Specifications
| Type | Description |
|---|---|
| Part Number | EL_EL303X_EL304X_EL306X_EL308X |
| Manufacturer | EVERLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | 6-pin DIP; standard DIP-6, M wide lead bend 0.4 inch spacing, S surface mount, S1 low-profile surface mount |
| Input Forward Current | 60 mA; absolute maximum rating, Ta=25°C |
| Input Reverse Voltage | 6 V; absolute maximum rating, Ta=25°C |
| Input Power Dissipation | 100 mW; absolute maximum rating, Ta=25°C |
| Input Power Dissipation Derating Factor | 3.8 mW/°C above Ta=85°C |
| Off-State Output Terminal Voltage | 250 V; EL303X, absolute maximum rating, Ta=25°C |
| Off-State Output Terminal Voltage | 400 V; EL304X, absolute maximum rating, Ta=25°C |
| Off-State Output Terminal Voltage | 600 V; EL306X, absolute maximum rating, Ta=25°C |
| Off-State Output Terminal Voltage | 800 V; EL308X, absolute maximum rating, Ta=25°C |
| Peak Repetitive Surge Current | 1 A; pw=1 ms, 120 pps, absolute maximum rating |
| On-State RMS Current | 100 mA; absolute maximum rating, Ta=25°C |
| Output Power Dissipation | 300 mW; absolute maximum rating, Ta=25°C |
| Output Power Dissipation Derating Factor | 7.6 mW/°C above Ta=85°C |
| Total Power Dissipation | 330 mW; absolute maximum rating, Ta=25°C |
| Isolation Voltage | 5000 Vrms; AC for 1 minute, RH=40% to 60%; input pins 1,2,3 shorted and output pins 4,5,6 shorted |
| Operating Temperature | -55 to 100 °C; absolute maximum rating |
| Storage Temperature | -55 to 125 °C; absolute maximum rating |
| Soldering Temperature | 260 °C for 10 seconds |
| Forward Voltage | Max 1.5 V; IF=30 mA, Ta=25°C |
| Reverse Leakage Current | Max 10 µA; VR=6 V, Ta=25°C |
| Peak Blocking Current | Max 100 nA; EL303X/EL304X, VDRM=rated VDRM, IF=0 mA; test voltage within dv/dt rating |
| Peak Blocking Current | Max 500 nA; EL306X/EL308X, VDRM=rated VDRM, IF=0 mA; test voltage within dv/dt rating |
| Peak On-State Voltage | Max 3 V; ITM=100 mA peak, IF=rated IFT |
| Critical Rate of Rise Off-State Voltage | Min 1000 V/µs; EL303X/EL304X, VPEAK=rated VDRM, IF=0, static dv/dt test circuit |
| Critical Rate of Rise Off-State Voltage | Min 600 V/µs; EL306X/EL308X, VPEAK=rated VDRM, IF=0, static dv/dt test circuit |
| Inhibit Voltage | Max 20 V; MT1-MT2 voltage above which device will not trigger, IF=rated IFT |
| Leakage in Inhibited State | Max 500 µA; IF=rated IFT, VDRM=rated VDRM, off state |
| LED Trigger Current | Max 15 mA; EL3031/EL3041/EL3061/EL3081, main terminal voltage=3 V |
| LED Trigger Current | Max 10 mA; EL3032/EL3042/EL3062/EL3082, main terminal voltage=3 V |
| LED Trigger Current | Max 5 mA; EL3033/EL3043/EL3063/EL3083, main terminal voltage=3 V |
| Holding Current | Typ 280 µA; Ta=25°C |
| Zero Voltage Crossing | Supported; monolithic silicon zero voltage crossing photo triac output |
| Input-Output Coupling | GaAs infrared emitting diode optically coupled to silicon photo triac |
| Pin 1 Function | Anode |
| Pin 2 Function | Cathode |
| Pin 3 Function | No connection |
| Pin 4 Function | Terminal |
| Pin 5 Function | Substrate; do not connect |
| Pin 6 Function | Terminal |
| Datasheet Status | request_only |
Product Overview
EL_EL303X_EL304X_EL306X_EL308X is an EVERLIGHT zero-cross triac driver photocoupler categorized under LED. Its input side is a GaAs infrared emitting diode, optically coupled to a silicon photo triac output with monolithic zero-voltage-crossing behavior.
The package is a 6-pin DIP family. Available forms include standard DIP-6, M wide lead bend with 0.4 inch spacing, S surface mount lead form, and S1 low-profile surface mount lead form. Pin functions are anode on pin 1, cathode on pin 2, no connection on pin 3, output terminals on pins 4 and 6, and substrate on pin 5, which is marked do not connect.
Critical ratings include 5000 Vrms isolation for one minute, 100 mA on-state RMS current, 1 A peak repetitive surge current, and operation from -55 to 100 °C. The series covers 250 V, 400 V, 600 V, and 800 V off-state output terminal voltage versions, supporting isolated zero-cross triac gate drive and AC switching interface designs.
Key Features
- Zero-cross triac driver photocoupler function
- GaAs infrared diode to silicon photo triac coupling
- Monolithic zero-voltage-crossing photo triac output
- 5000 Vrms input-output isolation for one minute
- 250 V to 800 V series output voltage ratings
- 100 mA absolute maximum on-state RMS current
- 1 A peak repetitive surge current rating
- Trigger current grades of 15 mA, 10 mA, and 5 mA
- 6-pin DIP with through-hole and surface-mount lead forms
- Operating temperature range from -55 to 100 °C
Typical Applications
- Isolated triac triggering
- Zero-cross AC switching interfaces
- Photo triac output coupling
- AC terminal control circuits
- DIP-6 optocoupler assemblies
- Surface-mount optotriac layouts
Procurement Notes
When requesting a quote for EL_EL303X_EL304X_EL306X_EL308X, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For LED and optoelectronic sourcing, brightness bin, wavelength or color temperature bin, forward voltage range, viewing angle, moisture sensitivity level and soldering process limits may affect final selection, availability and lead time.
FAQ
What type of device is EL_EL303X_EL304X_EL306X_EL308X?
EL_EL303X_EL304X_EL306X_EL308X is an EVERLIGHT zero-cross triac driver photocoupler. It uses a GaAs infrared emitting diode optically coupled to a silicon photo triac with monolithic zero-voltage-crossing output.
What output voltage options are covered by this family?
The series includes EL303X at 250 V, EL304X at 400 V, EL306X at 600 V, and EL308X at 800 V off-state output terminal voltage, each listed as an absolute maximum rating at Ta=25°C.
What package and lead-form options are specified?
The package family is 6-pin DIP. Options include standard DIP-6, M wide lead bend with 0.4 inch spacing, S surface mount lead form, and S1 low-profile surface mount lead form.
How are the pins assigned on this photocoupler?
Pin 1 is anode, pin 2 is cathode, and pin 3 is no connection. Pins 4 and 6 are terminals. Pin 5 is the substrate and is specified as do not connect.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.