KPS5-24 Equivalent & Substitute Parts

Part Overview

The KPS5-24 is an open frame AC/DC converter manufactured by TDK-Lambda Americas Inc, designed for single-output 24V applications with 5W power capacity. This model operates from universal input voltage (85–264 VAC) and delivers a maximum output current of 230mA, making it suitable for ITE (Commercial) applications.

The KPS5-24 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or field replacement requirements.

Key Parameters

Parameter	Value
Voltage - Input	85–264 VAC
Voltage - Output	24V
Current - Output (Max)	230mA
Power (Watts)	5W
Type	Open Frame
Mounting Type	Through Hole
Package / Case	4-DIP Module
Operating Temperature	0°C–70°C (With Derating)
Approval Agency	CE, CSA, EN, UL
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitute parts for the KPS5-24 are identified based on the following critical parameters:

Electrical Compatibility:

Output voltage: 24V (fixed requirement)
Input voltage range: 85–264 VAC or compatible universal input
Output current capacity: minimum 230mA
Power rating: 5W or greater

Mechanical Compatibility:

Package type: 4-DIP Module
Mounting type: Through Hole
Form factor: Open Frame

Regulatory & Compliance:

Approval agencies: CE, CSA, UL certifications
RoHS compliance required

The KPS5-24 has two identified substitutes: KPSA5-24 (direct equivalent, active status) and KPSB6-24 (manufacturer-recommended upgrade, active status with enhanced specifications).

Parameter Comparison

Parameter	KPS5-24	KPSA5-24	KPSB6-24
Manufacturer	TDK-Lambda Americas Inc	TDK-Lambda Americas Inc	TDK-Lambda Americas Inc
Product Status	Obsolete	Active	Active
Voltage - Input	85–264 VAC	85–264 VAC	90–264 VAC
Voltage - Output	24V	24V	24V
Current - Output (Max)	230mA	230mA	250mA
Power (Watts)	5W	5W	6W
Type	Open Frame	Open Frame	Open Frame
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	4-DIP Module	4-DIP Module	4-DIP Module
Operating Temperature	0°C–70°C	0°C–70°C	-40°C–80°C
Efficiency	77%	72%	83%
Line Regulation	±0.5%	±0.5%	±1%
Load Regulation	±1%	±1%	±3%
Approval Agency	CE, CSA, EN, UL	CE, CSA, EN, UL	CE, CSA, FCC, UL
RoHS Status	RoHS Compliant	RoHS Compliant	RoHS Compliant

Engineering Selection Recommendations

KPSA5-24 (Direct Equivalent): The KPSA5-24 is the direct functional equivalent to the obsolete KPS5-24. Both models share identical electrical specifications (5W, 24V output, 230mA maximum current, 85–264 VAC input) and mechanical form factor (4-DIP Module, Through Hole). The KPSA5-24 maintains active product status and carries equivalent regulatory certifications (CE, CSA, EN, UL). This part is the primary choice for direct replacement in existing designs without modification.

KPSB6-24 (Manufacturer-Recommended Upgrade): The KPSB6-24 is designated as the manufacturer-recommended substitute. It provides enhanced specifications including increased power capacity (6W versus 5W), higher output current (250mA versus 230mA), improved efficiency (83% versus 77%), and extended operating temperature range (-40°C to 80°C versus 0°C to 70°C). The KPSB6-24 includes FCC certification in addition to CE, CSA, and UL approvals. The input voltage range begins at 90 VAC (versus 85 VAC for the KPS5-24), which may require evaluation in applications requiring operation below 90 VAC. The KPSB6-24 is suitable for designs requiring higher thermal performance or expanded environmental operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the KPSA5-24 be used as a direct replacement for the KPS5-24?

A: Yes. The KPSA5-24 is electrically and mechanically equivalent to the KPS5-24. Both deliver 24V at 230mA maximum output current from 85–264 VAC input, use identical 4-DIP Module packaging, and share Through Hole mounting. The KPSA5-24 is active and available, making it the primary substitute for the obsolete KPS5-24.

Q: What are the key differences between KPSA5-24 and KPSB6-24?

A: The KPSB6-24 offers higher power capacity (6W versus 5W), increased output current capability (250mA versus 230mA), superior efficiency (83% versus 72%), and wider operating temperature range (-40°C to 80°C versus 0°C to 70°C). The KPSB6-24 input voltage range starts at 90 VAC instead of 85 VAC. Load regulation tolerance is wider on the KPSB6-24 (±3% versus ±1%).

Q: Is the KPSB6-24 suitable for applications requiring operation below 90 VAC input?

A: The KPSB6-24 input specification begins at 90 VAC. Applications requiring operation at 85–89 VAC must use the KPS5-24 or KPSA5-24, which support 85 VAC minimum input.

Q: Are all three models (KPS5-24, KPSA5-24, KPSB6-24) RoHS compliant?

A: Yes. All three models carry RoHS Compliant status and meet regulatory requirements for hazardous substance restrictions.

Q: What regulatory certifications apply to each model?

A: KPS5-24 and KPSA5-24 carry CE, CSA, EN, and UL certifications. The KPSB6-24 carries CE, CSA, FCC, and UL certifications, adding FCC approval for electromagnetic compatibility.

Q: Can the KPSB6-24 be used in designs originally specified for the KPS5-24?

A: The KPSB6-24 is electrically compatible (24V output, 250mA capacity exceeds the 230mA requirement). However, the input voltage range difference (90–264 VAC versus 85–264 VAC) and dimensional changes (39.5mm × 19.4mm × 18.3mm versus 55.1mm × 35.1mm × 20.1mm) require design review. The KPSB6-24 is smaller and more efficient, but applications requiring 85–89 VAC operation must use KPSA5-24.

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