COHERENT 355-23-250 Avia Laser Power Supply L219

( Brand: Coherent ), ( Manufacturer Part Number: 355-23-250 ), ( Part Type: Laser Supply ), ( Country Of Origin: United States )

Review COHERENT Avia Laser Power Supply #l219

The **Coherent Avia 355-23-250 L219 Laser Power Supply** is a high-performance, industrial-grade power module meticulously engineered to deliver precise and reliable energy to Coherent s Avia series of solid-state lasers, particularly those operating at 355 nm (triple-frequency Nd:YAG or diode-pumped solid-state configurations). Designed for demanding applications in materials processing, micromachining, medical devices, and advanced manufacturing, this power supply exemplifies robustness, efficiency, and adaptability in environments where consistency and durability are paramount. The L219 model is optimized for high-average-power laser systems, offering a stable output of up to **250 watts** of electrical power with exceptional linearity and low ripple, ensuring minimal thermal drift and optimal beam quality. Its modular architecture allows for seamless integration into larger laser systems, accommodating a wide range of pulse durations, repetition rates, and energy levels while maintaining compliance with stringent industrial and safety standards.

At the core of its functionality lies a sophisticated **closed-loop feedback system**, which dynamically adjusts power delivery in real-time to compensate for variations in load, ambient temperature, or electrical fluctuations. This intelligent regulation not only extends the lifespan of both the power supply and the connected laser but also enhances the precision of cutting, drilling, or welding operations by minimizing inconsistencies in energy output. The unit s **digital control interface** provides users with granular monitoring and adjustment capabilities via a user-friendly front panel or through optional communication protocols such as RS-232 or Ethernet, enabling seamless integration into automated production lines or remote control setups. Additionally, the power supply is equipped with **overcurrent, overvoltage, and overtemperature protection circuits**, ensuring operational safety even under adverse conditions.

Constructed from high-grade materials, the L219 features a **compact yet rugged enclosure** with reinforced cooling fins and a fan-assisted heat dissipation system, allowing for efficient thermal management even during prolonged operation. Its **galvanic isolation** and EMI/RFI shielding ensure compliance with international electromagnetic compatibility (EMC) standards, making it suitable for deployment in sensitive environments where interference could compromise performance. The power supply s **wide input voltage range** (typically 85 264 VAC) further enhances its versatility, accommodating global electrical infrastructures without the need for additional voltage converters. Whether deployed in a cleanroom, a high-precision laboratory, or an industrial manufacturing floor, the Coherent Avia 355-23-250 L219 power supply stands as a testament to engineering excellence, delivering the reliability and performance required to push the boundaries of laser-based innovation.

### **Pros and Cons of buying a Coherent 355-23-250 Avia Laser Power Supply (L219)**

#### **Pros**

1. **High Power and Efficiency** The unit delivers **230W of output power** with a **250W input**, making it suitable for high-performance laser systems, particularly in industrial, medical, or scientific applications. Its efficiency (around 92%) reduces energy waste and operational costs.

2. **Compact and Modular Design** The Avia series is known for its **space-saving form factor**, which is beneficial for installations where floor or rack space is limited. The modular nature allows for easier integration into existing setups.

3. **Reliability and Durability** Coherent is a well-established brand in laser technology, and this power supply is designed for **long-term stability**. It includes features like **overvoltage protection, short-circuit protection, and thermal management** to prevent damage from misuse or environmental factors.

4. **Compatibility with Coherent Lasers** This power supply is **specifically engineered for Coherent s Avia laser systems**, ensuring optimal performance and compatibility. It supports **230V output**, which is standard for many industrial and medical lasers.

5. **Regulated Output** The unit provides a **stable, regulated power output**, which is critical for maintaining consistent laser performance. This is particularly important in applications requiring precision, such as **micromachining, medical surgery, or spectroscopy**.

6. **Low Noise and EMI Shielding** Coherent power supplies are designed with **electromagnetic interference (EMI) suppression**, reducing potential interference with sensitive electronics in the same environment.

7. **Warranty and Support** Coherent offers **extended warranty options** and **technical support**, which can be valuable for large-scale or mission-critical applications where downtime is costly.

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#### **Cons**

1. **High Initial Cost** Like most high-quality industrial power supplies, the **355-23-250 Avia** is **expensive**, especially when compared to generic or lower-end alternatives. The price may be a barrier for small businesses or research labs with tight budgets.

2. **Limited Customization** The power supply is **not user-reconfigurable** in terms of voltage or current settings. If your application requires different specifications, you may need a different model or additional components.

3. **Dependence on Coherent Ecosystem** Since this is a **Coherent-specific** unit, replacing or repairing it may require **authorized service centers**, which could lead to longer downtimes or higher maintenance costs compared to more universal power supplies.

4. **Potential for Overkill in Low-Demand Applications** If your laser system rarely operates near its **230W maximum**, the power supply may be **underutilized**, making the investment less cost-effective.

5. **Weight and Installation Complexity** While compact, the unit is still **heavier than some consumer-grade power supplies**, requiring proper mounting and cooling considerations. Improper installation could lead to **thermal issues or mechanical failures**.

6. **No Built-in Monitoring (Basic Model)** Some higher-end versions of Coherent power supplies include **remote monitoring and control**, but the **L219 may lack advanced diagnostics**, requiring manual checks for performance issues.

7. **Spare Parts Availability** If the unit fails, **replacement parts may not be readily available** from third-party suppliers, forcing reliance on Coherent s supply chain.

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### **Conclusion**

The **Coherent 355-23-250 Avia Laser Power Supply (L219)** is a **high-quality, reliable, and efficient** solution for applications requiring **stable, high-power laser operation**. It excels in **industrial, medical, and scientific settings** where precision and durability are critical. However, its **high cost, limited customization, and dependency on Coherent s ecosystem** make it less ideal for **budget-conscious or low-demand applications**.

If you are working with **Coherent lasers, need long-term reliability, and can justify the investment**, this power supply is an excellent choice. For **cost-sensitive or flexible applications**, alternatives such as **universal industrial power supplies or lower-power Coherent models** may be more appropriate.

### **Recommendation**

- You are using **Coherent Avia lasers** and need a **high-performance, stable power supply**.

- Your application demands **high efficiency and reliability** (e.g., industrial machining, medical lasers, research labs).

- You can **afford the premium price** and require **long-term support**.

- You need **lower power output** (e.g.,

- Your setup is **not Coherent-specific**, and you prefer **more universal power supplies**.

- You require **easier customization or third-party support**.

For most **high-end laser applications**, the **355-23-250 Avia remains a strong recommendation** due to its **proven performance and brand reliability**. However, always **compare with current market prices and alternative models** before finalizing the purchase.

Details:

Item is warranted to be as specified in the above details, and good working order unless stated that its condition unknown. Please refer to pictures are actual!, Included. Not Included: No manual.

No accessories. Used COHERENT AVIA 355-23-250 LASER POWER SUPPLY. No software are included with any systems. Warranty, if any, pertains to the physical operating condition of unit only.

Box or APO/FPO address. Please commit to buy only after you decided purchase are ready pay.

part #: 35523250 prices

• $1600.00-$8135.00

specifications industrlasemr:

• brand: Coherent
• mpn: 355-23-250
• part type: Laser Supply
• country of origin: United States

returns industrlasemr:

• policy: No Returns

seller industrlasemr:

• city: San Jose, California
• rating: 100.0%
• # reviews: 1744

general industrlasemr:

• condition: For parts or not working
• Medical/Lab Equipment Attachments Accessories > Lamps, Bulbs Laser Components > Laser Modules Heads

offer industrlasemr:

• options: Ship-to-home
• started: March 29, 2026
• best offers: True
• availability: In Stock
• sold: 0
• quantity: 1

shipping industrlasemr:

• service: Standard
• class: Standard
• type: Fixed
• transit: 4-8 Days
• cost: $150.00

payments industrlasemr:

• wallet: Paypal
• other
• credit card: Diners-club

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