© 2020 TELEDYNE RELAYS +1 (800) 284-7007 • www.teledynedefenseelectronics.com Page 1
MCR3 Series
Metal Cover Shielded Reed Relays
02022021
Specications MCR3-1A
Parameters Test Conditions Units 1 Form A
Coil Characteristics
Coil Voltage
Nominal
Maximum
Vdc
5
10
12
25
24
50
Coil Resistance +/- 10%, 20°C Ω 345 2145 7845
Operate Voltage Must Operate by Vdc Max 3.5 8.4 16.8
Release Voltage Must Release by Vdc Min 0.4 1 2
Contact Characteristics
Contact Material Rhodium
Switching Voltage Max DC/Peak AC Volts 250
Switching Current Max DC/Peak AC Amps 0.4
Carry Current Max DC/Peak AC Amps 1
Contact Rating Max DC/Peak AC Watts 12
Contact Resistance Maximum Ω 0.1
Relay Characteristics
Insulation Resistance Minimum Ω 10
9
Dielectric Strengths
Between Contacts
Coil to Contact
Case to Contact
Case to Coil
Volts
250
500
500
500
Operate Time, Typical
(bounces included)
At Nominal
Coil Voltage
mSec 1
Release Time, Typical mSec 0.1
Life Expectancy
Low Load Minimum Ops 9×10
7
Mechanical Life Minimum Ops 10
9
Environmental Characteristics
Storage Temperature °C -40 ~ +100
Operating Temperature °C -40 ~ +85
Vibration 50 - 2000 Hz G 30
Shock 11 mSec G 100
Resonance Frequency Hz 2000
Weight Maximum Oz 0.141
MCR3 Series Reed Relays:
The MCR3 Series Reed Relays can switch up to 12W, 1A
or 250Vdc. These Reed Switch Relays provide both the
consistency and reliability of a sealed reed switch with the
convenience of an integrated coil inside a metal cover package.
Rhodium switch contacts are hermetically sealed in glass,
mounted on an integral lead frame, then sealed in metal cover
with magnetic shield to minimize magnetic interference with
other relays or other components on PCB. The metal package
with terminal pins allows these relays to be soldered directly
into a PCB or inserted into sockets for convenient replacement.
Features:
• Hermetically Sealed Rhodium Contacts
• Magnet Shield
• Metal cover with terminal pins
• 1 Form A contacts
• Long Life: > 1,000,000,000 actuations
Applications:
• Automated Test Equipment
• Remote Sensing/Measurement
• Telecommunications
• Security/Access Control
• Industrial Control Systems
Please feel free to contact us for more information regarding additional options and custom congurations.
MCR 3 - 1 A 00
Teledyne Part Numbering System
Relay Series
Model Number
Number of Reeds
Coil Voltage
Relay Form
5 Vdc
12 Vdc
24 Vdc
A (Normally Open)