Specifications
| Type | Description |
|---|---|
| Part Number | LT670WDT |
| Manufacturer | LG |
| Product Type | SMD LED |
| Category | LED |
| Manufacturer shown in datasheet | PARA LIGHT ELECTRONICS CO., LTD. |
| Datasheet Part Number | L-T670WDT |
| Revision | B / 1 |
| Datasheet Date | 2015-01-06 |
| Device Type | Surface mount device LED |
| Light Color | White |
| Dice Material | InGaN |
| Lens Color | Light yellow diffused |
| Package Standard | EIA standard package, 8 mm tape on 7 inch reels |
| Package Width | 3.50 mm |
| Package Length | 2.80 mm |
| Package Height | 1.90 mm |
| Dimension Tolerance | +/-0.10 mm |
| Power Dissipation | 100 mW |
| Peak Forward Current | 100 mA |
| Continuous Forward Current | 25 mA |
| Reverse Voltage | 5 V |
| ESD Threshold | 1000 V |
| Operating Temperature Range | -40 to +85 °C |
| Storage Temperature Range | -40 to +85 °C |
| Luminous Intensity | 1550 mcd min, 2000 mcd typ |
| Viewing Angle | 120 deg |
| CIE Chromaticity x | 0.31 typ |
| CIE Chromaticity y | 0.32 typ |
| Forward Voltage | 2.8 V min, 3.20 V typ, 3.50 V max |
| Reverse Current | 10 µA max |
| Luminous Intensity Main Bin P24 | 1550 to 1900 mcd |
| Luminous Intensity Main Bin P25 | 1900 to 2350 mcd |
| Luminous Intensity Main Bin P26 | 2350 to 2600 mcd |
| Forward Voltage Bin 13 | 2.8 to 2.9 V |
| Forward Voltage Bin 14 | 2.9 to 3.0 V |
| Forward Voltage Bin 15 | 3.00 to 3.10 V |
| Forward Voltage Bin 16 | 3.10 to 3.20 V |
| Forward Voltage Bin 17 | 3.20 to 3.30 V |
| Forward Voltage Bin 18 | 3.30 to 3.40 V |
| Color Coordinate Measurement Tolerance | +/-0.01 |
| Packing Quantity | 2000 pcs per reel/bag |
| Suggested Solder Pad Dimensions | 2.2 mm, 1.8 mm, 1.6 mm |
| Cleaning Solvent | Isopropyl alcohol |
| Sn/Pb Reflow Preheat | 120 to 150 °C, 120 s max |
| Sn/Pb Reflow Peak Temperature | 240 °C max |
| Soldering Iron Temperature | 350 °C max |
| Lead-Free Reflow Preheat | 150 to 180 °C, 120 s max |
| Lead-Free Reflow Soldering Temperature | Over 240 °C, 40 s max |
| Lead-Free Reflow Peak Temperature | 260 °C, 10 s |
| Lead-Free Reflow Repetition | 2 times max |
| Lead-Free Solder Paste Formula | 93.3 Sn / 3.1 Ag / 3.1 Bi / 0.5 Cu |
| Reliability Forward Voltage Criterion | Max U.S.L. x 1.1 |
| Reliability Reverse Current Criterion | Max U.S.L. x 2.0 |
| Reliability Luminous Intensity Criterion | Min L.S.L. x 0.7 |
| Resistance to Soldering Heat Test | 0/50 damaged |
| Thermal Shock Test | 0/50 damaged |
| Temperature Cycle Test | 0/50 damaged |
| High Temperature Storage Test | 0/50 damaged |
| Temperature Humidity Storage Test | 0/50 damaged |
| Low Temperature Storage Test | 0/50 damaged |
| Steady State Operating Life Test | 0/50 damaged |
| High Humidity Operating Life Test | 0/50 damaged |
| Low Temperature Operating Life Test | 0/50 damaged |
| Datasheet Status | request_only |
Product Overview
LT670WDT is an LED entry for a white PLCC SMD LED. The source datasheet identifies the related part number as L-T670WDT from PARA LIGHT ELECTRONICS CO., LTD., revision B / 1, dated 2015-01-06. The device is described as a top-view PLCC-2 surface mount LED with InGaN dice and a light yellow diffused lens.
The package outline is 3.50 mm wide, 2.80 mm long, and 1.90 mm high, with dimensions specified to +/-0.10 mm unless otherwise noted. It uses an EIA standard 8 mm tape format on 7 inch reels, with 2000 pieces per reel or bag.
At 25 degC, ratings include 100 mW power dissipation, 25 mA continuous forward current, 100 mA peak forward current under pulsed conditions, 5 V reverse voltage, and -40 to +85 degC operating and storage ranges. Optical and electrical data at 20 mA include 1550 mcd minimum and 2000 mcd typical luminous intensity, 120 degree viewing angle, CIE x 0.31 and y 0.32 typical chromaticity, and 2.8 to 3.50 V forward voltage.
Key Features
- White InGaN LED with light yellow diffused lens
- PLCC-2 top-view SMD package format
- 3.50 x 2.80 x 1.90 mm nominal body
- 1550 mcd minimum luminous intensity at 20 mA
- 120 degree viewing angle at Ta=25°C
- 2.8 to 3.50 V forward voltage range
- 25 mA continuous forward current rating
- 5 V reverse voltage absolute maximum rating
- EIA 8 mm tape on 7 inch reels
- Lead-free reflow peak specified at 260°C for 10 s
Typical Applications
- White status indicators
- Surface mount indicator lighting
- PCB-mounted visual signaling
- Compact panel illumination
- Backlighting and light guides
- Consumer electronics indicators
- Industrial control indicators
Procurement Notes
When requesting a quote for LT670WDT, 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 package is specified for LT670WDT?
The extracted datasheet facts describe L-T670WDT as a top-view PLCC-2 surface mount LED package with nominal dimensions of 3.50 mm width, 2.80 mm length, and 1.90 mm height.
What are the main optical ratings at 20 mA?
At IF=20 mA and Ta=25°C, the LED has luminous intensity of 1550 mcd minimum and 2000 mcd typical, a 120 degree viewing angle, and typical CIE chromaticity coordinates of x=0.31 and y=0.32.
What soldering limits are listed for lead-free reflow?
The lead-free reflow profile lists 150 to 180°C preheat for 120 seconds maximum, over 240°C soldering temperature for 40 seconds maximum, 260°C peak temperature for 10 seconds, and two reflow repetitions maximum.
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.