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UL 508

Toshiba Photorelay

General information

Mechanical relay 
Replacement(e-book)

UL508

Evaluation board
 present campaign

About UL 508 certification

UL is a safety standard certification aimed at standardization related to functions and safety of materials, equipment, products and tool sets, certified by the American Underwriters Laboratories.
Tests are conducted based on this safety standard and a certificate letter and mark are issued forthe products that pass.
Global manufacturers of equipment such as programmable logic controllers (PLC), power units, uninterruptable power supplies (UPS), and industrial control equipment achieve UL 508 certification for their products.

Within this unit certification, the parts mounted into the unit are also defined by UL 508.
Specifically, switching devices including Mechanical relays and Solid State Relays are requested to comply with the UL 508 standard. General purpose photocouplers such as logic output optocouplers are not within this scope, but photorelays which belong to the Solid State Relay product group are within the scope, and need to adopt it.

For Solid State Relays (SSR) the resin temperature constraint is defined as a 105 ° C upper limit. [Note 1] The following Toshiba photorelays (a MOSFET output type of Solid State Relay) are certified by UL 508, corresponding to NRNT, [Note 2] they can be used by up to this temperature limit.
By using our UL certified products, you can manufacture control equipment conforming to UL standards, and can secure the temperature design margin of Solid State Relays.

[Note 1] Temperature constraint on plastic (epoxy)

[Note 2] Industrial control switch, Solid state control device for non motor load

UL 508 certified Product specification

(@Ta=25℃)

Part
number
Absolute Maximum Rating

IFT
max
(mA)

RON
typ.
(Ω)

RON
max
(Ω)

COFF
typ.
(pF)

IOFF
max

tON
max
(ms)

tOFF
max
(ms)

VOFF
(V)

ION
(A)

IONP
(A)

Tc
(℃)

Topr
(℃)

(μA)

@VOFF
(V)

TLP172GM 350 0.11 0.33 105 -40~85 3.0 22 35 30 1 350 1 0.5
TLP176AM 60 0.7 2.1 105 -40~85 3.0 0.15 2 100 1 60 3 0.5
TLP3122A 60 1.4 4.2 105 -40~85 3.0 0.13 0.25 100 1 60 3 1
TLP240A 60 0.5 1.5 105 -40~85 3.0 0.6 2 130 1 60 3 1
TLP240D 200 0.25 0.75 105 -40~85 3.0 5 8 80 1 200 3 1
TLP240G 350 0.1 0.3 105 -40~85 3.0 25 35 30 1 350 2 1
TLP240GA 400 0.12 0.36 105 -40~85 3.0 17 28 80 1 400 2 1
TLP240J 600 0.09 0.27 105 -40~85 3.0 30 40 75 1 600 2 1

application

  • Industrial equipment (programmable logic controller, I / O interface)
  • Building Automation System (HVAC [Note 3], Thermostat)
  • Replacement of various mechanical relays (AC 24 to 400V system, DC 24 to 125 V system)

[Note 3] HVAC (Heating, Ventilation and Air Conditioning)

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.