- The Short Answer: What C-306 Means Here
- Who Issues It and How It Is Delivered
- What the Credential Covers
- Silver vs. Gold: Two Ways to Prove the Same Topic
- Who Can Take It and What It Costs
- What the Testing Experience Looks Like
- What Has Not Been Verified
- Scheduling Your Prep by Domain
- Who Values This Credential
- Frequently Asked Questions
- C-306 is the SACA micro-credential for Industrial Electronic Systems 2, centered on switching circuits.
- Silver is a proctored written exam; Gold adds a hands-on assessment on SACA-approved equipment.
- Eligibility requires being a student or employee of a SACA member organization.
- Scope spans 11 topic lines, from MOSFET and IGBT devices to SCR DC and TRIAC AC control.
The Short Answer: What C-306 Means Here
On this site, C-306 refers to one specific credential: Industrial Electronic Systems 2 (C-306). It is a micro-credential from the Smart Automation Certification Alliance (SACA). The code identifies the certification, and the title tells you the subject: industrial electronics, with a focus on the switching circuits that control motors, power supplies, and heating loads.
The acronym is not unique across the credentialing world, and other programs use similar-looking codes. Nothing in this article applies to any of them. If you arrived looking for a different certification, the facts below about SACA, its Silver and Gold levels, and its switching-circuit competencies will not transfer. If you are here for Industrial Electronic Systems 2, you are in the right place.
For related definitions, see our companion pages What Is C-306?, C-306 Meaning, and What Does C-306 Stand For?.
Who Issues It and How It Is Delivered
The issuer is the Smart Automation Certification Alliance (SACA). SACA organizes its certifications as stackable credentials, and C-306 sits among its micro-credentials. SACA announced a release of new micro-credentials on March 17, 2025, and the C-306 competency description appears in its Micro-Credential Descriptions listing. That announcement reported a pilot release. The date should not be read as an exam version number or as proof that the pilot status still applies today. SACA also states that its certifications undergo annual review, so details can change over time.
Delivery runs through the SACA online testing portal. Testing is arranged through SACA Authorized Testing Centers, and results and electronic certificates are issued through the portal. Where a remote-proctored workflow is enabled, Honorlock documents how SACA candidates use it. Your testing provider will tell you which format applies to you.
What the Credential Covers
SACA's description of C-306 centers on connecting, adjusting, operating, and troubleshooting named switching circuits. We organize the topics into 11 domain lines taken from that description. These are unweighted preparation topics, not an official numbered objective list, and the count of 11 reflects how many topic lines were supplied rather than a formal exam-domain count. For the full breakdown, read our complete guide to all 11 C-306 content areas.
| Topic Line | What It Points To |
|---|---|
| Industrial electronic switching circuits | Motor control, switching power supplies, and heating applications |
| Systems troubleshooting | Isolating faults in working circuits |
| Component testing | Verifying devices before and after installation |
| DMMs, oscilloscopes, status indicators | Measurement and diagnostic instrumentation |
| FET/JFET/MOSFET/IGBT transistors | Solid-state switching devices |
| PWM amplifiers | Pulse-width-modulated drive circuits |
| Switching DC power supplies | Regulated DC conversion by switching |
| Variable frequency amplifier circuits | Frequency-controlled drive stages |
| Operational amplifiers | Analog signal conditioning and control |
| SCR DC motor control | Phase-controlled DC motor drive circuits |
| TRIAC AC motor control and heating | AC load switching for motors and heaters |
Switching Devices: FET, JFET, MOSFET, and IGBT
This domain is the foundation for much of the rest of the credential. Candidates should be comfortable explaining how these transistors behave as switches and how that behavior shows up in real circuits.
- Know how each device type is turned on and off, and what that means for drive circuitry.
- Recognize where each family shows up in motor control and power conversion.
- Connect device behavior to what you would see on a meter or scope.
SCR DC and TRIAC AC Motor Control
These two domains are easy to blur together, so keep the pairing straight: SACA specifies SCR DC motor control and TRIAC AC motor control and heating.
- SCRs appear in the DC motor control line; TRIACs appear in the AC motor control and heating line.
- Practice describing how each device is triggered and how that controls power delivered to the load.
- Be ready to connect, adjust, operate, and troubleshoot these circuits, since those are the verbs in the issuer's description.
Silver vs. Gold: Two Ways to Prove the Same Topic
SACA's certification process recognizes two levels for a given topic, and understanding them is central to understanding what "C-306" can mean on a resume.
| Level | What It Requires |
|---|---|
| Silver | A proctored written knowledge examination delivered through the SACA online testing portal |
| Gold | The same-topic Silver credential, plus a successful hands-on assessment on SACA-approved equipment with an authorized Gold proctor |
In short, Silver demonstrates what you know, and Gold demonstrates that you can also do it on real equipment. Since Gold builds on the matching Silver credential, the written exam is the entry point either way. Our C-306 Certification page covers how the pieces fit together.
Who Can Take It and What It Costs
SACA certifications are tied to its membership model. Candidates must be students or employees of a SACA member. SACA requires no particular preparation course, so there is no universal training mandate attached to the exam itself.
On cost, SACA states that eligible students of education members and employees of industry members receive certifications without additional SACA certification fees. Organizational membership and local provider charges are separate matters.
For the full eligibility discussion, see C-306 Requirements: Eligibility, Prerequisites & How to Qualify, and for money questions, C-306 Certification Cost: Complete Pricing Breakdown.
What the Testing Experience Looks Like
The written exam is proctored and delivered through the SACA portal, either at an authorized testing center or through a remote-proctoring workflow where one is enabled. SACA's currently linked Gold and Silver process document, dated March 19, 2021, allows a failed written exam to be retaken after 24 hours. Results and electronic certificates are issued through the portal.
Because the exam is built around circuits and instruments, expect the content to reward applied understanding: reading what a waveform or meter reading implies, recognizing how a device behaves in a switching stage, and reasoning about fault symptoms. This is an inference from the competency description (connecting, adjusting, operating, and troubleshooting), not a published item-format specification, so treat it as a preparation heuristic rather than a guarantee. Our C-306 difficulty guide discusses how candidates tend to find the material.
What Has Not Been Verified
Honesty about gaps is part of good preparation. The following items were not verified from issuer sources, so any figure you see elsewhere should be treated with caution:
- Official percentage weights for each topic
- The number of questions on the written exam
- The time limit
- The passing score
If you need to understand what is and is not known about scoring and results, read C-306 Passing Score and C-306 Pass Rate. Since no weighting is published, the safest approach is to prepare evenly across the 11 topic lines rather than betting on a few favorites.
Key Takeaway
Do not build your plan around a target score you cannot verify. Build it around being able to explain, measure, and troubleshoot each of the 11 topic areas.
Scheduling Your Prep by Domain
If you want a simple sequence, order the topics so each one supports the next. This sequence is a suggestion for this credential specifically, not a universal template. For a fuller plan, see the C-306 Study Guide.
Tools and Devices
- Digital multimeters, oscilloscopes, and status indicators
- Component testing
- FET/JFET/MOSFET/IGBT transistor behavior
Amplifiers and Supplies
- Operational amplifiers
- PWM amplifiers
- Switching DC power supplies
- Variable frequency amplifier circuits
Motor and Heating Control
- SCR DC motor control switching circuits
- TRIAC AC motor control and heating switching circuits
- Industrial switching circuits as a whole
Troubleshooting and Review
- Systems troubleshooting across every circuit type above
- Timed practice on the C-306 practice test
The logic is straightforward: instruments and devices come first because everything else is measured and built from them, and troubleshooting comes last because it draws on all the other topics. For a fast refresher near exam day, use the C-306 cheat sheet.
Who Values This Credential
The skills behind C-306 map to roles where people install, maintain, and repair industrial electronic equipment: motor drives, power conversion hardware, and heating controls. Candidates typically come from technical programs at SACA member colleges or from employers who are SACA industry members. We have not verified salary figures tied to this credential, so we avoid quoting any. For discussion of how it may fit into a career path, see C-306 Jobs, C-306 Salary Guide, and Is the C-306 Certification Worth It?. If you are weighing a program, C-306 Training outlines your preparation options.
When you are ready to test your recall of the topics above, our main practice test site offers questions organized around these same areas.
Frequently Asked Questions
C-306 identifies the SACA micro-credential for Industrial Electronic Systems 2. It covers industrial electronic switching circuits, including motor control, switching power supplies, and heating applications, along with the testing and troubleshooting skills around them.
The Smart Automation Certification Alliance (SACA) issues it. Testing is delivered through the SACA online testing portal and arranged through SACA Authorized Testing Centers, and electronic certificates are issued through the portal.
Silver requires a proctored written knowledge exam. Gold requires the same-topic Silver credential plus a successful hands-on assessment on SACA-approved equipment with an authorized Gold proctor.
SACA requires no particular preparation course. Some providers attach their own conditions, such as Athens Technical College's listing that specifies related Amatrol course completion, but those are local arrangements rather than universal SACA prerequisites.
SACA's linked Gold and Silver process document, dated March 19, 2021, allows retaking a failed written exam after 24 hours. Confirm current policy with your testing provider, since certifications undergo annual review.