Authorized Distributor

TopDiode

Topdiode Manufacturing Company Limited is a China-based maker of discrete semiconductors and capacitors. According to the manufacturer, its headquarters, factories and engineering centre are in Hunan and Shandong provinces and its sales office and warehouse are in Dongguan. The company states it serves consumer electronics, computing, communications, industrial and military markets.

The discrete range includes rectifier, switching, zener, Schottky, fast recovery and TVS diodes, bi-directional trigger diodes (diacs), bridge rectifiers in through-hole and SMD form, and small-signal transistors. The capacitor range includes CA42 dipped and CA45 chip tantalum capacitors, CL21 metallised polyester film capacitors, ceramic capacitors and SMD electrolytics. The site also lists radial leaded varistors and publishes cross-reference tables.

Infinite Electronics LLP is an authorized distributor of TopDiode.

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Key Points

Diodes: rectifier, switching, zener, Schottky, fast recovery, TVS and bi-directional trigger diodes (DB3, DB4).
Schottky diodes listed from 1A to 5A, 20V to 200V, in axial and SMA/SMB/SMC packages.
TVS series P4KE (400W), P6KE (600W) and 1.5KE (1500W), 6.8V to 440V, plus SMAJ, SMBJ and SMCJ surface-mount series.
Bridge rectifiers are listed from 0.5A to over 10A, 50V to 1000V, in packages such as DB, KBP, GBL, KBJ and GBU.
CA42 radial tantalum capacitors: 0.1 to 1000uF, 6.3V to 50V, -55 to +125 C; CA45 chip tantalum capacitors in the same capacitance range.
Leaded varistors (VAR series) in 5mm to 20mm sizes, 18V to 1800V; the manufacturer states CQC, UL and VDE approvals.

Core Product Categories

Rectifier and Fast Recovery DiodesGeneral-purpose and fast recovery diodes for AC-DC power supplies, from 1N4007 types to FR series.
Schottky DiodesLow forward-drop diodes, 1A to 5A, in leaded and SMD packages for power supplies.
TVS Diodes and DiacsTransient voltage suppressors, 400W to 1500W, plus DB3/DB4 trigger diodes.
Bridge RectifiersThrough-hole and SMD bridges that convert AC to DC, from 0.5A upward.
Small Signal TransistorsSOT-23 NPN and PNP transistors such as BC8xx and MMBT series.
Tantalum CapacitorsCA42 radial dipped and CA45 chip tantalum capacitors, 6.3V to 50V.
Film CapacitorsCL21 metallised polyester and CBB-series polypropylene capacitors for power and motor circuits.
Leaded VaristorsRadial zinc oxide MOVs, 5mm to 20mm discs, for surge protection.

Typical Applications

Power supplies and AC-DC conversion TV and set-top boxes Energy-saving lamps and lighting Smart meters and power meters Household appliances Brushless DC motor fans Networking and datacom devices Medical devices and PCs

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