RF & MICROWAVE
SERIES
ULTRAMINIATURE
BROADBAND
ATTENUATOR RELAYS
A150
SERIES
DESIGNATION
A150
Attenuator Relay series
RELAY TYPE
INTERNAL CONSTRUCTION
DESCRIPTION
The Series A150 ultraminiature Attenuator Relays are designed for
attenuating RF signals in 50-ohm systems over a frequency range from DC
to 3 GHz. Their low profile and small grid spacing makes them ideal for use
when packaging density is a prime consideration. The A150 relays eliminate
the need for additional external resistors.
These single section, switchable attenuator relays have internal matched thin
film attenuator pads in “L,” “T” or “Pi” configurations, as applicable. Relays are
Stationary Contact
Moving Contact
Attenuator Pad/
Contact Assembly
Armature
SCHEMATIC DIAGRAM
available in fixed increments of 1, 2, 3, 4, 5, 6, 8, 10, 16 and 20 dB, which
3
2
1
Terminal view. Case ground.
5
6
7
can used singly or in combination to achieve the attenuation levels desired.
The A150 attenuator relay features:
• Unique uni-frame motor design which provides high magnetic efficiency
and mechanical rigidity.
• Minimum mass components and welded construction for maximum
resistance to shock and vibration.
• Advanced cleaning techniques which assures internal cleanliness.
• Gold plated, precious metal contacts, which provide excellent
intermodulation performance.
• Flat amplitude vs. frequency response.
• High isolation between control and signal path.
• Stable attenuation vs. temperature.
• Excellent phase linearity.
• Highly resistant to ESD.
Patent No. 5,315,273
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
–65°C to +125°C
Temperature Storage
(Ambient)
Operating
–55°C to +85°C
Vibration
(General Note 1)
Shock
(General Note 1)
Enclosure
Weight
A150 Page
1
10 g’s to 500 Hz
30 g’s,
6 msec, half-sine
Hermetically sealed
0.11 oz. (3.12g) max.
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
A150/1203/Q1
RF & MICROWAVE
SERIES A150
TYPICAL RF PERFORMANCE (Notes 2, 3 and 4)
1 dB AT T E N UATO R
V S WR ATT E N UATI O N (d B )
1.6
0.70
V S W R AT T E N UAT I O N ( d B )
1.6 1.70
2 d B ATT E N UATO R
0.80
1.80
1.4
0.90
ATTENUATION
1.4
1.90
1.00
2.00
ATTE N UAT IO N
1.2
1.10
1.2
2.10
V SWR
1.20
2.20
VSWR
1.0
1.30
1, 0 0 0
2 ,000
F REQUE NCY (MH z)
3, 0 00
4,000
1.0
2 .30
1,000
2,000
F R EQU E N CY ( M Hz )
3,000
4,000
3 dB AT T E N UATO R
V S W R AT T E N UAT I ON (d B )
1.6 2.70
V S W R AT T E N UAT I O N ( d B )
1.6
3.70
4 dB AT T E N UATO R
2.80
3.80
1.4
2.90
1.4
3.90
AT TE NUAT ION
3.00
4.00
ATTEN UATI O N
1.2
3.10
1.2
4.10
3.20
VSWR
4.20
VSWR
1.0
3 .30
1,000
2,000
F REQUENCY (M Hz)
3,000
4,000
1.0
4.30
1,000
2,000
F R EQU E N CY ( M Hz )
3,000
4,000
5 d B AT T E N UATO R
V S W R AT T E N UAT I ON (d B )
1.6
4.40
VSWR
1.6
ATTENUATION (dB)
5.40
6 d B AT T E NUATOR
4.60
5.60
1.4
4.80
1.4
5.80
ATT E NUATION
5.00
6.00
ATTEN UATI ON
1.2
5.20
1.2
6.20
5.40
VSWR
6.40
VSWR
1.0
5.60
1,000
2,000
F REQUENCY (M Hz)
3,000
4,000
1.0
6.60
1,000
2,000
F RE QU E NC Y ( M Hz )
3,000
4,000
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
A150 Page
2
A150/1203/Q1
RF & MICROWAVE
SERIES A150
TYPICAL RF PERFORMANCE (Notes 2, 3 and 4)
8 d B AT T E NUATO R
VSWR
1.6
10 dB AT T E NUATO R
VSWR
1.6
ATTENUATION (dB)
7.40
AT T E N UAT I ON ( d B )
9.40
7.60
9.60
AT T E NUAT I O N
1.4
7.80
1.4
9.80
AT T ENUATI ON
8.00
10.00
1.2
8.20
1.2
10.20
VS WR
8.40
10.40
VSWR
1.0
8.60
1,000
2,000
3,000
4,000
1.0
10.60
1,000
2,000
3,000
4,000
F REQUENC Y (M H z)
F R EQU E NC Y ( M Hz )
16 d B AT T E N UATO R
VSWR
1.6
20 dB AT T E NUATO R
VSWR
1.6
ATTENUATION (dB)
ATTENUATION (dB)
15.40
19.40
15.60
19.60
1.4
15.80
AT T E NUAT I O N
1.4
19.80
AT T ENUATION
16.00
20.00
1.2
16.20
1.2
20.20
16.40
VS WR
20.40
VSWR
1.0
16.60
1,000
2,000
3,000
4,000
1.0
20.60
1,000
2,000
3,000
4,000
F REQUE NC Y (M H z)
F RE QU E NC Y ( MH z )
T H RO U G H PAT H
VSWR
1.6
IN S E RT IO N L O S S ( dB)
0.0
0.2
I NS E RT IO N L OS S
1.4
0.4
0.6
1.2
0.8
1.0
V SW R
1.0
1.2
1,000
2,000
3,000
4,000
F REQUE NC Y (M H z)
A150 Page
3
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
A150/1203/Q1
RF & MICROWAVE
SERIES A150
RF PERFORMANCE (–55°C to +85°C) (Notes 2, 3 and 4)
PARAMETER
Insertion Loss
MINIMUM
TYPICAL
0.1
0.2
0.3
1.10
VSWR (Through path)
1.20
1.25
1.20
VSWR (Attenuated path)
1.30
1.40
ATTENUATION
1
MINIMUM
0.95
0.925
0.875
1.9
2
1.85
1.75
2.85
3
2.77
2.62
3.8
4
3.7
3.5
4.75
5
4.62
4.37
5.7
6
5.55
5.25
7.88
8
7.76
7.52
9.85
10
9.7
9.4
15.76
16
15.52
15.04
19.8
20
19.6
19.0
TYPICAL
1.0
1.0
1.0
2.0
2.0
2.0
3.0
3.0
3.0
4.0
4.0
4.0
5.0
5.0
5.0
6.0
6.0
6.0
8.0
8.0
8.0
10.0
10.0
10.0
16.0
16.0
16.0
20.0
20.0
20.0
MAXIMUM
0.25
0.35
.055
1.20
1.25
1.30
1.25
1.35
1.45
MAXIMUM
1.05
1.075
1.125
2.1
2.15
2.25
3.15
3.23
3.38
4.2
4.3
4.5
5.25
5.38
5.63
6.3
6.45
6.75
8.12
8.24
8.48
10.15
10.3
10.6
16.24
16.48
16.96
20.2
20.4
21.0
UNITS
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
UNITS
dB
dB
dB
CONDITION
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
CONDITION
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
DC–1 GHz
1–2 GHz
2–3 GHz
©2003 TELEDYNE RELAYS
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
A150 Page
4
A150/1203/Q1
RF & MICROWAVE
SERIES A150
GENERAL PERFORMANCE (–55°C TO +85°C)
PARAMETER
Operating Frequency (Note 2)
Power (Notes 5 and 6)
Impedance
PARAMETER
Contact life rating
50
Typical
at low level
10,000,000 cycles
MINIMUM
0.0
TYPICAL
MAXIMUM
3.0
1.0
UNITS
GHz
Watt
Ohms
ELECTRICAL SPECIFICATION (–55°C TO +85°C, unless otherwise specified)
PART NUMBER (Note 7)
Coil Voltage Vdc (Note 6)
Coil Resistance Ohms ±20%
Pick-up Voltage Vdc Max.
Switching Time ms (Note 8)
Insulation Resistance
Dielectric strength
Nom.
Max.
@25°C
@25°C
Max.
Typ.
A150-dB-5
5
5.8
50
3.8
A150-dB-12
12
16.0
390
9.0
4.0
2.0
1,000 MΩ typical (all mutually isolated points)
300 VRMS / 60 Hz typical (at sea level)
A150-dB-15
15
20.0
610
11.3
A150-dB-26
26.5
32.0
1,560
18.0
OUTLINE DIMENSIONS
CASE DETAIL
.335 MAX.
(8.51)
.435 MAX.
(11.05)
TELEDYNE RELAYS PART NUMBERING SYSTEM
FOR A150 ATTENUATOR RELAYS
A150
–
XX
–
XX
/
S
Q
.280
(7.11)
Series
designator
.017
+.002
DIA.
–.001
+.05
.43
–.03
.700 MIN.
(17.78)
Attenuation
value (dB)
Nominal coil S=.187" leads
voltage
See Note 9
Q=Solder-Coated Leads
G=Gold-Plated Leads
(Notes 9 & 10)
(
)
.375 MAX.
(9.53)
.200 ±.01
(5.08 ±5.08)
3
2
1
5
6
7
.150 ±.10 TYP.
(3.81 ±.25)
.475 MAX.
(12.07)
GENERAL NOTES:
1. Contacts will exhibit no contact chatter in excess of 10 μs or
transfer in excess of 1 μs.
2. Relays may be operated at higher frequencies with reduced RF
performance.
3. For optimal RF performance, solder case to RF ground plane.
4. Attenuation values shown are with reference to the through path
(low loss state).
5. Power handling for case temperatures of –55°C to +55°C is
1 Watt. Derate power handling 25 mW/°C above +55°C. Case
measurement point is adjacent to the relay tab.
6. Do not operate coil at maximum coil voltage continuously.
7. Insert attenuation value, see part numbering system.
8. Switching time includes bounce.
9. The slash and characters appearing after the slash are not
marked on the relay.
10. Unless otherwise specified, relays will be supplied with either
gold-plated or solder-coated leads.
.031 REF.
(.79)
.035 REF.
(.89)
Dimensions are show in inches (millimeters).
Terminal numbers shown are for reference only.
Leads 1 and 7 are grounded to the case.
A150 Page
5
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
©2003 TELEDYNE RELAYS
A150/1203/Q1
Embedded System
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