Specifications
| Type | Description |
|---|---|
| Part Number | XL440A-G |
| Manufacturer | XINGLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package Case | DIP4 or SMD4; package outline dimensions referenced in mm but numeric dimensions not provided in extracted text |
| Switch Configuration | Normally open, single-pole single-throw; feature description |
| Control Voltage Capability | 400 VAC or DC; feature description |
| Isolation Voltage | 5000 Vrms; between input and output |
| Operating Temperature | -40 to +85 °C; feature description |
| Molding Compound Flammability | UL 94V-0; mechanical data |
| Terminal Finish | Matte tin-plated leads; solderability per MIL-STD-202, Method 208 |
| Package Option | DIP4; part number XL440A |
| Package Option | SMD4; part number XL440AA |
| Shipping Quantity | 100 pcs/tube; XL440A DIP4 |
| Shipping Quantity | 2000 pcs/tape and reel; XL440AA SMD4 |
| Marking Code | XL440A; both DIP4 and SMD4 part numbers |
| Forward Current | 50 mA maximum; Ta=25°C unless otherwise specified |
| Peak Forward Current | 1 A; pulse width <=1 us, duty ratio 0.001 |
| Reverse Voltage | 5 V; input maximum rating, Ta=25°C unless otherwise specified |
| Input Power Dissipation | 75 mW maximum; Ta=25°C unless otherwise specified |
| Load Voltage | 400 V; peak AC output maximum rating, Ta=25°C unless otherwise specified |
| Continuous Load Current | 0.12 A; peak AC output maximum rating, Ta=25°C unless otherwise specified |
| Peak Load Current | 0.3 A; 100 ms, 1 shot, VL=DC |
| Output Power Dissipation | 500 mW maximum; Ta=25°C unless otherwise specified |
| Isolation Voltage | 5000 Vrms; 40 to 60% RH, AC for 1 minute |
| Operating Temperature Range | -40 to +85 °C; thermal characteristics |
| Storage Temperature Range | -40 to +100 °C; thermal characteristics |
| LED Turn-On Current | typ 0.6 mA, max 3 mA; IL=0.12 A, Ta=25°C unless otherwise specified |
| LED Turn-Off Current | min 0.1 mA, typ 0.5 mA; IL=0.12 A, Ta=25°C unless otherwise specified |
| LED Dropout Voltage | min 1 V, typ 1.3 V, max 1.5 V; IF=5 mA, Ta=25°C unless otherwise specified |
| On Resistance | typ 13 ohm, max 20 ohm; IF=5 mA, IL=0.12 A, within 1 s on-time |
| Off-State Leakage Current | max 1000 nA; IF=0 mA, VL=400 V |
| Turn-On Time | min 10 us, typ 110 us, max 2000 us; IF=5 mA, IL=0.12 A |
| Turn-Off Time | min 10 us, typ 220 us, max 1000 us; IF=5 mA, IL=0.12 A |
| I/O Capacitance | min 0.8 pF, max 1.5 pF; f=1 MHz, VB=0 |
| Initial I/O Isolation Resistance | min 1000 Mohm; 500 VDC |
| Recommended LED Forward Current | 5 to 10 mA; application note |
| Reflow Preheat Temperature | min 150 °C, max 200 °C; reflow soldering profile |
| Reflow Preheat Time | min 60 s, max 120 s; reflow soldering profile |
| Reflow Ramp-Up Rate | max 3 °C/s; TL to TP |
| Reflow Liquidus Temperature | 217 °C; reflow soldering profile |
| Reflow Time Above Liquidus | min 60 s, max 150 s; above TL |
| Reflow Peak Temperature | 260 °C; reflow soldering profile |
| Reflow Peak Time | 30 s; Tc between TP-5 and TP |
| Reflow Ramp-Down Rate | max 6 °C/s; TP to TL |
| Reflow Cycle Limit | No more than 3 times; recommended reflow soldering |
| Wave Soldering Average Ramp-Up Rate | ~200 °C/s; wave soldering profile feature |
| Wave Soldering Preheat Heating Rate | typ 1 to 2 °C/s, max 4 °C/s; during preheat |
| Wave Soldering Final Preheat Temperature | ~130 °C; Ts |
| Wave Soldering Preheat Time | >60 s; 25 °C to Ts |
| Wave Soldering Peak Temperature | 260 °C; Tp |
| Wave Soldering Peak Time | 10 s; time within peak temperature tp |
| Wave Soldering Ramp-Down Rate | max 5 °C/s; wave soldering profile |
| Hand Soldering Iron Temperature | 360 °C +5 °C; within 3 s, only for product rework or sample testing |
| DIP4 Tube Quantity | 100 pcs/tube; tube length 500 mm |
| DIP4 Box Quantity | 5000 pcs/box; 50 tubes/box |
| DIP4 Carton Quantity | 50000 pcs/carton; 10 boxes/carton |
| SMD4 Reel Quantity | 2000 pcs/reel; reel diameter 330 mm |
| SMD4 Box Quantity | 4000 pcs/box; 2 reels/box |
| SMD4 Carton Quantity | 20000 pcs/carton; 10 boxes/carton |
| Datasheet Status | request_only |
Product Overview
XL440A-G is a XINGLIGHT normally-open photo relay in the LED category. The switching configuration is normally open, single-pole single-throw, with a stated control voltage capability of 400 VAC or DC and 5000 Vrms isolation between input and output.
Key Features
- Normally-open, single-pole single-throw switching
- 400 VAC or DC control voltage capability
- 5000 Vrms input-to-output isolation rating
- -40 to +85 °C operating temperature range
- DIP4 and SMD4 package options listed
- 400 V peak AC output load voltage
- 0.12 A continuous load current rating
- Typical 13 ohm on resistance at IF=5 mA
- Maximum 1000 nA off-state leakage at 400 V
- Recommended LED forward current is 5 to 10 mA
- UL 94V-0 molding compound flammability
- Matte tin-plated leads per MIL-STD-202 Method 208
Typical Applications
- Isolated AC or DC load switching
- Normally-open SPST control circuits
- Low-current relay replacement circuits
- Control signal isolation interfaces
- Board-level 400 V load control
- Systems needing 5000 Vrms isolation
- DIP4 tube-assembled designs
- SMD4 tape-and-reel assembly
Procurement Notes
When requesting a quote for XL440A-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 XL440A-G?
XL440A-G is identified as a XINGLIGHT normally-open photo relay in the LED category. Its switch configuration is normally open, single-pole single-throw, and the extracted package options are DIP4 and SMD4.
What load ratings are listed for XL440A-G?
The extracted ratings list a 400 V peak AC output load voltage, 0.12 A continuous load current, and 0.3 A peak load current for 100 ms, one shot, with VL=DC.
What isolation rating does XL440A-G provide?
The datasheet facts list 5000 Vrms isolation between input and output. A separate isolation-voltage condition specifies 5000 Vrms at 40 to 60% RH with AC applied for 1 minute.
What LED drive current is recommended?
The application note lists a recommended LED forward current of 5 to 10 mA. Electrical data also lists LED turn-on current as typically 0.6 mA and maximum 3 mA at IL=0.12 A.
What soldering limits are provided for assembly?
The reflow profile lists 150 to 200 °C preheat for 60 to 120 s, 217 °C liquidus, 260 °C peak, and no more than three reflow cycles. Wave soldering also lists a 260 °C peak for 10 s.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 2, 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.