PKB5113WPI DC DC Converter 12V 120W Equivalent & Substitute Parts

Part Overview

The PKB5113WPI is an isolated module DC DC converter manufactured by Flex Power Modules, designed to deliver 12V output at 10A maximum current from an 18V to 75V input range. This eighth brick form factor converter operates across a wide temperature range of -40°C to 110°C and delivers 120W of power with 91.5% efficiency. The PKB5113WPI is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing system designs and component procurement.

Key Parameters

Parameter	Value
Manufacturer Part Number	PKB5113WPI
Manufacturer	Flex Power Modules
Product Status	Obsolete
Type	Isolated Module
Output Voltage	12V
Output Current (Max)	10A
Input Voltage Range	18V - 75V
Power Rating	120W
Isolation Voltage	2.25 kV
Package / Case	Eighth Brick
Mounting Type	Through Hole
Operating Temperature	-40°C ~ 110°C
Efficiency	91.5%
Control Features	Enable, Active Low
Compliance Standard	IEC 62368-1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the PKB5113WPI is determined by compatibility across the following critical parameters:

Output Voltage Compatibility: All substitute parts maintain the 12V output voltage specification required by the original design.

Isolation Voltage: The PKB5113WPI specifies 2.25 kV isolation. Substitute parts must meet or exceed this isolation requirement to maintain electrical safety and regulatory compliance.

Package Form Factor: All substitute parts utilize the eighth brick form factor with through-hole mounting, ensuring mechanical compatibility with existing PCB layouts and thermal management solutions.

Input Voltage Range: Substitutes are grouped by input voltage capability. The PKB5113WPI accepts 18V to 75V input. Substitute parts are available with overlapping or extended input ranges to accommodate various system architectures.

Control Interface: All substitute parts feature Enable control with Active Low logic, maintaining functional compatibility with existing control circuitry.

Regulatory Compliance: All substitute parts comply with IEC 62368-1 and carry equivalent agency approvals (CB, CSA, IEC, TUV, UL), ensuring regulatory equivalence.

Product Status: Active substitute parts are available for immediate procurement, addressing the obsolescence of the original PKB5113WPI.

Parameter Comparison

Parameter	PKB5113WPI (Main)	PKB2213DPIHS	PKB4113CPI	PKB4213DPI
Manufacturer	Flex Power Modules	Flex Power Modules	Flex Power Modules	Flex Power Modules
Product Status	Obsolete	Active	Active	Active
Type	Isolated Module	Isolated Module	Isolated Module	Isolated Module
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
Package / Case	Eighth Brick	Eighth Brick	Eighth Brick	Eighth Brick
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
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%
Control Features	Enable, Active Low	Enable, Active Low	Enable, Active Low	Enable, Active Low
Compliance Standard	IEC 62368-1	IEC 62368-1	IEC 62368-1	IEC 62368-1
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Approval Agency	CB, CSA, IEC, TUV, UL	CB, CSA, IEC, TUV, UL	CB, CSA, IEC, TUV, UL	CB, CSA, IEC, TUV, UL

Engineering Selection Recommendations

PKB2213DPIHS Selection Criteria: This substitute is appropriate for applications requiring input voltage compatibility between 18V and 36V. The PKB2213DPIHS delivers 240W output power at 20A maximum current, providing increased power capacity over the original PKB5113WPI. The 2.25 kV isolation voltage matches the original specification. Operating temperature range extends to 125°C, and efficiency improves to 95.5%. This part is active and immediately available. Selection of this substitute requires confirmation that the system input voltage does not exceed 36V.

PKB4113CPI Selection Criteria: This substitute is appropriate for applications requiring input voltage between 36V and 75V. The PKB4113CPI delivers 144W output power at 12A maximum current, providing output current capacity exceeding the original 10A specification. The isolation voltage is 1.5 kV, which is lower than the original 2.25 kV specification. Operating temperature range extends to 125°C, and efficiency improves to 93%. This part is active and immediately available. Selection of this substitute requires confirmation that 1.5 kV isolation voltage is acceptable for the application.

PKB4213DPI Selection Criteria: This substitute is appropriate for applications requiring input voltage between 36V and 75V with maximum power delivery. The PKB4213DPI delivers 264W output power at 22A maximum current, providing the highest output capacity among available substitutes. The 2.25 kV isolation voltage matches the original specification. Operating temperature range extends to 125°C, and efficiency improves to 95.4%. This part is active and immediately available. Selection of this substitute requires confirmation that the system input voltage is at least 36V.

Frequently Asked Questions (FAQ)

Q: Can the PKB2213DPIHS directly replace the PKB5113WPI in all applications?

A: The PKB2213DPIHS is mechanically and electrically compatible with the PKB5113WPI for applications where the input voltage does not exceed 36V. The original PKB5113WPI accepts input voltages up to 75V, while the PKB2213DPIHS maximum input is 36V. If the system operates with input voltages between 36V and 75V, the PKB2213DPIHS is not suitable.

Q: What is the significance of the isolation voltage difference between PKB4113CPI and the original PKB5113WPI?

A: The PKB4113CPI specifies 1.5 kV isolation voltage compared to the original 2.25 kV. Isolation voltage determines the maximum voltage difference that can be safely maintained between input and output circuits. Selection of the PKB4113CPI requires confirmation that 1.5 kV isolation meets the application's electrical safety and regulatory requirements.

Q: Are all substitute parts available in the same package dimensions?

A: All substitute parts use the eighth brick form factor with through-hole mounting. Dimensional variations exist: PKB5113WPI measures 2.30" L x 0.90" W x 0.39" H; PKB2213DPIHS measures 2.30" L x 0.89" W x 0.52" H; PKB4113CPI measures 2.30" L x 0.89" W x 0.34" H; PKB4213DPI measures 2.30" L x 0.89" W x 0.38" H. Length and width are consistent across all parts. Height variations may affect thermal management and board layout considerations.

Q: Do all substitute parts maintain the same control interface as the PKB5113WPI?

A: Yes. All substitute parts feature Enable control with Active Low logic, identical to the original PKB5113WPI. Existing control circuitry requires no modification for functional compatibility.

Q: What is the compliance status of substitute parts relative to the original?

A: All substitute parts comply with IEC 62368-1 and carry equivalent agency approvals (CB, CSA, IEC, TUV, UL). All parts are ROHS3 compliant and REACH unaffected. Regulatory equivalence is maintained across all substitutes.

Q: Which substitute part provides the best efficiency improvement?

A: The PKB2213DPIHS and PKB4213DPI both achieve 95.5% and 95.4% efficiency respectively, compared to the original 91.5%. Both represent approximately 4% efficiency improvement. The PKB4113CPI achieves 93% efficiency, representing approximately 1.5% improvement.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: No. Substitute parts have different input voltage ranges and isolation voltage specifications. Selection must be based on the specific system input voltage range and isolation requirements. Interchangeability is not supported across the three substitute options.

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