SPSEMI GDT/B8L&B8K(HV) Series Gas Discharge Tube B8L&B8K(HV) Series Features Electronic stability Small volume, easy to placement machine operation Large flow capacity, impact resistant ability Static electricity capacity, good insulation Reaction speed is 50 ns - 150 ns Applications ADSL MODEM、FAX、TELEPHONE RS485、RS232、CAN level of protection CATV Power supply prevents thunder common-mode protection Marking Code B8L80R Logo B8L80 Marking Code Logo Marking Code Product Name B8 L 80 R X Internal Code(Default) R: With Lead Default: No Lead Nom. DC spark-over voltage Vs 09:90V 15:150V 47:470V 150:1500V Electrical Characteristics K: 3KA L: 5KA M:10KA H: 20KA B5: 2R/5*5mm B8: 2R/8*6mm C6: 3R/6*8mm C7: 3R/7*11.5mm C8: 3R/8*10mm REV . 2017 . 04 . 06 www.spsemi.cn Page 1 of 3 SPSEMI GDT/B8L&B8K(HV) Series 6 ±0 . 2 Φ0 . 8 ± 0 . 1 Dimensions Φ8±0 . 2 60±5 Dimensions in millimeters Electrical Characteristics Part Number Nom. DC Impulse Nom.Impulse Alternating Spark-over Spark-over Discharge Discharge Voltage Voltage Current Current (@8/20μs) (@100V/s） (@1KV/μs) (@50HZ) (V) (KA) (V) (A) Insulation Resistance Capacitance (pF) (GΩ) (@DC) (V) 5 >1 250 < 1.5 5 5 >1 250 < 1.5 ≦2200 5 5 >1 500 < 1.5 2000±20 % ≦2800 5 5 >1 500 < 1.5 B8L250 2500±20 % ≦3600 5 5 >1 500 < 1.5 B8K300R B8K300 3000±20 % ≦4200 3 3 >1 1000 < 1.5 B8K350R B8K350 3500±20 % ≦5000 3 3 >1 1000 < 1.5 With Wire Without Wire B8L80R B8L80 800±20 % ≦1200 5 B8L100R B8L100 1000±20 % ≦1400 B8L150R B8L150 1500±20 % B8L200R B8L200 B8L250R Packaging Speci Cations Packaging:100 pieces bulk Initial Characteristics Test Item Test Method Specification DC-Spark-Over Voltage Vs Add and measure the DC Voltage gradually Maxto get the discharge threshold voltage. The measuring current is 1mA/1 second max.（1sec ） .(1mA) It depands on each spec. Insulation Resistance Measure the insulation resistance of two end of leadwire under the specified DC voltage. 100MΩ min. Capacitance C(pF) Electrostatic Capacitance under the test condition of 1KHz,DC 6V(max). 0.8pF max. REV . 2017 . 04 . 06 www.spsemi.cn Page 2 of 3 SPSEMI GDT/B8L&B8K(HV) Series Surge Characteristics Test Item Test Method Specification Surge withstand capability In the glass tube ends in 8/20 us surge tester, applying the model that corresponds to the impact resistance current, time interval for the 60 s of plus or minus the test 5 times. Test the dc voltage, insulation resistance, static capacitance and check the appearance. DC spark-over voltage JSE: △ Vs/Vs ≦ 30% Surge life test Apply 10KV voltage charged in 1500pF condenser and apply the current to the specimen,200 times at 10 seconds of intervals. Within standard mentioned in Initial Characteristics. Enviromental Characteristics Test Item Test Method Specification Cold resistance After -40±3℃ (1000hrs) / room temp.,normal humidity(4 hrs) cycle, measure the properties. Within standard mentioned in Initial Characteristics. Heat resistance After 125±2℃ (1000hrs) / room temp.,normal humidity(4 hrs) cycle, measure the properties. Within standard mentioned in Initial Characteristics. Temperature resistance After 85±2℃ RH85%(1000hrs) / room temp.,normal humidity(4 hrs) cycle, measure the properties. Within standard mentioned in Initial Characteristics. Temperature period 25 times repetition of cycle -40±3℃ (30 Min.),roon temp., (4 Min.), 125±2 ℃ (30Min.), room temp., normal humidity(4hrs) . Within standard mentioned in Initial Characteristics. Tensile strength Apply 2.5kgs load approximately 30 seconds, then check for pull-out and breaking of the lead wire. Within standard mentioned in Initial Characteristics. Bending strength Bend the lead wire, with jig which radius is 0.75~0.8mm, at the point of 2mm from the body, under 0.25 kgs load applied at the right angle the direction of theamis and get the bent lead wire back to its original poing after the procedure was repeated 2times. Within standard mentioned in Initial Characteristics. Resistance to soldering attachment （ by solder dip ） Apply flux and immerse in molten solder, up to the point of 3mm from the body,for 5 sec. (235 ±5 ). Wash the leadwire and check for soldering adhesion. Lead wire is evenly covered by solder over 90%. Resistance to soldering heat （ by solder dip ） Apply flux and immerse in molten solder, up to the point of 3mm from the body,for 5 sec. (235 ℃ ±5 ℃ ). Wash the leadwire and check forsoldering adhesion.) Within standard mentioned in Initial Characteristics. REV . 2017 . 04 . 06 www.spsemi.cn Page 3 of 3