PSS3-5-12/S Equivalent & Substitute Parts

Part Overview

The PSS3-5-12/S is an isolated module DC-DC converter manufactured by TDK-Lambda Americas Inc, designed for commercial ITE applications. This 3W converter accepts input voltage from 4.5V to 9V and delivers a fixed 12V output at 250mA maximum current. The product is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and support ongoing system requirements.

Substiute Parts

PSS3-5-12/S

TDK-Lambda Americas IncIn Stock: 1116PSS3-5-12/S Datasheet

Current PartRFQ

CC3-0512SR-E

TDK-Lambda Americas IncIn Stock: 801CC3-0512SR-E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The CC3-0512SR-E qualifies as a direct substitute based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• Input voltage range: 4.5V - 9V (identical)
• Maximum output current: 250mA (identical)
• Power rating: 3W (identical)
• Operating temperature range: -40°C to 85°C (identical)
• Mounting type: Surface Mount (identical)
• Manufacturer: TDK-Lambda Americas Inc (same source)
• Isolation voltage: 500V (meets or exceeds typical requirements)

Substitution Basis: The CC3-0512SR-E operates within the same input and output current specifications as the PSS3-5-12/S. The output voltage specification of 12V - 15V on the CC3-0512SR-E encompasses the fixed 12V output of the PSS3-5-12/S, providing functional equivalence for applications requiring 12V operation. Both converters maintain identical thermal operating windows and power delivery capacity.

Parameter Comparison

Engineering Selection Recommendations

The CC3-0512SR-E is the designated substitute for the obsolete PSS3-5-12/S based on electrical parameter equivalence and active product status. The substitute maintains identical input voltage specifications, output current capacity, power rating, and thermal operating range.

Compliance Considerations: The CC3-0512SR-E carries RoHS Compliant certification and REACH Unaffected status, providing regulatory compliance advantages over the original PSS3-5-12/S for new designs and ongoing production.

Physical Integration: The CC3-0512SR-E uses a 7-SMD Module package compared to the 6-SMD Module of the PSS3-5-12/S. Physical dimensions differ slightly (22.9mm x 16.6mm x 8.8mm versus 25.9mm x 16.0mm x 8.0mm). PCB layout and mechanical mounting must be re-evaluated for the substitute component.

Control Features: The CC3-0512SR-E includes Enable control with Active Low logic, providing additional functional capability beyond the Remote On/Off feature of the original part.

Frequently Asked Questions (FAQ)

Q: Can the CC3-0512SR-E directly replace the PSS3-5-12/S in existing designs?

A: Electrical substitution is valid based on matching input voltage range (4.5V - 9V), output current (250mA), power rating (3W), and operating temperature (-40°C to 85°C). However, physical layout changes are required due to different package types (7-SMD versus 6-SMD) and dimensional variations. PCB footprint redesign is necessary.

Q: What is the significance of the output voltage range 12V - 15V on the CC3-0512SR-E?

A: The CC3-0512SR-E provides adjustable or selectable output voltage within the 12V - 15V range. For applications requiring fixed 12V operation, the substitute operates at the lower end of this range, maintaining functional equivalence with the PSS3-5-12/S fixed 12V output.

Q: Are there differences in control functionality between these parts?

A: The PSS3-5-12/S features Remote On/Off control with OCP (Over-Current Protection). The CC3-0512SR-E provides Enable control with Active Low logic. Both converters include protection features; however, control interface implementation differs and must be evaluated for specific application requirements.

Q: What packaging differences exist between the PSS3-5-12/S and CC3-0512SR-E?

A: The PSS3-5-12/S uses 6-SMD Module packaging in a Tray format. The CC3-0512SR-E uses 7-SMD Module packaging, also in Tray format. The dimensional difference (approximately 3mm in length and 0.6mm in height) requires PCB layout verification before implementation.

Q: Is the CC3-0512SR-E suitable for new product designs?

A: Yes. The CC3-0512SR-E carries Active product status with RoHS Compliant and REACH Unaffected certifications, making it appropriate for new designs requiring regulatory compliance and long-term supply availability.