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参数资料
| 型号： | 414948-1 |
| 厂商： | Tyco Electronics |
| 元件分类： | 终端 |
| 英文描述： | SMB RF Connectors |
| 中文描述： | SMB 射频连接器 |
| 文件页数： | 10/17页 |
| 文件大小： | 497K |
| 代理商： | 414948-1 |
SMB Connector Specifications
Electrical Characteristics
Impedance — 50 ohms and 75 ohms, nominal
Frequency Range — 0 to 4.0 GHz
Voltage Rating (VRMS) —
Sea Level
70,000 Feet
50 ohm connectors for RG 178/U series cable
300
75
50 ohm connectors for RG 316/U series cable
400
100
75 ohm connectors for RG 179/U series cable
300
75
75 ohm connectors for RG 195/U series cable
500
125
Insulations Resistance — 1000 megohms min.
Contact Resistance — (milliohms max.)
After
Initial
Environment
Center contact
6.0
8.0
Outer contact
1.0
1.5
Braid to body
1.0
N/A
Contact Current Rating — 1.5 amps DC max.
Voltage Standing Wave Ratio (VSWR0 —
to 4.0 GHz or 80% of upper cutoff frequency of the cable, whichever is lower.
Mating Engagement
Cable
Straight
Right-Angle
RG 178/U Series
1.30 + .04F
1.45 + .06F
RG 316/U Series
1.25 + .04F
1.35 + .04F
F=GHz, does not apply to 75 ohm connectors.
RF High Potential Withstanding Voltage
Frequency — 5 MHZ
Leakage Current — N/A
50 ohm connectors for RG 178/U series cable
675 VRMS
50 ohm connectors for RG 316/U series cable
950 VRMS
75 ohm connectors for RG 179/U series cable
950 VRMS
75 ohm connectors for RG 195/U series cable
1225 VRMS
RF Leakage — –55 dB min. at 2-3 GHz
Insertion Loss — .30dB max. at 3 GHz
Mechanical Characteristics
Engagement Forces — 14 lbs. [62.3 N] maximum engagement initially.
After 500 matings, 14 lbs. [62.3 N] maximum engagement and 2 lbs. [8.8 N] minimum
disengagement for all of SMBs.
Cable Attachment —
Straight Connectors — Crimp, both center contact and braid
Right-Angle Connectors — Crimp on braid and bifurcated solder center contact
Durability — 500 cycles per MIL-C-39012
Contact Captivation — When captivated, the contacts will withstand 4.0 lbs.
minimum axial force.
Cable Retention — When properly assembled to the compatible braided coaxial
cable, the retention is equal to the breaking strength of the cable.
Marking — Per MIL-STD-130
Environmental Characteristics
Temperature Rating — –65°C to +165°C
Corrosion (salt spray) — MIL-STD-202, Method 101, test condition B, 5% salt
solution
Vibration High Frequency — MIL-STD-202, Method 204, test condition B
(15 G’s)
Shock — MIL-STD-202, Method 213, test condition B, 75 G’s at 6 milliseconds, 1 2
sine
Thermal Shock — MIL-STD-202, Method 107, test condition B, except high tem-
perature shall be +85°C. High temperature shall be +200°C for connectors using
200°C cables.
Moisture Resistance — MIL-STD-202, Method 106, when interface gasket is
used. No measurements of high humidity. Insulation resistance shall be 200
megohms minimum within five minutes after removal from humidity.
Durability Test — Conducted per MIL-C-39012 Reg. Para. 3.15, Method Para. 4.6.12
Materials
Body, Body Components and Male Contacts — Brass, half hard, per QQ-B-626,
Alloy 360, Zinc per QQ-Z-363
Female Contacts — Beryllium copper per QQ-C-530, heat treated per MIL-H-7199
Insulators — TFE fluorocarbon per ASTM D 1710, Type 1, Grade 1
Lockwashers — Phosphor bronze per QQ-B-750
Crimp Ferrule — Annealed copper alloy per WW-T-799
Gaskets — Silicone rubber per ZZ-R-765, Class 11B, Grade 65-75
Plating
Center Contacts — 0.00127 [.000050] min. Gold per MIL-G-452048 Type 1,
Grade C, Class 1, over 0.00254 [.000100] min. nickel per QQ-N-290
Other Metal Parts — Gold, Nickel or Solder plated to meet the Finish and
Corrosion requirements of MIL-C-39012
177
Catalog 1307191
Dimensions are in millimeters
Dimensions are shown for
USA: 1-800-522-6752
South America: 55-11-2103-6000
Revised 3-07
and inches unless otherwise
reference purposes only.
Canada: 1-905-470-4425
Hong Kong: 852-2735-1628
specified. Values in brackets
Specifications subject
Mexico: 01-800-733-8926
Japan: 81-44-844-8013
www.tycoelectronics.com
are standard equivalents.
to change.
C. America: 52-55-1106-0803
UK: 44-8706-080-208
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