SC2E5-150LSMD datasheet(3/4 Pages) SOCAY

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Surface Mount 2-Electrode Gas Discharge Tube (GDT)

Revision January 4, 2019

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@SOCAY Electronics Corp., Ltd. 2019

Specifications are subject to change without notice.

Please refer to www.socay.com for current information.

SC2E5-SMD Series

SOCAY Electronics Corp., Ltd.

www.socay.com

Item

Test Condition / Description

Requirement

DC Spark-over Voltage

The voltage is measured with a slowly rate of rise dv / dt=100V/s

To meet

the specified

value

Impulse Spark-over

Voltage

The maximum impulse spark-over voltage is measured with a rise time of

dv / dt=100V//μs or 1KV/μs

Insulation Resistance

The resistance of gas tube shall be measured each terminal each other terminal,

please see above spec.

Capacitance

The capacitance of gas tube shall be measured each terminal to each other

terminal.

Test frequency :1MHz

Nominal Impulse

Discharge Current

The maximum current applying a waveform of 8/20μs that can be applied across

the terminals of the gas tube. One hour after the test is completed, re-testing of the

DC spark-over voltage does not exceed ±30% of the nominal DC spark-over

voltage. Dwell time between pulses is 3 minutes.

Nominal Alternating

Discharge Current

Rated RMS value of AC current at 50Hz, 1 sec. 10 times. Intervals: 3min. The DC

spark-over voltage does not exceed ±30% of the nominal DC spark-over voltage.

IR > 108ohms.

Reflow Condition

Pb - Free assembly

Pre Heat

-Temperature Min (Ts(min))

150°C

-Temperature Max (Ts(max))

200°C

- Time (min to max) (ts)

60 -180 Seconds

Average ramp up rate ( Liquidus Temp TL)

to peak

3°C/second max

TS(max) to TL - Ramp-up Rate

5°C/second max

Reflow

- Temperature (TL) (Liquidus)

217°C

- Time (min to max) (ts)

60 -150 Seconds

Peak Temperature (TP)

260 +0/-5°C

Time

within

5°C

actual

peak

Temperature (tp)

10 - 30 Seconds

Ramp-down Rate

6°C/second max

Time 25°C to peak Temperature (TP)

8 minutes Max

Do not exceed

260°C

Electrical Rating

Recommended Soldering Profile

Ramp-down

Preheat

Critical Zone

TL to TP

Time to peak temperature

(t 25℃ to peak)

TS(max)

TS(min)

Ramp-up

Time

1.0

0.9

0.5

0.1

0.0

20μsec

30% Max T

8μsec

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