KPS10-24 Equivalent & Substitute Parts Reference

Part Overview

The KPS10-24 is an open frame AC/DC converter manufactured by TDK-Lambda Americas Inc, rated for 10W output power at 24V with 420mA maximum current. This model accepts universal input voltage (85–264 VAC) and is designed for ITE (Commercial) applications. The KPS10-24 is classified as obsolete, making identification of equivalent and substitute parts essential for design continuity, procurement planning, and system maintenance.

Substitute parts are identified based on matching electrical specifications (input voltage range, output voltage, power rating, and current capacity), mechanical compatibility (4-DIP Module package, through-hole mounting), and regulatory compliance (CE, CSA, EN, UL certifications per IEC 60950-1).

Substiute Parts

KPS10-24

TDK-Lambda Americas IncIn Stock: 1130KPS10-24 Datasheet

Current PartRFQ

KPSA10-24

TDK-Lambda Americas IncIn Stock: 908KPSA10-24 Datasheet

DirectRFQ

KPSB25-24

TDK-Lambda Americas IncIn Stock: 1069KPSB25-24 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the KPS10-24 are classified into two categories based on electrical and mechanical compatibility:

Direct Electrical Equivalent (Same Output Voltage & Power Class): The KPSA10-24 maintains identical output voltage (24V) and power rating (10W) within the same manufacturer series. This part is classified as a direct substitute because it preserves the core electrical interface: 24V output, universal input voltage range (85–264 VAC), 4-DIP Module package, through-hole mounting, and identical regulatory certifications. The KPSA10-24 is active in production, addressing the obsolescence of the KPS10-24.

Higher Power Rated Alternative (Increased Current Capacity): The KPSB25-24 is a higher-rated alternative providing 25W output power at 24V with 1.05A maximum current, compared to the KPS10-24's 10W and 420mA. This part is suitable for applications requiring increased power headroom or current capacity while maintaining the same 24V output voltage and 4-DIP Module form factor. The KPSB25-24 features an expanded input voltage range (90–264 VAC), improved efficiency (86% vs. 78%), and extended operating temperature range (-30°C to 60°C).

Substitution Criteria:

• Output voltage must be 24V
• Package type must be 4-DIP Module with through-hole mounting
• Input voltage range must support 85–264 VAC minimum (or 90–264 VAC for KPSB25-24)
• Regulatory certifications must include CE, CSA, and UL per IEC 60950-1
• RoHS compliance required

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred for Obsolescence Resolution): The KPSA10-24 is the recommended substitute for the obsolete KPS10-24. Both parts maintain identical electrical specifications (10W, 24V output, 420mA current capacity, 85–264 VAC input), identical package form factor (4-DIP Module), and equivalent regulatory compliance (CE, CSA, EN, UL per IEC 60950-1). The KPSA10-24 is currently in active production status with 853 units in stock, ensuring procurement availability. Dimensional differences are minor (61.0 × 39.4 × 22.9 mm vs. 65.0 × 45.0 × 23.1 mm), and the part is compatible with existing through-hole PCB layouts. The slight efficiency reduction (75% vs. 78%) is within acceptable operational margins for ITE applications.

For Higher Power Requirement Applications: The KPSB25-24 is suitable when the application requires increased power capacity or current headroom beyond the 10W/420mA specification. This 25W converter provides 1.05A output current at 24V, offering 2.5× the power rating. The KPSB25-24 maintains the same 4-DIP Module package and through-hole mounting compatibility. Enhanced efficiency (86%) and extended operating temperature range (-30°C to 60°C) provide additional operational margin. The KPSB25-24 includes FCC certification in addition to CE, CSA, and UL approvals. Input voltage range is narrower (90–264 VAC vs. 85–264 VAC), which may be a consideration for applications requiring operation at the lower end of the universal input spectrum.

Compliance Verification: All substitute parts maintain RoHS compliance and IEC 60950-1 certification, ensuring regulatory continuity for ITE (Commercial) applications. No additional qualification or testing is required based on provided compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the KPSA10-24 be used as a direct replacement for the KPS10-24 in existing designs?

A: Yes. The KPSA10-24 is electrically and mechanically compatible with the KPS10-24. Both parts provide 24V output at 10W power rating with 420mA maximum current, accept 85–264 VAC input, use the 4-DIP Module package with through-hole mounting, and hold identical regulatory certifications (CE, CSA, EN, UL per IEC 60950-1). Minor dimensional differences (61.0 × 39.4 × 22.9 mm vs. 65.0 × 45.0 × 23.1 mm) do not affect PCB layout compatibility for standard through-hole applications.

Q: What is the primary difference between the KPSA10-24 and KPSB25-24?

A: The KPSB25-24 is rated for 25W output power with 1.05A maximum current, compared to the KPSA10-24's 10W and 420mA. The KPSB25-24 is suitable for applications requiring higher power capacity. Both maintain 24V output voltage and 4-DIP Module form factor. The KPSB25-24 features improved efficiency (86% vs. 75%), extended operating temperature range (-30°C to 60°C vs. 0°C to 70°C), and a narrower input voltage range (90–264 VAC vs. 85–264 VAC).

Q: Is the KPSB25-24 compatible with PCB layouts designed for the KPS10-24?

A: The KPSB25-24 uses the same 4-DIP Module package and through-hole mounting as the KPS10-24, making it mechanically compatible with existing PCB layouts. However, the KPSB25-24 has smaller overall dimensions (50.8 × 27.9 × 24.9 mm), which may provide additional board space. Electrical compatibility is confirmed: both parts accept universal input voltage and provide 24V output. No PCB redesign is required for form factor compatibility.

Q: What is the minimum input voltage for each substitute part?

A: The KPSA10-24 accepts input voltage from 85 VAC to 264 VAC. The KPSB25-24 accepts input voltage from 90 VAC to 264 VAC. Applications requiring operation below 90 VAC must use the KPSA10-24 or original KPS10-24 specification.

Q: Are all substitute parts RoHS compliant?

A: Yes. Both the KPSA10-24 and KPSB25-24 are RoHS compliant and maintain the same compliance status as the original KPS10-24. All parts are suitable for applications subject to RoHS regulations.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring 10W output power at 24V, the KPSA10-24 is the recommended choice due to its active production status and direct electrical equivalence to the KPS10-24. For applications requiring higher power capacity, the KPSB25-24 provides 25W output with improved efficiency and extended temperature range. Both parts are currently in stock and available for procurement.