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Diamond Point International

Tri-M TBP4xxx - a Capacitor Backup for HESC & HPSC PSUs

500, 1000, 2000 and 4000 Joules, Mate Directly to Bottom of Tri-M PSUs, -40 to +85 Operation


TBP4xxx modules are extended temperature, maintenance free, high cycling backup energy modules that when combined with a Tri-M HESC (HESC104, HESC104+ and HESC-SERD) or HPSC (HPSC104-SER) smart charging power solution creates a complete uninterruptable power system (UPS) in a PC/104 footprint. The TBP4xxx designed for hostile environments of extreme temperatures and vibration. This rugged backup energy module is ideal for applications that have either a large number of discharge cycles or where a "maintenance free" solution is required such as remote and hard to access locations.

TBP4xxx Modules are available in 500, 1000, 2000 and 4000 joules and mate directly to the bottom of HESC or HPSC power supplies.

Key Specifications

  • Fully charged in less than a minute
  • 500,000 charge cycles
  • Deep discharge immune
  • Extreme temperature operation
  • High altitude capable (info available on request)
  • Designed for high vibration and shock environments
  • PC/104 size footprint
  • Cable free mating with HESC & HPSC


  • Designed to MIL Standards
  • Prevents loss of data or corruption due to reliable system backup power
  • Reduced downtime due to maintenance-free operation
  • High Density PC/104 footprint
  • Improved reliability due to cable free integration of HESC & HPSC


  • Military & Civil Vehicles
  • Aerospace & Defence
  • Industrial Automation
  • Telecommunications
  • Undersea & Marine


Power Supply

InputMaximum voltage: 13V
Output(s)Recommended maximum load wattage
TBP4K50: 40W
TBP41K0: 40W
TBP42K0: 80W
TBP44K0: 80W
EfficiencyMaximum 88%
IsolationIsolation Voltage 2250V Max.
• TBP4K50: 500 joules
• TBP41K0: 1000 joules
• TBP42K0: 2000 joules
• TBP44K0: 4000 joules

Holdup time for loads 5W / 10W / 25W / 50 W:
• TBP4K50: 100s / 50s / 20s / not recommended
• TBP41K0: 200s / 100s / 40s / not recommended
• TBP42K0: 400s / 200s / 80s / 40s
• TBP44K0: 800s / 400s / 160s / 80s


ExpansionNo busses
ElectricalSee above for more details
MechanicalDimensions: 90 x 96, standard PC/104 size
Height (in addition to the standard 0.662" PC/104 card height):
• TBP4K50: 0 mm
• TBP41K0: 46.5 mm
• TBP42K0: 46.5 mm
• TBP44K0: 61.5 mm
Conformal CoatingOn request
TemperatureTemperature range (operation): -40°C to +85°C
Temperature range (storage): -40°C to +85°C
WeightTBP4K50: 120g
TBP41K0: 190g
TBP42K0: 330g
TBP44K0: 490g
Warranty1 Year

Ordering Details

BoardTBP4xxx-PBF where “xxx” is the joules in three digit notation:
"xxx" = K50 500 joules (TBP4K50-PBF)
"xxx" = 1K0 1000 joules (TBP41K0-PBF)
"xxx" = 2K0 2000 joules (TBP42K0-PBF)
"xxx" = 4K0 4000 joules (TBP44K0-PBF)
-CH Add suffix for Humiseal conformal coating and epoxy (factory installed)
-CS Add suffix for Silicon conformal coating and epoxy (factory installed)
-CU Add suffix for Urethane conformal coating and epoxy (factory installed)