PKB5113WPIHS Equivalent & Substitute Parts

Part Overview

The PKB5113WPIHS is an isolated module DC-DC converter manufactured by Flex Power Modules, designed to deliver 12V at 10A output from an 18V to 75V input range with 120W power capacity. This component is classified as obsolete, necessitating identification of active alternative models that maintain functional compatibility for existing applications in ITE (Commercial) environments. Substitute parts must preserve the 12V output voltage, isolated topology, and through-hole mounting characteristics while accommodating the input voltage range and power requirements of the target application.

Key Parameters

Parameter	PKB5113WPIHS
Manufacturer	Flex Power Modules
Product Status	Obsolete
Type	Isolated Module
Output Voltage	12V
Output Current (Max)	10A
Power Rating	120W
Input Voltage Range	18V - 75V
Isolation Voltage	2.25 kV
Operating Temperature	-40°C ~ 110°C
Efficiency	91.5%
Package / Case	Eighth Brick
Mounting Type	Through Hole
Dimensions	2.30" L x 0.90" W x 0.50" H
Control Features	Enable, Active Low
RoHS Status	ROHS3 Compliant
Standard Compliance	IEC 62368-1

Substitute Part Grouping Explanation

Substitution of the PKB5113WPIHS is determined by the following critical parameters:

Output Voltage Requirement: All substitute parts must deliver 12V output to maintain circuit compatibility.

Input Voltage Range Compatibility: The PKB5113WPIHS accepts 18V to 75V input. Substitute parts are grouped based on their input voltage specifications:

Lower Input Range (18V - 36V): PKB2213DPIHS
Higher Input Range (36V - 75V): PKB4113CPIHS, PKB4213DPI

Isolated Topology: All substitutes maintain galvanic isolation with 2.25 kV or higher isolation voltage, preserving safety and noise immunity characteristics.

Package and Mounting: All substitutes use Eighth Brick package format with through-hole mounting, ensuring mechanical and electrical interface compatibility.

Regulatory Compliance: All substitutes maintain ROHS3 compliance and IEC 62368-1 certification, meeting the same safety and environmental standards as the original part.

Control Interface: All substitutes feature Enable control with Active Low logic, matching the original control scheme.

Parameter Comparison

Parameter	PKB5113WPIHS	PKB2213DPIHS	PKB4113CPIHS	PKB4213DPI
Product Status	Obsolete	Active	Active	Active
Output Voltage	12V	12V	12V	12V
Output Current (Max)	10A	20A	12A	22A
Power Rating	120W	240W	144W	264W
Input Voltage (Min)	18V	18V	36V	36V
Input Voltage (Max)	75V	36V	75V	75V
Isolation Voltage	2.25 kV	2.25 kV	1.5 kV	2.25 kV
Operating Temperature	-40°C ~ 110°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
Efficiency	91.5%	95.5%	93%	95.4%
Package / Case	Eighth Brick	Eighth Brick	Eighth Brick	Eighth Brick
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Control Features	Enable, Active Low	Enable, Active Low	Enable, Active Low	Enable, Active Low
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Standard Compliance	IEC 62368-1	IEC 62368-1	IEC 62368-1	IEC 62368-1

Engineering Selection Recommendations

For Applications with 18V to 36V Input Range:

The PKB2213DPIHS is the appropriate substitute when the input voltage does not exceed 36V. This part is active in production, offers higher output current capacity (20A versus 10A), and delivers superior efficiency (95.5% versus 91.5%). The extended operating temperature range (-40°C to 125°C) provides additional thermal margin compared to the original part. Isolation voltage remains at 2.25 kV, maintaining the safety characteristics of the original design.

For Applications with 36V to 75V Input Range:

Two active alternatives exist for higher input voltage applications:

The PKB4113CPIHS provides a direct power upgrade (144W versus 120W) with 12A output current capacity. This part maintains the adjustable output and remote sense features of the original PKB5113WPIHS, supporting applications requiring output voltage trimming. Isolation voltage is reduced to 1.5 kV, which remains compliant with IEC 62368-1 standards.

The PKB4213DPI offers the highest power capacity (264W) and output current (22A) among available substitutes. This part delivers the highest efficiency (95.4%) and maintains 2.25 kV isolation voltage matching the original specification. The reduced height (0.38" versus 0.50") may provide space advantages in compact designs.

All three substitute parts maintain active production status, ROHS3 compliance, and IEC 62368-1 certification, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can the PKB2213DPIHS replace the PKB5113WPIHS in all applications?

A: The PKB2213DPIHS is suitable only for applications where the input voltage remains within 18V to 36V. The original PKB5113WPIHS accepts input voltages up to 75V. If the application requires operation above 36V input, the PKB4113CPIHS or PKB4213DPI must be selected.

Q: What is the significance of the isolation voltage difference between PKB4113CPIHS (1.5 kV) and the original part (2.25 kV)?

A: Both isolation voltages comply with IEC 62368-1 safety standards for the ITE (Commercial) application category. The 1.5 kV isolation of the PKB4113CPIHS is sufficient for the specified application class. Selection between 1.5 kV and 2.25 kV isolation depends on the specific system architecture and safety requirements of the end application.

Q: Are all substitute parts mechanically compatible with the original PCB layout?

A: All substitute parts use the Eighth Brick package format with through-hole mounting. Dimensional variations exist: PKB2213DPIHS measures 2.30" L x 0.89" W x 0.52" H, PKB4113CPIHS measures 2.30" L x 0.89" W x 0.50" H, and PKB4213DPI measures 2.30" L x 0.89" W x 0.38" H. The length and width are consistent across all parts. Height differences may require PCB layout verification, particularly for applications with tight vertical clearance constraints.

Q: Do all substitute parts support the same control interface as the PKB5113WPIHS?

A: Yes. All substitute parts feature Enable control with Active Low logic, matching the original control scheme. The PKB4113CPIHS and PKB4213DPI additionally support adjustable output and remote sense features, providing enhanced functionality compared to the original part.

Q: What is the inventory status of substitute parts?

A: PKB2213DPIHS: 1113 pieces in stock. PKB4113CPIHS: 796 pieces in stock. PKB4213DPI: 1328 pieces in stock. All substitute parts are available as new original components.

Q: How do the efficiency ratings of substitute parts compare to the original?

A: The PKB5113WPIHS operates at 91.5% efficiency. All substitute parts deliver higher efficiency: PKB2213DPIHS at 95.5%, PKB4113CPIHS at 93%, and PKB4213DPI at 95.4%. Higher efficiency reduces thermal dissipation and improves overall system power budget performance.

Q: Are all parts compliant with current environmental and safety regulations?

A: Yes. All parts, including the obsolete PKB5113WPIHS and all active substitutes, are ROHS3 compliant and REACH unaffected. All substitute parts maintain active production status and current certification to IEC 62368-1, ensuring regulatory alignment for new designs and ongoing support.

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