EL3H7B EL3H7B is a 4-pin SSOP phototransistor optocoupler from Everlight. It offers 3750 Vrms isolation voltage and a current transfer ratio of 50% to 600% at 5mA.
Mfr Part #:

EL3H7B

Available from 1 distributors
Mfr Name: Everlight Electronics
Everlight Electronics
EL3H7B is a 4-pin SSOP phototransistor optocoupler from Everlight. It offers 3750 Vrms isolation voltage and a current transfer ratio of 50% to 600% at 5mA.
Total Stock: 2,264 pcs
$ Price Range: $1.17

EL3H7B Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
2,264 pcs
2264 pcs On Request 1 On Request On Request 21+ On Request On Request

EL3H7B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Forward Voltage
Input Capacitance
Lead Style
Reverse Current
SVHC Present

EL3H7B Description

Short technical summary and product information.

The EL3H7B is a phototransistor optocoupler manufactured by Everlight Electronics, packaged in a compact 4-pin SSOP with a 2.0 mm profile. It consists of an infrared emitting diode optically coupled to a phototransistor detector, encapsulated in a green compound. The device provides a high isolation voltage of 3750 Vrms between input and output, ensuring reliable signal isolation in various applications.

 

Key electrical specifications include a current transfer ratio (CTR) of 50% to 600% at IF=5mA, VCE=5V, and 40% to 320% at IF=10mA, VCE=5V. The maximum collector-emitter voltage is 80 V, and the maximum emitter-collector voltage is 7 V. The forward voltage is typically 1.2 V to 1.4 V at 20 mA. The device operates over a temperature range of -55°C to +110°C and is suitable for DC-DC converters, programmable controllers, and telecommunication equipment.

 

The EL3H7B is RoHS3 compliant, REACH unaffected, and halogen-free (Br <900 ppm, Cl <900 ppm, Br+Cl <1500 ppm). It is approved by UL, cUL, VDE, SEMKO, NEMKO, DEMKO, FIMKO, and CQC. The moisture sensitivity level is MSL 1 (unlimited).

EL3H7B Quick Information

Product Type: Phototransistor Optocoupler
Series: EL3H7-G
Canonical Name: EL3H7B 4-Pin SSOP Phototransistor Photocoupler
Subcategory: Phototransistor Output Optocouplers

EL3H7B Compliance

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

EL3H7B Estimated Pricing

Qty Low High
1+ $1.17 $1.17

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

EL3H7B Features

  • High isolation voltage of 3750 Vrms.
  • Current transfer ratio from 50% to 600%.
  • Compact 4-pin SSOP package with 2.0 mm profile.
  • RoHS3 compliant and halogen-free.
  • Operating temperature range -55°C to +110°C.

EL3H7B Applications

  • Provides galvanic isolation in switching power supplies.
  • Interfaces microcontrollers with high-voltage industrial loads.
  • Ensures noise immunity in digital communication links.
  • Protects sensitive control circuitry from electrical transients.
  • Facilitates safe signal transfer across isolated ground planes.

EL3H7B FAQs

6 frequently asked questions generated from this part’s specifications.
What is the isolation voltage of the EL3H7B?

The isolation voltage is 3750 Vrms (AC for 1 minute, R.H. 40-60%).

What is the package type of the EL3H7B?

The EL3H7B is packaged in a 4-pin SSOP with a profile height of 2.0 mm.

What is the operating temperature range of the EL3H7B?

The operating temperature range is -55°C to +110°C.

Is the EL3H7B RoHS compliant?

Yes, the EL3H7B is RoHS3 compliant.

What is the current transfer ratio (CTR) of the EL3H7B?

The CTR is 50% to 600% at IF=5mA, VCE=5V, and 40% to 320% at IF=10mA, VCE=5V.

What is the maximum collector-emitter voltage (VCEO) of the EL3H7B?

The maximum VCEO is 80 V.

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