Request Quote
(Ships tomorrow)
SFS30483R3B Equivalent & Substitute Parts Reference
Part Overview
The Cosel USA, Inc. SFS30483R3B is an obsolete DC DC converter in the isolated module category, providing 3.3V at up to 9A from a 36V–76V input, with a 30W output and 1.5kV isolation. Suitable for ITE (Commercial) applications, this part is RoHS3 compliant and available in a 20-SMD Module, 17 Leads package. Due to its obsolete status, it is necessary to identify suitable substitute models with matching core electrical, mechanical, and compliance parameters for maintaining existing system compatibility.
Substiute Parts
Key Parameters
| Parameter | SFS30483R3B |
|---|---|
| Type | Isolated Module |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 36V |
| Voltage - Input (Max) | 76V |
| Voltage - Output 1 | 3.3V |
| Current - Output (Max) | 9A |
| Power (Watts) | 30 W |
| Voltage - Isolation | 1.5 kV |
| Applications | ITE (Commercial) |
| Efficiency | 92% |
| Operating Temperature | -40°C ~ 85°C (With Derating) |
| Mounting Type | Surface Mount |
| Package / Case | 20-SMD Module, 17 Leads |
| Size / Dimension | 1.52" L x 1.23" W x 0.31" H (38.7mm x 31.2mm x 8.0mm) |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution within this DC DC isolated module product category is determined strictly by the following parameters: input voltage range, output voltage, output current or power, isolation voltage, mounting type, operating temperature, compliance, and package compatibility. Substitute part numbers are included when all these parameters fall within the allowable operational limits as stated in the provided specifications.
Key parameters used for substitution:
- Type (Isolated Module)
- Number of Outputs
- Voltage - Input (Min/Max)
- Voltage - Output
- Current - Output (Max) / Power (Watts)
- Voltage - Isolation
- Applications
- Efficiency
- Operating Temperature
- Mounting Type
- Package / Case
- RoHS Status
Parameter Comparison
| Parameter | SFS30483R3B Cosel USA, Inc. |
PKU5510ESI Flex Power Modules |
|---|---|---|
| Type | Isolated Module | Isolated Module |
| Number of Outputs | 1 | 1 |
| Voltage - Input (Min) | 36V | 18V |
| Voltage - Input (Max) | 76V | 75V |
| Voltage - Output 1 | 3.3V | 3.3V |
| Current - Output (Max) | 9A | 15A |
| Power (Watts) | 30 W | 50 W |
| Voltage - Isolation | 1.5 kV | 2.25 kV |
| Applications | ITE (Commercial) | ITE (Commercial) |
| Efficiency | 92% | 92% |
| Operating Temperature | -40°C ~ 85°C (With Derating) | -40°C ~ 105°C (With Derating) |
| Mounting Type | Surface Mount | Surface Mount |
| Package / Case | 20-SMD Module, 17 Leads | Sixteenth Brick |
| Size / Dimension | 1.52" L x 1.23" W x 0.31" H (38.7mm x 31.2mm x 8.0mm) | 1.30" L x 0.90" W x 0.37" H (33.0mm x 22.9mm x 9.4mm) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
Engineering Selection Recommendations
SFS30483R3B is obsolete. Substitute part PKU5510ESI is active, offers equivalent compliance (ROHS3), and covers the required electrical and mechanical parameters including output voltage, current, isolation voltage, efficiency, and a compatible mounting type. Product certifications and status are confirmed within the provided data.
Frequently Asked Questions (FAQ)
Q1: What key parameters determine if PKU5510ESI can substitute for SFS30483R3B?
A1: Substitution is determined by type (isolated module), input and output voltage ranges, output current or power capability, isolation voltage, efficiency, operating temperature, mounting type, compliance status, and application suitability.
Q2: Are package sizes and mounting types of SFS30483R3B and PKU5510ESI fully compatible?
A2: Both have surface mount capability; however, the package/case dimensions and formats are different as listed in the specification table.
Q3: Does PKU5510ESI meet the same compliance requirements as SFS30483R3B?
A3: Both SFS30483R3B and PKU5510ESI are ROHS3 compliant.
Q4: Are there differences in electrical ratings between these substitute power modules?
A4: PKU5510ESI supports a wider input range (down to 18V), higher maximum output current and power, and greater isolation voltage, matching or exceeding the specifications of the SFS30483R3B.
Q5: What application suitability is supported by both modules?
A5: Both modules are listed for ITE (Commercial) applications per the provided data.
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

