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STMicroelectronics 1-Element Bi-Directional TVS Diode DO-214 Package 400W Peak Pulse Power SM4T68CAY
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Package | DO-214AC (SMA) |
| Height | 2.45mm |
| Length | 4.6mm |
| Model | SM4T68CAY |
| Width | 2.9mm |
| Mount Type | Surface |
| Series | SM4TxxCAY |
| Maximum Operating Temperature | 150°C |
| Package Type | DO-214 |
| Minimum Operating Temperature | -55°C |
| Pin Count | 2 |
| Number of Elements per Chip | 1 |
| Clamping Voltage VC | 121V |
| Automotive Standard | AEC-Q101 |
| Diode Configuration | Single |
| Direction Type | Bi-Directional |
| Minimum Breakdown Voltage Vbr | 64.4V |
| Maximum Reverse Stand-off Voltage Vwm | 58V |
| Peak Pulse Power Dissipation Pppm | 400W |
| Test Current It | 1mA |
| Maximum Peak Pulse Current Ippm | 19A |
| Maximum Reverse Leakage Current | 1μA |
Key Features
- Designed for automotive transient voltage suppression complying with ISO 7637-2 and ISO 10605 standards.
- Bi-directional diode configuration offers effective surge protection for sensitive electronics.
- Peak pulse power dissipation rated at 400W with a clamping voltage of 121V.
- Compact surface mount DO-214 package with 2-pin configuration and dimensions 4.6 x 2.9 x 2.45 mm.
- Operational temperature range from -55°C to 150°C suits harsh automotive environments.
- Minimum breakdown voltage of 64.4V and maximum reverse standoff voltage of 58V ensure reliable protection.
- Qualified to automotive standard AEC-Q101 for durability and performance.
- Extremely low maximum reverse leakage current of 1µA for minimal power loss.
Product Description
STMicroelectronics SM4T68CAY is a 1-element bi-directional Transient Voltage Suppressor (TVS) diode designed to protect automotive electronic circuits against transient voltage surges. It features a peak pulse power dissipation rating of 400 watts within a compact DO-214 surface mount package, making it suitable for densely packed automotive circuit boards.
This TVS diode complies with automotive standards ISO 7637-2 and ISO 10605, ensuring robust surge protection against electrostatic discharges and transient surges typically experienced in automotive environments. The bi-directional configuration safeguards circuits from voltage spikes in both polarities.
The diode offers a minimum breakdown voltage of 64.4V and a maximum reverse standoff voltage of 58V, effectively clamping voltage surges to a maximum of 121V peak clamp voltage. It can handle a maximum peak pulse current of 19A at a test current of 1mA, protecting sensitive semiconductors and components in control units and sensor circuits.
Measuring 4.6 mm in length, 2.9 mm in width, and 2.45 mm in height, this compact device features a 2-pin DO-214AC (SMA) package for surface mounting on PCBs. It operates reliably in a wide temperature range from -55°C to 150°C, suitable for automotive under-the-hood and body electronics applications. The maximum reverse leakage current is exceptionally low at 1 microampere.
Qualified to the AEC-Q101 automotive standard, the SM4T68CAY ensures high reliability and durability in demanding vehicle electrical systems. Designed for automotive transient voltage suppression per ISO 7637-2 and ISO 10605 standards.
Bi-directional diode configuration for comprehensive surge protection. 400W peak pulse power dissipation rating. Compact surface mount DO-214AC (SMA) package with small footprint. Operates in temperature range from -55°C to 150°C.
Low reverse leakage current of 1μA minimizes power losses. Ensures circuit protection up to a clamping voltage of 121V. Meets stringent automotive standard AEC-Q101 requirements. Ideal for use in automotive electronic control units, sensors, and circuits prone to voltage transients.
Explore related automotive-grade TVS diodes and semiconductor components in the Electronics & Electricals category at EnvMart for reliable circuit protection solutions.
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Frequently Asked Questions
The SM4T68CAY has a peak pulse power dissipation rating of 400 watts.
The clamping voltage for the SM4T68CAY is 121 volts.
This model operates reliably within a temperature range of -55°C to 150°C.
The dimensions of the DO-214 package are 4.6 mm in length, 2.9 mm in width, and 2.45 mm in height.
The SM4T68CAY features 1 element per chip.
The maximum reverse leakage current for the SM4T68CAY is 1 microampere (1μA).
This TVS diode complies with automotive standards ISO 7637-2 and ISO 10605, and is qualified to AEC-Q101.
The maximum reverse stand-off voltage of this model is 58 volts.
The SM4T68CAY uses a bi-directional diode configuration.
This diode can handle a maximum peak pulse current of 19 amperes at a test current of 1mA.
The SM4T68CAY is designed for surface mounting.
The SM4T68CAY is suited for protecting automotive electronic control units, sensors, and circuits prone to voltage transients.
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