3R-3 Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

3R-3S Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

Description of 3R-3S Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

Gas discharge tubes (GDT) use noble gasses enclosed in ceramic tubes to provide an alternate circuit path for voltagespikes. The ceramic envelope and with nickel connectors allow for high loads. 3R-3S Gas Discharge Tubes (GDT) series has a surge rating of 2kA, 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.

3R-3S 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.

Features of 3R-3S Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

• Extremely small size
• Excellent response to fast rising transients
• Stable breakdown voltage
• GHz working frequency
• 8/20μs Impulse current capability: 2KA
• Surface Mount package
• Non-Radioactive
• Ultra Low capacitance (<1pF)
• High insulation resistance
• Lead-free compliant
• RoHS and REACH compliant
• Size: 3.5mm*3.5mm*6.8mm
• Storage and operational temperature: -40~+90°C

Applications of 3R-3S Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

• Communication equipment
• CATV equipment
• Data lines
• Telecom SLIC protection
• Broadband equipment
• ADSL equipment, including ADSL2+
• XDSL equipment
• Satellite and CATV equipment
• Test equipment
• Consumer electronics
• ESD protection

Electrical Characteristics of 3R-3S Ceramics Surge Protection 3 Electrode Gas Discharge Tubes GDT For High Bandwidth Applications

Part Number								DC Spark-over Voltage 1) 2) 3) @100V/S							Impulse Spark-over Voltage 3)							Insulation Resistance 3) 4)		Capacitance @1MHz 3)				Glow Voltage @10mA 3)	Arc Voltage @1A 3)	Life Ratings
																														Impulse Discharge Current @8/20μs 5)			Impulse Discharge Current @8/20μs 6)	Impulse Withstanding Voltage Capacity @10/700μS, 40 ±5 times 7)
															100V/μS			1KV/μS
															Max			Max				Min		Max				Type	Type	Nominal ±5 times	Max 1 time		Nominal 300 times
								V							V			V				GΩ		pF				V	V	KA	KA		A	KV
3R090F-3S								90±30%							500			600					1	1			60		10	2	3		100		6
3R150F-3S								150±30%							500			600					1	1			60		10	2	3		100		6
3R200F-3S								200±30%							600			700					1	1			60		10	2	3		100		6
3R230F-3S								230±30%							600			700					1	1			60		10	2	3		100		6
3R350F-3S								350±30%							800			900					1	1			60		15	2	3		100		6
3R400F-3S								400±30%							850			950					1	1			60		15	2	3		100		6
3R420F-3S								360-560							850			950					1	1			60		15	2	3		100		6
3R470F-3S								470±30%							900			1000					1	1			60		15	2	3		100		6
Glow to Arc transition Current…………………………………………................... ~0.3A
Weight ~0.30g
Operation and storage temperature…………………………………..................... -40~+90°C
Climatic category (IEC 60068-1) 40/90/21
Marking………………………………………………………………….................... Without
Surface treatment Matte-tin plated
1) At delivery AQL 0.65 level II, DIN ISO 2859 2) In ionized mode 3) Tip or ring electrode to center electrode 4) Insulation Resistance Measuring Voltage: 90V~150V at DC 50V Other at DC 100V 5) Total current through center electrode, half value through tip respectively ring electrode. 6) Tip to ring electrode. 7) Tip to center electrode additional ring to center electrode. Terms in accordance with ITU-T Rec. K.12, IEC 61643-311, GB/T 9043.

 

Symbol

Millimeters

Inches

A

3.5±0.2

0.138±0.008

B

3.5±0.2

0.138±0.008

C

6.8±0.3

0.268±0.012

D

1.2±0.3

0.047±0.012

E

0.4±0.2

0.016±0.008

F

0.4±0.2

0.016±0.008

X

1.4

0.055

X1

1.8

0.071

X2

6.7

0.264

Y

4.2

0.165

 

Symbol

Millimeters

Inches

W

16±0.3

0.630±0.012

A0

3.8±0.1

0.154±0.004

B0

7.0±0.1

0.276±0.004

K0

3.7±0.1

0.146±0.004

P

8±0.1

0.315±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

 

Soldering Parameters - Reflow Soldering (Surface Mount Devices)

 

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 ( Liquids Temp TL) to peak

3°C/second max

TS(max) to TL - Ramp-up Rate

5°C/second max

Reflow

- Temperature (TL) (Liquids)

217°C

- Time (min to max) (ts)

60 -150 Seconds

Peak Temperature (TP)

260 +0/-5°C

Time within 5°C of 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