Power Electronics Components in Pakistan | stem.pk

stem.pk stocks a wide range of power electronics components — IGBTs, high-power MOSFETs, thyristors (SCR), triacs, power diodes, bridge rectifiers, gate drivers, transformers, toroidal cores, and power conversion modules for industrial, automotive, solar, and DIY power projects in Pakistan. Whether you're designing a motor drive, inverter, UPS, or welding machine, we have the power semiconductors and passive components you need.

Why Power Electronics from stem.pk?

• High-current rated parts — MOSFETs and IGBTs rated from 20A to 200A+
• High-voltage components — parts rated up to 1200V for mains-connected inverter designs
• Complete drive circuits — gate driver ICs, bootstrap capacitors, and optocouplers stocked alongside power devices
• Tested for Pakistani grid — 220V/50Hz compatible parts with appropriate voltage margins

Component Categories

• IGBTs — IRG4PC40UD, FGH40N60, GT60M303; for inverters, motor drives, and welders
• Power MOSFETs — IRF3205, IRFP460, STP55NF06; for DC-DC converters and motor control
• Thyristors (SCR) — BT151, TYN612, MCR100; for phase control and AC switching
• Triacs — BTA16, BTA26; for AC load control in dimmers and motor starters
• Power diodes — 1N5408, MUR860, BY255; for high-current rectification
• Bridge rectifiers — KBPC3510, GBJ2510, W10M; full-wave rectification up to 35A
• Gate driver ICs — IR2110, IR2104, TLP250; for half-bridge and full-bridge IGBT/MOSFET drives
• Ferrite cores & toroids — for SMPS transformer and inductor winding

Related Categories

Build complete power systems with Solar & Inverter components. Protect battery packs with BMS - Battery Management Systems. Control power circuits from Microcontrollers or dedicated gate driver ICs. Filter and smooth power rails using components from Resistors & Capacitors.

Common Applications

• Solar inverters — IGBT full-bridge + gate driver + transformer for off-grid systems — see Solar & Inverter
• Motor variable frequency drives (VFD) — IGBT modules for 3-phase motor speed control
• UPS systems — MOSFET H-bridge + toroidal transformer
• Induction heaters — IGBT resonant tank circuits for cooking and industrial heating
• Welding inverters — high-frequency IGBT switching for compact welders

How to Choose

1. Voltage rating — use at least 2× the expected peak voltage for reliability margin
2. Current rating — select parts rated 1.5–2× continuous load current
3. Switching speed — fast IGBTs and MOSFETs for high-frequency converters; slower thyristors for line-frequency control
4. Package — TO-247 and TO-3P for bolted heatsink mounting in high-power builds

Learning Resources

• Power Electronics — Wikipedia — overview of converter topologies and device types
• TI Gate Driver Design Guide — bootstrapped gate driver circuit design for half-bridge
• Infineon IGBT Selection Guide — IGBT families and application selection
• Electronics Hub — Power Electronics — SCR, triac, and IGBT theory with circuits

Need BMS protection for your power system battery? Browse BMS - Battery Management Systems. For bulk power electronics supply for inverter or UPS manufacturing contact info@stem.pk.