capacitors
Metallized Polyester
- MM37R | Radial Box [details »]
- MM37D | Radial Epoxy Dipped [details »]
- MM37O | Axial Oval [details »]
- MM37| Axial Round [details »]
- MM37S | Axial Round Capsule [Consult Factory for Dimensions »]
- Extended metallized film, non-inductive
- Small size
- Self healing
- Wide temperature range
- Extremely low losses
- Very high stability
- RoHS Compliant
- Multi-purpose
- Filtering, blocking
- Coupling and decoupling
- Bypass and pulse operation
- Timing
- Dielectric: Metallized Polyester
- Electrodes: Vacuum-deposited aluminum
- Leads: Tinned wire
- Temperature Range:
-55°C to 105°C and
125°C at 50% rated voltage - Capacitance Range: 1000pf to 22μf
- Rated Voltages:
63VDC/40VAC, 100VDC/63VAC, 250VDC/160VAC, 400VDC/200VAC, 630VDC/230VAC, 1000VDC/250VAC
- Time Constant at 25°C:
≥10,000mΩ x μf sec. for C > .33μf @ > 100VDC
≥5,000mΩ x μf sec. for C > .33μf @ ≤ 100VDC - Temperature Coefficient:
+550 ± 150/ppm
- Dielectric Strength:
2 x VR, for 5 sec. (Special test upon request) - Insulation Resistance at 25°C (Minimum IR):
≥30,000mΩ for C > .33μf @ 100VDC
≥15,000mΩ for C ≤ .33μf @ 100VDC
Capacitance ranges listed are for standard products. Custom applications are available for all STK Electronics series.
Dissipation Factor at 25°C (Typical):
| KHZ | C ≤ .1μf | .1μf < C ≤ 1μf | C > 1μf |
| 1 | 8 x 10-3 | 8 x 10-3 | 10 x 10-3 |
| 10 | 15 x 10-3 | 15 x 10-3 | |
| 100 | 30 x 10-3 |
Max Pulse Rise Time V/ μs: (dv/dt)
| LS (in/mm) | 63VDC | 100VDC | 250VDC | 400VDC | 630VDC | 1000VDC |
| .30 / 7.5 | 12 | 20 | 30 | 40 | 70 | |
| .40 / 10 | 9 | 12 | 15 | 21 | 40 | 70 |
| .60 / 15 | 6 | 8 | 9 | 14 | 33 | 50 |
| .90 / 22.5 | 4 | 5 | 7 | 11 | 19 | 34 |
| 1.1 / 27.5 | 3 | 4 | 6 | 9 | 14 | 20 |
| 1.5 / 38 | 2 | 4 | 7 | 10 | 15 |