In circuit systems such as industrial controls, communication power supplies, automotive peripherals and security equipment, lightning-induced surges, electrostatic interference and electrical fast transients (EFT) can easily damage downstream chips and components. High-power transient-voltage suppressor diodes serve as core devices for circuit-protection design. The Slkor 5.0SMDJ36CA is a bidirectional TVS diode packaged in SMC (DO-214AB). Featuring 5000 W high pulse power, ultra-fast response and excellent clamping performance, it is designed for 36 V AC/DC non-polar circuits. It effectively dissipates positive and negative transient high-voltage pulses and delivers stable and reliable surge protection for sensitive circuits.

1. Key Electrical Parameters

1. Package: SMC (DO-214AB), surface-mount
2. Polarity: Bidirectional, no positive/negative polarity
3. Reverse stand-off voltage: 36.0 V
4. Breakdown voltage: 40.0 V ~ 44.2 V
5. Maximum clamping voltage: 58.1 V
6. Peak pulse power: 5000 W (10/1000 μs)
7. Response time: ＜1.0 ps
8. Operating temperature: -55℃ ~ +125℃
9. Compliance: UL 94V-0 flame retardant, RoHS compliant

2. Key Product Advantages

1. 5000 W Super-high Power with Strong Surge Resistance Designed per the industry-standard 10/1000 μs pulse waveform, the device withstands peak pulse power up to 5000 W. It efficiently absorbs high-energy impacts caused by lightning surges, power-supply fluctuations and transient pulses. Well-suited for high-interference and high-risk circuit environments in industrial, automotive and outdoor equipment, it provides ample protection margin and greatly reduces the risk of circuit breakdown.
2. Bidirectional Symmetrical Protection Simplifies Circuit Design Adopting a bidirectional symmetrical structure with no polarity requirement, it suppresses both positive and negative transient over-voltages and is compatible with AC loops and differential-signal loops. Polarity-free mounting simplifies PCB layout and routing and reduces design errors. It delivers all-round circuit stability for complex power-supply scenarios.
3. Ultra-fast Response & Low Loss for Superior Protection Performance With an ultra-fast response time below 1.0 ps, it turns on instantly to dissipate transient high-voltage spikes before they damage precision downstream components. It features low reverse leakage current and low inductance, resulting in extremely low quiescent power consumption without disturbing normal device operation. Combined with excellent 58.1 V clamping capability, it keeps surge voltages within safe limits.
4. Standardized SMD Package for Mass Production & High Reliability The standard SMC (DO-214AB) surface-mount package supports fully-automatic SMT assembly and meets modern demands for compact and lightweight hardware. Certified for flame retardancy and environmental protection, it operates stably from -55℃ to +125℃. It performs reliably under harsh conditions for automotive, industrial and outdoor applications with high production yield and consistent device-to-device performance.

3. Main Application Fields

Tailored for 36 V-rated circuits, this device fits a wide range of medium-voltage high-power protection scenarios. Typical applications include industrial control modules, communication power-supply systems, security-monitoring equipment, automotive peripheral circuits, IoT smart gateways, robot power ports, high-power signal interfaces and auxiliary circuits for new-energy equipment. It reliably protects MCUs, MOSFETs and various interface chips against damage from ESD, surges and pulse disturbances.

4. Engineering Design Recommendations

1. Voltage Matching: The normal operating voltage of the equipment must be lower than the 36.0 V reverse stand-off voltage, so that the TVS remains off under normal conditions. Avoid continuous conduction and over-heating to extend service life.
2. PCB Layout Optimization: Place the TVS close to the power and signal ports of the protected chip. Shorten trace lengths to minimize parasitic inductance and maximize surge-dissipation and clamping effectiveness.
3. Derating for Operating Conditions: This device is rated for non-repetitive pulses and cannot sustain 5000 W peak power continuously. Derate power or use multiple devices in combination for high-frequency or frequent-surge environments.
4. Convenient Polarity-free Installation: The bidirectional polarity-free design simplifies soldering. Suitable for AC and differential-line protection and lowers assembly failure rates.
5. Temperature Adaptation: Optimize thermal management and apply parameter derating under extreme high/low-temperature conditions to ensure long-term stable operation.

5. Product Summary

The Slkor 5.0SMDJ36CA is a high-performance 5000 W-class bidirectional surface-mount TVS diode. It combines high surge-absorption capacity, ultra-fast response, low power loss, wide-temperature stability and good manufacturability. Optimized for full-range 36 V AC/DC circuit-protection applications, it effectively suppresses transients induced by lightning, ESD and EFT. It is a cost-effective, highly-reliable domestic protection component of choice for industrial automation, automotive electronics, communications and security systems.

5.0SMDJ36CA To Product Pag