Key Selection Information
| Selection Parameter | Confirmed Information |
|---|---|
| Manufacturer | onsemi |
| Exact MPN | MMBFJ201 |
| Product Category | JFETs |
| Package | SOT-23-3L |
| Packing | 3,000 pcs/reel |
| Gate-Source Cutoff Voltage (VGS(off)) | 300mV |
| Gate-Source Breakdown Voltage (VGSS) | 40V |
| Power Dissipation (PD) | 350mW |
| Zero-Gate Drain Current (IDSS) | 1mA |
Product Overview
MMBFJ201 is a onsemi device in the JFETs category, supplied in a SOT-23-3L package.
Verified selection data includes Gate-Source Cutoff Voltage (VGS(off)): 300mV, Gate-Source Breakdown Voltage (VGSS): 40V, Power Dissipation (PD): 350mW, Zero-Gate Drain Current (IDSS): 1mA.
The sub-nanoampere gate-leakage specification is useful for high-impedance audio and sensor nodes; the low I_{DSS} limits available signal-handling current.
Technical Specifications
| Parameter | Verified Information |
|---|---|
| Manufacturer | onsemi |
| Exact MPN | MMBFJ201 |
| Functional Category | JFETs |
| Package | SOT-23-3L |
| Packing | 3,000 pcs/reel |
| Source Catalog ID | C891687 |
| Gate-Source Cutoff Voltage (VGS(off)) | 300mV |
| Gate-Source Breakdown Voltage (VGSS) | 40V |
| Power Dissipation (PD) | 350mW |
| Zero-Gate Drain Current (IDSS) | 1mA |
| Manufacturer Status | Active. |
Selection Notes
Low current; cutoff voltage; transconductance; gate leakage; high-impedance source compatibility.
Match channel polarity, VGS(off), breakdown voltage, current range and dissipation to the analog switch or bias point.
Manufacturer Decision-Relevant Notes
V_{DG} max 40 V; V_{GS} max -40 V; I_{GF} max 50 mA; operating/storage junction range -55 to +150 °C; P_D max 350 mW at 25 °C; R_{θ JA} 357 °C/W; V_{(BR)GSS} min 40 V; I_{GSS} max 100 pA at V_{GS}=-20 V; V_{GS(off)} -0.3 to -1.5 V; I_{DSS} 0.2–1.0 mA; y_{fs} typ 500 µmhos at V_{DS}=20 V, 1 kHz.
Design Considerations
- Verify bias stability over -55 to +150 °C; use the full 0.2–1.0 mA I_{DSS} range; check V_{GS(off)} spread in the operating-point design; budget 350 mW maximum dissipation with board thermal resistance.
Application Fit
Low-level audio and general-purpose amplification with high-impedance signal sources.
Exact Variant and Procurement Notes
Exact MPN MMBFJ201; SOT-23, top mark 62P, 3,000/tape-and-reel, Pb-free.
Manufacturer Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment. Physical product, label, packaging, and Date Code photos may be provided where appropriate.
Request a Quote
For MMBFJ201 quotation, provide the exact MPN, required quantity, destination, target Date Code if applicable, and any inspection or testing requirements.
