Thyristors - SCRs
Thyristors - SCRs: Precision Power Control Components
Definition & Core Functionality
Thyristors - Silicon Controlled Rectifiers (SCRs) are critical semiconductor devices within the Discrete Semiconductor Products category, designed for high-efficiency power control in AC/DC circuits. As solid-state switches, SCRs excel in regulating high-voltage/high-current applications by triggering conduction with a gate signal and maintaining it until current drops below a threshold. Their unidirectional current flow makes them ideal for rectification, phase control, and surge protection in industrial and consumer electronics.
Key Types & Applications
1. Standard SCRs: General-purpose modules for motor controls, lighting systems, and power supplies.
2. Sensitive Gate SCRs: Low-trigger-current variants for precision circuits like medical equipment.
3. Phase-Control SCRs: Optimized for timing-dependent applications (e.g., dimmers, inverters).
4. High-Temperature SCRs: Robust designs for automotive/aviation systems.
Purchasing Recommendations
- Voltage/Current Ratings: Match device specs (e.g., VDRM, IT(RMS)) to operational demands, factoring in 20-30% overhead for safety.
- Gate Sensitivity: Select lower trigger currents (IGT) for low-power circuits; higher IGT ensures noise immunity in industrial settings.
- Packaging: TO-220/TO-263 packages balance heat dissipation and PCB space.
- Compliance: Prioritize UL/IEC-certified SCRs for regulated industries.
Why Choose SCRs?
SCRs offer unmatched reliability in harsh environments (e.g., temperature fluctuations, electrical noise), reducing maintenance costs versus mechanical switches. Their longevity (>100,000 cycles) and fast switching ( s-range) make them a cost-effective solution for energy-efficient designs.
Note: Pair with heat sinks for >5A applications to maximize lifespan.
Filter and sort
Categories
S602TSRP
SCR 600V 1.5A SOT223
2N684
TO 48 25 AMP SCR
MCR25DG
SCR 400V 25A TO220AB
S4006NRP
SCR 400V 6A TO263
TS1220-600T
SCR 600V 12A TO220AB
S6006DS3TP
SCR 600V 6A TO252
NTE5444
SCR 200V 8A TO127
SCR5162-005
THY T092 SPECIAL SCR
VS-ST1230C16K0
SCR 1.6KV 3200A A24
S6004DS2TP
SCR 600V 4A TO252
P0102DN 5AA4
SCR 400V 800MA SOT223
C106BG
SCR 200V 4A TO225AA
S8X8ES1RP
SCR 800V 800MA TO92
S6010DRP
SCR 600V 10A TO252
OT386127
OT386 - GEN. PURPOSE THYRISTOR
S8X5ECS2AP
SCR SEN 800V 0.5A TO-92WB
TN1610H-6FP
SCR 600V 16A TO220FPAB
TFA38S
SCR 800V 4.7A TO220F
TS110-8A2
SCR 800V 1.25A TO92-3
X00602MA 2AL2
SCR 600V 800MA TO92-3