Audited Supplier
| Type(have no lead wire) Ф5.5×6mm | ZM556 2R-75 | ZM556 2R-90 | ZM556 2R-150 | ZM556 2R-230 | ZM556 2R-350 | ZM556 2R-470 | ZM556 2R-600 |
| Type(have lead wire) Ф5.5×6mm | ZM86 2R-75L | ZM86 2R-90L | ZM86 2R-150L | ZM86 2R-230L | ZM86 2R-350L | ZM86 2R-470L | ZM86 2R-600L |
| Nominal DC Spark-over voltage 100V/s(V) | 75 | 90 | 150 | 230 | 350 | 470 | 600 |
| Deviation of VS (V)% | ±25 | ±25 | ±20 | ±20 | ±20 | ±20 | ±20 |
| Impulse spark-over voltage100V/μs(V) | ≤500 | ≤500 | ≤500 | ≤600 | ≤800 | ≤1000 | ≤1200 |
| Impulse spark-over voltage 1KV/μs(V) | ≤600 | ≤600 | ≤650 | ≤700 | ≤900 | ≤1100 | ≤1300 |
| Impulse dischargecurrent10/350μs(KA)1times | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| Impulse discharge current 8/20μs(KA) 10times | 10 | 10 | 10 | 5 | 5 | 5 | 3 |
| Impulse discharge current 10/1000μs(A/times) | 100/300 | 100/300 | 100/300 | 100/300 | 100/300 | 100/300 | 100/300 |
| Alternating discharge current 50Hz 10times(A) | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Insulation resistance (Ω) | ≥108 | ≥108 | ≥109 | >109 | >109 | >109 | >109 |
| Capacitance (1 MHz) pF | <1<> | <1<> | <1<> | <1<> | <1<> | <1<> | <1<> |
With convenient transportation and rapid economical development, Ningbo Zhengmao Electronics Co., Ltd. (with a former name Ningbo Shitong Telecommunication Component Factory) is located in the south of Ningbo Zhejiang Province, China. Founded in 2002, our company specializes in researching and manufacturing Switching Spark Gaps, Gas Discharge Tube and others.
We are a member under identification of Quality Management System (ISO9001-2008QMS). Our products all meet the International standard of IEC61643-311, Recommendation Standard of ITU-T K.12 and the national standard GB/T9043-2008/ Communication Equipment Over-voltage Protection with General Technical Conditions on Gas Discharge Tube, etc.. Gas Discharge Tube has got the TüV certification of German and SGS certification , meeting the rules of RoHS. Based on Quality, we aim at satisfying our customers by continually improving our product quality and service to meet your needs.
