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BLF2425M8LS140J Equivalent & Substitute Parts Reference
Part Overview
BLF2425M8LS140J is an RF MOSFET utilizing LDMOS technology, designed for operation at 2.45GHz with a gain of 19dB, a test voltage of 28V, and an output power of 140W. The device is housed in a SOT-502B package and intended for chassis mount applications. Product status is marked as Obsolete. Due to its obsolescence, identifying functionally compatible alternatives with matching electrical and mechanical parameters is necessary for both new designs and maintenance scenarios.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | BLF2425M8LS140J |
| Manufacturer | Ampleon USA Inc. |
| Category | Transistors, FETs, MOSFETs |
| Description | RF MOSFET LDMOS 28V SOT502B |
| Detailed Description | RF Mosfet 28 V 1.3 A 2.45GHz 19dB 140W SOT502B |
| Series | - |
| Product Status | Obsolete |
| Technology | LDMOS |
| Frequency | 2.45GHz |
| Gain | 19dB |
| Voltage - Test | 28 V |
| Current - Test | 1.3 A |
| Power - Output | 140W |
| Voltage - Rated | 65 V |
| Mounting Type | Chassis Mount |
| Package / Case | SOT-502B |
| Supplier Device Package | SOT502B |
| Base Product Number | BLF2425 |
| RoHS Status | ROHS3 Compliant |
| MSL | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
| ECCN | EAR99 |
| HTSUS | 8541.29.0075 |
Substitute Part Grouping Explanation
Substitute and equivalent parts for RF power MOSFETs such as BLF2425M8LS140J are determined by matching the following explicit key parameters: technology, package/case (SOT-502B), mounting type (chassis mount), base product number (BLF2425), RoHS compliance, MSL rating, REACH status, and ECCN designation. Only parts with these attributes identical to the original part are included as functionally equivalent or direct substitutes.
Parameter Comparison
| Parameter | BLF2425M8LS140J (Main) | BLF2425M9LS140J (Substitute) |
|---|---|---|
| Manufacturer | Ampleon USA Inc. | Ampleon USA Inc. |
| Category | Transistors, FETs, MOSFETs | Transistors, FETs, MOSFETs |
| Mounting Type | Chassis Mount | Chassis Mount |
| Package / Case | SOT-502B | SOT-502B |
| Supplier Device Package | SOT502B | SOT502B |
| Base Product Number | BLF2425 | BLF2425 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.29.0075 | 8541.29.0075 |
Engineering Selection Recommendations
Selection between BLF2425M8LS140J and BLF2425M9LS140J is based on product status and environmental compliance. BLF2425M8LS140J is obsolete, while BLF2425M9LS140J is active and maintains identical RoHS, MSL, and REACH classifications. Both parts are classified under the same ECCN and HTSUS codes.
Frequently Asked Questions (FAQ)
Q1: What criteria determine equivalent and substitute status for RF MOSFETs in this category?
A1: Key criteria include identical mounting type, package/case, base product number, RoHS compliance, MSL rating, REACH status, ECCN code, and manufacturer.
Q2: Are different SOT-502B package variants cross-compatible?
A2: Only parts with the exact SOT-502B package designation are considered equivalent in this reference.
Q3: Does environmental compliance such as RoHS affect substitutability?
A3: Yes, environmental compliance status (RoHS, REACH, and MSL) must match for direct substitution.
Q4: What role does product status play in part selection?
A4: Active parts are preferred for ongoing supply chain stability when the original part is obsolete.
Q5: Is the supplier device package important for mechanical compatibility?
A5: Supplier device package consistency (SOT502B) ensures mechanical compatibility in assembly.
Q6: Are functional parameters such as frequency and output power included in the substitution logic?
A6: Only parameters explicitly provided are listed as the basis for equivalence in this reference.
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