Specifications
| Type | Description |
|---|---|
| Part Number | XL-S4437PDC |
| Manufacturer | XINGLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | SMD, 4.4 x 3.7 x 0.55 mm |
| Outline Dimensions | 4.4 x 3.7 x 0.55 mm; L/W/H |
| RoHS Compliance | Compliant; environmental protection product meets RoHS requirements |
| Moisture Sensitivity Level | MSL 3; moisture sensitivity level |
| Packaging Standard | EIA standard packaging; standard packaging |
| SMT Compatibility | Suitable for SMT automatic production; assembly process |
| Reflow Soldering Compatibility | Suitable for reflow soldering process; assembly process |
| Maximum Reverse Voltage | 5 V; Ta=25°C |
| Operating Temperature Range | -40 to +85°C; Ta=25°C absolute maximum rating |
| Storage Temperature Range | -40 to +100°C; Ta=25°C absolute maximum rating |
| Lead Soldering Temperature/Time | 260°C, <=6 s; absolute maximum rating |
| Pulse Width Limit | <=0.1 ms; note for ratings |
| Duty Cycle Limit | <=1/10; note for ratings |
| Light Current at 940 nm | min 38 µA, typ 55 µA; VCE=1 V, Ee=1 mW/cm², Ta=25°C |
| Light Current at 525 nm | min 20 µA, typ 25 µA; VCE=1 V, Ee=1 mW/cm², Ta=25°C |
| Light Current at 660 nm | min 29 µA, typ 35 µA; VCE=1 V, Ee=1 mW/cm², Ta=25°C |
| Dark Current | max 20 NA; VCE=1 V, Ee=0 mW/cm², Ta=25°C |
| Forward Voltage | typ 0.7 V; IF=1 mA, Ee=0 mW/cm², Ta=25°C |
| Capacitance | typ 28 pF, max 80 pF; VR=1 V, Ee=0 mW/cm², f=1 MHz, Ta=25°C |
| Sensitivity Wavelength Range | 400 to 1100 nm; Ta=25°C |
| Radiant Sensitive Area | typ 7.8 mm²; photosensitive area |
| Solderability Test | 0/22 failures; JESD22-B102, precondition 155±5°C for 8 h, Tsol=260±5°C for 10 s, 1 time, 22 samples |
| Resistance to Soldering Heat Test | 0/22 failures; JESD22-A106, Tsol=260±5°C for 10 s, 3 times through furnace, 22 samples |
| ESD HBM Test | 0/6 failures; JESD22-A114, HBM 250 V, 500 V, 1000 V, 2000 V, forward and reverse 3 times each |
| High Temperature Storage Test | 0/22 failures; JESD22-A103, Ta=100°C, 1000 h, 22 samples |
| Low Temperature Storage Test | 0/22 failures; JESD22-A119, Ta=-40°C, 1000 h, 22 samples |
| Thermal Shock Test | 0/22 failures; JESD22-A104, -40°C for 30 min to 100°C for 30 min, 300 cycles, 22 samples |
| High Temperature DC Operating Life | 0/77 failures; MIL-STD-750 Method 1037, T=85°C, VR=-5 V, 1000 h, 77 samples |
| High Temperature High Humidity Storage | 0/22 failures; JESD22-A101, T=85°C, RH=85%, 1000 h, 22 samples |
| Damage Criterion - Forward Voltage | Initial data ±20%; VF measured at IF=IFT |
| Damage Criterion - Reverse Current | IR <=10 µA; VR=5 V |
| Damage Criterion - ESD HBM | IR <=2 µA; VR=5 V |
| Tape Dimension Tolerance | ±0.1 mm; belt and disk dimensions, size unit mm |
| Hand Soldering Iron Power | <30 W; recommended for repair/rework only |
| Hand Soldering Temperature | <300°C; each terminal soldered once |
| Hand Soldering Time | <3 s; per terminal, one time only |
| Maximum Reflow Cycles | 2; reflow soldering |
| Recommended Maximum Reflow Temperature | 240±5°C for 6 s; product recommended maximum welding temperature |
| Cleaning Solvent | Alcohol recommended; after soldering |
| Cleaning Condition | <=30°C for 3 min or <=50°C for 30 s; alcohol cleaning after soldering |
| Ultrasonic Cleaning Power | <=300 W; pretest required to confirm no LED damage |
| Unopened Storage Condition | <=30°C, <60% RH, use within 1 year; before opening moisture-proof anti-electrostatic package |
| Opened Storage Condition | <=30°C, <10% RH, solder within 168 h / 7 days; after opening package |
| Recommended Workshop Condition | <=30°C, <60% RH; operation after opening package |
| Baking Condition | 60±5°C for 24 h; if desiccant fades or storage time exceeded |
| Datasheet Status | request_only |
Product Overview
XL-S4437PDC is a XINGLIGHT photodiode optical sensor listed in the LED category. The device uses a compact SMD package with outline dimensions of 4.4 x 3.7 x 0.55 mm, making it suitable for surface-mount assembly where a low-profile optical sensor is required.
Key Features
- 4.4 x 3.7 x 0.55 mm SMD package
- 400 to 1100 nm sensitivity wavelength range
- Typical 7.8 mm² radiant sensitive area
- 5 V maximum reverse voltage at Ta=25°C
- Light-current response specified at 525, 660, and 940 nm
- Typical 28 pF capacitance at VR=1 V
- MSL 3 moisture sensitivity classification
- Suitable for SMT automatic production
- Suitable for reflow soldering process
- RoHS compliant environmental protection product
Typical Applications
- Optical sensing circuits
- Visible and near-infrared detection
- 940 nm light detection
- 525 nm light detection
- 660 nm light detection
- Surface-mount sensor assemblies
- Reflow-assembled optical modules
Procurement Notes
When requesting a quote for XL-S4437PDC, 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.
Related Technical Articles
FAQ
What package is used for XL-S4437PDC?
XL-S4437PDC uses an SMD package with outline dimensions of 4.4 x 3.7 x 0.55 mm. The datasheet also states EIA standard packaging and suitability for SMT automatic production.
What wavelength range does XL-S4437PDC cover?
The specified sensitivity wavelength range is 400 to 1100 nm at Ta=25°C. Light-current values are also listed at 525 nm, 660 nm, and 940 nm under VCE=1 V and Ee=1 mW/cm².
What are the storage requirements after opening?
After opening the package, storage is specified at <=30°C and <10% RH, with soldering within 168 hours or 7 days. The recommended workshop condition is <=30°C and <60% RH.
How many reflow cycles are specified?
The datasheet specifies a maximum of 2 reflow soldering cycles. The recommended maximum reflow welding temperature is 240±5°C for 6 seconds.
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.