MEDER electronic
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High Frequency and
High Power Reed Relays
Part Number Example
HF05 - 1A54 - 6
05 is the nominal voltage
1A is the contact form
54 is the switch model
6 is the breakdown voltage (6 kVDC)
High voltage RF Reed Relays use a patented coil
encapsulation, external electrostatic shields, and
magnetic shields. For this series we use a special
copper-plated Form A switch with a breakdown
voltage up to 10 kVDC. The contacts are suitable
for carrying current up to 3 Amps (5 Amps available)
at 30MHz.
DESCRIPTION
APPLICATIONS
DIMENSIONS
All dimensions in mm [inch]
ORDER INFORMATION
• Radio frequency technology
• Antenna tuning units
• Transmit / receive requirements
FEATURES
• Normally open contacts (Normally closed
contacts are available)
• 5 Amps available
HF Series
Series Nominal
Voltage
Contact
Form
Switch
Model Pin Out
HF XX - XX 54 - X
Options 05, 12, 24 A, B 5, 6, 7, 8, 9
MEDER electronic
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COIL DATA
PIN OUT
HF Series
Contact
Form
Switch
Model
Coil
Voltage
Coil
Resistance
Pull-in
Voltage
Drop-out
Volage
Nominal
Coil Power
All Data
at 20 °C
VDC ΩVDC VDC mW
Nom. Max. Min. Typ. Max. Max. Min. Typ.
1A
54
5 7.5 36 40 44 3.5 0.75 625
12 16 225 250 275 8.4 1.8 575
24 30 900 1000 1100 16.8 3.6 575
1B **
5 7.5 27 30 33 3.5 0.75 835
12 16 153 170 187 8.4 1.8 850
24 30 612 680 748 16.8 3.6 850
* The pull-in / drop-out voltage and coil resistance will change at rate of 0.4% per °C.
** Re-closure of Form B may occur if the max. coil voltage is exceeded. Coil polarity on Form B must be observed. Pin ve is
positive.
High Frequency and
High Power Reed Relays
MEDER electronic
162
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RELAY DATA
High Frequency and
High Power Reed Relays
HF Series
All Data at 20° C Switch Model →
Contact Form →
Switch 54
Form A / B
Contact Ratings Conditions Min. Typ. Max. Unit
Switching Power Any DC combination of V & A not
to exceed their individual max.‘s 25 W
Switching Voltage 1 MHz to 30 MHz 500 V
Switching Current 1 MHz to 30 MHz 1.5 A
Carry Current 1 MHz to 30 MHz 5.0 A
Static Contact Resistance w/ 0.5 V & 10mA 150 mΩ
Dynamic Contact Resistance Measured w/ 0.5V & 50mA 1.5
ms after closure 200
Insulation Resistance across
Contacts
Across contacts
Contact to coil
Coil to shield
1010
1010
1010
Ω
Breakdown Voltage across
Contact
Across contacts
Contact to coil
Coil to shield
*
10
0.5
kVDC
Operation Time incl. Bounce Measured w/ 100 % overdrive 3.0 ms
Release Time Measured w/ no coil suppression 1.0 ms
Capacitance
Across contacts
Contact to coil
Coil to shield
2.5
10
20
pF
Life Expectancies
Switching 5 V - 10 mA DC only & <10 pF stray cap. 50 106
Cycles
For other load requirements please see our life test section on P. 120.
Environmental Data
Shock Resistance 1/2 sinus wave duration 11 ms 50 g
Vibration Resistance From 10 - 2000 Hz 20 g
Ambient Temperature 10°C/ minute max. allowable -40 85 oC
Stock Temperature 10°C/ minute max. allowable -40v 105 oC
Soldering Temperature 5 sec. 260 oC
