ITW1205SA DC DC Converter 5V 1W Equivalent & Substitute Parts

Part Overview

The ITW1205SA is an isolated module DC DC converter manufactured by XP Power, designed for commercial ITE applications. This 1W converter accepts input voltage between 9V and 18V, delivering a regulated 5V output at 200mA maximum current with 1.5kV isolation. The part is currently active in production with RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable, while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

ITW1205SA

XP PowerIn Stock: 1066ITW1205SA Datasheet

Current PartRFQ

SPA01A-05

MEAN WELL USA Inc.In Stock: 1103SPA01A-05 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ITW1205SA is determined by matching the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Input voltage range: 9V to 18V minimum and maximum
• Output voltage: 5V
• Output current capacity: 200mA or greater
• Power rating: 1W
• Isolation voltage: 1.5kV
• Efficiency: 77% or greater

Mechanical Compatibility Criteria:

• Mounting type: Through Hole
• Package type: 6-SIP Module, 4 Leads
• Physical dimensions: Compatible with 17.0mm x 7.6mm x 11.0mm footprint tolerance
• Operating temperature range: -40°C minimum to 85°C minimum maximum

Compliance Criteria:

• RoHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)

Parts meeting all criteria within these parameter ranges are classified as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

ITW1205SA (XP Power)

The ITW1205SA is the primary part specification. It is active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. This part is suitable for all applications requiring the specified electrical and thermal parameters within the -40°C to 85°C operating range.

SPA01A-05 (MEAN WELL USA Inc.)

The SPA01A-05 is a direct substitute meeting all critical electrical parameters. It provides identical input voltage range, output voltage, output current, power rating, isolation voltage, and efficiency. The physical dimensions are within compatible tolerance of the ITW1205SA footprint. The SPA01A-05 extends the maximum operating temperature to 90°C with derating, providing additional thermal margin. Both parts carry RoHS3 compliance and unlimited moisture sensitivity rating. The SPA01A-05 includes additional protection features (OCP in addition to SCP) compared to the ITW1205SA.

Selection between these parts is based on availability and application-specific thermal requirements. Both parts are suitable for ITE commercial applications within their respective operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can the SPA01A-05 be used as a direct replacement for the ITW1205SA in existing designs?

A: Yes. The SPA01A-05 meets all electrical specifications of the ITW1205SA, including input voltage range (9V-18V), output voltage (5V), output current (200mA), power rating (1W), and isolation voltage (1.5kV). The 6-SIP Module, 4-lead package and through-hole mounting are identical. Physical dimensions are compatible within standard PCB layout tolerances.

Q: Are there differences in protection features between these parts?

A: The ITW1205SA includes SCP (Short Circuit Protection). The SPA01A-05 includes both OCP (Over Current Protection) and SCP (Short Circuit Protection), providing additional protection capability.

Q: What is the impact of the extended operating temperature range of the SPA01A-05?

A: The SPA01A-05 operates to 90°C maximum with derating, compared to the ITW1205SA at 85°C. This provides additional thermal margin for applications operating near the upper temperature limit. Both parts maintain the same -40°C minimum operating temperature.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the ITW1205SA and SPA01A-05 are RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Q: What are the physical dimension differences?

A: The ITW1205SA measures 17.0mm L x 7.6mm W x 11.0mm H. The SPA01A-05 measures 17.4mm L x 7.8mm W x 11.1mm H. These dimensions are compatible for standard through-hole PCB applications with typical component spacing.

Q: Can these parts be used interchangeably in new designs?

A: Yes. Both parts meet the same electrical and mechanical specifications for 1W isolated DC DC conversion with 9V-18V input and 5V output. Selection can be based on availability and supplier preference.