Datasheet

SURFACE MOUNT,
HIGH REPEATABILITY,
BROADBAND
TO-5 RELAYS
DPDT
SERIES
DESIGNATION
SERIES
SRF300
SRF303
RELAY TYPE
SRF300
Repeatable, RF TO-5 relay
SRF303
Sensitive, repeatable, RF TO-5 relay
DESCRIPTION
INTERNAL CONSTRUCTION
The ultraminiature SRF300 and SRF303 relays are designed to
provide a practical surface-mount solution with improved RF
UPPER
STATIONARY
CONTACT
UNIFRAME
signal repeatability over the frequency range. These relays are
engineered for use in RF attenuator, RF switch matrices, ATE and
MOVING
CONTACT
ARMATURE
LOWER
STATIONARY
CONTACT
other applications that require dependable high frequency signal
fidelity and performance.
The SRF300 and SRF303 feature:
• High repeatability
• Broader bandwidth
• Metal enclosure for EMI shielding
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
• High isolation between control and signal paths
Storage
–65°C to +125°C
Operating
–55°C to +85°C
Vibration
(General Note 1)
10 g’s to 500 Hz
Shock
(General Note 1)
30 g’s,
6ms half sine
Enclosure
Hermetically sealed
Weight
extremes and overall high reliability:
0.09 oz. (2.55g) max.
SRF303
0.16 oz. (4.5g) max.
Teledyne Part Numbering System for SMT Relays
• Uniframe motor design provides high magnetic efficiency
and mechanical rigidity
• Minimum mass components and welded construction
provide maximum resistance to shock and vibration
• Advanced cleaning techniques provide maximum assurance
SRF300 - 5 / R
R = RoHS Compliant
* Surface Mount Relays are
Solder-Coated by default
(Notes 6 & 7)
Coil Voltage
© 2009 TELEDYNE RELAYS
The following unique construction features and manufacturing
techniques provide excellent robustness to environmental
SRF300
Relay Series
• High resistance to ESD
of internal cleanliness
• Hermetically sealed
• Solder Dipped Leads, (RoHS compliant solder option available)
(800) 284-7007 • www.teledynerelays.com
SRF300/SRF303 Page 1
SRF300SRF303\062009\Q2
SERIES SRF300 AND SRF303
TYPICAL RF CHARACTERISTICS (See RF Notes)
SRF300YZ Isolation Across Contacts (RF Note 4)
SRF300YZ Pole-Pole Isolation (RF Note 5)
0
0
-10
-10
-20
P-P Isolatlon(dB)
Isolation(dB)
-20
-30
P1NC
P1NO
-40
-30
De-Energized
Energized
-40
-50
-50
-60
-70
-60
0
1
2
3
4
5
0
6
1
2
3
4
5
6
Frequency(GHz)
Frequency(GHz)
SRF300YZ Insertion Loss (RF Note 6)
SRF300YZ VSWR (RF Note 6)
4.5
0
4
-2
3
VSWR
Insertion Loss(dB)
3.5
-4
-6
P1NC
P1NO
2.5
P1NC
P1NO
-8
2
-10
1.5
-12
0
1
2
3
4
5
1
6
0
Frequency(GHz)
1
2
3
4
5
6
Frequency(GHz)
SRF300/SRF303 Time Response (RF Note 6)
1.1
0.9
90%
Volt
0.7
37ps reference
0.5
62.3ps propagation delay time
0.3
51.3ps pulse rise time
10%
0.1
-0.1
-100
0
100
200
300
400
500
600
700
800
900
Time (ps)
RF NOTES
a. Fixture: .031" copper clad, reinforced PTFE, RT/duroid® 6002 with SMA connectors.
(RT/duroid® is a registered trademark of Rogers Corporation.)
b. Room ambient temperature.
c. Terminals not tested were terminated with 50-ohm load.
d. Contact signal level: –10 dBm.
fe No. of test samples: 4.
Data presented herein represents typical characteristics and is not intended for use as specification limits.
Data is per pole, except for pole-to-pole data.
Data is the average from readings taken on all open contacts.
Data is the average from readings taken on poles with coil energized and de-energized.
Data is the average from readings taken on all closed contacts.
Test fixture effect de-embedded from frequency and time response data.
1. Test conditions:
2.
3.
4.
5.
6.
7.
SRF300/SRF303 Page 2
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
© 2009 TELEDYNE RELAYS
SRF300SRF303\062009\Q2
SERIES SRF300 AND SRF303
GENERAL ELECTRICAL SPECIFICATIONS (@25°C unless otherwise noted) (Notes 2 & 3)
Contact Arrangement
2 Form C (DPDT)
Rated Duty
Continuous
Contact Resistance
0.15 Ω max.
Contact Load Rating
Resistive: 1Amp/28Vdc
Low level: 10 to 50 μA @ 10 to 50 mV
Contact Life Ratings
10,000,000 cycles (typical) at low level
Coil Operating Power
SRF300-5: 500 mW typical @ nominal rated voltage
SRF300-12: 370 mW typical @ nominal rated voltage
SRF303-5: 250 mW typical @ nominal rated voltage
SRF303-12: 169 mW typical @ nominal rated voltage
Operate Time
SRF300: 4.0 mS max.
SRF303: 6.0 mS max.
Release Time
SRF300: 3.0 mS max.
SRF303: 3.0 mS max.
Intercontact Capacitance
0.4 pf typical
Insulation Resistance
1,000 MΩ min. between mutually isolated terminals
Dielectric Strength
350 Vrms (60 Hz) @ atmospheric pressure
DETAILED ELECTRICAL SPECIFICATIONS (@25°C)
BASE PART NUMBERS
Coil Voltage, Nominal (Vdc)
Coil Resistance (Ohms ±20%)
GENERAL NOTES
SRF300-12/SRF303-12
5.0
12.0
SRF300
50
390
SRF303
100
850
3.6
9.0
Pick-up Voltage (Vdc max.)
1. Relays will exhibit
no contact chatter in
excess of 10 μsec or
transfer in excess of 1
μsec.
2. Unless otherwise
specified, parameters
are initial values.
3. Relays may be subjected
to 260°C, peak solder
reflow temperature, three
1 minute passes.
4. Butt-lead ends are
coplanar within
.003" (0.08).
5. Application notes
available for PCB
layout and mounting
information.
6. Terminals coated with
SN60 or SN63 solder.
7. Add "/R" to end of
part number for RoHS
compliant solder coated
pins (Sn99.3/Cu0.7).
SRF300-5/SRF303-5
OUTLINE DIMENSIONS
Z Ground Pin
Y Ground Pin
NOTES:
1. DIMENSIONS ARE IN INCHES, METRIC EQUIVALENTS SHOWN IN [ ].
2. FOR BEST RF PERFORMANCE, SOLDER ENDS OF RF GROUND PINS TO PCB RF GROUND PLANE.
3. POSTITIONS 5 AND 10 ARE FOR UNINSULATED CASE GROUND OPTIONS.
4. DRAWING SHOWS: SRF300YZ
© 2009 TELEDYNE RELAYS
(800) 284-7007 • www.teledynerelays.com
SRF300/SRF303 Page 3
SRF300SRF303\062009\Q2
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