Coto 9002 Series

  • Coto Technology

Product Features

  • High reliability reed relays
  • High insulation resistance of 1012Ω minimum
  • Switching current 0.5A
  • Optional coil suppression diode
  • Optional coaxial shield for 50Ω impedance
  • Temperature range −20°C to +85°C


  • Compliant

The 9002 high performance SIP reed relay series from Coto features available coil voltage options of 5VDC and 12VDC with a switching voltage of 200V and switching current of 0.5A. Optional coaxial shielding for 50Ω impedance and switching of fast rise time digital pulses, as well as an optional coil suppression diode which protects coil drive circuits. The 9002 series relays are the industry standard when high reliability and consistent performance are desired in a compact package, with high speed switching compared to electromechanical relays. They have hermetically sealed contacts for long life (tested up to 1 billion operations) and with a moulded thermoset body on integral lead frame design, these relays are ideally suited to the needs of automated test equipment, instrumentation, telecommunications and RF applications.

  • Reed relay
  • Nominal coil voltage options of 5VDC and 12VDC
  • Contact form of 1A
  • Switching voltage of 200V
  • Dielectric strength of 300VDC
  • Contact rating 10W
  • Switching current 0.5A
  • High insulation resistance of 1012Ω minimum
  • Temperature range −20°C to +85°C
  • Optional coaxial shielding
  • Optional coil suppression diode
  • Moulded 6 pin SIP package

Typical Applications include:

  • Automated test equipment
  • RF requirements
  • Instrumentation
  • Telecommunications applications

For further information regarding coil specifications, contact ratings and relay specifications please see the datasheet on the Technical Library tab.

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Weight 0.00000 kg
Dimensions 8.10 x 5.64 x 19.80mm
Coil Voltage


Contact Form

Contact Rating

Dielectric Strength

Diode Option


Series / Model



Switching Voltage

RoHS Compliant Product – Coto

This product is available fully compliant to the RoHS EU directive 2011/65/EU.

Coto 9001 and 9002 Series Technical Library

We are pleased to provide you with a range of additional content including videos, product datasheets, case studies, white papers and application notes for your reference. Please see below for the latest content available:



Coto 9001 and 9002 reed relay series datasheet
Coto Technology sensors and switches product sheet
Coto RedRock™ TMR magnetic sensor product catalogue
Coto Technology reed relay and reed switch selector charts
CotoMOS® MOSFET relay selector chart
White Papers
Testing reed relays and reed switches for reliability white paper
Life expectancy for reed relays in high temperature environments white paper
Application Notes – TMR Sensors
The importance of magnet protection within harsh environments application note
Interfacing the Coto Technology RedRock™ RR110 to an ADC using a low power analog interface circuit application note
Ready for take-off using the RedRock™ RR130 in wildlife tracking devices application note
Size matters in capsule endoscopy application note
The evolution of magnetic sensing technology: from hall effect to tunneling magnetoresistance (TMR) application note
Using RedRock™ TMR magnetic sensors RR121 for speed and direction estimation in rotating systems application note
Improving a simple 3-wire level sensor assembly by using the RedRock™ RR131 TMR digital switch application note
Modernising security systems with TMR for higher reliability, wider sensing range and long battery life application note
How to replace a 2-wire reed switch with a 3-wire sensor application note
Application Notes – CotoMOS® MOSFETs
CotoMOS® technical and applications information application note
Applications of small signal relays in photovoltaic inverters application note
Increasing the ampacity of the CotoMOS® CS128 opto-isolated SSR by parallel operation application note
Output muting in headphone amplifiers and portable speakers with negligible harmonic distortion using CotoMOS® relays application note
Dual-rail battery switching using CotoMOS® relays in portable headphone amplifiers and portable powered speakers application note
RR110 ultra low power 'wake up' application note
How to increase your current capacity of 6-pin CotoMOS® solid state MOSFET relays by up to 100% application note
Application Notes – Classic Reed Relays
Reed relays technical and application information application note
Applications of small signal relays in photovoltaic inverters application note
If it ain't broke fix it application note
Leadform follows function in RF reed relay design application note
The heat is on when you test at 125°C (2970 Series) application note
Optimising cable tester switching architecture using the Coto Technology 9104-0022 high voltage reed relay application note
Best practices for applying Coto Technology's 9852 Form C reed relay application note
Coto Technology's 9814 reed relay application note
Application Notes – Classic Reed Switches
Reed switches technical and applications information application note
Reliable reed switching best practices for normally closed applications application note
Nobody said designing utility meters was easy application note
Rules of attraction for reliable reed switch-magnet applications application note
Liquid level sensing using reed switch technology application note
Liquid level sensing using reed switch technology application note (detailed)
The importance of magnet protection within harsh environments application note
Reed switch life characteristics under different levels of capacitive loading application note
Coto DYAD switch contact style application note
CT10-G4's rugged lead-frame design is a feature and a benefit application note




  • Coto Technology

Coto 9002 Series

Please be advised that due to the ongoing supply issues with raw materials affecting the global electronics industry, as well as an increase in orders received by our manufacturing partners, a large number of products are facing increased lead times in recent months. For the latest lead time and stock availability, please contact one of our engineers who will be happy to discuss lead times further and the potential for alternative parts.