VWRAS2-D12-D9-SIP Equivalent & Substitute Parts Reference

Part Overview

The CUI Inc. VWRAS2-D12-D9-SIP is a 2W isolated DC-DC converter module providing two outputs at +9V and -9V, each capable of supplying 111mA. It operates from a 9V to 18V input range and is intended for ITE (Commercial) applications, featuring short-circuit protection, through-hole mounting, and a compact SIP-8 package. This part is currently classified as obsolete, which necessitates identifying direct substitute models to maintain product lifecycle support, ensure ongoing manufacturability, and provide alternatives in the supply chain.

Substiute Parts

VWRAS2-D12-D9-SIP
CUI Inc.In Stock: 1265VWRAS2-D12-D9-SIP Datasheet
VWRAS2-D12-D9-SIP
Current Part
RS-1209D/H2
Recom PowerIn Stock: 12506RS-1209D/H2 Datasheet
RS-1209D/H2
Direct

Key Parameters

ParameterVWRAS2-D12-D9-SIP
TypeIsolated Module
Number of Outputs2
Voltage - Input (Min)9V
Voltage - Input (Max)18V
Voltage - Output 19V
Voltage - Output 2-9V
Current - Output (Max)111mA, 111mA
Power (Watts)2 W
Voltage - Isolation1.5 kV
Mounting TypeThrough Hole
Package / Case8-SIP Module, 7 Leads
Operating Temperature-40°C ~ 85°C
Efficiency76%
RoHS StatusRoHS Compliant
MSL1 (Unlimited)
REACH StatusREACH Unaffected

Substitute Part Grouping Explanation

Substitution is permitted strictly when the following key parameters are matched:

  • Type: Isolated Module
  • Number of Outputs: 2
  • Voltage - Input (Min): 9V
  • Voltage - Input (Max): 18V
  • Voltage - Output 1: 9V
  • Voltage - Output 2: -9V
  • Current - Output (Max): 111mA, 111mA
  • Power (Watts): 2 W
  • Voltage - Isolation: Equal to or greater than 1.5 kV
  • Mounting Type: Through Hole
  • Package / Case: 8-SIP Module, 7 Leads
  • Operating Temperature: -40°C ~ 85°C
  • RoHS and REACH Compliance

Only parts matching these parameters are included as substitutes.

Parameter Comparison

Parameter VWRAS2-D12-D9-SIP (CUI Inc.) RS-1209D/H2 (Recom Power)
TypeIsolated ModuleIsolated Module
Number of Outputs22
Voltage - Input (Min)9V9V
Voltage - Input (Max)18V18V
Voltage - Output 19V9V
Voltage - Output 2-9V-9V
Current - Output (Max)111mA, 111mA111mA, 111mA
Power (Watts)2 W2 W
Voltage - Isolation1.5 kV2 kV
Mounting TypeThrough HoleThrough Hole
Package / Case8-SIP Module, 7 Leads8-SIP Module, 7 Leads
Operating Temperature-40°C ~ 85°C-40°C ~ 85°C
Efficiency76%78%
RoHS StatusRoHS CompliantROHS3 Compliant
MSL1 (Unlimited)1 (Unlimited)
REACH StatusREACH UnaffectedREACH Unaffected

Engineering Selection Recommendations

The primary selection criterion is product status. The CUI Inc. VWRAS2-D12-D9-SIP part is obsolete, while the Recom Power RS-1209D/H2 is active. Both parts are RoHS and REACH compliant and meet Moisture Sensitivity Level 1 (Unlimited). These compliance and certifications fulfill standard regulatory and supply chain requirements based solely on the provided information.

Frequently Asked Questions (FAQ)

Q1: What are the essential criteria for substituting VWRAS2-D12-D9-SIP?
A1: Substitution requires matching Type, Number of Outputs, Input Voltage Range, Output Voltages, Output Currents, Power Rating, Isolation Voltage, Package, Mounting Type, Operating Temperature Range, and compliance parameters.

Q2: Is RS-1209D/H2 pin-to-pin compatible with VWRAS2-D12-D9-SIP?
A2: Both parts use the 8-SIP Module, 7 Leads package and through-hole mounting, aligning with mechanical constraints.

Q3: Are there any compliance differences between VWRAS2-D12-D9-SIP and RS-1209D/H2?
A3: Both parts are RoHS compliant, REACH unaffected, and rated MSL 1 (Unlimited).

Q4: Does the substitute part support the same operating temperature range as the original?
A4: Yes. Both parts operate from -40°C to 85°C.

Q5: Are there differences in isolation voltage capability?
A5: The VWRAS2-D12-D9-SIP provides 1.5 kV isolation, while RS-1209D/H2 provides 2 kV isolation, which meets or exceeds the original part's specification.

Q6: What should be considered regarding stock and lifecycle status?
A6: VWRAS2-D12-D9-SIP is obsolete, while RS-1209D/H2 is active, supporting ongoing production needs.

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