PSK-3D-15 AC/DC Converter Equivalent & Substitute Parts

Part Overview

The PSK-3D-15 is an enclosed AC/DC converter manufactured by CUI Inc., rated for 15V output at 200mA with 3W power capacity. This single-output converter accepts wide-range AC input (85–305 VAC) and DC input (100–430 VDC), making it suitable for household appliances and commercial ITE applications. The product is Active status and ROHS3 compliant with CE and cURus certifications.

Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity. Substitutes must maintain electrical performance within specified tolerances and mechanical compatibility with the application environment.

Substiute Parts

PSK-3D-15

CUI Inc.In Stock: 935PSK-3D-15 Datasheet

Current PartRFQ

RAC03-15SGB

Recom PowerIn Stock: 3101RAC03-15SGB Datasheet

SimilarRFQ

LD03-23B15R2

Mornsun America, LLCIn Stock: 929LD03-23B15R2 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PSK-3D-15 are identified based on strict electrical and mechanical parameter matching:

Primary Substitution Criteria:

• Output voltage: 15V
• Output current capacity: 200mA minimum
• Power rating: 3W
• Input voltage range: 85–305 VAC minimum (DC input optional)
• Operating temperature: −40°C to +85°C
• Mounting: Through Hole
• Regulatory compliance: CE and cURus certifications

Substitute Classification:

Direct Parametric Equivalent (LD03-23B15R2): Matches all electrical specifications including dual AC/DC input capability, identical output voltage and current, matching efficiency (79%), and identical package footprint (5-DIP, 4 Leads). Dimensions are identical. Certifications include CB, CE, and cURus. This part is a full parametric equivalent.

Functional Equivalent (RAC03-15SGB): Matches core electrical specifications (15V output, 200mA, 3W, AC input 85–305 VAC) and certifications (CE, cURus). Differs in package type (16-DIP Module, 5 Leads vs. 5-DIP, 4 Leads), dimensions (1.46" L × 0.94" W × 0.59" H), and load regulation (±0.5% vs. ±1%). Lacks DC input capability. Suitable for applications where package footprint change is acceptable.

Parameter Comparison

Engineering Selection Recommendations

LD03-23B15R2 (Mornsun America, LLC): This part is the primary substitute for the PSK-3D-15. It provides identical electrical performance, matching output specifications, efficiency, and regulation characteristics. The package footprint and lead configuration are identical, enabling direct board-level substitution without layout modification. The LD03-23B15R2 includes CB certification in addition to CE and cURus, providing broader international compliance coverage. Both AC and DC input capabilities are supported. All three parts maintain Active product status and ROHS3 compliance.

RAC03-15SGB (Recom Power): This part is a functional equivalent suitable for applications where package footprint changes are acceptable. It maintains all critical electrical specifications (15V, 200mA, 3W, AC input 85–305 VAC) and required certifications (CE, cURus). The RAC03-15SGB features improved load regulation (±0.5% vs. ±1%), which may benefit precision applications. The larger package footprint (1.46" L × 0.94" W × 0.59" H) and different lead configuration (16-DIP, 5 Leads) require PCB layout modification. The absence of specified DC input capability restricts use to AC-only input applications. This part is suitable for new designs or applications with available board space.

All three parts are Active status, ROHS3 compliant, and carry required safety certifications. Selection depends on whether identical package footprint is required or whether layout modification is feasible.

Frequently Asked Questions (FAQ)

Q: Can the LD03-23B15R2 replace the PSK-3D-15 without PCB modification?

A: Yes. The LD03-23B15R2 has identical package type (5-DIP Module, 4 Leads) and dimensions (1.00" L × 1.00" W × 0.69" H). Direct substitution on the PCB is possible without layout changes.

Q: What is the key difference between the RAC03-15SGB and the PSK-3D-15?

A: The RAC03-15SGB uses a larger package (16-DIP Module, 5 Leads) with different dimensions (1.46" L × 0.94" W × 0.59" H). PCB layout modification is required. Additionally, the RAC03-15SGB does not specify DC input capability, limiting it to AC-only applications.

Q: Are all three parts certified for the same applications?

A: All three parts carry CE and cURus certifications. The LD03-23B15R2 includes additional CB certification. All are suitable for household appliances and commercial ITE applications within the specified operating temperature range (−40°C to +85°C with derating).

Q: Which substitute has the best load regulation?

A: The RAC03-15SGB provides ±0.5% load regulation, compared to ±1% for both the PSK-3D-15 and LD03-23B15R2. This improved regulation may be beneficial for sensitive load applications, but requires PCB layout modification.

Q: Can the PSK-3D-15 accept both AC and DC input?

A: Yes. The PSK-3D-15 accepts 85–305 VAC or 100–430 VDC input. The LD03-23B15R2 provides identical dual-input capability. The RAC03-15SGB specifies only AC input (85–305 VAC).

Q: What is the inventory status of these parts?

A: PSK-3D-15: 898 Pcs in stock. LD03-23B15R2: 894 Pcs in stock. RAC03-15SGB: 3039 Pcs in stock. All parts are available as new original stock.

Q: Are there any efficiency differences between the substitutes?

A: The PSK-3D-15 and LD03-23B15R2 both operate at 79% efficiency. The RAC03-15SGB operates at 78% efficiency, a 1% difference that may be relevant in power-constrained applications.

Q: What packaging format is each part supplied in?

A: PSK-3D-15 is supplied in Tray packaging. LD03-23B15R2 is supplied in Tray packaging. RAC03-15SGB is supplied in Tube packaging. Packaging format may affect handling and storage requirements.