SMD5050-090 [LEIDITECH]

Surface Mount 2-Electrode gas Discharge Tube;


型号：	SMD5050-090
厂家：	Leiditech
描述：	Surface Mount 2-Electrode gas Discharge Tube
文件：	总4页 (文件大小：3483K)
中文：	中文翻译
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SMD5050-090 series

Surface Mount 2-Electrode gas Discharge Tube

Description

Gas discharge Tubes (GDT) are classical components for

protecting the installations of the telecommunications. It is

essential that IT and telecommunications systems -with their

high-grade but sensitive electronic circuits - be protected by

arresters. They are thus fitted at the input of the power supply

system together with varistors and at the connection points to

telecommunication lines. They have become equally indispensable

for protecting base stations in mobile telephone systems as well as

extensive cable television (CATV) networks with their repeaters

and distribution systems.

These protective components are also indispensable in other

sectors, In AC power transmission systems, they are often used

with current-limiting varistors, In customer premises equipment

such as DSL modems, WLAN routers, TV sets and cable modems

In air-conditioning equipment, the integral black-box concept offers

graduated protection by combining arresters with varistors, PTC,

diodes and inductor.

Schematic Symbol

Product Characteristics

Agency Approvals



Non-Radioactive

Materials

Dull Tin-plated

RoHS compliant

Product Marking

Without

Low insertion loss

Glow to Arc

Transition Current

Excellent response to fast rising transients

Ultra low capacitance

< 0.5 Amps

~60 Volts

Glow Voltage

5KA surge capability tested with 8/20 s

pulse as defined by IEC 61000-4-5

Storage and

Operational

Temperature

-40 to +90°C

Applications

Weight

~0.5g



Communication equipment

CATV equipment

Test equipment

Data lines

Power supplies

Telecom SLIC protection

Broadband equipment

ADSL equipment, including ADSL2+

XDSL equipment

Satellite and CATV equipment

Consumer electronics

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SMD5050-090 series

Device Dimensions

(Unit: mm)

Recommended pad outline

Electrical Characteristics

Service Life

Nominal

Impulse Alternating Impulse

Maximum

Impulse

Spark-over

Voltage

Spark-over

Voltage

Max

Nominal

Impulse

Discharge

Current

Maximum

Capacitance Voltage

Arc

Minimum

Insulation

Resistance

Discharge

Current

Life

Discharge

Current

Part Number

@50Hz

1 Sec

10 times

@8/20 s @8/20 s

@10/1000 s

300 times

@100V/S @100V/ s@1KV/ s

@1MHz

@1A

! 5 times

1 time

10KA

1 GΩ

(at 50V DC)

75V±20%

90V±20%

500V

600V

700V

800V

900V

650V

700V

800V

950V

1000V

1.0pF

~15V

~20V

5KA

100A

SMD5050-075

1 GΩ

(at 50V DC)

5KA

SMD5050-090

1 GΩ

(at 50V DC)

150V±20%

200V±20%

230V±20%

300V±20%

350V±20%

400V±20%

470V±20%

600V±20%

800V±20%

1000V±20%

5KA

10KA

SMD5050-150

SMD5050-200

SMD5050-230

1 GΩ

(at 100V DC)

1 GΩ

(at 100V DC)

1 GΩ

(at 100V DC)

SMD5050-300

SMD5050-350

SMD5050-400

1 GΩ

(at 100V DC)

1 GΩ

(at 100V DC)

1 GΩ

(at 100V DC)

SMD5050-470

SMD5050-600

SMD5050-800

SMD5050-1000

1 GΩ

(at 100V DC)

1100V

1200V

1400V

1.0pF

~20V

5KA

10KA

100A

1 GΩ

(at 100V DC)

1 GΩ

(at 100V DC)

1500V

1600V

1.0pF

~20V

5KA

10KA

100A

Notes:

1. Terms in accordance with ITU-T K.12 and GB/T 9043-2008

2. At delivery AQL 0.65 level , DIN ISO 2859

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Electrical Rating

Item

Test Condition / Description

Requirement

DC Spark-over Voltage

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

Impulse Spark-over

Voltage

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

dv / dt=100V// s or 1KV/ s

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

please see above spec.

Insulation Resistance

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

Capacitance

terminal.

Test frequency :1MHz

The maximum current applying a waveform of 8/20 s 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.

To meet

the specified

value

Nominal Impulse

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.

Nominal Alternating

Discharge Current

Recommended soldering profile

Reflow Condition

Pb - Free assembly

150°C

-Temperature Min (T_s(min)

)

-Temperature Max (T_s(max)

- Time (min to max) (t_s)

T_P

Pre Heat

)

200°C

Critical Zone

T_Lto T_P

Ramp-up

60 -180 Seconds

T_L

T_S(max)

Average ramp up rate ( Liquidus Temp T_L)

to peak

3°C/second max

Ramp-down

T_S(max)to TL - Ramp-up Rate

5°C/second max

217°C

T_S(min)

- Temperature (T_L) (Liquidus)

Reflow

Preheat

- Time (min to max) (t_s)

60 -150 Seconds

260 +0/-5°C

Peak Temperature (T_P)

Time to peak temperature

Time

(t 25 to peak)

Time within 5"C of actual peak

Temperature (t_p)

10 - 30 Seconds

Ramp-down Rate

6°C/second max

8 minutes Max

260°C

Time 25"C to peak Temperature (T_P)

Do not exceed

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SMD5050-090 series

Tape and Reel Dimensions

Unit: mm

Packaging

Part Number

Packaging Option

Quantity

SMD0505-XXX

Tape & Reel -12mm tape/13″Reel

1000

Cautions and warnings



Gas discharge tubes (GDT) must not be operated directly in power supply networks.

Gas discharge tubes (GDT) may become hot in case of longer periods of current stress (danger of burning).

Gas discharge tubes (GDT) may be used only within their specified values. In the event of overload, the head contacts may

fail or the component may be destroyed.



Damaged Gas discharge tubes (GDT) must not be re-used.

Shanghai Leiditech Electronic Co.,Ltd

Email: sale1@leiditech.com

Tel : +86- 021 50828806

Fax : +86- 021 50477059

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