EEWORLDEEWORLDEEWORLD

Part Number

Search

ER421ZM2-26A/SQ

Description
RF Relay, SPDT, Latched, 0.013A (Coil), 26.5VDC (Coil), 290mW (Coil), 0.5A (Contact), 28VDC (Contact), DC Input, AC/DC Output, Through Hole-Straight Mount
CategoryMechanical and electronic products    relay   
File Size241KB,6 Pages
ManufacturerTeledyne Technologies Incorporated
Websitehttp://www.teledyne.com/
Download Datasheet Parametric View All

ER421ZM2-26A/SQ Overview

RF Relay, SPDT, Latched, 0.013A (Coil), 26.5VDC (Coil), 290mW (Coil), 0.5A (Contact), 28VDC (Contact), DC Input, AC/DC Output, Through Hole-Straight Mount

ER421ZM2-26A/SQ Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerTeledyne Technologies Incorporated
Reach Compliance Codecompliant
ECCN codeEAR99
body height7.11 mm
Body length or diameter9.4 mm
Maximum coil current (DC)0.013 A
Coil operating voltage (DC)18 V
Coil power290 mW
Coil release voltage (DC)18 V
Coil resistance2000 Ω
Maximum coil voltage (DC)26.5 V
Coil/Input Power TypeDC
Contact (AC) maximum rated R load.25A@115VAC
Maximum contact current (AC)0.25 A
Maximum contact current (DC)0.5 A
Contact (DC) maximum rated R load.5A@28VDC
Maximum contact voltage (AC)115 V
Maximum contact voltage (DC)28 V
Contact/Output Power TypeAC/DC
Electrical life100000 Cycle(s)
JESD-609 codee0
Manufacturer's serial number421
Installation featuresTHROUGH HOLE-STRAIGHT MOUNT
operating hours3 ms
Maximum operating temperature125 °C
Minimum operating temperature-65 °C
Relay actionLATCHED
Relay functionSPDT
Relay typeRF RELAY
sealHERMETICALLY SEALED
surface mountNO
switching time3 ms
Terminal surfaceTin/Lead (Sn/Pb)
Termination typeSOLDER
SERIES
MAGNETIC-LATCHING
ESTABLISHED RELIABILITY
TO-5 RELAYS
SPDT
SERIES
DESIGNATION
421
421D
421DD
SPDT basic relay
SPDT relay with internal diode for coil transient suppression
SPDT relay with internal diodes for coil transient suppression and polarity
reversal protection
RELAY TYPE
421
DESCRIPTION
The magnetic-latching TO-5 relay, originally conceived and
developed by Teledyne, has become one of the industry standards
for low-level switching from dry circuit to 0.5 ampere. Designed for
high-density PC board mounting, its small size and low coil power
dissipation make the 421 relay one of the most versatile
ultraminiature relays available.
The following unique construction features and manufacturing
techniques provide excellent resistance to environmental extremes
and overall high reliability:
• All welded construction.
• Unique uni-frame design providing high magnetic efficiency and
mechanical rigidity.
• High force/mass ratios for resistance to shock and vibration.
• Advanced cleaning techniques provide maximum assurance of
internal cleanliness.
• Precious metal alloy contacts material with gold plating assures
excellent high current and dry circuit switching capabilities.
The Series 421D and 421DD utilize discrete silicon diodes for coil
suppression and polarity reversal protection.
By virtue of its inherently low intercontact capacitance and contact
circuit losses, the 421 relay has proven to be an excellent
ultraminiature RF switch for frequency ranges well into the UHF
spectrum. A typical RF application for this TO-5 relay is in handheld
radio transceivers, wherein the combined features of good RF
performance, small size, low coil power dissipation and high
reliability make it a preferred method of transmit-receive switching
(see Figure 1).
The Series 421 magnetic-latching relays are ideally suited for
applications where coil power dissipation must be minimized. The
relays can be operated with a short duration pulse. After the contacts
have transferred, no external holding power is required.
The magnetic latching feature of the Series 421 provides a “memory”
capability, since the relays will not reset upon removal of coil power.
PERMANENT MAGNET
MAGNETIC CIRCUIT A
SOFT IRON CORE A
PRINCIPLE OF OPERATION
MAGNETIC CIRCUIT B
Energizing Coil B produces a magnetic field
COIL A
COIL B
opposing the holding flux of the permanent magnet
SOFT IRON
in Circuit B. As this net holding force decreases, the
SOFT IRON
CORE A
CORE B
attractive force in the air gap of Circuit A, which also
AIR GAP
results from the flux of the permanent magnet,
SOFT IRON
ARMATURE
MOVING
CONTACT
becomes great enough to break the armature free
of Core B, and snap it into a closed position against
Core A. The armature then remains in this position
STATIONARY
CONTACT
upon removal of power from Coil B, but will snap
back into position B upon energizing Coil A. Since operation depends upon cancellation
of a magnetic field, it is necessary to apply the correct polarity to the relay coils as
indicated on the relay schematic. When latching relays are installed in equipment, the
latch and reset coils should not be pulsed simultaneously. Coils should not be pulsed
with less than rated coil voltage and the pulse width should be a minimum of three times
the specified operate time of the relay. If these conditions are not followed, it is possible
for the relay to be in the magnetic neutral position.
ENVIRONMENTAL AND
PHYSICAL SPECIFICATIONS
Temperature
(Ambient)
Vibration
(General Note 1)
Shock
(General Note 1)
Acceleration
Enclosure
Weight
–65°C to +125°C
30 g’s to 3000 Hz
100 g’s,
6 msec, half-sine
50 g’s
Hermetically sealed
0.089 oz. (2.52g) max.
©2005 TELEDYNE RELAYS
421/1205/Q1
421 Page 1
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
www.teledynerelays.com
I want to know about inout [7:0]SD, the 8-bit data on the bus. I can both read and write the data on the bus.
So, what type should my [7:0]SD be set to? Should I set it to wire or reg? Please give me some advice....
sun870824 FPGA/CPLD
PASS F5 Power Amplifier
PASS F5 is a simple and famous circuit. Actually, I have wanted to make it for a long time, but I never started. Under the encouragement of others, I finally bought some 240 and 9240 and soldered them...
灞波儿奔 Analogue and Mixed Signal
Transfer of basically new ZedBoard development board
[color=#ff0000]ZedBoard is a low-cost development board based on the Xilinx Zynq-7000 Extended Processing Platform (EPP). This board can run designs based on Linux, Android, Windows or other OS/RTOS. ...
rowen Buy&Sell
CPU card design example and program design--external authentication, card and ESAM common
/*******************************************Function name: ExternVerifyFunctionfunction: External authentication, common to cards and ESAMInput parameters: cReceCardData1[8] command data 8 bytes, cKey...
Jacktang Microcontroller MCU
Pay attention to mobile phone radiation standards
Mobile phone radiation standards have again attracted attention 2006-6-16The issue of mobile phone radiation standards has existed in China for many years. Recently, it has heated up sharply with a re...
ehk RF/Wirelessly
Infrared pyroelectric processing chip BISS0001
BISS0001 is a high-performance sensor signal processing integrated circuit, which is equipped with a pyroelectric infrared sensor and a small number of external components to form a passive pyroelectr...
rain MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2461  2850  740  2457  1405  50  58  15  29  54 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号