Specifications
| Type | Description |
|---|---|
| Part Number | XL-257UYC-L |
| Manufacturer | XINGLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | Through-hole LED, 5.0 x 2.0 x 7.0 x 28 mm |
| Appearance Dimensions | 5.0 x 2.0 x 7.0 x 28 mm; physical package dimensions |
| Luminous Color | Yellow; white/water colloid body |
| Colloid Color | White / water colloid; product appearance description |
| Moisture Sensitivity Level | MSL 2; moisture sensitivity rating |
| RoHS Compliance | Meets RoHS requirements; environmental compliance statement |
| Power Dissipation | 70 mW; Ta=25°C absolute maximum rating |
| Maximum Continuous Forward Current | 20 mA; Ta=25°C absolute maximum rating |
| Peak Forward Current | 80 mA; Ta=25°C absolute maximum rating |
| Operating Ambient Temperature | -20°C to +85°C; absolute maximum rating |
| Storage Temperature | -40°C to +85°C; absolute maximum rating |
| Wave Soldering Condition | 240°C, ≤6 s; solder point at least 2.0 mm from colloid bottom |
| Manual Soldering Condition | 300°C, 3 s; solder point at least 2.0 mm from colloid bottom |
| Luminous Intensity | 50 min, 200 typ, 300 max mcd; IF=20mA, Ta=25°C |
| Dominant Wavelength | 585 min, 595 max nm; IF=20mA, Ta=25°C |
| Peak Wavelength | 590 typ nm; IF=20mA, Ta=25°C |
| Forward Voltage | 1.8 min, 2.2 typ, 2.4 max V; IF=20mA, Ta=25°C |
| Viewing Angle | 110 typ deg; IF=20mA, Ta=25°C, 2θ1/2 |
| Spectral Width at Half Height | 20 typ nm; IF=20mA, Ta=25°C |
| Reverse Current | ≤10 µA; VR=5V, Ta=25°C |
| Brightness Grade A1 | 50 to 100 mcd; IF=20mA |
| Brightness Grade A2 | 100 to 200 mcd; IF=20mA |
| Brightness Grade A3 | 200 to 300 mcd; IF=20mA |
| Voltage Grade N12-7 | 1.8 to 2.0 V; IF=20mA |
| Voltage Grade N12-8 | 2.0 to 2.2 V; IF=20mA |
| Voltage Grade N12-9 | 2.2 to 2.4 V; IF=20mA |
| Wavelength Grade HY03 | 585 to 587.5 nm; IF=20mA |
| Wavelength Grade HY04 | 587.5 to 590 nm; IF=20mA |
| Wavelength Grade HY05 | 590 to 592.5 nm; IF=20mA |
| Wavelength Grade HY06 | 592.5 to 595 nm; IF=20mA |
| Dimension Tolerance | ±0.50 mm; unless otherwise specified |
| Packaging | In bags; moisture-proof and anti-electrostatic foil bag |
| Datasheet Status | request_only |
Product Overview
XL-257UYC-L from XINGLIGHT is a yellow through-hole LED with a 5.0 x 2.0 x 7.0 x 28 mm appearance dimension and a white / water colloid body. The package is intended for through-hole assembly, with dimensional tolerance specified as ±0.50 mm unless otherwise noted.
At IF=20 mA and Ta=25°C, the device is specified for 50 mcd minimum, 200 mcd typical, and 300 mcd maximum luminous intensity. Optical data includes a 585 to 595 nm dominant wavelength range, 590 nm typical peak wavelength, 20 nm typical spectral width at half height, and 110° typical viewing angle.
Electrical and thermal limits include 70 mW power dissipation, 20 mA maximum continuous forward current, 80 mA peak forward current, and reverse current of ≤10 µA at VR=5 V. Assembly guidance specifies wave soldering at 240°C for ≤6 s and manual soldering at 300°C for 3 s, with the solder point at least 2.0 mm from the colloid bottom.
Key Features
- Yellow luminous output in through-hole LED format
- 5.0 x 2.0 x 7.0 x 28 mm package dimensions
- 50 to 300 mcd luminous intensity at 20 mA
- 585 to 595 nm dominant wavelength range
- 1.8 to 2.4 V forward voltage at 20 mA
- 110° typical viewing angle at 20 mA
- 20 mA maximum continuous forward current
- 80 mA peak forward current rating
- MSL 2 moisture sensitivity rating
- RoHS requirements met per datasheet
Typical Applications
- Yellow status indicators
- Through-hole indicator panels
- Signal lamps using yellow LEDs
- PCB-mounted visual indication
- Equipment front-panel indicators
- Color-coded alert indicators
Procurement Notes
When requesting a quote for XL-257UYC-L, 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 color output does XL-257UYC-L provide?
XL-257UYC-L is specified as a yellow through-hole LED. The datasheet lists a dominant wavelength range of 585 to 595 nm and a typical peak wavelength of 590 nm at IF=20 mA and Ta=25°C.
What are the main electrical ratings for XL-257UYC-L?
The device is rated for 70 mW power dissipation, 20 mA maximum continuous forward current, and 80 mA peak forward current at Ta=25°C. Forward voltage is specified as 1.8 V minimum, 2.2 V typical, and 2.4 V maximum at IF=20 mA.
What soldering conditions are specified for this LED?
For wave soldering, the datasheet specifies 240°C for no more than 6 seconds. For manual soldering, it specifies 300°C for 3 seconds. In both cases, the solder point must be at least 2.0 mm from the colloid bottom.
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.