20IMX4-1515-8Z Equivalent & Substitute Parts

Part Overview

The 20IMX4-1515-8Z is an isolated DC-DC converter module manufactured by Bel Power Solutions, part of the Melcher IMX4 series. This 4W isolated module provides dual output voltages of +15V and -15V with a maximum output current of 140mA per rail. The converter accepts input voltage ranging from 8.4V to 36V and features conformal coating for enhanced environmental protection. The product is currently active in production and widely used in commercial ITE applications requiring isolated power conversion with integrated protection features including overcurrent protection (OCP), overvoltage protection (OVP), overtemperature protection (OTP), and short-circuit protection (SCP).

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging or compliance requirements must be met, or when inventory constraints require sourcing from alternative stock positions.

Substiute Parts

20IMX4-1515-8Z

Bel Power SolutionsIn Stock: 83720IMX4-1515-8Z Datasheet

Current PartRFQ

20IMX4-1515-8G

Bel Power SolutionsIn Stock: 219720IMX4-1515-8G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 20IMX4-1515-8Z is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Input voltage range: 8.4V to 36V (identical)
• Output voltage configuration: +15V and -15V dual output (identical)
• Output current capability: 140mA per rail minimum (identical)
• Power rating: 4W (identical)
• Isolation voltage: 1.5 kV (identical)
• Protection features: OCP, OTP, OVP, SCP (identical)

Mechanical Equivalence Requirements:

• Mounting type: Through Hole (identical)
• Package type: 24-DIP Module (identical)
• Physical dimensions: 33.0mm × 20.1mm × 8.6mm (identical)
• Conformal coating: Present (identical)

Functional Equivalence Requirements:

• Isolated module topology (identical)
• Operating temperature range: -40°C to +85°C (identical)
• Efficiency: 82% (identical)

The substitute part 20IMX4-1515-8Z must maintain identical electrical performance, mechanical form factor, and functional characteristics to ensure direct interchangeability without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

The 20IMX4-1515-8G is a direct electrical and mechanical equivalent to the 20IMX4-1515-8Z. Both parts are manufactured by Bel Power Solutions within the same Melcher IMX4 series and share identical electrical specifications, output configurations, protection features, and physical form factors.

Compliance Consideration: The primary distinction between these parts is regulatory compliance status. The 20IMX4-1515-8Z is RoHS non-compliant, while the 20IMX4-1515-8G is ROHS3 compliant. Selection between these parts must be based on the regulatory requirements of the end application and target market. Applications subject to RoHS3 regulations require the 20IMX4-1515-8G variant.

Packaging Consideration: The 20IMX4-1515-8Z is supplied with standard packaging designation, while the 20IMX4-1515-8G is supplied in bulk packaging. Packaging differences do not affect electrical or mechanical performance and relate only to order quantity and delivery format.

Inventory Availability: The 20IMX4-1515-8G maintains higher inventory availability (2172 pcs) compared to the 20IMX4-1515-8Z (789 pcs), making it a viable alternative when supply constraints exist.

Both parts are active products with identical performance characteristics and are suitable for direct substitution in applications requiring isolated dual-output ±15V DC-DC conversion at 4W power levels.

Frequently Asked Questions (FAQ)

Q: Can the 20IMX4-1515-8G be used as a direct replacement for the 20IMX4-1515-8Z?

A: Yes. Both parts are electrically and mechanically identical. They share the same input voltage range (8.4V to 36V), dual output configuration (+15V and -15V at 140mA each), 4W power rating, 1.5 kV isolation, protection features (OCP, OTP, OVP, SCP), operating temperature range (-40°C to +85°C), 24-DIP through-hole package, and physical dimensions (33.0mm × 20.1mm × 8.6mm). Direct substitution requires no circuit modification or board layout changes.

Q: What is the difference between 20IMX4-1515-8Z and 20IMX4-1515-8G?

A: The primary differences are RoHS compliance status and packaging format. The 20IMX4-1515-8Z is RoHS non-compliant with standard packaging, while the 20IMX4-1515-8G is ROHS3 compliant with bulk packaging. All electrical and mechanical specifications are identical.

Q: Which part should be selected for RoHS-regulated applications?

A: The 20IMX4-1515-8G must be selected for applications subject to RoHS3 regulations, as it carries ROHS3 compliance certification. The 20IMX4-1515-8Z is not suitable for RoHS-regulated markets.

Q: Are there any performance differences between these parts?

A: No. Both parts deliver identical performance across all measured parameters: 82% efficiency, 4W power output, 1.5 kV isolation voltage, and identical protection feature sets. Performance is functionally equivalent.

Q: What is the significance of the packaging difference?

A: Packaging format (standard versus bulk) affects order quantity minimums and delivery presentation only. It does not impact electrical performance, mechanical compatibility, or functional characteristics. Both packaging formats contain the same conformal-coated isolated module.

Q: Can these parts be mixed in the same production run?

A: Yes, provided the application does not have specific RoHS compliance requirements. If RoHS3 compliance is mandatory, only the 20IMX4-1515-8G should be used. If RoHS compliance is not required, both parts are functionally interchangeable.

Q: What protection features are included in both parts?

A: Both the 20IMX4-1515-8Z and 20IMX4-1515-8G include overcurrent protection (OCP), overvoltage protection (OVP), overtemperature protection (OTP), and short-circuit protection (SCP).

Q: Are both parts suitable for industrial temperature ranges?

A: Yes. Both parts operate across the temperature range of -40°C to +85°C, supporting industrial and commercial applications within this thermal envelope.