Bolt Style EMI Filters SN Series – 12-32 Thread - Hermetically Sealed – Circuits Available – C, L, π APPLICATIONS The SN series offers effective filtering from 1 MHz to 10 GHz. Glass sealed on both ends for hermeticity, this series is impervious to high moisture, solvents, or other severe environmental conditions commonly encountered in military applications. It is designed for bulkhead mounting with nut and lockwasher supplied. The feedthru designs yield constant filtering as current level is increased from no-load to full rated load. They are most effective when placed in high impedance circuits. The π-section designs exhibit sharper roll-off in filter characteristic and perform effectively when used in medium to low impedance circuits. Alternate lead configurations or special capacitance values and voltage ratings may be ordered. CHARACTERISTICS SPECIFICATIONS • The hermetic bolt-style design was developed to meet or exceed the applicable portions of MIL-F-28861/10. The filter is assembled with a glass hermetic seal on both ends. The rugged monolithic capacitor element is a low inductance design that yields superior bypass performance. The π-section design contains two capacitor elements together with a ferrite bead inductor. • Certain feedthru designs are rated for 115 VAC/400 Hz applications. The 200 VDC π-section design is rated for DC applications only. 1. Plating: Silver standard – Electro-tin or gold available STANDARD CONFIGURATION 2. Material: Case: Cold rolled steel standard, brass available .220 .250 MAX. Leads: Copper nailhead standard. Only available ±.010 .216-32 UNEF-2A .040 in .032" diameter. Beryllium copper lead (12-32) MAX. available. Straight lead available. .032 ±.002 3. Operating Temperature Range: -55°C to +125°C 4. Electrical Characteristics: A. Capacitance: Guaranteed Minimum Value (GMV) as listed .250 ±.005 B. Insulation Resistance: .311 At 25°C: 1,000 megohm-microfarad ±.005 min., or 100,000 megohms .921 .343 min., whichever is less ±.020 ±.020 At 125°C: 100 megohm-microfarad min., or 10,000 megohms CIRCUIT DIAGRAMS min., whichever is less C. Dielectric Withstanding Voltage (DWV): R-level designs: L2 2.0 times rated voltage C Pi Class B, Class S designs: 2.5 times rated voltage SN2 SN1 SN3 D. DC Resistance (DCR): .01 ohm, maximum Notes: millimeters (inches) E. Voltage Drop: 0.1 volt, maximum 0.05 (.002) 1.85 (.073) F. Dissipation Factor (DF): 3% maximum 1. Metric equivalent dimensions given for information only. 0.13 (.005) 3.99 (.157) G. Rated Current: 10 Amps, maximum 0.18 (.007) 5.49 (.216) 5. Seal: In accordance with MIL-F-28861. Leakage rate for Class S designs shall not 0.25 (.010) 6.12 (.241) exceed 1 x 10-7 atm cc/sec. 0.51 (.020) 6.35 (.250) 6. Marking: Standard (AVX symbol, AVX part 0.58 (.023) 7.90 (.311) number) 0.79 (.031) 8.71 (.343) 7. Installation: Filter is supplied with mounting nut 0.81 (.032) 9.45 (.372) and lockwasher. The recommended mounting 1.02 (.040) 9.73 (.383) torque is 64 oz-in. ± 4 oz-in. Refer to the 1.14 (.045) 23.39 (.921) “Installation and Handling” section for additional 1.60 (.063) — — information. (See Note 1) 27 Bolt Style EMI Filters SN Series – 12-32 Thread - Hermetically Sealed – Circuits Available – C, L, π SPECIFICATIONS AVX P/N SN1C1-204 SN2C1-204 SN3C1-124 SN1A1-503 SN1A1-104 SN2A1-503 SN3A1-753 SN1L1-102 SN1L1-502 SN1L1-103 SN1L1-253 SN2L1-102 SN2L1-502 SN2L1-103 SN3B1-152 SN3B1-123 CKT C L2 π C C L2 π C C C C L2 L2 L2 π π CAP1 .20 .20 .12 .05 .10 .05 .075 1000 5000 .01 .025 1000 5000 .01 1500 .012 Voltage 50 50 50 100 100 100 100 200* 200* 200* 200* 200* 200* 200* 200 200 * Rated 200 VDC or 125 VAC/400 Hz 1 2 Decimal point values indicate capacitance in microfarads. Non-decimal point values indicate capacitance in picofarads. Insertion loss limits are based on theoretical values. Actual measurements may vary due to internal capacitor resonances and other design constraints. 28 DCR .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 .01 1 MHz 26 26 20 15 20 15 18 – – 4 8 – – 4 – – Insertion Loss2 Per MIL-STD-220, +25°C 10 100 200 1 MHz MHz MHz GHz 39 52 60 70 38 65 70 70 38 70 70 70 35 42 50 70 38 48 53 70 36 54 60 70 38 70 70 70 4 20 25 40 15 34 41 50 21 35 40 55 28 36 44 64 4 20 27 45 15 35 41 55 21 35 38 65 8 20 45 70 12 60 70 70 10 GHz 70 70 70 70 70 70 70 50 55 60 70 70 70 70 70 70