Equivalent & Substitute Parts for ISK1205A

Part Overview

ISK1205A, manufactured by XP Power, is an isolated module DC-DC converter designed to provide a single 5V output (50mA max), suitable for commercial ITE applications. With a product status of “Obsolete”, it is necessary to identify alternative models to ensure continued availability and design compatibility for affected systems. Substitution is evaluated strictly according to specified electrical, mechanical, and compliance parameters.

Key Parameters

Manufacturer Part Number	Manufacturer	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Operating Temperature	Efficiency	Number of Outputs	Mounting Type	Package / Case	Size / Dimension	RoHS Status	Product Status	Applications
ISK1205A	XP Power	10.8V	13.2V	5V	50mA	250 mW	1.5 kV	-40°C ~ 105°C	79%	1	Surface Mount	8-SMD Module, 5 Leads	0.50" x 0.33" x 0.29"	ROHS3 Compliant	Obsolete	ITE (Commercial)

Substitute Part Grouping Explanation

Substitute parts for ISK1205A are identified solely on the basis of matching:

Input voltage range (10.8V to 13.2V)
Output voltage (5V)
Number of outputs (1)
Isolation voltage (1.5 kV)
Mounting type and package/case
Operating temperature range
RoHS compliance
Application category (ITE Commercial)

Only parts meeting these parameters with equivalent or improved performance and matching form factor are considered valid substitutes.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Voltage - Input (Min)	Voltage - Input (Max)	Voltage - Output	Current - Output (Max)	Power (Watts)	Voltage - Isolation	Operating Temperature	Efficiency	Number of Outputs	Mounting Type	Package / Case	Size / Dimension	RoHS Status	Product Status	Applications
ISK1205A	XP Power	10.8V	13.2V	5V	50mA	250 mW	1.5 kV	-40°C ~ 105°C	79%	1	Surface Mount	8-SMD Module, 5 Leads	0.50" x 0.33" x 0.29"	ROHS3 Compliant	Obsolete	ITE (Commercial)
IES0112S05	XP Power	10.8V	13.2V	5V	200mA	1 W	1.5 kV	-40°C ~ 105°C (With Derating)	82%	1	Surface Mount	8-SMD Module, 5 Leads	0.52" x 0.33" x 0.29"	ROHS3 Compliant	Active	ITE (Commercial)

Engineering Selection Recommendations

Engineering substitution is supported due to the obsolete status of ISK1205A and the active status of IES0112S05. Both parts are ROHS3 Compliant. IES0112S05 provides matching input/output voltages, number of outputs, isolation voltage, mounting type, and package form factor, with additional certifications (CE, UKCA, UL). Size difference is minimal and maintains similar footprint.

Frequently Asked Questions (FAQ)

Q1: What criteria determine compatibility for DC-DC converter substitutes?
A1: Compatibility is based on matching input voltage range, output voltage, output current capacity (must be equal or greater), number of outputs, isolation voltage, mounting type, package/case, application category, and RoHS status.

Q2: Can IES0112S05 directly replace ISK1205A in existing designs?
A2: IES0112S05 matches ISK1205A in electrical and mechanical parameters, including footprint and output specification, and is suitable for substitution in designs requiring these characteristics.

Q3: Are there dimensional or installation differences between ISK1205A and IES0112S05?
A3: The size of IES0112S05 is marginally larger in length (0.52" vs 0.50"), but retains the same width and height; mounting type and pin configuration are identical.

Q4: Is RoHS compliance maintained with the recommended substitute?
A4: Both ISK1205A and IES0112S05 are ROHS3 Compliant.

Q5: Are additional certifications relevant for engineering substitutions?
A5: IES0112S05 includes application approvals not listed for ISK1205A (CE, UKCA, UL), which may be relevant for regulatory requirements within specific projects.

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