STF28-461 [CRANE]
EMI INPUT FILTER 28 VOLT INPUT; EMI输入滤波器28伏特的输入
| 型号： | STF28-461 |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | EMI INPUT FILTER 28 VOLT INPUT |
| 文件： | 总4页 (文件大小：60K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
STF28-461
EMI FILTER
0.8 AMP
EMI INPUT
28 VOLT
F
ILTER
NPUT
I
FEATURES
• Fully qualified to Class H or K
• Passive components for
maximum tolerance in space
environments
MODEL
STF28-461
0.8 amp
• –55° to +125°C operation
• 28 volt input
• Up to 0.8 amps throughput current
• 50 dB minimum attenuation
at 500 kHz
Size (max.): 0.975 x 0.800 x 0.270 (24.77 x 20.32 x 6.86 mm)
See Section B8, cases A1, for dimensions.
• Compliant to MIL-STD-461C, CE03
• Compatible with MIL-STD-704E
DC power bus
Weight:
10.3 grams typical, 11.5 grams maximum
Screening: Standard, Class H, or Class K (MIL-PRF-38534)
See Section C2 for screening options, see
Section A5 for ordering information.
DESCRIPTION
The STF28-461™ EMI filter module has been designed as a
companion for Interpoint SMSA flyback power converters. Multiple
SMSA power converters can be operated from a single filter
provided the total power line current does not exceed the filter
maximum rating. The STF filter will reduce the SMSA’s power line
reflected ripple current to within the limit of MIL-STD-461C, Method
CE03, as shown in the example of Figures 4 and 5.
OPERATION
The SMSA power converter has an internal capacitor across its
input power terminals. When the SMSA and STF filters are used
together, this capacitor becomes part of the filter and forms its final
LC output section.
The STF filter provides both differential and common mode rejection
bringing DC/DC converters into compliance with MIL-STD-461C
CE03. It is designed to be used with the SMSA, SMHF, and MCH
Series of converters. The STF filter can be used with multiple
converters up to the rated current of the filter.
The STF filter is fabricated using thick film hybrid technology and is
sealed in a metal package for space, military, aerospace and other
applications requiring EMI suppression.
SCREENING AND REPORTS
For more information, contact your Interpoint representative
listed in Section A5.
The STF28-461 filter offers three screening options – Standard,
Class H, or Class K. See Section C2, Quality Assurance, pages C2-
7
through C2-9, for descriptions. Detailed reports on product
performance are also available and are listed on page C2-9.
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. STF28-461 is a trademark of Interpoint.
Copyright © 1999 Interpoint. All rights reserved.
B1-16
CASE A
CASES
Dot on top of case
indicates pin one.
BOTTOM VIEW CASE A1
FMSA EMI Filter: Screening – Standard, ES, or 883
STF EMI Filter: Screening – Space Standard, H, or K
Projection Weld
CASE A
BOTTOM VIEW
See Figures 2 - 4
Seam Seal
Squared corner and dot on
top of case indicate pin one.
0.800 max
(20.32)
0.697
for pin configurations.
(17.70
1
8
2
6
3
4
0.397
(10.08)
0.975 max
(24.77)
0.097
(2.46)
0.000
7
5
Materials
Header
Kovar/Nickel/Gold
(Case A3, Kovar/Nickel)
Kovar/Nickel
Kovar/Nickel/Gold,
matched glass seal
Cover
Pins
0.018 ± 0.002 dia.
(0.46 ± 0.05)
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
FIGURE 2: CASE A1
BOTTOM VIEW CASE A2
MCH Series: Screening – Standard, ES, or 883
SLH Series: Screening – Space Standard, H, or K
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.
Projection Weld
Seam Seal
Squared corner and dot on
top of case indicate pin one.
0.697
(17.70
1
7
2
3
4
5
FIGURE 1: CASE A MAXIMUM DIMENSIONS
0.018 ± 0.002 dia.
(0.46 ± 0.05)
0.097
(2.46)
0.000
6
FIGURE 3: CASE A2
BOTTOM VIEW CASE A3
DCH Series: Screening – Standard or ES
Seam Seal
Projection Weld
Dot on top of case
indicates pin one.
0.697
(17.70
1
2
3
8
0.018 ± 0.002 dia.
(0.46 ± 0.05)
0.097
(2.46)
0.000
9
16 15 14
Note: Although every effort has been made to render the case
drawings at actual size, variations in the printing process may
cause some distortion. Please refer to the numerical dimensions
for accuracy.
FIGURE 4: CASE A3
B8-6
QA SCREENING
SPACE PRODUCTS
S
PACE
P
RODUCTS
ELEMENT EVALUATION
TEST PERFORMED
STANDARD
CLASS
H
CLASS
(O)
K
(COMPONENT LEVEL)
M/S
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
P
M/S
P
M/S
P
Element Electrical
no yes yes yes
no yes yes yes
yes
yes
no
Element Visual
Internal Visual
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no no
no no
Temperature Cycling
Constant Acceleration
Interim Electrical
Burn-in
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
no
no
Post Burn-in Electrical
Steady State Life
Voltage Conditioning /Aging
Visual Inspection
Final Electrical
no
no
yes
yes
yes
yes
no
no yes yes yes
no yes yes yes
*
Wire Bond Evaluation
SEM
no
no
no yes
SLAM™/C-SAM:
Input capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes no
yes
Notes
M/S Active components (Microcircuit and Semiconductor Die)
P
*
Passive components
Not applicable to EMI filters that have no wirebonds
Definitions
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
Applies to the following products:
SMFLHP Series
SMFL Series
SMHP Series (O&H only) SMSA Series
SMTR Series SLH Series
SSP Series
SMHF Series
SLIM Module
SFMC EMI Filter
STF EMI Filter
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
C2-7
QA SCREENING
SPACE PRODUCTS
ENVIRONMENTAL SCREENING
TEST PERFORMED
(END ITEM LEVEL)
Non-destruct bond pull*
Method 2023
Pre-cap inspection
Method 2017, 2032
Temperature cycle
Method 1010, Cond. C
Constant acceleration
Method 2001, 3000 g
PIND Test
STANDARD
(O)
CLASS
H
CLASS
K
no
yes
yes
yes
no
no
yes
yes
yes
no
yes
yes
yes
yes
yes
Method 2020, Cond. B
Radiography
Method 2012
Pre burn-in test
no
yes
no
yes
yes
yes
Burn-in, Method 1015, 125°C
96 hours
160 hours
2 x 160 hour (includes mid BI test)
Final electrical test
MIL-PRF-38534, Group A
Hermeticity test
yes
no
no
no
yes
no
no
no
yes
yes
yes
yes
Fine Leak,
Method 1014, Cond. A
Gross Leak,
Method 1014, Cond. C
Final visual inspection
Method 2009
yes
yes
yes
yes
yes
yes
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Note
* Not applicable to EMI filters that have no wirebonds.
Applies to the following products:
SMFLHP Series
SMFL Series
SMHP Series (O&H only)
SMTR Series
SMHF Series
SMSA Series
SLH Series
SLIM Module
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
SFMC EMI Filter
STF EMI Filter
SSP Series
C2-8
相关型号：
STF28NM60ND
N-channel 600 V, 0.120 Ohm typ., 24 A FDmesh(TM) II Power MOSFET (with fast diode) in TO-220FP package
STMICROELECTR
STF2HNK60Z
N-CHANNEL 600V - 4.4ヘ - 2.0A TO-92/TO-220FP/IPAK Zener-Protected SuperMESH MOSFET
STMICROELECTR
©2020 ICPDF网 联系我们和版权申明