Specifications
| Type | Description |
|---|---|
| Part Number | XL-257SURD-L |
| Manufacturer | XINGLIGHT |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | 5.0 x 2.0 x 7.0 x 28 mm long-lead through-hole LED |
| Appearance Dimension | 5.0 x 2.0 x 7.0 x 28 mm; Product characteristic |
| Luminous Color | Red; Product characteristic |
| Colloid Color | Red colloid; Product characteristic |
| RoHS Compliance | Meets ROHS requirements; Environmental protection product statement |
| Moisture Sensitivity Level | MSL 2; Product characteristic |
| 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 Ambient Temperature | -40°C to +85°C; Absolute maximum rating |
| Wave Soldering Temperature | 240°C for ≤6 s; solder point more than 2.0 mm from colloid bottom |
| Manual Welding Temperature | 300°C for 3 s; solder point more than 2.0 mm from colloid bottom |
| Luminous Intensity | 50 min, 200 typ, 300 max mcd; IF=20mA, Ta=25°C |
| Dominant Wavelength | 615 min, 620 typ, 625 max nm; IF=20mA, Ta=25°C |
| Peak Wavelength | 625 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 max; VR=5V, Ta=25°C |
| Luminous Intensity Tolerance | ±10%; Measurement note |
| Forward Voltage Tolerance | ±0.1 V; Measurement note |
| Chromaticity Coordinate Tolerance | ±0.01; Measurement note for X,Y coordinates |
| Wavelength Tolerance | ±1 nm; Measurement note for monochromatic wavelength |
| 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 HR02 | 620 to 625 nm; IF=20mA |
| Wavelength Grade HR03 | 625 to 630 nm; IF=20mA |
| Working Life Test | 1000 hrs, 22 pcs, fail quantity 0/1; Ta=25°C±5°C, IF=20mA |
| High Temperature High Humidity Test | 1000 hrs, 22 pcs, fail quantity 0/1; Ta=85°C±5°C, RH=85% to 90% |
| High Temperature Storage Test | 1000 hrs, 22 pcs, fail quantity 0/1; Ta=85°C±5°C |
| Low Temperature Storage Test | 1000 hrs, 22 pcs, fail quantity 0/1; Ta=-40°C±5°C |
| Cold and Hot Cycle Test | 100 cycles, 22 pcs, fail quantity 0/1; 100°C±5°C for 30 min to -40°C±5°C for 30 min, 5 min transition |
| Hot and Cold Impact Test | 100 cycles, 22 pcs, fail quantity 0/1; 105°C±5°C to -45°C±5°C, 5 min each |
| Resistance to Soldering Heat Test | 2 times, 22 pcs, fail quantity 0/1; Tsol=250°C±5°C |
| Lead Integrity Bend Test | 3 times, 22 pcs, fail quantity 0/1; Load 2.5 N (0.25 kgf), 0° to 90° to 0° |
| Outline Dimension Tolerance | ±0.50 mm unless otherwise specified; Dimensions in millimeters |
| Packaging | In bags; moisture-proof and anti-electrostatic foil bag |
| Storage Recommendation | Temperature ≤30°C, relative humidity ≤70%, use within 3 months in original box |
| Cleaning Recommendation | Ethanol wipe or soak for no more than 3 minutes at room temperature |
| Lead Bending Distance | At least 2 mm from colloid before bending bracket |
| ESD Human Body Model Limit | HBM <1000 V |
| ESD Machine Model Limit | Machine discharge mode <100 V |
| Datasheet Status | request_only |
Product Overview
XL-257SURD-L is a XINGLIGHT red through-hole LED with a 5.0 x 2.0 x 7.0 x 28 mm long-lead outline and red colloid. The datasheet identifies the device as RoHS compliant with MSL 2 moisture sensitivity, and dimensions are specified in millimeters with ±0.50 mm outline tolerance unless otherwise stated.
At IF=20 mA and Ta=25°C, optical and electrical characteristics include 50 mcd minimum, 200 mcd typical, and 300 mcd maximum luminous intensity; 615 to 625 nm dominant wavelength; 625 nm typical peak wavelength; 20 nm typical spectral half-width; and 1.8 to 2.4 V forward voltage. The typical viewing angle is 110 degrees, measured as 2θ1/2, with reverse current limited to ≤10 µA at VR=5 V.
Assembly guidance includes wave soldering at 240°C for ≤6 s and manual welding at 300°C for 3 s, with the solder point more than 2.0 mm from the colloid bottom. Storage guidance calls for ≤30°C and ≤70% relative humidity, with use within 3 months in the original box.
Key Features
- Red through-hole LED with red colloid body
- 5.0 x 2.0 x 7.0 x 28 mm long-lead outline
- 50 to 300 mcd luminous intensity at IF=20mA
- 615 to 625 nm dominant wavelength at IF=20mA
- 1.8 to 2.4 V forward voltage at IF=20mA
- 110 degree typical viewing angle at IF=20mA
- 20 mA maximum continuous forward current at Ta=25°C
- 70 mW power dissipation at Ta=25°C
- RoHS compliant product statement and MSL 2 rating
- Moisture-proof anti-electrostatic foil bag packaging
Typical Applications
- Red through-hole status indication
- PCB-mounted visual indicators
- Long-lead panel indication
- Red signal display points
- 20 mA indicator circuits
- Wide-angle red indication
Procurement Notes
When requesting a quote for XL-257SURD-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 package style does XL-257SURD-L use?
XL-257SURD-L uses a long-lead through-hole LED outline with an appearance dimension of 5.0 x 2.0 x 7.0 x 28 mm. The datasheet gives an outline dimension tolerance of ±0.50 mm unless otherwise specified.
What are the main optical ratings at 20 mA?
At IF=20 mA and Ta=25°C, the LED is specified for 50 mcd minimum, 200 mcd typical, and 300 mcd maximum luminous intensity. Dominant wavelength is 615 to 625 nm, with 625 nm typical peak wavelength.
What soldering limits are specified for this LED?
Wave soldering is specified at 240°C for ≤6 seconds, and manual welding is specified at 300°C for 3 seconds. In both cases, the solder point should be more than 2.0 mm from the colloid bottom.
What storage and handling precautions are listed?
The datasheet recommends storage at temperature ≤30°C and relative humidity ≤70%, with use within 3 months in the original box. It also lists HBM <1000 V and machine discharge mode <100 V ESD limits.
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.