Specifications
| Type | Description |
|---|---|
| Part Number | XLM440A-G |
| Manufacturer | XINGLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Component Type | Other |
| Package Case | SOP4 |
| Contact Form | Normally open SPST |
| Isolation Voltage | 3750 Vrms; between input and output; AC for 1 minute, 40% to 60% RH |
| Operating Temperature | -40 to +85 °C |
| Storage Temperature Range | -40 to +100 °C |
| Input Forward Current | 50 mA maximum rating, TA=25°C unless otherwise specified |
| Input Peak Forward Current | 1 A maximum rating; pulse width <=1 us, duty ratio 0.001 |
| Input Reverse Voltage | 5 V maximum rating, TA=25°C unless otherwise specified |
| Input Power Dissipation | 75 mW maximum rating, TA=25°C unless otherwise specified |
| Load Voltage | 60 V maximum rating, peak AC |
| Continuous Load Current | 0.5 A maximum rating, peak AC |
| Peak Load Current | 1.5 A maximum rating, TA=25°C unless otherwise specified |
| Output Power Dissipation | 300 mW maximum rating, TA=25°C unless otherwise specified |
| LED Turn-On Current | typ 0.4 mA, max 3 mA; IL=0.5 A, TA=25°C unless otherwise specified |
| LED Turn-Off Current | typ 0.3 mA, max 3 mA; IL=0.5 A, TA=25°C unless otherwise specified |
| LED Dropout Voltage | min 1 V, typ 1.3 V, max 1.4 V; IF=5 mA, TA=25°C unless otherwise specified |
| On Resistance | typ 0.9 ohm, max 1.5 ohm; IF=5 mA, IL=0.5 A, within 1 s on time, TA=25°C unless otherwise specified |
| Off-State Leakage Current | max 1000 nA; IF=0 mA, VL=60 V, TA=25°C unless otherwise specified |
| Turn-On Time | typ 0.17 ms, max 2 ms; IF=5 mA, IL=0.5 A, TA=25°C unless otherwise specified |
| Turn-Off Time | typ 0.14 ms, max 1 ms; IF=5 mA, IL=0.5 A, TA=25°C unless otherwise specified |
| I/O Capacitance | typ 0.8 pF, max 1.5 pF; f=1 MHz, VB=0, TA=25°C unless otherwise specified |
| Initial I/O Isolation Resistance | min 1000 Mohm; 500 VDC, TA=25°C unless otherwise specified |
| Package Type | SOP4 |
| Shipping Quantity | 3000 pcs/Tape & Reel |
| Marking Code | XLM440A |
| Molding Compound Flammability | UL 94V-0 |
| Reflow Preheat Temperature | min 150 °C, max 200 °C |
| Reflow Preheat Time | min 60 s, max 120 s |
| Reflow Ramp-Up Rate | 3 °C/s; TL to TP |
| Reflow Liquidus Temperature | 217 °C |
| Reflow Time Above Liquidus | min 60 s, max 150 s; above TL |
| Reflow Peak Temperature | 260 °C |
| Reflow Peak Time | 30 s; time during which Tc is between TP-5 and TP |
| Reflow Ramp-Down Rate | 6 °C/s; TP to TL |
| Maximum Reflow Cycles | No more than 3 times |
| Wave Soldering Average Ramp-Up Rate | ~200 °C/s |
| Wave Soldering Heating Rate During Preheat | typ 1 to 2 °C/s, max 4 °C/s |
| Wave Soldering Final Preheat Temperature | ~130 °C |
| Wave Soldering Preheat Time | >60 s; 25 °C to Ts |
| Wave Soldering Peak Temperature | 260 °C |
| Wave Soldering Peak Time | 10 s |
| Wave Soldering Ramp-Down Rate | max 5 °C/s |
| Hand Soldering Iron Temperature | 360 °C +5 °C; within 3 s for product rework or sample testing |
| Packing Quantity Per Reel | 3000 pcs/reel; SOP4 reel, diameter 330 mm |
| Packing Quantity Per Box | 6000 pcs/box; 2 reels/box |
| Packing Quantity Per Carton | 60000 pcs/carton; 10 boxes/carton |
| Antistatic Bag Specification | 380 x 420 mm |
| Box Specification | 350 x 340 x 60 mm |
| Carton Specification | 365 x 330 x 370 mm |
| Datasheet Status | request_only |
Product Overview
XLM440A-G is a XINGLIGHT SOP4 photo relay with a normally open SPST contact form. It is categorized as an LED component and uses an input LED control side with an isolated output switching side. The datasheet specifies 3750 Vrms isolation between input and output under AC 1 minute test conditions at 40% to 60% RH.
The input side is rated for 50 mA forward current, 1 A peak forward current under pulse conditions, 5 V reverse voltage, and 75 mW power dissipation. Output ratings include 60 V peak AC load voltage, 0.5 A continuous load current, 1.5 A peak load current, and 300 mW output power dissipation.
Key operating characteristics include 0.4 mA typical LED turn-on current, 0.3 mA typical LED turn-off current, 1.3 V typical LED dropout voltage, 0.9 ohm typical on resistance, and maximum 1000 nA off-state leakage. The SOP4 package is supplied as 3000 pcs per tape-and-reel, with additional box and carton packing quantities defined for production logistics.
Key Features
- Normally open SPST photo relay contact form
- SOP4 package with XLM440A marking code
- 3750 Vrms input-to-output isolation rating
- 60 V peak AC load voltage rating
- 0.5 A continuous load current rating
- 1.5 A peak load current rating
- Typical 0.9 ohm on resistance
- Maximum 1000 nA off-state leakage current
- Typical 0.17 ms turn-on time
- UL 94V-0 molding compound flammability
Typical Applications
- Isolated SPST load switching
- Normally open relay replacement
- 60 V peak AC load control
- 0.5 A load switching circuits
- SOP4 surface-mount assemblies
- Tape-and-reel production builds
- Rework and sample testing
Procurement Notes
When requesting a quote for XLM440A-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 contact form does XLM440A-G use?
XLM440A-G is specified as a photo relay with a normally open SPST contact form. The contact form is listed in the datasheet feature description and aligns with the product type.
What isolation voltage is specified for XLM440A-G?
The datasheet specifies 3750 Vrms isolation voltage between input and output. The stated test condition is AC for 1 minute at 40% to 60% relative humidity.
What are the main load ratings for XLM440A-G?
The output side is rated for 60 V peak AC load voltage, 0.5 A continuous load current, and 1.5 A peak load current. Output power dissipation is rated at 300 mW.
How is XLM440A-G supplied for assembly?
XLM440A-G uses the SOP4 package and is listed with 3000 pcs per tape-and-reel. Packing data also specifies 3000 pcs per reel, 6000 pcs per box, and 60000 pcs per carton.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 4, 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.