DAT71210 XXXX
DAT71210 XXXX
DAT71210 XXXX
DAT71210 XXXX
>5mm
DAT71210 XXXX
DAT71210 XXXX
DAT71210 XXXX
DAT71210 XXXX
>5mm
>5mm
>5mm
Figure 4 : Recommended Mounting for "S" and "D" Series High Voltage Reed Relays
CONTACT
Contact Arrangements
SPNO (FORM A): Normally open - energise to close contacts
SPNC (FORM B): Normally closed – energise to open contacts
Latching: Contact is bistable – energise “SET” coil to close contacts;
energise “RESET” coil to open contacts.
Contact Isolation Voltage
The isolation voltages quoted in the data are for DC or AC peak. The
two may be considered directly equivalent, at mains frequency (i.e. 50
or 60Hz).
High voltage breakdown mechanisms at RF differ from those at DC. In
general breakdown across the contacts occurs at a higher RF peak
voltage than DC. Conversely, breakdown outside the switch (i.e. switch
to coil or screen), caused by surface tracking, can occur more readily at
high frequency than at DC. Verification of any particular voltage or
frequency combination, within the HF band (1–30MHz), can be
undertaken upon request.
Contact Switching Power
The switching power, when quoted, will be for a resistive load. It should
be noted that any combination of voltage and current can be switched,
provided they do not exceed the stated switching maximums, for either
parameter or the power rating of the contact. It should be noted that
relays, used in a power switching application, will experience reduced
operating life; it is recommended that sales be contacted for advice on
specific applications.
Contact Material – Rhodium vs Tungsten
Rhodium offers superior low contact resistance, which, coupled with
Cynergy3's copper plated reed switch technology, enables Cynergy3 to
produce very low loss RF reed relays, with exceptional current carry
performance. Rhodium contacts are offered, in our 'D' series range, for
high voltage applications, where low contact resistance and good
current carry performance are required, provided the switching voltage
is below 1000 volts DC or AC peak.
Tungsten contacts are used exclusively for our high voltage 'D' series
range, where they are offered as high voltage switching contact able to
switch voltages up to 10kV DC or AC peak at very low current.
Tungsten is a good general purpose switching contact material but the
higher contact resistance means it is not well suited for RF
applications.
PROCESSING & HANDLING
Cynergy3's reed relays are high performance products and the
materials and methods of construction are significant factors
in achieving performance specifications. The following
guidelines should therefore be followed when adopting assembly,
soldering and cleaning processes.
Handling:
Many of the RF reed relay designs are of open frame construction to
achieve optimum RF performance, these designs need to be handled
with due care to avoid damaging the exposed coil, contact and screen
connections.
Soldering:
Cynergy3 propose that either low residue fluxes are used in the
soldering process (to eliminate the need for cleaning), or that the reed
relays are fitted onto the PCB after the cleaning process has taken
place. If a solder bath is employed the maximum immersion time
recommended is10 seconds at 250°C or3 seconds at 350°C.
FRD12000/13000 Series: Electrical connections to the relay contacts
on the FRD12000/13000 Series relays are made directly onto the reed
switch leadout. Care must be taken when hand soldering to the
contact terminals, as physical and thermal shocks can damage the
glass to metal seals. It is recommended that a thermal shunt
(Aluminium Clamp) be clamped to the reed switch lead out adjacent to
the glass seal; this will reduce the chance of breakages due to thermal
shocks. Alternatively relays may be warmed prior to soldering.
Cleaning:
Cynergy3 relays are not hermetically sealed (unless stated otherwise)
and as such are not suitable to aqueous cleaning solutions or
processes. If after the soldering process the customer wishes to clean
the PCB's containing Cynergy3 relays then the use of post operative
cleaners such as IPA or HCFC based solvents with low pressure brush
applicators is recommended. Please contact sales for further
information on the suitability of various cleaning solutions.
ENVIRONMENTAL ENDURANCE
Many of the designs manufactured by Cynergy3 Components Ltd are
used in Military and Defence systems therefore many of the relay
designs have been tested for Bump, Shock and Vibration endurance to
the following standards:-
Bump Test: EN60068-2-29:1993 (Or Equivalent), 40g 6ms Pulse
Duration
Shock Test: MIL-STD-202G (Or Equivalent), 100g 6ms Pulse Duration
Vibration Test: MIL-STD-202G (Or Equivalent), 20g 5-500-5Hz
Please contact sales for any particular requirements. Alternatively
Cynergy3 can arrange product testing to other MIL, DEFSTAN or IEC
standards with various third party test houses for specific applications.
©
2019
Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components
and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.
© 2019 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.
Cynergy3 Components Ltd accepts no responsibility or liability for the information contained in this document, nor for any direct or consequential loss suffered by use of this document or the information it contains.
Cynergy3 Components Ltd. 7 Cobham Road, Ferndown Industrial Estate, Wimborne, Dorset, BH21 7PE
Telephone: +44 (0) 1202 897969 Email: sales@cynergy3.com
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