EMI Input Filters 28 Volt Input NOT RECOMMENDED FOR NEW DESIGNS FM-461, FMA-461 and FMB-461 1.75 to 5 amp Features Attenuation 40 dB from 110 kHz to 50 MHz • Operating temperature -55° to +85°C • Nominal 28 V input, 0 V to 40 V operation • 1.75 to 5 A throughput current • Transient suppression • Compliant to MIL-STD-461C CE-03 models Input Voltage and Current Input (V) 0 - 40 0 - 40 0 - 40 Current (A) 1.75 3.8 5.0 Size (max.): Non-flanged case H3 - FM-461 2.110 x 1.120 x 0.417 inches (53.59 x 28.45 x 10.59 mm) H5 - FMA/FMB 2.110 x 1.120 x 0.495 inches (53.59 x 28.45 x 12.57* mm) Flanged case K4 - FM-461 2.910 x 1.115 x 0.417 inches (73.91 x 28.32 x 10.59* mm) K6 - FMA/FMB 2.910 x 1.115 x 0.495 inches (73.91 x 28.32 x 12.57 mm) Weight: Maximum – FM-461 38 grams, FMA-461 42 grams, FMB-461 43 grams Screening: Standard or ES. See screening table for more information. Description Filter Operation These filters are built using thick-film hybrid technology and are sealed in metal packages for military, aerospace, and other highreliability applications. See Section B8, cases H3, H5, K4, and K6 for dimensions. See Section C2 for screening options. The filters are rated to operate, with no degradation of performance, over the temperature range of –55°C to +85°C (as measured at the baseplate). Above 85°C, input voltage and current must be derated as specified in “Derating” on the following page. The maximum power dissipation of the filters at maximum input current represents a power loss of less than 3% at typical input voltage. MIL-STD Noise Management Layout Requirements The FM-461, FMA-461, and FMB-461 EMI filter modules have been specifically designed to reduce the input line reflected ripple current of Interpoint’s MTO, MTW, MHE, MLP, and MFW Series of DC/DC converters. They are intended for use in applications of high frequency (100 kHz) switch-mode DC/DC converters which must meet MIL-STD-461C levels of conducted power line noise. When used in conjunction with Interpoint’s DC/DC converters (see connection diagram, Figure 2), the input ripple current will be reduced by 40 dB within the frequency band of 100 kHz to 50 MHz. This gives the filter/converter combination a performance which exceeds the CE03 test limit of MIL-STD-461C. The CE03 performance of a model MHE2805S converter with and without the FM-461 filter is shown in Figures 6 and 7. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.interpoint.com A fast-reacting (1 picosecond) transient suppressor clamps the input voltage at approximately 47 V, protecting the DC/DC converter from line induced transients. The case of the filter must be connected to the case of the converter through a low impedance connection to minimize EMI. Page 1 of 9 FM/A/B Rev C 20100212 EMI Input Filters absolute maximum ratings FM-461, FMA-461 and FMB-461 1.75 to 5 amp derating Input Voltage • 0 to 40 VDC continuous Input Voltage Derate linearly from 100% at 85°C case to the 33 VDC at 125°C case Lead Soldering Temperature (10 sec per lead) • 300°C Input Ripple Current Derate linearly from 100% at 85°C case to the following at 125°C case 270 mA rms FM-461 400 mA rms FMA-461 480 mA rms FMB-461 Storage Temperature Range (Case) • –55°C to +135°C Isolation • 100 megohm minimum at 500 V • Any pin to case (except case pin) DC Input and Output Current Derate linearly from 100% at 85°C case to the following at 125°C case 750 mA FM-461 1.7 A FMA-461 1.7 A FMB-461 recommended operating conditions Input Voltage Range • 0 to 40 VDC continuous Case Operating Temperature (Tc) • –55°C to +85°C full power • –55°C to +125°C absolute Electrical Characteristics: 25°C Tc, nominal Vin, unless otherwise specified. fm-461 PARAMETER CONDITIONS input voltage continuous input clamping voltage noise rejection 0 0 28 28 40 0 28 40 38.9 43.2 47.5 38.9 43.2 47.5 38.9 43.2 47.5 42.3 47.0 51.7 42.3 47.0 51.7 42.3 47.0 51.7 44.9 49.9 54.8 44.9 49.9 54.8 44.9 49.9 54.8 DC — — 1.75 — — 3.8 — 0.67 — — 40 ripple — — 40 steady state — 0.38 capacitance 40 -55°C 15 kHz to 50 MHz dc resistance (rdc) fmb-461 MIN TYP MAX MIN TYP MAX +25°C +125°C input current FMA-461 MIN TYP MAX any pin to case — — steady state output current steady state — — power dissipation max current — — 5.0 A 1.0 — — 1.2 A rms — — 40 — dB 6450 — 8000 VOUT = VIN - IIN(RDC) 1.75 — — 3.8 — — — VDC — 0.42 0.07 0.10 0.15 0.07 0.09 0.10 1.3 VDC — 1900 — 2200 3700 — 4400 output voltage1 UNITS 1.6 — Ω pF VDC — 5.0 A — 2.5 W Note 1. Typical applications result in Vout within 2% of Vin. 469 H Positive Input 2.4 H Positive Output 1000 pF x2 0.1 F 0.01F 0.001F 50 Input Common Output Common 4.7 F 150 FM-461 47 pF Figure 1: Schematic www.interpoint.com Page 2 of 9 FM/A/B Rev C 20100212 1000 pF 500 V EMI Input Filters 2.4 H >150 H Positive Input FM-461, FMA-461 and FMB-461 1.75 to 5 amp x2 1000 pF x3 x2 0.1 F 0.01 F Positive Output 0.001 F 50 x2 Input Common Output Common 4.7 F 150 1000 pF 500 V FMA-461 47 pF Figure 2: Schematic Positive Input P6KE47 0.65 Positive Output 18.8 F 9.4 F 4.7 F 50 Input Common 3.5 H 3.5 H Output Common 47 pF 500V 3300 pF 500 V FMB-461 Figure 3: Schematic EMI FILTER +Vin +Vout Case Output Input Common Common Chassis ground DC/DC CONVERTER +Vin +Vout Case Output Input Common Common Multiple units allowed up to rated output current of filter RL RL The case ground connection should be as low an impedance as possible to minimize EMI. Direct contact of baseplate to chassis ground provides the lowest impedance. Figure 4: Connection Diagram www.interpoint.com Page 3 of 9 FM/A/B Rev C 20100212 EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp pin out Squared corner and dot on top of package indicate pin one. PinDesignation 1 Positive Input 2Positive Output 3 Case Ground 4 Output Common 5 Input Common 1 2 BOTTOM VIEW FM-461, FMA-461, FMB-461 5 3 4 Dotted line outlines flanged package option. See cases H3, H5, K4, and K6, for dimensions. Figure 5: Pin Out model numbering key Base Model FM, FMA, or FMB FMB - 461 F / ES MIL-STD-461 reference Case Option (Non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position) Typical Performance Curves: 25°C Tc , nominal Vin, unless otherwise specified. 90 90 CE03 Limit CE03 Limit 70 EMISSION LEVEL (dmA) EMISSION LEVEL (dmA) 70 50 30 .1 1 10 .015 50 .1 1 10 FREQUENCY (MHz) FREQUENCY (MHz) MHE Converter With FM-461 EMI Filter MHE Converter Without Filter Figure 7 Figure 6 www.interpoint.com 30 10 10 .015 50 Page 4 of 9 FM/A/B Rev C 20100212 50 EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp BOTTOM VIEW CASE H3 Solder Seal Squared corner and dot on top of case indicate pin one. 1.120 (28.45) 0.960 (24.38) 1 2 3 Solder Tip-off 0.160 (4.06) 5 4 1.855 (47.12) 0.560 (14.22) 0.255 (6.48) 0.040 dia (1.02) 2.110 (53.59) 0.000 0.25 +0.05/-0.00 (6.4 +1.3/-0.0) 0.000 0.417 max (10.59) 0.000 Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Tin Cover Cold Rolled Steel/Nickel/Tin Pins #52 alloy, compression glass seal Case H3, Rev C - 20100211 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2010 Interpoint Corp. All rights reserved. Figure 8: Case H3 - FM-461 Non-Flanged www.interpoint.com Page 5 of 9 FM/A/B Rev C 20100212 EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp BOTTOM VIEW CASE H5 Solder Seal Squared corner and dot on top of case indicate pin one. 1.120 (28.45) 0.960 (24.38) 1 2 3 Solder Tip-off 0.160 (4.06) 5 4 1.855 (47.12) 0.560 (14.22) 0.255 (6.48) 0.040 dia (1.02) 2.110 (53.59) 0.000 0.25 +0.05/-0.00 (6.4 +1.3/-0.0) 0.000 0.495 max (12.57) 0.000 Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Tin Cover Cold Rolled Steel/Nickel/Tin Pins #52 alloy, compression glass seal Case H5, Rev C - 20100211 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2010 Interpoint Corp. All rights reserved. Figure 9: Case H5 - FMA/FMB-461 Non-Flanged www.interpoint.com Page 6 of 9 FM/A/B Rev C 20100212 EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp BOTTOM VIEW CASE K4 *Flanged case: Designator “F” required in Case Option position of model number. Solder Seal Squared corner and dot on top of case indicate pin one. 1.115 (28.32) 0.955 (24.26) 0.040 dia (1.02) 1 2 0.162 dia (4.11) 3 0.555 (14.1) Solder Tip-off 5 0.155 (3.94) 4 2.910 max (73.91) Flange Thickness: 0.067 +0.005/-0.007 (1.70 +0.13/-0.8) Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Case K4, Rev E - 20100211 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2010 Interpoint Corp. All rights reserved. Figure 10: Case K4 - FM-461 Flanged www.interpoint.com Page 7 of 9 FM/A/B Rev C 20100212 2.320 (58.93) 1.845 (46.86) 0.245 (6.22) 0.000 0.230 (5.84) 0.25 ±0.03 (6.4 ±0.8) 0.000 0.417 max (10.59) 0.000 EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp BOTTOM VIEW CASE K6 *Flanged case: Designator “F” required in Case Option position of model number. Squared corner and dot on top of case indicate pin one. 1.115 (28.32) 0.955 (24.26) 1 0.040 dia (1.02) 0.555 (14.1) 2.910 max (73.91) Flange Thickness: 0.067 +0.005/-0.007 (1.70 +0.13/-0.8) Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Case K6, Rev E - 20100211 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2010 Interpoint Corp. All rights reserved. Figure 11: Case K6 - FMA/FMB-461 Flanged Page 8 of 9 FM/A/B Rev C 20100212 2.320 (58.93) 0.000 0.230 (5.84) 0.25 ±0.03 (6.4 ±0.8) 0.000 4 1.845 (46.86) 5 0.155 (3.94) 0.000 www.interpoint.com 0.162 dia (4.11) 3 Solder Tip-off 0.495 max (12.57) 2 0.245 (6.22) Solder Seal EMI Input Filters FM-461, FMA-461 and FMB-461 1.75 to 5 amp STANDARD AND /ES (NON-QML) PRODUCTS ENVIRONMENTAL SCREENING 1 standard non-Qml2 /es non-Qml2 Pre-cap Inspection Method 2017, 2032 yes yes Temperature Cycle (10 times) Method 1010, Cond. B, -55°C to +125°C, ambient no yes Constant Acceleration Method 2001, 500 g no yes Burn-in Method 1015 3 96 hours no yes Final Electrical Test MIL-PRF-38534, Group A Subgroups 1 and 4: +25°C case yes yes Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) no no yes yes yes no Final visual inspection Method 2009 yes yes test perFormed Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: Notes: 1. refers to products that do not offer QML screening. 1.2.Refers to products that do not offer QML screening. Standard and /ES, non-QML products, do not meet all of the requirements of MIL-PRF-38534. 2.3.Standard and /ES, to non-QML do not meet all of the requirements of MIL-PRF-38534. Burn-in designed bring theproducts, case temperature to the maximum case temperature of the product. Refer to the specific product information 3. Burn-in bring the case temperature to the maximum case temperature of 85°C. for the designed maximumto case temperature. FM/FMA/FMB-461 EMI Filter, FM/A/B Rev C 20100212. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. FM/FMA/FMB-461 Series is a trademark of Interpoint. Copyright © 1999 - 2010 Interpoint Corporation. All rights reserved. www.interpoint. com Page 9 of 9