TDB Series

Evans Capacitor Company TDD Series Capacitors

Product Overview 

Introducing the TDB series, our newest radial form factor consisting of a 1” X 1” square footprint.

This product series delivers the same high rel rugged quality as offered in the other Evanscap product line in a compact package.

TDB series capacitors have a wide product offering range available in 5 different heights between 10-125V.

  • 1.0 x 1.0 square base
  • Heights range from 0.329 – 0.912″
  • Voltages range from 10V-125V
  • Cap values range from 750uF – 150,000uF
  • Temperature range of -55°C to 125°C
  • Standard tolerance ±20% (±10% available upon request)
  • Stud mount options available

Electrical Specifications

Electrical Specifications

Rated Voltage Range10VDC to 125VDC
Capacitance Range750uF to 150,000uF
Life (@85°C)>2000 hours @ Rated Voltage

Mechanical Specifications

Mechanical Specifications

ShockMIL-STD-202 METHOD 213GTested for 11ms at 50g
VibrationMIL-STD-202 METHOD 204
II, Letter E
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
Storage Temperature Range -62ºC to +130ºC

Capacitor Life

Capacitor Life

  • TDB 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 givenapplication is based on the specific operating voltage and average temperature.
  • TDB Series Capacitors have an unlimited Shelf life.


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
  • 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 J-STD 001 Standard Through 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.

CAD Files

For CAD file information, email

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