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Part No. : LTLA2V3EX3K

BNS-OD-FC002/A4

Through Hole Lamp

LTLA2V3EX3K

8.6. Drive Method

An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in parallel in an

application, it is recommended that a current limiting resistor be incorporated in the drive circuit, in series with each LED as

shown in Circuit A below.

Circuit model (A)

Circuit model (B)

LED

LED

(A) Recommended circuit

(B) The brightness of each LED might appear different due to the differences in the I-V characteristics of those LEDs.

8.7. ESD (Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD damage:

 Use a conductive wrist band or anti- electrostatic glove when handling these LEDs

 All devices, equipment, and machinery must be properly grounded

 Work tables, storage racks, etc. should be properly grounded

 Use ion blower to neutralize the static charge which might have built up on surface of the LEDs plastic

lens as a result of friction between LEDs during storage and handing

Suggested checking list:

Training and Certification

8.7.1.1. Everyone working in a static-safe area is ESD-certified?

8.7.1.2. Training records kept and re-certification dates monitored?

Static-Safe Workstation & Work Areas

8.7.2.1. Static-safe workstation or work-areas have ESD signs?

8.7.2.2. All surfaces and objects at all static-safe workstation and within 1 ft measure less than 100V?

8.7.2.3. All ionizer activated, positioned towards the units?

8.7.2.4. Each work surface mats grounding is good?

Personnel Grounding

8.7.3.1. Every person (including visitors) handling ESD sensitive (ESDS) items wear wrist strap, heel strap or conductive shoes

with conductive flooring?

8.7.3.1. If conductive footwear used, conductive flooring also present where operator stand or walk?

8.7.3.2. Garments, hairs or anything closer than 1 ft to ESD items measure less than 100V*?

8.7.3.3. Every wrist strap or heel strap/conductive shoes checked daily and result recorded for all DLs?

8.7.3.4. All wrist strap or heel strap checkers calibration up to date?

Note: *50V for Blue LED.

Device Handling

8.7.4.1. Every ESDS items identified by EIA-471 labels on item or packaging?

8.7.4.2. All ESDS items completely inside properly closed static-shielding containers when not at static-safe workstation?

8.7.4.3. No static charge generators (e.g. plastics) inside shielding containers with ESDS items?

8.7.4.4. All flexible conductive and dissipative package materials inspected before reuse or recycle?