Specifications
| Type | Description |
|---|---|
| Part Number | 17-21_S2C-AP1Q2B_3T |
| Manufacturer | EVERLIGHT |
| Product Type | Blue SMD LED |
| Category | LED |
| Package / Case | SMD B package; package dimensions shown in drawing, unit mm, tolerance ±0.1 mm unless otherwise specified |
| Chip Material | InGaN; condition: blue emitted color device |
| Emitted Color | Blue; condition: device selection guide |
| Resin Color | Water Clear; condition: device selection guide |
| Reverse Voltage | 5 V; condition: Ta=25°C absolute maximum rating |
| Forward Current | 20 mA; condition: Ta=25°C absolute maximum rating |
| Peak Forward Current | 40 mA; condition: duty 1/10 @ 1 kHz, Ta=25°C absolute maximum rating |
| Power Dissipation | 75 mW; condition: Ta=25°C absolute maximum rating |
| Electrostatic Discharge | 150 V; condition: HBM, Ta=25°C absolute maximum rating |
| Operating Temperature | -40 to +85 °C; condition: absolute maximum rating |
| Storage Temperature | -40 to +90 °C; condition: absolute maximum rating |
| Reflow Soldering Temperature | 260 °C for 10 sec; condition: absolute maximum soldering temperature |
| Hand Soldering Temperature | 350 °C for 3 sec; condition: absolute maximum soldering temperature |
| Luminous Intensity | 45.0 min, 112.0 max mcd; condition: IF=20 mA, Ta=25°C |
| Viewing Angle | 140° typ; condition: 2θ1/2, IF=20 mA, Ta=25°C |
| Peak Wavelength | 468 nm typ; condition: IF=20 mA, Ta=25°C |
| Dominant Wavelength | 464.5 min, 476.5 max nm; condition: IF=20 mA, Ta=25°C |
| Spectrum Radiation Bandwidth | 25 nm typ; condition: IF=20 mA, Ta=25°C |
| Forward Voltage | 2.7 min, 3.3 typ, 3.7 max V; condition: IF=20 mA, Ta=25°C |
| Reverse Current | 50 µA max; condition: VR=5 V, Ta=25°C |
| Luminous Intensity Tolerance | ±11%; condition: electro-optical characteristics and binning |
| Dominant Wavelength Tolerance | ±1 nm; condition: electro-optical characteristics and binning |
| Forward Voltage Tolerance | ±0.1 V; condition: electro-optical characteristics |
| Reverse Operation Note | Device is not designed for reverse operation; condition: VR condition applies to IR test only |
| Luminous Intensity Bin P1 | 45.0 to 57.0 mcd; condition: IF=20 mA |
| Luminous Intensity Bin P2 | 57.0 to 72.0 mcd; condition: IF=20 mA |
| Luminous Intensity Bin Q1 | 72.0 to 90.0 mcd; condition: IF=20 mA |
| Luminous Intensity Bin Q2 | 90.0 to 112.0 mcd; condition: IF=20 mA |
| Dominant Wavelength Bin A9 | 464.5 to 467.5 nm; condition: IF=20 mA |
| Dominant Wavelength Bin A10 | 467.5 to 470.5 nm; condition: IF=20 mA |
| Dominant Wavelength Bin A11 | 470.5 to 473.5 nm; condition: IF=20 mA |
| Dominant Wavelength Bin A12 | 473.5 to 476.5 nm; condition: IF=20 mA |
| Packing Format | 8 mm tape on 7 inch diameter reel; condition: feature list |
| Loaded Quantity | 3000 pcs per reel; condition: carrier tape dimensions section |
| Moisture Storage After Opening | 30°C or less and 60% RH or less; condition: after opening package |
| Floor Life After Opening | 168 hours / 7 days; condition: after opening package |
| Baking Treatment | 60±5°C for 24 hours; condition: if silica gel faded or storage time exceeded |
| Reflow Limit | No more than two times; condition: reflow soldering condition |
| Soldering Iron Capacity | 25 W max; condition: hand soldering, each terminal, 350°C max for 3 seconds within once |
| Datasheet Status | request_only |
Product Overview
EVERLIGHT 17-21_S2C-AP1Q2B_3T is a blue SMD LED built with InGaN chip material and water clear resin. The datasheet identifies it as an SMD B package device, with package dimensions defined in millimeters and a general tolerance of ±0.1 mm unless otherwise specified.
At IF=20 mA and Ta=25°C, the LED provides 45.0 to 112.0 mcd luminous intensity, 468 nm typical peak wavelength, 464.5 to 476.5 nm dominant wavelength, and 25 nm typical spectrum radiation bandwidth. The viewing angle is 140° typical, supporting wide-angle blue indication and display use.
Electrical and assembly limits include 20 mA forward current, 40 mA peak forward current at duty 1/10 and 1 kHz, 75 mW power dissipation, and 150 V HBM electrostatic discharge rating. Reflow soldering is limited to 260 °C for 10 seconds and no more than two times. Hand soldering is limited to 350 °C for 3 seconds using a 25 W maximum soldering iron.
Key Features
- Blue emitted color with InGaN chip material
- Water clear resin SMD B package LED
- 45.0 to 112.0 mcd at IF=20 mA
- 140° typical viewing angle at IF=20 mA
- 468 nm typical peak wavelength at IF=20 mA
- 464.5 to 476.5 nm dominant wavelength range
- 2.7 to 3.7 V forward voltage range
- 20 mA forward current absolute maximum rating
- -40 to +85 °C operating temperature range
- 8 mm tape on 7 inch reel packing
- 3000 pieces loaded per reel
- Reflow soldering limited to two cycles
Typical Applications
- Blue status indicators
- Panel indication points
- Compact SMD display indicators
- Wide-angle signal indicators
- Blue wavelength sorting assemblies
- Tape-and-reel automated assembly
- Moisture-controlled LED production builds
Procurement Notes
When requesting a quote for 17-21_S2C-AP1Q2B_3T, 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 LED is 17-21_S2C-AP1Q2B_3T?
17-21_S2C-AP1Q2B_3T is an EVERLIGHT blue SMD LED. The device uses InGaN chip material, has water clear resin, and is specified in an SMD B package.
What are the main optical specifications at 20 mA?
At IF=20 mA and Ta=25°C, the LED is specified for 45.0 to 112.0 mcd luminous intensity, 140° typical viewing angle, 468 nm typical peak wavelength, and 464.5 to 476.5 nm dominant wavelength.
Can this device be used for reverse operation?
No. The datasheet note states that the device is not designed for reverse operation. The 5 V reverse-voltage condition applies to the reverse-current test only.
What soldering limits apply to this SMD LED?
The reflow soldering temperature limit is 260 °C for 10 seconds, with no more than two reflow cycles. Hand soldering is limited to 350 °C for 3 seconds using a 25 W maximum soldering iron.
How should opened packages be stored before assembly?
After opening, the package storage condition is 30°C or less and 60% RH or less. The floor life is 168 hours, or 7 days; baking is specified at 60±5°C for 24 hours if required.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 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.