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Equivalent & Substitute Parts Reference: ISW0503A-H
Part Overview
The ISW0503A-H from XP Power is an isolated module DC-DC converter designed for ITE (Commercial) applications. This model provides a single 3.3V output at up to 243mA, with an input voltage range of 4.75V to 5.25V and 3 kV isolation. As the ISW0503A-H is designated as an obsolete product, identifying direct replacements with matching key parameters is necessary to maintain system functionality and supply continuity.
Substiute Parts
Key Parameters
| Manufacturer Part Number | Manufacturer | Type | Number of Outputs | Voltage - Input (Min) | Voltage - Input (Max) | Voltage - Output 1 | Current - Output (Max) | Power (Watts) | Voltage - Isolation | Applications | Features | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | RoHS Status | Moisture Sensitivity Level (MSL) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISW0503A-H | XP Power | Isolated Module | 1 | 4.75V | 5.25V | 3.3V | 243mA | 1 W | 3 kV | ITE (Commercial) | SCP | -40°C ~ 85°C | 58% | Surface Mount | 10-SMD Module, 6 Leads | 0.60" L x 0.33" W x 0.28" H (15.2mm x 8.3mm x 7.0mm) | ROHS3 Compliant | 1 (Unlimited) | Obsolete |
Substitute Part Grouping Explanation
Substitute parts for the ISW0503A-H are identified exclusively by matching or exceeding the following electrical and mechanical parameters: type (isolated module), number of outputs (1), output voltage (3.3V), output current (243mA minimum), input voltage range (must encompass 4.75V–5.25V), output power (1W), voltage isolation (3kV), application (ITE Commercial), short circuit protection (SCP), surface-mount configuration, RoHS compliance, and equivalent or compatible package format. These shared characteristics ensure direct replacement in applications where the ISW0503A-H is deployed.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Type | Number of Outputs | Voltage - Input (Min) | Voltage - Input (Max) | Voltage - Output 1 | Current - Output (Max) | Power (Watts) | Voltage - Isolation | Applications | Features | Operating Temperature | Efficiency | Mounting Type | Package / Case | Size / Dimension | RoHS Status | Moisture Sensitivity Level (MSL) | Product Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISW0503A-H | XP Power | Isolated Module | 1 | 4.75V | 5.25V | 3.3V | 243mA | 1 W | 3 kV | ITE (Commercial) | SCP | -40°C ~ 85°C | 58% | Surface Mount | 10-SMD Module, 6 Leads | 0.60" L x 0.33" W x 0.28" H (15.2mm x 8.3mm x 7.0mm) | ROHS3 Compliant | 1 (Unlimited) | Obsolete |
| PES1-S5-S3-M-TR | CUI Inc. | Isolated Module | 1 | 4.5V | 5.5V | 3.3V | 303mA | 1 W | 3 kV | ITE (Commercial) | SCP | -40°C ~ 105°C (With Derating) | 76% | Surface Mount | 8-SMD Module, 5 Leads | 0.50" L x 0.33" W x 0.29" H (12.7mm x 8.3mm x 7.3mm) | RoHS Compliant | 1 (Unlimited) | Active |
Engineering Selection Recommendations
Since the ISW0503A-H is classified as obsolete, selection of PES1-S5-S3-M-TR is based on active status, RoHS compliance, identical application scope (ITE Commercial), and maintained isolation voltage and output characteristics according to the supplied specifications. Certification and approval data provided for PES1-S5-S3-M-TR further aligns with regulatory and compliance continuity for electrical design substitutions.
Frequently Asked Questions (FAQ)
Q1: What are the critical parameters when selecting an equivalent DC-DC converter module for ISW0503A-H?
A1: Electrical output (voltage, current), input voltage range, output power, voltage isolation, type, mounting method, application category, protection features, package style, and compliance status.
Q2: Is PES1-S5-S3-M-TR compatible as a direct substitute for ISW0503A-H regarding pinout and package?
A2: PES1-S5-S3-M-TR is a surface-mount isolated module with an 8-SMD, 5-lead package. The ISW0503A-H utilizes a 10-SMD, 6-lead package. Mechanical integration requires comparison of physical and lead arrangements between modules.
Q3: How do input and output electrical parameters compare between the main part and substitute?
A3: Both provide a 3.3V regulated output at 1W power and share a 3 kV isolation rating. PES1-S5-S3-M-TR supports a wider input range (4.5V–5.5V) and higher maximum output current.
Q4: Are there operational temperature or efficiency differences?
A4: PES1-S5-S3-M-TR supports a broader operating temperature range as specified, and provides higher efficiency compared to ISW0503A-H based on supplied specifications.
Q5: Are substitute parts RoHS and moisture sensitivity compliant?
A5: Both ISW0503A-H and PES1-S5-S3-M-TR meet RoHS standards and are classified MSL 1 (Unlimited).
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