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P r o p e r t y o f L i t e - O n O n l y

Part

No. : LTST-C155GYKT

Page :

10

of

10

BNS-OD-C131/A4

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low forward

voltage, or “ no lightup ” at low currents.

To verify for ESD damage, check for “ lightup ” and Vf of the suspect LEDs at low currents.

The Vf of “ good ” LEDs should be >2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP product.

7. Reliability Test

Classification

Test Item

Test Condition

Reference Standard

Operation Life

Ta= Under Room Temperature As Per Data Sheet

Maximum Rating

*Test Time= 1000HRS (-24HRS,+72HRS)*@20mA.

MIL-STD-750D:1026 (1995)

MIL-STD-883D:1005 (1991)

JIS C 7021:B-1 (1982)

High Temperature

High Humidity

Storage

IR-Reflow In-Board, 2 Times

Ta= 65±5℃,RH= 90～95%

*Test Time= 240HRS±2HRS

MIL-STD-202F:103B(1980)

JIS C 7021:B-11(1982)

High Temperature

Storage

Ta= 105±5℃

*Test Time= 1000HRS (-24HRS,+72HRS)

MIL-STD-883D:1008 (1991)

JIS C 7021:B-10 (1982)

Endurance

Test

Low Temperature

Storage

Ta= -55±5℃

*Test Time=1000HRS (-24HRS,+72H RS)

JIS C 7021:B-12 (1982)

Temperature

Cycling

105℃ ～ 25℃ ～ -55℃ ～ 25℃

30mins

5mins

30mins

5mins

10 Cycles

MIL-STD-202F:107D (1980)

MIL-STD-750D:1051(1995)

MIL-STD-883D:1010 (1991)

JIS C 7021:A-4(1982)

Thermal

Shock

IR-Reflow In-Board, 2 Times

85 ± 5℃ ～ -40℃ ± 5℃

10mins

10mins

10 Cycles

MIL-STD-202F:107D(1980)

MIL-STD-750D:1051(1995)

MIL-STD-883D:1011 (1991)

Solder

Resistance

T.sol= 260 ± 5℃

Dwell Time= 10 ± 1secs

MIL-STD-202F:210A(1980)

MIL-STD-750D:2031(1995)

JIS C 7021:A-1(1982)

IR-Reflow

Normal Process

Ramp-up rate(183℃ to Peak) +3℃/ second max

Temp. maintain at 125(±25)℃ 120 seconds max

Temp. maintain above 183℃ 60-150 seconds

Peak temperature range 235℃+5/-0℃

Time within 5°C of actual Peak Temperature (tp)

10-30 seconds

Ramp-down rate +6℃/second max

MIL-STD-750D:2031.2(1995)

J-STD-020(1999)

IR-Reflow

Pb Free Process

Ramp-up rate(217

to Peak) +3

/ second max

℃

℃

Temp. maintain at 175(±25)

180 seconds max

℃

Temp. maintain above 217

60

℃

-150 seconds

Peak temperature range 260

+0/

℃

-5℃

Time within 5°C of actual Peak Temperature (tp)

20-40 seconds

Ramp-down rate +6

/second max

℃

MIL-STD-750D:2031.2(1995)

J-STD-020(1999)

Environmental

Test

Solderability

T.sol= 235 ± 5℃

Immersion time 2±0.5 sec

Immersion rate 25±2.5 mm/sec

Coverage ≧95% of the dipped surface

MIL-STD-202F:208D(1980)

MIL-STD-750D:2026(1995)

MIL-STD-883D:2003(1991)

IEC 68 Part 2-20

JIS C 7021:A-2(1982)

8. Others

The appearance and specifications of the product may be modified for improvement without prior notice.