RH1009 - Radiation Hardened 2.5V Reference


  • MIL-PRF-38535 Class V Compliant Version - 5962R8961002
  • Voltage tolerance ±5mV up to 200Krads(Si) TID
  • Long term stability: 20ppm/kHr
  • Low Dynamic Impedance and Wide Operating Current Range
  • Adjust Pin For Optional Calibration of System Errors
  • Reverse Breakdown Current: 20mA
  • Forward Current: 10mA
  • Available In Metal Can, Ceramic Flatpack and as Unpackaged Dice

Radiation Performance

  • Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883:
    - 200kRad (Si), per condition A at 50Rads(Si)/sec
    - 50kRad (Si), per condition D at 10mRads(Si)/sec
    - ELDRS Pass 50kRad(Si)
  • Displacement Damage Defect (DDD) up to 1E12 Neutrons/cm2

Typical Application

RH1009 Typical Application


The RH1009 is a general purpose 2.5V shunt regulator diode designed to operate over a wide current range while maintaining good stability with time and temperature. The adjust terminal allows either temperature coefficient to be minimized or the reference voltage to be adjusted without changing the temperature coefficient. Because it operates as a shunt regulator it can be used equally well as a positive or negative reference.

The wafer lots are processed to Linear Technology’s in-house Class S flow to yield circuits usable in stringent military applications.

Third Party Vendor Availability

Linear Technology partners with third party vendors who assemble and test packaged products with LTC RH Dice inside.

For MSK prefix products please click on the Part Number in the table below and scroll down the linked page to find the part number.

Part Number Description SMD
MSK109RH Precision 2.5V Reference -
MSK110RH Dual Precision 2.5V Reference -
MSK5950RH 5A Ultralow Voltage Adjustable Regulator, Split Bias -


For complete and up to date package information and drawings, please refer to our packaging page

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards


  • A/D and D/A Convertors
  • Precision Regulators
  • Measurement and Control Systems
  • Power Supply Monitors

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

Design Tools


LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:

Technical Support