Gas Discharge Tubes – SMD5050-400NA-B

Short Description:

Gas discharge tubes (GDT) use noble gasses enclosed in ceramic tubes to provide an alternate circuit path for voltage spikes. The ceramic envelope and with nickel connectors allow for high loads. SMD5050 Gas Discharge Tubes (GDT) series has a surge rating of 5kA, 8/20μs.Offered in a Squared Surface Mount package, which helps to make pick and place on PCB process easier.

This GDT series is perfectly suited for broadband equipment applications. The GDT’s low off-state capacitance is compatible with high bandwidth applications and this capacitance loading value does not vary if the voltage across the GDT changes.

SMD5050 Gas Discharge Tube (GDT) series are specifically designed for protection of electrical, multimedia, and communication equipment against over voltage transients in surface mount assembly applications.

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Product Detail

Product Tags

Electrical symbol

Features

Excellent response to fast rising transients

Stable breakdown voltage

GHz working frequency

8/20μs Impulse current capability:5KA

Surface Mount package

Non-Radioactive

Ultra Low capacitance (<0.8pF)

Lead-free and RoHS compliant

UL 497B Recognized: E465335Size: 4.2mm*5mm*5mm

Storage and operational temperature: -40~+90°C

Applications

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 General telecom equipment

Product Name

Electrical Characteristics

DC Spark-over Voltage ^{1) 2)}	at 100V/S		360~520	V
Impulse Spark-over Voltage	at 100V/μS		<600	V
Impulse Spark-over Voltage	at 1KV/μS		<650	V
Service life
Impulse Discharge Current	8/20μS	±5 times	5	KA
Impulse Discharge Current	8/20μS	1 time	6	KA
AC Discharge Current	50Hz,1S	5 times	5	A
Impulse Life	10/1000μS	±200 times	100	A
Insulation Resistance	at DC 100V		>1	GΩ
Capacitance	at 1MHz		<0.8	pF
Glow Voltage	at 10mA		~60	V
Arc Voltage	at 1A		~10	V
Glow to Arc transition current			~0.8	A
Weight			~0.42	g
Operation and storage temperature			-40~90	°C
Climatic category (IEC60068-1)			40/090/21
Marking			Without
Surface treatment			Matte-tin plated

1) At delivery AQL 0.65 level II, DIN ISO 2859

2) In ionized mode

Terms in accordance with ITU-T Rec. K.12, IEC 61643-311, GB/T 9043.

Dimensions

Symbol	Millimeters	Inches
A	5.0±0.2	0.197±0.008
B	5.0±0.2	0.197±0.008
C	4.2±0.3	0.165±0.012
D	0.5±0.1	0.020±0.004
X	1.2	0.047
X1	4.0	0.165
Y	5.5	0.217

Taping and Reel Specifications

Symbol	Millimeters	Inches
W	16±0.3	0.630±0.012
A0	5.3±0.1	0.209±0.004
B0	4.3±0.1	0.17±0.004
K0	5.2±0.1	0.205±0.004
P	12±0.1	0.472±0.004
F	7.5±0.1	0.295±0.004
E	1.75±0.1	0.069±0.004
D	1.5+0.1/-0.0	0.059+0.004/-0.0
P0	4±0.1	0.157±0.004
P2	2±0.1	0.079±0.004
T	0.4±0.1	0.016±0.004
D0	13.3±0.15	0.524±0.006
D1	330±2	12.992±0.079
D2	100+1/-2	3.937+0.039/-0.079
W1	16.5±0.4	0.65±0.016

Packaging Quantity:

1,000 PCS per reel (13”)

3 reels per inner box

3,000 PCS per inner box

Soldering Parameters - Reflow Soldering (Surface Mount Devices)

Reflow Condition		Pb - Free assembly
Pre Heat	-Temperature Min (T_s(min))	150°C
	-Temperature Max (T_s(max))	200°C
	- Time (min to max) (t_s)	60 -180 Seconds
Averageramp up rate ( LiquidsTemp T_L) to peak		3°C/second max
T_S(max) to TL - Ramp-up Rate		5°C/second max
Reflo w	- Temperature (T_L) (Liquids)	217°C
	- Time (min to max) (t_s)	60 -150 Seconds
Peak Temperature (T_P)		260 +0/-5°C
Time within 5°C of actual peak Temperature (t_p)		10 - 30 Seconds
Ramp-down Rate		6°C/second max
Time 25°C to peak Temperature (T_P)		8 minutes Max
Do not exceed		260°C