Request Quote
(Ships tomorrow)
ISF0509 Equivalent & Substitute Parts Reference
Part Overview
The ISF0509 from XP Power is an isolated module DC-DC converter, specified for +/-9V dual outputs at 55mA each, designed primarily for ITE (Commercial) applications. This product is classified as obsolete, requiring engineers to identify alternative models for design continuity and replacement. Substitution is necessary due to lifecycle status and ongoing requirements for compatible isolated DC-DC modules.
Substiute Parts
Key Parameters
| Parameter | ISF0509 |
|---|---|
| Manufacturer | XP Power |
| Type | Isolated Module |
| Number of Outputs | 2 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output 1 | 9V |
| Voltage - Output 2 | -9V |
| Current - Output (Max) | 55mA, 55mA |
| Power (Watts) | 1 W |
| Voltage - Isolation | 1 kV |
| Applications | ITE (Commercial) |
| Efficiency | 76% |
| Mounting Type | Surface Mount |
| Package / Case | 10-SMD Module |
| Size / Dimension | 0.60" L x 0.30" W x 0.24" H (15.2mm x 7.5mm x 6.0mm) |
| Operating Temperature | -40°C ~ 85°C |
| RoHS Status | ROHS3 Compliant |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution logic is based strictly on the parameters: type (isolated module), number and value of outputs (dual +/-9V), input voltage range (4.5V - 5.5V), output current capability, output power (1W), isolation voltage, application category (ITE commercial), surface mount package, and RoHS3 compliance. Substitute models must match or exceed the original requirements in these listed parameters for electrical and mechanical compatibility.
Parameter Comparison
| Parameter | ISF0509 (XP Power) |
IAS0105D09 (XP Power) |
|---|---|---|
| Type | Isolated Module | Isolated Module |
| Number of Outputs | 2 | 2 |
| Voltage - Input (Min) | 4.5V | 4.5V |
| Voltage - Input (Max) | 5.5V | 5.5V |
| Voltage - Output 1 | 9V | 9V |
| Voltage - Output 2 | -9V | -9V |
| Current - Output (Max) | 55mA, 55mA | 56mA, 56mA |
| Power (Watts) | 1 W | 1 W |
| Voltage - Isolation | 1 kV | 1.5 kV |
| Applications | ITE (Commercial) | ITE (Commercial) |
| Efficiency | 76% | 83% |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 10-SMD Module | 10-SMD Module, 6 Leads |
| Size / Dimension | 0.60" L x 0.30" W x 0.24" H (15.2mm x 7.5mm x 6.0mm) | 0.60" L x 0.33" W x 0.29" H (15.2mm x 8.5mm x 7.3mm) |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 105°C (With Derating) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active |
Engineering Selection Recommendations
ISF0509 is obsolete, requiring the use of an alternative. IAS0105D09 from XP Power is active and meets or exceeds all provided parameters, including RoHS3 compliance. Both share surface mount packaging and are suitable for ITE (Commercial) applications.
Frequently Asked Questions (FAQ)
Q: What criteria must a DC-DC converter meet to substitute for ISF0509?
A: The substitute must be an isolated module, support dual outputs of +9V and -9V, operate within 4.5V to 5.5V input, provide at least 55mA per output, offer 1W power, and meet or exceed the original's isolation voltage, compliance, and mounting type.
Q: Is package size or configuration different between ISF0509 and IAS0105D09?
A: Both use a 10-SMD module package, though IAS0105D09 includes 6 leads and may differ slightly in physical dimensions.
Q: Are there any differences in compliance or temperature range?
A: Both parts are ROHS3 compliant. IAS0105D09 offers a wider operating temperature range (-40°C ~ 105°C with derating).
Q: Does the substitute part require changes in PCB footprint?
A: Both are surface mount 10-SMD modules; verify the specific dimensions for mechanical compatibility.
Q: Are the electrical characteristics equivalent?
A: All critical electrical characteristics for input voltage, output voltage, output current, power, and isolation are met or exceeded by IAS0105D09.
Q: What is the product status rationale for substitution?
A: The main part, ISF0509, is obsolete, while IAS0105D09 is active and available in inventory, supporting continued production or maintenance.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts