XL815-G Photo Darlington Optocoupler

XINGLIGHT LED — specifications, applications, sourcing support and RFQ.

XL815-G Photo Darlington Optocoupler

RFQ Available Sourcing Support Alternative Matching RoHS
Part Number
XL815-G
Manufacturer
XINGLIGHT
Package
DIP4, DIP4-M, SMD4
Category
LED
Product Type
SMD LED

Quick Sourcing Note

XL815-G from XINGLIGHT is an LED-category Photo Darlington optocoupler offered in DIP4, DIP4-M, and SMD4 package cases. Key datasheet parameters include a 600-7500 % current transfer ratio at IF=1 mA and VCE=2 V, 5000 Vrms isolation voltage for 1 minute, and an operating temperature range of -55 to +110 °C. The device supports forward current up to 60 mA, collector current up to 80 mA, and collector-emitter voltage up to 40 V. Based on its optocoupler structure and isolation ratings, it is suited for isolated signal transfer, input-output isolation, and low-frequency switching interfaces.

Specifications

TypeDescription
Part NumberXL815-G
ManufacturerXINGLIGHT
Product TypeSMD LED
CategoryLED
Package CaseDIP4, DIP4-M, SMD4
Current Transfer Ratio600-7500 %; IF=1 mA, VCE=2 V
Isolation Voltage5000 Vrms; 40-60% RH, AC for 1 minute
Operating Temperature-55 to +110 °C; maximum rating
Forward Current60 mA; Ta=25°C unless otherwise specified
Reverse Voltage6 V; Ta=25°C unless otherwise specified
Peak Forward Current1 A; pulse width <=1 us, duty ratio 0.001
Input Power Dissipation100 mW; Ta=25°C unless otherwise specified
Input Power Dissipation Derating Factor5.8 mW/°C; above Ta=100°C
Input Thermal Resistance Junction-Ambient325 °C/W; Ta=25°C unless otherwise specified
Input Thermal Resistance Junction-Case200 °C/W; Ta=25°C unless otherwise specified
Collector Power Dissipation150 mW; Ta=25°C unless otherwise specified
Collector Current80 mA; Ta=25°C unless otherwise specified
Collector-Emitter Voltage40 V; Ta=25°C unless otherwise specified
Emitter-Collector Voltage7 V; Ta=25°C unless otherwise specified
Total Power Dissipation200 mW; Ta=25°C unless otherwise specified
Storage Temperature Range-55 to +125 °C; maximum rating
Soldering Temperature260 °C; 10 seconds
Forward Voltagetyp 1.2 V, max 1.4 V; IF=20 mA, Ta=25°C
Input Reverse Currentmax 10 uA; VR=4 V, Ta=25°C
Terminal Capacitancetyp 30 pF, max 250 pF; VR=0 V, f=1 kHz, Ta=25°C
Collector-Emitter Dark Currentmax 1000 nA; VCE=10 V, Ta=25°C
Collector-Emitter Breakdown Voltagemin 40 V; IC=0.1 mA, IF=0, Ta=25°C
Emitter-Collector Breakdown Voltagemin 7 V; IE=10 uA, IF=0, Ta=25°C
Collector-Emitter Saturation Voltagetyp 0.8 V, max 1 V; IF=20 mA, IC=5 mA, Ta=25°C
Isolation Resistancemin 5×10^10 ohm; VIO=500 Vdc, 40-60% RH, Ta=25°C
Isolation Capacitancetyp 0.6 pF, max 1.0 pF; VIO=0, f=1 MHz, Ta=25°C
Cut-off Frequencytyp 6 kHz; VCE=5 V, IC=2 mA, RL=100 ohm, -3 dB
Turn-on Timetyp 60 us, max 300 us; VCE=2 V, RL=100 ohm
Turn-off Timetyp 53 us, max 250 us; IC=10 mA
Molding Compound FlammabilityUL 94V-0; mechanical data
DIP4 Shipping Quantity100 pcs/tube; XL815 package option
DIP4-M Shipping Quantity100 pcs/tube; XL815M package option
SMD4 Shipping Quantity2000 pcs/tape and reel; XL815S package option
Reflow Preheat Temperature150-200 °C; Ts
Reflow Preheat Time60-120 s; ts
Reflow Ramp-up Ratemax 3 °C/s; TL to TP
Reflow Liquidus Temperature217 °C; TL
Reflow Time Above Liquidus60-150 s; tL
Reflow Peak Temperature260 °C; Tp
Hand Soldering Temperature360 °C +5°C within 3 s; product rework or sample testing
Datasheet Statusrequest_only

Product Overview

The XL815-G is a XINGLIGHT Photo Darlington optocoupler in the LED category. Its input side is specified with 60 mA forward current, 6 V reverse voltage, 100 mW input power dissipation, and 325 °C/W junction-to-ambient thermal resistance. The output side is specified for 80 mA collector current, 40 V collector-emitter voltage, and 150 mW collector power dissipation.

Key Features

  • 600-7500 % current transfer ratio at IF=1 mA
  • 5000 Vrms isolation voltage for one minute
  • -55 to +110 °C operating temperature range
  • 60 mA maximum forward current rating
  • 80 mA collector current rating
  • 40 V collector-emitter voltage rating
  • Typical 6 kHz cut-off frequency
  • Typical 60 us turn-on time
  • Typical 53 us turn-off time
  • UL 94V-0 molding compound flammability
  • DIP4, DIP4-M, and SMD4 package options
  • 260 °C peak reflow temperature profile

Typical Applications

  • Isolated signal transfer
  • Input-output electrical isolation
  • Low-frequency switching interfaces
  • Darlington optocoupler output stages
  • Control circuit isolation
  • SMD4 tape-and-reel assembly
  • DIP4 tube-based assembly

Procurement Notes

When requesting a quote for XL815-G, 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 the XL815-G?

The XL815-G is a XINGLIGHT Photo Darlington optocoupler in the LED category. The extracted datasheet facts list package support for DIP4, DIP4-M, and SMD4.

What isolation rating is specified for XL815-G?

The datasheet extraction specifies 5000 Vrms isolation voltage under 40-60% RH with AC applied for 1 minute. Isolation resistance is listed as a minimum of 5×10^10 ohm at VIO=500 Vdc.

What switching times are listed for XL815-G?

The listed turn-on time is typ 60 us and max 300 us at VCE=2 V with RL=100 ohm. Turn-off time is typ 53 us and max 250 us at IC=10 mA.

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.

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