A-7

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Attenuators (Continued)

SMA MICRO-ATTENUATOR

Typical specifications of the 929 and the 413
series include:
Frequency: DC to 18 GHz VSWR (MAX):
1.07 + .015 x F(GHz)
  • Power Rating:
    2.0 W @ +25oC
    derated linearly to 0.5 W @ +125oC
  • Attenuation:
    0-30 dB in 1 dB increments
  • Accuracy:
    1-6 dB 0.3 dB
    7-20 dB 0.5 dB
    21-30 dB 1.0 dB
  • Temperature:
    -65oC to 125oC
The SMA Jack/Plug attenuator is constructed of passivated stainless steel with teflon insulator and beryllium copper contact. It may be used to pad erratic loads or reduce power levels over a broad band.

ASI delivery is from stock for 0 dB thru 10 dB and 20 dB.

 1. Mating
Interface dimensions per Mil-C-39012/SMA Series
and Solitron/Microwave MD-107

2. Materials
Body & Coupling Nut:
Stainless Steel per AMS-5640, Type 303, Cond. A
Contacts:
Beryllium Copper per QQ-C-530, Cond. H, Alloy 173
Dielectric:
Teflon per Mil-P-19468 and L-P-403, Type 1
Gasket:
Rubber, Silicone per ZZ-R-765, Class 11B,
Grade 50 to 60.

3. Finish
Body & Coupling Nut:
Passivated per QQ-P-35A Type 1
Contact:
Gold per Mil-G-45204, Type II Grade C, Class 2; over Copper per Mil-C-14550, Class 4.
Sleeve:
Nickel per QQ-N-2902 watt ASI Miniature Fixed

2 watt ASI Minature Fixed Attenuators (0.86 inch long)
Attenuation Value (dB) Accuracy (dB) Max SWR 18 GHz Part Number Price ea.
0 +0.3/-0 1.35:1 929-6200-* 24.00
0 +0.3/-0 1.35:1 413-803-* 28.00
1-6 ±0.3 1.35:1 413-803-* 23.00
1-6 ±0.3 1.35:1 929-6200-* 26.00
7-8 ±0.4 1.35:1 413-803-* 23.00
7-8 ±0.4 1.35:1 929-6200-* 26.00
9-10 ±0.5 1.35:1 413-803-* 23.00
9-10 ±0.5 1.35:1 929-6200-* 26.00
20 ±0.6 1.35:1 413-803-20 29.20
@ 20oC. Linearly derated to 0 watts @ 125oC. * Complete part number with attenuation value.



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