STR3A162HD Equivalent & Substitute Parts

Part Overview

The STR3A162HD is an offline switch flyback converter IC manufactured by Sanken Electric USA Inc., designed for isolated power management applications. This 8-DIP through-hole component operates at 100kHz switching frequency with 40W power handling capability and integrated fault protection including current limiting, overload, overvoltage, and overtemperature protection.

The STR3A162HD is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support legacy system maintenance and repairs.

Substiute Parts

STR3A162HD

Sanken Electric USA Inc.In Stock: 1499STR3A162HD Datasheet

Current PartRFQ

STR-A6063HD

Sanken Electric USA Inc.In Stock: 740STR-A6063HD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the STR3A162HD is determined by strict equivalence across the following critical parameters:

Topology and isolation architecture must remain flyback with isolated output. Electrical specifications including 700V breakdown voltage, 8.1V–32V supply range, 15.3V startup voltage, 100kHz switching frequency, 40W power rating, and 83% duty cycle must be maintained. Fault protection features (current limiting, overload, overvoltage, overtemperature) must be present. Package form factor must be 8-DIP through-hole configuration with 0.300" (7.62mm) pitch. RoHS compliance and MSL rating must be equivalent or superior.

The STR-A6063HD meets all substitution criteria and is classified as an active product, providing improved supply availability compared to the obsolete STR3A162HD.

Parameter Comparison

Engineering Selection Recommendations

The STR-A6063HD is a direct functional equivalent to the STR3A162HD. Both components share identical electrical specifications, switching characteristics, fault protection architecture, and package configuration. The STR-A6063HD offers the additional advantage of active product status, ensuring continued manufacturing support and supply chain availability.

The STR-A6063HD operating temperature range (-20°C ~ 125°C) encompasses the STR3A162HD range (-40°C ~ 115°C) with extended upper temperature capability. Both components maintain RoHS compliance and identical moisture sensitivity ratings, supporting equivalent environmental and regulatory requirements.

For applications currently using the STR3A162HD, direct substitution with the STR-A6063HD is supported without circuit modification. Pin configuration, electrical interface, and functional behavior remain consistent across both components.

Frequently Asked Questions (FAQ)

Q: Can the STR-A6063HD replace the STR3A162HD in existing designs?

A: Yes. The STR-A6063HD is electrically and mechanically equivalent to the STR3A162HD. All critical parameters including topology, voltage ratings, switching frequency, power handling, fault protection, and package configuration are identical. Direct substitution is supported without design changes.

Q: What is the primary advantage of using STR-A6063HD over STR3A162HD?

A: The STR-A6063HD is classified as an active product with ongoing manufacturing support, whereas the STR3A162HD is obsolete. This ensures long-term supply availability and consistent component quality for new production and field repairs.

Q: Are there any temperature rating differences between these parts?

A: The STR-A6063HD operates across -20°C ~ 125°C, while the STR3A162HD operates across -40°C ~ 115°C. The STR-A6063HD provides extended upper temperature capability. For applications requiring the full -40°C lower limit, verify that the STR-A6063HD minimum temperature of -20°C meets system requirements.

Q: Is the 8-DIP package configuration identical for both parts?

A: Yes. Both components use 8-DIP through-hole packaging with 0.300" (7.62mm) pitch. PCB layout and mounting procedures are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the STR3A162HD and STR-A6063HD are RoHS compliant with MSL rating of 1 (Unlimited), supporting equivalent environmental and regulatory requirements.