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Comprehensive Guide to SMBJ16CA Diode Protection

The SMBJ16CA diode provides effective surge protection for sensitive electronic components. This article will explore its features, applications, and protective benefits, giving you a clear understanding of how it safeguards circuits from unexpected voltage spikes and electrical surges.

Catalog

1. SMBJ16CA Overview

2. SMBJ16CA CAD Model

3. SMBJ16CA Specifications

4. Parts Comparable to SMBJ16CA

5. SMBJ16CA Key Features

6. SMBJ16CA Applications

7. SMBJ16CA Functional Diagram

8. SMBJ16CA Package Information

9. Manufacturer Information

SMBJ16CA

SMBJ16CA Overview

The SMBJ16CA is a protective diode built to shield sensitive electronic parts from surges and static discharges. With a working peak reverse voltage from 5V to 495V, it manages unexpected voltage spikes by absorbing extra energy, helping prevent damage to circuit components. Its breakdown voltage, at 550V, allows it to step in quickly, diverting excess current when needed. Unidirectional types respond in under a picosecond, while bidirectional types react within five picoseconds, providing fast, effective protection. Its flat design is compatible with standard pick-and-place machines, making it easy to handle and install, while also reducing the risk of rolling during assembly. Meeting JEDEC standards, the SMBJ16CA offers a trusted level of quality, fitting into a variety of applications where circuit protection is needed.

SMBJ16CA CAD Model

SMBJ16CA Symbol

SMBJ16CA Footprint

SMBJ16CA 3D Model

SMBJ16CA Specifications

Technical specifications, features, characteristics, and components with comparable specifications of Bourns Inc. SMBJ16CA

Type	Parameter
Factory Lead Time	14 Weeks
Contact Plating	Tin
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	DO-214AA, SMB
Number of Pins	2
Diode Element Material	SILICON
Breakdown Voltage	20.5V
Number of Elements	1
Reverse Stand-off Voltage	16V
Operating Temperature	-55°C~150°C TJ
Packaging	Digi-Reel®
Series	SMBJ
Published	2009
JESD-609 Code	e3
Pbfree Code	yes
Part Status	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	2
Termination	SMD/SMT
ECCN Code	EAR99
Type	Zener
Applications	General Purpose
Additional Feature	PRSM-MIN
Max Power Dissipation	600W
Terminal Position	DUAL
Terminal Form	C BEND
Base Part Number	SMBJ16
Pin Count	2
Operating Supply Voltage	3.5V
Polarity	Bidirectional
Number of Channels	1
Element Configuration	Single
Power Line Protection	No
Voltage - Breakdown (Min)	17.8V
Max Reverse Leakage Current	5μA
Clamping Voltage	26V
Voltage - Reverse Standoff (Typ)	16V
Peak Pulse Current	23.1A
Max Surge Current	100A
Peak Pulse Power	600W
Test Current	1mA
Max Breakdown Voltage	20.5V
ESD Protection	Yes
REACH SVHC	No SVHC
RoHS Status	ROHS3 Compliant

Parts Comparable to SMBJ16CA

Part Number	Manufacturer	Polarity	Breakdown Voltage	Max Breakdown Voltage	Clamping Voltage	Peak Pulse Power	Peak Pulse Current	RoHS Status	Number of Pins
SMBJ16CA	Bourns Inc.	Bidirectional	20.5 V	20.5 V	26 V	600 W	23.1 A	ROHS3 Compliant	2
SMBJ20CA	Bourns Inc.	Bidirectional	25.5 V	25.5 V	32.4 V	600 W	18.5 A	ROHS3 Compliant	2
SMBJ20CA-13-F	Diodes Incorporated	Bidirectional	23.3 V	23.3 V	29.2 V	600 W	20.5 A	ROHS3 Compliant	2
SMBJ18CA-13-F	Diodes Incorporated	-	20 V	20 V	29.2 V	600 W	20.5 A	ROHS3 Compliant	2
SMBJ18CA	Bourns Inc.	Bidirectional	25.5 V	25.5 V	32.4 V	600 W	18.5 A	ROHS3 Compliant	2

SMBJ16CA Key Features

Peak Pulse Power

The SMBJ16CA provides peak pulse power of 600W with a 10/1000μs waveform. This power handling capacity helps protect sensitive circuits from sudden electrical spikes, ensuring stability during unexpected surges.

Clamping Capability

With excellent clamping capability, the SMBJ16CA effectively limits excess voltage to a safe level. This protects downstream components, allowing the diode to quickly manage surges without risking damage to the circuit.

Low Surge Resistance

Designed with low incremental surge resistance, the SMBJ16CA efficiently conducts high currents during surges. This keeps the voltage across protected components low, enhancing the device's reliability in surge events.

Compact Surface Mount Package

The SMBJ16CA is built as a surface-mount package, making it easy to install and ideal for saving space on circuit boards. This design simplifies assembly and is compatible with automatic pick-and-place equipment, supporting fast and efficient production.

Minimal Leakage Current

With typical reverse leakage current (IR) under 1μA when VR exceeds 12V, the SMBJ16CA prevents unwanted current from flowing under normal conditions, reducing energy loss and helping to maintain the circuit’s overall efficiency.

Quick Response Time

The diode has a quick response time, typically less than 1 picosecond from 0V to breakdown voltage, providing near-instant protection against voltage surges and ensuring components are safeguarded immediately.

ESD Protection

The SMBJ16CA meets IEC 61000-4-2 ESD standards with up to 30kV protection for both air and contact discharges. This high level of protection makes it highly effective in shielding circuits from electrostatic discharges.

EFT Protection

It provides EFT (Electrical Fast Transient) protection in line with IEC 61000-4-4 standards, helping prevent disturbances from fast transient voltage bursts, often caused by switching devices or relays.

High-Temperature Soldering

The diode is built to handle high-temperature soldering up to 260°C for 10 seconds. This ensures durability during reflow soldering processes and allows for reliable performance even under high temperatures.

UL94V-0 Flammability Rating

With a UL94V-0 flammability rating for its mold compound, the SMBJ16CA ensures that, in case of fire, the material will self-extinguish, providing an additional safety feature for applications requiring flame resistance.

MSL Level 1 Compliance

Complying with Moisture Sensitivity Level (MSL) 1, the SMBJ16CA can withstand indefinite storage under ambient conditions without risk of moisture damage, supporting stable long-term use.

Lead-Free Finish

The diode is designed with a lead-free finish, supporting environmental standards and making it suitable for applications requiring compliance with RoHS (Restriction of Hazardous Substances) regulations.

Halogen-Free and RoHS Compliant

The SMBJ16CA is halogen-free and fully compliant with RoHS standards, making it a safe, environmentally friendly choice for a variety of applications.

SMBJ16CA Applications

Power Supply Protection

The SMBJ16CA is commonly used in power supplies to protect against voltage surges, which can occur due to load changes or external events. It helps keep the output stable, ensuring that connected devices operate smoothly.

Industrial Applications

In industrial environments where electrical equipment is exposed to frequent power fluctuations and surges, the SMBJ16CA provides added resilience. Its fast response time and high pulse power rating make it well-suited for demanding conditions.

Power Management

The diode plays a role in power management systems by absorbing excess voltage and redirecting it safely, helping to maintain consistent performance across the entire system and extending the lifespan of sensitive components.

I/O Interface Protection

Input and output interfaces can be particularly vulnerable to electrostatic discharges and transient voltage. The SMBJ16CA protects these interfaces, ensuring that signals remain stable and devices connected to these points stay secure from unwanted surges.

SMBJ16CA Functional Diagram

SMBJ16CA Package Information

SMBJ16CA Package

Manufacturer Information

Founded in 1947 by Marlan and Rosemary Bourns, Bourns, Inc. has established itself as an innovator in electronics, consistently delivering products that support modern technology needs. Known for its first-in-the-world Trimpot trimming potentiometer launched in 1952, Bourns set a high bar for quality and precision in electronic components. Today, Bourns is recognized for reliable, high-quality products that serve sectors like telecommunications, automotive, and consumer electronics, helping shape the future of technology with a continued commitment to excellence.

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Frequently Asked Questions [FAQ]

1. How does a transient voltage suppressor diode work?

A transient voltage suppressor diode acts as a protective shield in electrical circuits. When a voltage spike occurs, and the induced voltage goes beyond a specific breakdown level, the diode clamps the excess energy, absorbing it to prevent damage to the circuit. Once the voltage returns to normal, the diode resets automatically, ready for the next surge.

2. What causes transient voltage?

Transient voltages are often the result of sudden energy releases from events like lightning strikes, the operation of unfiltered equipment, contact bounces, arcing, or switching on and off capacitor banks or generators. These voltages are typically high in magnitude but last only a short time.

3. What does a transient voltage suppressor do?

A transient voltage suppressor (TVS) protects circuits from electrical overloads caused by electrostatic discharges, switching of inductive loads, and induced lightning. It quickly absorbs and redirects these surges, keeping the circuit safe and functioning properly.

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