사양
| 속성 | 가치 |
| Supplier | Bourns Inc. |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | SMCJ |
| Part Status | Active |
| Type | Zener |
| Bidirectional Channels | 1 |
| Voltage - Reverse Standoff (Typ) | 28V |
| Voltage - Breakdown (Min) | 31.1V |
| Voltage - Clamping (Max) @ Ipp | 45.4V |
| Current - Peak Pulse(10 / 1000µs) | 33.1A |
| Power - Peak Pulse | 1500W (1.5kW) |
| Power Line Protection | No |
| Applications | General Purpose |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
개요
Description
SMCJ28CA is a surface-mount transient-voltage-suppressor (TVS) diode in the SMB/DO-214AB package. The "28" indicates a nominal standoff voltage near 28 V, and the "CA" suffix designates bidirectional operation (non-polar, symmetrical). It protects circuits from high-voltage transients such as load dumps, inductive spikes, and ESD in 24–28 V systems (e.g., automotive, industrial, telecom).
Key points:
- Bidirectional TVS diode (CA = bidirectional)
- Typical working/standoff voltage around 28 V
- High peak pulse power capability (in the 600 W class, 10/1000 µs)
- Package: SMB/DO-214AB with wide operating temperature range (roughly -55 to 125 °C)
- Used across supply rails or signal lines to clamp surges
For exact values (Vrwm, Vbr, Vclamp, IPP) consult the specific datasheet for the SMCJ28CA from the manufacturer.
Key points:
- Bidirectional TVS diode (CA = bidirectional)
- Typical working/standoff voltage around 28 V
- High peak pulse power capability (in the 600 W class, 10/1000 µs)
- Package: SMB/DO-214AB with wide operating temperature range (roughly -55 to 125 °C)
- Used across supply rails or signal lines to clamp surges
For exact values (Vrwm, Vbr, Vclamp, IPP) consult the specific datasheet for the SMCJ28CA from the manufacturer.
Equivalent
Equivalents are 28 V bidirectional TVS diodes in the SMC (DO-214AB) package with ~1.5 kW peak pulse power. Different vendors use different cross-references, but you can substitute SMCJ28CA with any 28 V bidirectional SMC TVS that matches the same standoff and clamp specs (or higher) and same footprint. Common sources include Vishay, Littelfuse, ON Semiconductor, ProTek, etc. Always verify cross-reference tables in the datasheet.
Features
SMCJ28CA features (concise):
- TVS diode in SMC package (DO-214AB)
- VRWM ~ 28 V (protects 24–28 V systems)
- Peak pulse power: about 1.5 kW (10/1000 μs)
- Very fast transient response for immediate clamping
- Low leakage at VRWM
- Operating temp: typically -55°C to 125°C
- RoHS-compliant; automotive-grade options available
- Ideal for protection of DC power lines, automotive/industrial I/O, and data ports
- TVS diode in SMC package (DO-214AB)
- VRWM ~ 28 V (protects 24–28 V systems)
- Peak pulse power: about 1.5 kW (10/1000 μs)
- Very fast transient response for immediate clamping
- Low leakage at VRWM
- Operating temp: typically -55°C to 125°C
- RoHS-compliant; automotive-grade options available
- Ideal for protection of DC power lines, automotive/industrial I/O, and data ports
Pinout
- Pin count: 2 terminals (two-lead device in DO-214AB/SMC package).
- Function: Transient-voltage-suppressor (TVS) diode used to clamp voltage transients and protect circuits; 28 indicates its nominal standoff/clamp voltage on the line.
- Function: Transient-voltage-suppressor (TVS) diode used to clamp voltage transients and protect circuits; 28 indicates its nominal standoff/clamp voltage on the line.
Manufacturer
SMCJ28CA is a TVS diode in the SMCJ package. It is produced by several manufacturers; a common source is Littelfuse, Inc. Littelfuse is a global electronics components company that specializes in circuit protection devices (fuses, TVS diodes, surge protection) and related power-management components.
Application
SMCJ28CA is a 28V standoff TVS diode used for transient protection. Applications: protect 28V DC rails and associated circuits against surges, spikes, ESD, and inductive kick. Common areas: automotive 24V/28V electrical systems, industrial control panels and DC buses, telecom/datacom equipment with 28V rails, solar/renewable power electronics and PV charge controllers, power-supply inputs and DC-DC converter front-ends, battery-management systems and energy-storage electronics, and any 28V system requiring rugged transient/surge protection on power and I/O lines.
Package
SMCJ28CA uses the SMC package (DO-214AB), the larger surface-mount TVS diode package.
