Vishay Siliconix SI9120DJ-E3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Vishay Siliconix |
| Product Series | |
| Packaging | | |
| Output Isolation | Isolated |
| Internal Switch(s) | No |
| Voltage - Breakdown | - |
| Topology | Flyback, Forward |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 9.5V ~ 13.5V |
| Duty Cycle | 50% |
| Frequency - Switching | 40kHz ~ 1MHz |
| Power (Watts) | - |
| Fault Protection | - |
| Control Features | - |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 16-DIP (0.300", 7.62mm) |
| Supplier Device Package | 16-PDIP |
| ROHS |
Vishay Siliconix SI9120DJ-E3 PWM Controller IC
The SI9120DJ-E3 is a high-performance PWM (Pulse Width Modulation) controller IC from Vishay Siliconix, designed for isolated flyback and forward converter topologies in power supply applications. This versatile controller operates across a wide switching frequency range of 40kHz to 1MHz with a 50% duty cycle, making it ideal for aerospace, automotive, industrial, and telecommunications power management systems.
Key Features & Benefits
- Wide Switching Frequency Range: 40kHz to 1MHz for flexible design optimization
- Isolated Topology Support: Flyback and forward converter configurations
- Stable Supply Voltage: 9.5V to 13.5V operating range
- Industrial Temperature Range: -40°C to 85°C (TA) for harsh environments
- Standard Through-Hole Package: 16-DIP (0.300", 7.62mm) for easy prototyping and production
- RoHS Compliant: Environmentally friendly, lead-free construction
Applications
This PWM controller is perfectly suited for AC-DC and DC-DC offline switching power supplies in mission-critical applications requiring long lifecycle availability, full traceability, and authorized distributor support.

SI9120DJ-E3.pdf