© 2021 TELEDYNE RELAYS (800) 284-7007 • www.teledynedefenseelectronics.com Page 1
Series GLB363
LoopBack Relay
Up to 16Gbps
GLB363\082021
SERIES
DESIGNATION
RELAY TYPE
GLB363
LoopBack Relay, Sensitive Coil, Surface Mount Ground Shield and Stub pins with AC Bypass
Capacitors or No capacitor
LoopBack Relay
GLB363 Series
With Built-in AC Bypass Capacitors /
DC LoopBack Relay
DESCRIPTION
The LoopBack Series relay combines two DPDT
electromechanical relays in one package that includes
an internal bypass path for Automated Test
Equipment (ATE) applications. The LoopBack
combines the technology of two Teledyne RF/GRF303
Series relays which eliminates the need for
external PCB traces in loop back test applications.
This innovation results in superior signal integrity and
RF performance, while taking minimal board space.
The GLB363 Series is designed for digital signaling
application and provides excellent signal integrity up to
16 Gbps data rates.
The internal in-line capacitors allow you to eliminate
the footprints for external components, while
performing AC bypass functions internal to the relay.
The capacitors used feature excellent signal integrity
as well as low loss high frequency performance.
A typical loop-back load board application uses the
Device Under Test (DUT) to test itself. In this method,
the transmitter from the DUT is connected through a
loop back path to the receiver of the DUT. The double
pole design of the LoopBack relay is perfectly suited
for dierential signaling, allowing the relay to provide
transmit and receive signals and their inversions to the
DUT or through the bypass path.
The internal structure of the LoopBack relay reduces
the number of discontinuities and shortens the signal
path during loop back testing, providing lower insertion
loss and higher signal integrity performance than two
SRF303 Series relays. In the normally closed mode
(de-energized) the LoopBack relay
provides four normally closed contacts. When
energized, the moving contacts are connected
together across the loop back structure to provide two
through paths. The normally closed contacts have
similar performance to SGRF303 Series relays.
This LoopBack Relay is available with a surface mount
ground shield and J-lead conngurations to provide
improved high data rate and high frequency
performance and ease of surface mount attachment.
The DC LoopBack conguration provides internally
shorted paths to allow “auxiliary” full spectrum signal
routing.
ENVIRONMENTAL AND PHYSICAL
SPECIFICATIONS
Temperature
(Ambient)
Storage –65°C to +125°C
Operating –55°C to +85°C
Vibration
(Note 1)
10 g’s to 500 Hz
Shock
(Note 1)
30 g’s,
6ms half sine
Enclosure Hermetically sealed
Weight GLB363 0.18 oz. (5.10g) max.
Page 2 SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE © 2021 TELEDYNE RELAYS
Series GLB363
LoopBack Relay
Up to 16Gbps
GLB363\082021
Contact Arrangement Special (See Schematic on page 5)
Rated Duty Continuous
Contact Resistance 0.200 Ω max. initial (measured 1/8" from the header)
Contact Load Rating
Resistive: 1Amp/28Vdc
Low level: 10 to 50 μA, 10 to 50 mV
Contact Life Ratings 5,000,000 cycles (typical) at low level
Operate Time 4.0 ms max.
Release Time 3.0 ms max.
Insulation Resistance 1,000 MΩ min. between mutually isolated terminals
Dielectric Strength 350 Vrms (60 Hz) @ atmospheric pressure
BASE PART NUMBERS
GLB363-x-5 GLB363-x-12
Coil Voltage, Nominal (Vdc) 5.0 12.0
Coil Resistance (Ohms ±20%) 56 400
Pick-up Voltage (Vdc max.) 3.6 9.0
Coil Operating Power (mW) 450 360
GENERAL ELECTRICAL SPECIFICATIONS (-65°C to +125°C unless otherwise noted)(Notes 2 & 3)
DETAILED ELECTRICAL SPECIFICATIONS (-65°C to +125°C unless otherwise noted)(Note 3)
RF NOTES (for following page)
1. Test conditions: 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.
e. No. of test samples: 4.
2. Data presented herein represents typical characteristics and is not intended for use as specification limits.
3. Data is per pole, except for pole-to-pole data.
4. Data is the average from readings taken on all open contacts.
5. Data is the average from readings taken on poles with coil energized and de-energized.
6. Data is the average from readings taken on all closed contacts.
7. Test fixture effect de-embedded from frequency and time response data.
GLB363 - 100 - 5
Relay Series
Coil Voltage
5 = 5V
12 = 12V
Part Numbering System (Note 4)
Capacitance
000 = No Capacitor
100 = 100nF
010 = 10nF
220 = 220nF
NOTES
1. Relays will exhibit no contact chatter in excess of 10 µs or transfer in excess of 1 µs.
2. “Typical” characteristics are based on available data and are best estimates. No on-going verication tests are performed.
3. Unless otherwise specied, parameters are initial values.
4. Unless otherwise specified, relays will be supplied with gold-plated leads.