Equivalent & Substitute Parts Reference: ISH0509A

Part Overview

The ISH0509A (XP Power) is an isolated module DC-DC converter, providing a single 9V output at up to 222mA from a 4.5V–5.5V input, with 2W power and 1.5kV isolation. This surface mount device is designed for ITE (commercial) applications and includes SCP functionality. The ISH0509A is currently listed as obsolete in distributor inventories. Due to its obsolete status, it is necessary to identify alternative DC-DC converter models that strictly meet the same electrical and mechanical criteria to ensure seamless component replacement in ongoing or legacy designs.

Substiute Parts

ISH0509A

XP PowerIn Stock: 1069ISH0509A Datasheet

Current PartRFQ

PDS2-S5-S9-M-TR

CUI Inc.In Stock: 1683PDS2-S5-S9-M-TR Datasheet

DirectRFQ

B0509XT-2WR3

Mornsun America, LLCIn Stock: 1390B0509XT-2WR3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute models for ISH0509A are selected exclusively based on the following key parameters:

• Number of Outputs: 1
• Voltage - Input Range: 4.5V to 5.5V
• Voltage - Output 1: 9V
• Current - Output (Max): 222mA
• Power (Watts): ≥1.9W
• Voltage - Isolation: 1.5kV
• Application: ITE (Commercial)
• Mounting Type: Surface Mount
• Package / Case: 8-SMD Module, 5 Leads
• Operating Temperature: -40°C ~ 105°C
• Efficiency: minimum 82%

Only substitute parts meeting these criteria are included, ensuring direct compatibility in electrical, thermal, and physical specificities.

Parameter Comparison

Engineering Selection Recommendations

ISH0509A is listed as obsolete. The recommended substitute parts PDS2-S5-S9-M-TR (CUI Inc.) and B0509XT-2WR3 (Mornsun America, LLC) are active products that match the key electrical, mechanical, and environmental parameters. Both substitute models include RoHS and REACH compliance, certification or approval documentation, and maintain similar physical package sizes, enabling direct board-level replacement where required by inventory availability or regulatory documentation.

Frequently Asked Questions (FAQ)

Q1: What are the main criteria for substituting ISH0509A with another DC-DC converter?
A1: Substitution is based strictly on electrical parameters (input/output voltage, current, isolation rating, power), mechanical compatibility (surface mount 8-SMD module, 5 leads), and environmental range (-40°C ~ 105°C).

Q2: Are both substitute parts suitable for the same PCB footprint?
A2: All listed substitutes use the 8-SMD Module, 5 leads package type, matching the mechanical interface and footprint.

Q3: What application standard supports compatibility?
A3: All parts are specified for ITE (Commercial) applications, complying with the intended use-case environment.

Q4: What effect does product status have on selection?
A4: Since ISH0509A is obsolete, only active substitutes (PDS2-S5-S9-M-TR, B0509XT-2WR3) can ensure ongoing procurement and compliance with current regulatory standards.

Q5: Is there a difference in output power or efficiency among the substitutes?
A5: PDS2-S5-S9-M-TR matches the 2W and 82% efficiency; B0509XT-2WR3 provides 1.9W and increased 85% efficiency. All substitutes otherwise maintain the required output current and voltage.

Q6: Are there any differences in regulatory approvals?
A6: Substitute parts include specified approval agencies and compliance standards. For approval and documentation needs, check provided standard numbers for each substitute.