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.
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03P6MG(1)-AZ
SILICON CONTROLLED RECTIFIER
SD1A220G
THYRISTOR DO-15 T&R 4K
SJ6016R2TP
SCR 600V 16A TO220AB
SK015LTP
SCR 1KV 15A ITO220AB
S4010DTP
SCR 400V 10A TO252
VS-ST700C16L0
SCR 1.6KV 1857A B-PUK
VS-25TTS08-M3
SCR 800V 25A TO220AB
S4X8ES2RP
SCR 400V 800MA TO92
CLF20E1200PB
SCR 1.2KV 31A TO220
2N6171
ISOLATED STUD TO48 35 AMP SCR
S4S2RP
SCR 400V 800MA COMPAK
VS-ST180S12P0V
SCR 1.2KV 314A TO209AB
SV6025L1TP
SCR 25A 600V HI TEMP TO220L
C228D2
ISOLATED 35 AMP SCR T0-48
NTE5582
SCR 600V 275A TO93
SV6012N1TP
SCR 12A 600V HI TEMP TO263
CLA30E1200PC-TUB
SCR 1.2KV 47A TO263
C137B
SCR 35 AMP 200V TO-48
SK016RTP
SCR 1KV 16A TO220AB-R
S4006NS3TP
SCR 400V 6A TO263