Specifications
| Type | Description |
|---|---|
| Part Number | LT670LBCT-BKS |
| Manufacturer | LG |
| Product Type | SMD LED |
| Category | LED |
| Package / Case | Surface mount PLCC top view, 3528 1.9T type |
| Dice Material | InGaN |
| Light Color | Blue |
| Lens Color | Water Clear |
| Power Dissipation | 60 mW, Ta=25°C |
| Peak Forward Current | 30 mA, 1/10 duty cycle, 0.1 ms pulse width, Ta=25°C |
| Continuous Forward Current | 20 mA, Ta=25°C |
| Reverse Voltage | 5 V, Ta=25°C |
| ESD Threshold | 2000 V, Human Body Model, Ta=25°C |
| Operating Temperature Range | -40 to +85 °C |
| Storage Temperature Range | -40 to +100 °C |
| Reflow Soldering Temperature | 260 °C for 5 seconds, one time maximum |
| Hand Soldering Temperature | 300 °C for 3 seconds, one time maximum |
| Luminous Flux | 1-2 lm, IF=20 mA, Ta=25°C |
| Viewing Angle | 120 deg typ, IF=20 mA, Ta=25°C |
| Dominant Wavelength | 465-475 nm, IF=20 mA, Ta=25°C |
| Forward Voltage | 2.8-3.4 V, IF=20 mA, Ta=25°C |
| Reverse Current | 10 uA max, VR=5 V, Ta=25°C |
| Luminous Flux Measurement Tolerance | ±15% |
| Dominant Wavelength Measurement Tolerance | ±1 nm |
| Forward Voltage Measurement Tolerance | ±0.05 V |
| Carrier Tape Loaded Quantity | 2000 pcs per reel |
| Package Dimension Tolerance | ±0.10 mm unless otherwise noted |
| Moisture Bag Storage Before Opening | 30°C or less, 90% RH or less |
| Floor Life After Opening | 168 hours at 30°C or less, 60% RH or less |
| Baking Treatment | 60±5°C for 24 hours if silica gel has faded or LEDs exceed storage time |
| Pb-free | Yes |
| RoHS Compliance | RoHS compliant version |
| Reflow Soldering Reliability Test | 260°C±5°C, minimum 5 seconds, 6 minutes; sample size 22 pcs, Ac/Re 0/1 |
| Temperature Cycle Reliability Test | +100°C 15 min to -40°C 15 min, 300 cycles; 5 min transition, sample size 22 pcs, Ac/Re 0/1 |
| DC Life Reliability Test | 1000 hours, IF=20 mA, sample size 22 pcs, Ac/Re 0/1 |
| Datasheet Status | request_only |
Product Overview
LT670LBCT-BKS is an LG blue surface mount LED built with InGaN dice material and a water-clear lens. The package is a PLCC top-view 3528 1.9T type, intended for surface mounting where a compact blue LED source is required.
At IF=20 mA and Ta=25°C, the device is specified for 1-2 lm luminous flux, 465-475 nm dominant wavelength, 2.8-3.4 V forward voltage, and a 120 deg typical viewing angle. Reverse current is rated at 10 uA maximum at VR=5 V and Ta=25°C.
Assembly and handling limits include 260°C for 5 seconds reflow soldering, 300°C for 3 seconds hand soldering, and 2000 V ESD threshold by Human Body Model. Tape-and-reel packaging is listed at 2000 pieces per reel, with moisture bag storage and floor-life controls defined for handling before assembly.
Key Features
- InGaN dice material for blue light emission
- Water-clear lens in top-view PLCC package
- 3528 1.9T surface mount package format
- 1-2 lm luminous flux at 20 mA
- 465-475 nm dominant wavelength at 20 mA
- 120 deg typical viewing angle at 20 mA
- 2.8-3.4 V forward voltage at 20 mA
- 20 mA continuous forward current rating
- 2000 V HBM ESD threshold
- Pb-free RoHS compliant version
Typical Applications
- Blue status indicators
- Panel indicator lighting
- Compact surface mount displays
- Backlighting for controls
- Signal and mode indication
- Electronics user interfaces
Procurement Notes
When requesting a quote for LT670LBCT-BKS, 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 LT670LBCT-BKS?
LT670LBCT-BKS is an LG blue surface mount LED. The datasheet identifies it as a top-view PLCC device in a 3528 1.9T package with InGaN dice material and a water-clear lens.
What optical output is specified at 20 mA?
At IF=20 mA and Ta=25°C, LT670LBCT-BKS is specified for 1-2 lm luminous flux, 465-475 nm dominant wavelength, and a 120 deg typical viewing angle.
What are the main electrical ratings?
The extracted ratings list 60 mW power dissipation, 20 mA continuous forward current, 30 mA peak forward current under pulsed conditions, 5 V reverse voltage, and 2.8-3.4 V forward voltage at IF=20 mA.
What soldering limits are listed for this LED?
The datasheet facts specify reflow soldering at 260°C for 5 seconds as a one-time maximum, and hand soldering at 300°C for 3 seconds as a one-time 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.