IL4812S Equivalent & Substitute Parts Reference

Part Overview

The XP Power IL4812S is an isolated DC-DC converter delivering a 12V output at up to 168mA, rated for 2W power handling. The component is an isolated module in a 4-SIP package for through-hole board mounting and supports a 43.2V to 52.8V input range. With an obsolete status, sourcing direct replacements may be required for ongoing production or maintenance. Selecting alternative models is necessary to maintain electrical and mechanical compatibility when the IL4812S is unavailable.

Substiute Parts

IL4812S

XP PowerIn Stock: 1281IL4812S Datasheet

Current PartRFQ

TRI 3-4812

Traco PowerIn Stock: 984TRI 3-4812 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute DC-DC converter modules are selected exclusively on the following parameters: module type (Isolated Module), number of outputs (1), primary output voltage (12V), input voltage range (must fully cover application requirements), maximum output current, output power capability, voltage isolation rating, mounting style (Through Hole), package/case format, RoHS compliance, and operating temperature range. Substitutes are grouped only if these explicit criteria match or exceed those of the IL4812S.

Parameter Comparison

Engineering Selection Recommendations

The IL4812S is classified as obsolete. The TRI 3-4812 is currently active and is ROHS3 compliant; both devices are through-hole mounting types and are isolated module DC-DC converters with a single 12V output, satisfying core compliance attributes. The TRI 3-4812 further includes an expanded operating temperature range, input voltage window, output power, and isolation rating. The package/case format differs; this consideration must align with PCB layout and mechanical design.

Frequently Asked Questions (FAQ)

Q1: What is a key requirement when selecting a substitute for the IL4812S?
A1: The substitute DC-DC converter must be an isolated module with a single 12V output, compatible input voltage range, equivalent or higher output current, and through-hole mounting.

Q2: Are there package differences between the IL4812S and TRI 3-4812?
A2: Yes. The IL4812S uses a 4-SIP Module, while the TRI 3-4812 uses a 24-DIP Module, 5 Leads. Mechanical compatibility with PCB footprint must be considered.

Q3: What compliance statuses should substitutes match?
A3: Substitutes must match or exceed the RoHS3 compliance status of the IL4812S.

Q4: Is the TRI 3-4812 output voltage suitable for all IL4812S applications?
A4: The primary output voltage for both models is 12V; this matches the specified requirement.

Q5: Do operating temperature ranges between devices affect substitution?
A5: Both devices support -40°C ~ 85°C minimum. The TRI 3-4812 supports a maximum up to 96°C, which exceeds the IL4812S.

Q6: Is product status important in selection?
A6: Yes. The IL4812S is obsolete, while the TRI 3-4812 is active. Ongoing availability favors an active status substitute.

Q7: Is output isolation voltage identical between substitutes?
A7: No. The TRI 3-4812 isolation rating (9 kV) exceeds the IL4812S (1 kV). This exceeds the minimum original requirement.