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KPC357 The Cosmo KPC357NT is a 4-pin mini-flat phototransistor optocoupler with 3750Vrms isolation. It offers a minimum CTR of 50% at 5mA.
Mfr Part #:

KPC357

Available from 1 distributors
Mfr Name: Cosmo
Cosmo
The Cosmo KPC357NT is a 4-pin mini-flat phototransistor optocoupler with 3750Vrms isolation. It offers a minimum CTR of 50% at 5mA.
✓ Total Stock: 400 pcs
$ Price Range: $0.99

KPC357 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Tomark Electronics Ltd ✓
Non-Authorised Inventory information
400 pcs
On Request
400 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

KPC357 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Forward Current
Lead Spacing
Mounting Type
Operating Temperature
Peak Forward Current
Power Dissipation
Reverse Current
Reverse Voltage
Storage Temperature
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KPC357 Description

Short technical summary and product information.

The Cosmo KPC357NT is a single-channel DC-input optocoupler featuring a phototransistor output. It is housed in a compact 4-pin mini-flat package with a 2.0mm profile, suitable for high-density mounting applications.

 

Key electrical characteristics include an isolation voltage of 3750Vrms and a minimum Current Transfer Ratio (CTR) of 50% at IF=5mA and Vce=5V. The device operates over a wide temperature range from -55°C to +115°C.

 

This optocoupler is designed for applications such as hybrid substrates, programmable controllers, DC-DC converters, and telecommunication equipment. Its features make it a reliable choice for signal isolation in various electronic systems.

KPC357 Quick Information

Product Type: Optocoupler
Series: KPC357NT Series
Canonical Name: KPC357NT 4-Pin Mini-Flat Phototransistor Optocoupler
Subcategory: Phototransistor Output

KPC357 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

KPC357 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

KPC357 Features

  • 3750Vrms isolation voltage rating.
  • 50% minimum current transfer ratio.
  • 80V collector-emitter breakdown voltage.
  • Surface mount 4-Pin Mini-Flat package.
  • Operating temperature range -55°C to +115°C.

KPC357 Applications

  • Suitable for high-density mounting.
  • Used in programmable controllers.
  • Ideal for DC-DC converters.
  • Applicable to telecommunication equipment.

KPC357 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the KPC357NT optocoupler?

The isolation voltage between input and output is 3750Vrms.

What is the minimum Current Transfer Ratio (CTR) for the KPC357NT?

The minimum CTR is 50% at an input current of 5mA and Vce of 5V.

What type of package does the KPC357NT use?

The KPC357NT is packaged in a 4-pin mini-flat package.

What is the operating temperature range for the KPC357NT?

The operating temperature range is -55°C to +115°C.

Is the KPC357NT RoHS compliant?

The KPC357NT is RoHS3 Compliant.

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