Used Advanced Energy APEX RF Generator: Pricing, Failure Modes, and What to Inspect

This guide is for: someone buying a used Advanced Energy APEX RF generator for a plasma etch or deposition system, and wants to avoid getting stuck with a dead brick and a bill for repairs.

A few weeks ago, I got a call from a customer who bought a used Advanced Energy APEX 3013 off a second-hand broker. It looked good on paper: 13.56 MHz, 1.5 kW, 24VDC power supply, and a "certified" sticker. He paid $12,500. It didn’t power up. Turned out the IGBT was fried and the power supply had a blown fuse. He ended up paying another $4,500 to fix it. I've seen this happen more times than I can count.

Let me be clear: used RF generators are not a bad idea. But if you don’t know what to look for, you’re wasting your time and your money.

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Should I Buy a Used Advanced Energy APEX 3013 or 3015?

It depends on your budget and your system. The APEX 3013 is the most common model in the APEX series, with 1.5 kW output and a 13.56 MHz frequency. It's often used in etch and deposition tools. The 3015 is similar but can go up to 3 kW. Both are rugged, but the 3013 is more widely available on the secondary market.

In the last year, I've sold between 15 and 20 used APEX 3013s. Prices have dropped in the last 12 months as newer models like the AE Navigator series gain traction. You can expect to pay between $8,000 and $14,000, depending on condition, test history, and whether it includes the power supply.

The 3015 is a bit pricier, usually $10,000 to $17,000, but again, it depends on the system it came out of and the age of the unit.

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What’s the Failure Rate on Used APEX RF Generators?

I’ve handled over 300 used RF generators in the last five years. Of those, about 25% had major internal failures that required component-level repair or replacement. The most common failure points are:

• IGBT (Insulated Gate Bipolar Transistor): These are the workhorses of the RF generation. If they fail, you get no output, and they’re not cheap to replace.
• Capacitor Bank: Over time, capacitors dry out or leak. This leads to instability and eventual failure.
• Power Supply (PSU): The PSU is often underrated. If it’s been abused or overheated, it can fail suddenly.
• RF Output Connector: Corrosion or physical damage here can lead to mismatch and arcing, which then burns out the IGBT.
• Cooling Fans: These can get clogged with dust or stop altogether. Overheating is a death sentence for IGBTs.

I’ve also seen a surprising number of units where the problem wasn’t the generator at all—it was the Advanced Energy Navigator RF Match or the load. But that’s a whole different can of worms.

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What to Inspect When You Look at a Used APEX RF Generator

You're not buying a toaster. You need to inspect this like you would a used car. Here’s what to check:

1. Power-up test with load connected. It should run for at least 10 minutes with no error codes. If it trips immediately, or if you get a "high temp" error, that’s a red flag.
2. Check the IGBT heatsink. Look for discoloration or warping. If it looks cooked, the IGBT probably is too.
3. Inspect the power supply. Check for bulging or leaking capacitors, especially near the DC bus.
4. Look at the RF output connector. No corrosion, no damage. If the connector is pitted, you’re going to have issues.
5. Check the cooling system. Make sure the fans spin freely and aren’t full of dust.
6. Review the service history. If the unit has a log of recent repairs or part replacements, that’s a good sign. If it’s been left untouched for years, that’s a bad sign.

If you don’t have the expertise to do these checks, bring in a qualified technician. It's not worth the risk to skip this step.

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Used RF Generator: Repair or Replace?

Let’s say you bought the generator and it’s not working. Now what?

If it’s a known issue—like a bad IGBT or a blown fuse—it might be worth fixing. A new IGBT can run you $1,500 to $2,500, plus labor. But if you find multiple issues—bad capacitors, failed PSU, and a cooked IGBT—you might be looking at $4,000 to $6,000 in repairs. That’s often more than the value of the used unit.

Compare the repair cost to what a working used unit would cost. If the math doesn’t add up, walk away.

Check out our used RF generator repair vs. replace blog for more on this.

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5 FAQs You Should Be Asking

1. What is a used Advanced Energy APEX RF generator used for?
They're used in plasma etch and deposition systems, like those from Lam Research or Applied Materials. They generate the RF energy needed to sustain the plasma.

2. How much does a used Advanced Energy APEX 3013 RF generator cost?
Between $8,000 and $14,000, depending on condition and included components.

3. What are the most common issues with used APEX RF generators?
IGBT failure, capacitor degradation, and power supply issues are the top three. Cooling system failures are also common.

4. Can I test a used APEX RF generator myself?
You can do a basic power-up test, but a full diagnostic requires specialized test equipment. It's best to bring in a qualified technician.

5. Is it worth fixing a used APEX RF generator?
It depends. If the cost to repair is less than what a working unit would cost, it might be worth it. Otherwise, save the money and get a unit in better shape.

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What You Should Do Next

1. Define your system requirements. What power level do you need? What frequency? What’s the load?
2. Set a realistic budget. Used APEX generators typically cost between $8,000 and $17,000, depending on model and condition.
3. Ask for a full inspection report. Don’t buy blind. Know what you're getting.
4. Request a power-up test. If it can’t run for 10 minutes without error, walk.
5. Have a qualified technician evaluate the unit. You’re not just buying hardware—you’re buying reliability.

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Related reading: Used RF Generator Repair vs. Replace | How to Test a Used RF Generator

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Last updated: May 2026. Information on semiconductor equipment availability and pricing reflects current secondary market conditions.

Page last reviewed May 2026. Pricing and availability reflect current 2026 secondary market conditions.