SMBJ300A
Transient voltage suppressor diode
Quantity | Unit Price(USD) | Ext. Price |
---|---|---|
6000 | $0.134 | $804.00 |
3000 | $0.141 | $423.00 |
500 | $0.151 | $75.50 |
150 | $0.174 | $26.10 |
50 | $0.193 | $9.65 |
5 | $0.236 | $1.18 |
Inventory:5,134
- 90-day after-sales guarantee
- 365 Days Quality Guarantee
- Genuine Product Guarantee
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Part Number : SMBJ300A
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Package/Case : DO-214AA
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Manufacturer : SMC Diode Solutions
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Components Classification : TVS Diodes
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Datesheet : SMBJ300A DataSheet (PDF)
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Series : SMBJ300
Overview of SMBJ300A
The SMBJ300A is a Transient Suppressor optimized for robust performance, high-temperature operation, and precise control. It provides excellent surge protection for specific applications, such as analog and digital signal switching.
Pinout
The SMBJ300A pinout refers to the configuration and function of each pin in its SMB-2 package. This package typically includes a diagram showing the layout of the pins when viewed from the top down with pins named sequentially. Each pin on the SMBJ300A has a specific role such as power supply input, ground connection, or signal interface. The pinout details are crucial for integrating this component into a circuit as they ensure correct connections for optimal device performance. Designers and engineers must refer to the datasheet provided by the manufacturer to get accurate information regarding each pin's function and electrical characteristics.
Features
- Robust against electromagnetic interference: The SMBJ300A is designed to withstand electromagnetic interference, ensuring reliable performance in harsh environments.
- Precision circuitry for precise control: The component features precision circuitry that provides precise control over the surge protection mechanism.
- Durable construction for heavy use: The SMBJ300A has a durable construction that can withstand heavy use and repeated surges without compromising its performance.
- Efficient surge protection: The component provides efficient surge protection, ensuring that sensitive circuits are protected from voltage spikes and other forms of electrical noise.
- Compact package saves space: The SMBJ300A has a compact package that saves space in electronic designs, making it ideal for applications where space is limited.
Applications
- TVS devices are ideal for the protection of I/O Interfaces, VCC bus and other vulnerable circuits used in Telecom, Computer, Industrial and Consumer electronic applications.
Advantages and Disadvantages
Advantages
- Safe for high-reliability systems: The SMBJ300A is designed to provide safe and reliable surge protection, making it suitable for high-reliability systems.
- Fast response to threats detected: The component responds quickly to detected threats, ensuring that sensitive circuits are protected in real-time.
- Low power consumption: The SMBJ300A has low power consumption, reducing the overall power requirements of electronic designs.
- Rugged design withstands harsh environments: The component's rugged design allows it to withstand harsh environmental conditions, making it suitable for use in a wide range of applications.
Disadvantages
- No information available on disadvantages: As the SMBJ300A is a high-quality transient suppressor, there are no significant disadvantages to its use.
Equivalents
For similar functionalities, consider these alternatives to the SMBJ300A:
- Bourns' other TVS devices: Bourns offers a range of TVS devices that provide similar surge protection capabilities.
- Other transient suppressors from various manufacturers: Other manufacturers also offer transient suppressors with similar features and performance characteristics to the SMBJ300A.
Frequently Asked Questions
Q: What is the maximum voltage rating of the SMBJ300A?
A: The maximum voltage rating of the SMBJ300A is 300 volts.
Q: Can the SMBJ300A be used in high-reliability systems?
A: Yes, the SMBJ300A is designed to provide safe and reliable surge protection, making it suitable for use in high-reliability systems.
Q: How does the SMBJ300A respond to detected threats?
A: The SMBJ300A responds quickly to detected threats, ensuring that sensitive circuits are protected in real-time.
Q: Is the SMBJ300A suitable for use in harsh environments?
A: Yes, the SMBJ300A has a rugged design that allows it to withstand harsh environmental conditions, making it suitable for use in a wide range of applications.

Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Package | Tape & Reel (TR) | Product Status | Active |
Type | Zener | Unidirectional Channels | 1 |
Voltage - Reverse Standoff (Typ) | 300V | Voltage - Breakdown (Min) | 335V |
Voltage - Clamping (Max) @ Ipp | 486V | Current - Peak Pulse (10/1000µs) | 1.3A |
Power - Peak Pulse | 600W | Power Line Protection | No |
Applications | General Purpose | Operating Temperature | -55°C ~ 150°C (TJ) |
Mounting Type | Surface Mount | Package / Case | DO-214AA, SMB |
Supplier Device Package | SMB (DO-214AA) | Base Product Number | SMBJ300 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy ?
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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Shipping and Package ?
Shipping:For example, FedEx, JP, UPS, DHL,SAGAWA, or YTC.
Parts Packaging Guarantee: Featuring 100% ESD anti-static protection, our packaging incorporates high toughness and superior buffering capabilities.
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Payment ?
For example, channels like VISA,MasterCard,Western Union,PayPal,MoneyGram,Rakuten Pay and more.
If you have specific payment channel preferences or requirements, please get in touch with our sales team for assistance.

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SMBJ300A
Transient voltage suppressor diode
Inventory:
5,134
Warranty & Returns
After Sales Service
What after-sales service can be provided?
We provide an extended quality assurance period of 365 days for all components we offer. If a return or exchange becomes essential, kindly adhere to these guidelines:
·Initiate the request within 90 days after the item's shipment date.
·Coordinate the return or exchange with our team.
·Keep the items in their original condition as delivered.
·Please be aware that the feasibility of returning or exchanging items is contingent upon an evaluation of their actual state upon return.
Shipping
What channels of transportation of goods does the website support?
We usually send out our orders during business days using FedEx, SF, UPS, or DHL. We're also here to assist with alternative shipping options. Should you require additional information about shipping particulars or expenses, please don't hesitate to get in touch with us.







Package
How to ensure that the parts will be intact during transportation?
The items we ship will be packaged in anti-static bags, ensuring ESD anti-static protection, while the outer packaging boasts exceptional durability and sealing. We offer packaging options like Tape and Reel, Cut Tape, Tube, or Tray to suit your needs.




Payment
Which payment methods can be used to pay for goods
Accepted payment methods commonly encompass VISA, MasterCard, UnionPay, Western Union, PayPal, and various other options.
Should you have a particular payment preference or wish to seek information on rates and other specifics, please feel free to reach out to us.




