Evans Capacitor Company THS3 Series Capacitors

Product Overview

The capacitor shall utilize sintered tantalum anodes and ruthenium oxide coated cathodes operating in aqueous electrolyte with additives. The components shall be hermetically sealed in a welded tantalum case with a glass-to-metal anode terminal seal.

The THS3 Series comes in a 1.4” x 1.4” square.

Electrical Specifications

Electrical Specifications

Rated Voltage Range10VDC to 125VDC
Capacitance Range4,200uF to 200,000uF
Life (@85ºC)>2000 hours @ Rated Voltage

Mechanical Specifications

Mechanical Specifications

ShockMIL-STD-202 METHOD 213GTested for 11ms at 50g
VibrationMIL-STD-202 METHOD 204
II, Letter D
12 sweeps/axis, 20g peak
1.5 hours/axis, 19.64g peak
Moisture ResistanceMIL-STD-202 METHOD 1066V Polarity
Solderability To ANSI J-STD-002.
Operating Temperature Range -55ºC to +85ºC or 125ºC with voltage derating (see part number table)
Storage Temperature Range -62ºC to +130ºC

Thermal Dissipation

Thermal Dissipation

In free air, THS3 Series exhibit a case temperature rise of approximately 20˚C per watt dissipated.

Capacitor Life

Capacitor Life

THS3 Series capacitors are rated for >2,000 hours at 85°C and rated voltage or 125°C at de-rated voltage. The effective life of a capacitor in a given application is based on the specific operating voltage and average temperature.

THS3 Series Capacitors have an unlimited Shelf life.

Environmental Compliance

Environmental Compliance

All THS3 ratings are RoHS 9/10 compliant to EU RoHS Directive 2011/65/EU.

  • Negative terminal is 60/40 SnPb plated copper wire
  • Positive Terminal is 60/40 SnPb plated Nickel Tube

Handling Guidelines

Handling Guidelines

Attachment / Mounting by leads only is discouraged in applications exposed to mechanical shock or vibration. Always ensure capacitor is firmly secured to PWB, by either mounting studs, epoxy staking or both (preferred for vibration environments).

Provide adequate care to protect the Glass to Metal Seal (GTMS)

  • Avoid forces on the positive terminal, lateral, axial or torque.
  • Avoid mechanical shock to the positive terminal.
  • Secure the part to PWB before soldering

Mounting with studs

  • #2-56 CDA-752 studs are available as a standard option.
  • Use spacers (provided) to fill the gap between PWB and leaded surface of capacitor.
  • Tighten Studs to 30-40 in-oz.
  • Secure nuts (provided) with red Loctite. Do not use lock washers.

Potting / Epoxy Staking

  • We advise epoxy staking capacitor to PWB even when using studs, for maximum vibration tolerance.
  • In some applications it may be advisable to pot the cavity between the PWB and leaded surface.
  • Highest shock/vibration applications may require the capacitor to be fully potted.


  • Rim of Capacitor is intended to mate directly to PWB. Advise using no-clean flux.
  • Utilize ANSI J-STD 001 Standard Through Hole Soldering methods.

Lead trimming

  • Provide adequate care if leads must be trimmed.
  • Trimming the positive terminal is not recommended.
  • Lead lengths available in 1/32” increments from 0.125” when measured from the rim of the capacitor.

Evans Capacitor Company THS3 Series Capacitor mounting

CAD Files

THQA2/M2 Series CAD Files

THQA2 Empty Assembly

THQM2 Empty Assembly