Equivalent & Substitute Parts Reference for RSS-123.3/H

Part Overview

The RSS-123.3/H from Recom Power is an isolated module DC-DC converter providing one output of 3.3V at up to 303mA. It operates with an input voltage range of 10.8V to 13.2V, delivers a rated power of 1W, and features 3kV isolation. Designed for ITE (Commercial) and Medical applications, the module includes short-circuit protection and is mounted as a surface-mount 8-SMD module with 5 leads. This product is classified as Obsolete; therefore, it is critical to identify alternative models to ensure continuity in design, maintenance, and inventory management for applications requiring equivalent performance and package characteristics.

Substiute Parts

RSS-123.3/H
Recom PowerIn Stock: 886RSS-123.3/H Datasheet
RSS-123.3/H
Current Part
R1S-123.3/H
Recom PowerIn Stock: 834R1S-123.3/H Datasheet
R1S-123.3/H
Direct

Key Parameters

Parameter Main Part (RSS-123.3/H) Unit
Voltage - Input (Min) 10.8 V
Voltage - Input (Max) 13.2 V
Voltage - Output 1 3.3 V
Current - Output (Max) 303 mA
Power (Watts) 1 W
Voltage - Isolation 3 kV V
Operating Temperature -40°C ~ 85°C °C
Mounting Type Surface Mount -
Package / Case 8-SMD Module, 5 Leads -
Size / Dimension 0.50" x 0.32" x 0.29" (12.8mm x 8.2mm x 7.3mm) -
RoHS Status ROHS3 Compliant -
REACH Status REACH Unaffected -

Substitute Part Grouping Explanation

Substitution for DC-DC converter modules is governed by compatibility across core electrical and mechanical parameters, including: input voltage range, single output voltage, maximum output current, total power wattage, isolation voltage, operating temperature, mounting type, package, and size dimensions. Only parts matching these parameters are considered as valid substitutes.

Parameter Comparison

Parameter RSS-123.3/H (Main) R1S-123.3/H (Substitute)
Manufacturer Recom Power Recom Power
Voltage - Input (Min) 10.8V 10.8V
Voltage - Input (Max) 13.2V 13.2V
Voltage - Output 1 3.3V 3.3V
Current - Output (Max) 303mA 303mA
Power (Watts) 1W 1W
Voltage - Isolation 3 kV 3 kV
Operating Temperature -40°C ~ 85°C -40°C ~ 100°C
Mounting Type Surface Mount Surface Mount
Package / Case 8-SMD Module, 5 Leads 8-SMD Module, 5 Leads
Size / Dimension 0.50" x 0.32" x 0.29" 0.50" x 0.42" x 0.28"
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected
Product Status Obsolete Active

Engineering Selection Recommendations

RSS-123.3/H is listed as Obsolete, while R1S-123.3/H is Active. Both modules are ROHS3 Compliant and REACH Unaffected. For designs requiring a component with an active status and unrestricted compliance, R1S-123.3/H aligns with necessary standards and certifications.

Frequently Asked Questions (FAQ)

Q1: What are the critical substitution criteria for RSS-123.3/H in DC-DC converter applications?
A1: Critical substitution criteria include matching input voltage range, output voltage, maximum output current, power rating, isolation voltage, operating temperature range, mounting type, package configuration, and compliance certifications.

Q2: Is the R1S-123.3/H directly compatible with the RSS-123.3/H in terms of pinout and mounting?
A2: Both components are listed as Surface Mount type in the 8-SMD Module, 5 Leads package, ensuring compatibility in mounting and basic mechanical configuration.

Q3: How do package dimensions affect substitute selection?
A3: While the overall footprint and lead configuration are consistent, R1S-123.3/H has a width of 0.42" compared to 0.32" for RSS-123.3/H. Verify board layout fit within the provided tolerances.

Q4: What compliance standards do both parts meet?
A4: Both RSS-123.3/H and R1S-123.3/H are ROHS3 Compliant and REACH Unaffected, supporting restricted material requirements for global markets.

Q5: What operational differences should be considered between RSS-123.3/H and R1S-123.3/H?
A5: The substitute R1S-123.3/H offers an operating temperature range up to 100°C, exceeding the 85°C of the RSS-123.3/H, which may provide improved suitability for environments with higher temperature requirements.

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