BS170 (In Stock:18892)
Single FETs, MOSFETs Manufacturer:
Mfr. Part #:
onzuu Part #:
Datasheet:
Description:
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BS170 Description
BS170 N-Channel MOSFET Overview
The BS170 is a widely used N-Channel MOSFET designed for low-power switching applications. Manufactured by onsemi, it features high reliability, low RDS(on), and convenient through-hole mounting in a TO-92 package. It’s ideal for educational, prototyping, and commercial-grade electronic designs.
BS170 Datasheet Download
You can download the official BS170 datasheet from onsemi’s website or trusted distributors. It includes electrical characteristics, thermal data, and test circuits.
Features of BS170
- N-Channel enhancement mode MOSFET
- Low RDS(on): 5 Ohms at 200mA, 10V
- Continuous Drain Current: 500mA
- Drain-Source Voltage: 60V
- Gate-Source Voltage: ±20V max
- Low input capacitance: 40pF
- Power Dissipation: 830mW (max)
- Operating temperature range: -55°C to +150°C
- TO-92 through-hole package
BS170 Specifications
| Parameter | Value |
|---|---|
| Manufacturer | onsemi |
| FET Type | N-Channel |
| Technology | MOSFET (Metal Oxide) |
| VDS (Max) | 60 V |
| ID (Continuous) | 500mA @ 25°C |
| RDS(on) | 5 Ohms @ 200mA, 10V |
| VGS(th) | 3V @ 1mA |
| VGS(max) | ±20V |
| Input Capacitance | 40 pF @ 10V |
| Package | TO-92-3 (TO-226AA) |
| Mounting | Through Hole |
| Operating Temperature | -55°C ~ 150°C (TJ) |
| Part Status | Active |
Typical Applications
- Signal switching circuits
- Load driving for LEDs and relays
- Small motor drivers
- Arduino and Raspberry Pi interfacing
- Prototyping and educational electronics
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Frequently Asked Questions (FAQ)
Q1: Can BS170 be used with 3.3V logic?
A1: It is not ideal. The BS170 typically needs 5V–10V at the gate to fully turn on. Use logic-level MOSFETs for 3.3V systems.
Q2: What are common alternatives to BS170?
A2: Popular equivalents include 2N7000 and IRLZ44N (if higher current is required).
Q3: Is BS170 suitable for PWM applications?
A3: Yes, it can handle low-frequency PWM but may not perform well at high-speed switching due to its RDS(on) and gate charge.
Conclusion
The BS170 remains a reliable and easy-to-use N-Channel MOSFET for low-power and prototyping needs. With straightforward specs, solid performance, and wide availability, it is a go-to component for makers, engineers, and educators. Choose trusted distributors like Onzuu to ensure component authenticity and consistent supply.
Technical specifications
| Configuration | Single | |
| Input Capacitance (Ciss) (Max) @ Vds | 40 pF @ 10 V | |
| PPAP | No | |
| Channel Mode | Enhancement | |
| Product Status | Active | |
| Automotive | No | |
| Drain to Source Voltage (Vdss) | 60 V | |
| Supplier Package | TO-92 | |
| Package / Case | TO-226-3, TO-92-3 (TO-226AA) | |
| Technology | MOSFET (Metal Oxide) | |
| REACH Status | REACH Unaffected | |
| Channel Type | N | |
| EU RoHS | Compliant | |
| Maximum Continuous Drain Current (A) | 0.5 | |
| Moisture Sensitivity Level (MSL) | Not Applicable | |
| Operating Temperature | -55°C ~ 150°C (TJ) | |
| Maximum Drain Source Voltage (V) | 60 | |
| Maximum Drain Source Resistance (mOhm) | 5000@10V | |
| ECCN | EAR99 | |
| Mounting Type | Through Hole | |
| Standard Package Name | TO | |
| Rds On (Max) @ Id, Vgs | 5Ohm @ 200mA, 10V | |
| Vgs(th) (Max) @ Id | 3V @ 1mA | |
| Pin Count | 3 | |
| Mounting | Through Hole | |
| Lead Shape | Through Hole | |
| Current - Continuous Drain (Id) @ 25°C | 500mA (Ta) | |
| Drive Voltage (Max Rds On, Min Rds On) | 10V | |
| HTSUS | 8541.21.0095 | |
| Package | Bulk | |
| Typical Input Capacitance @ Vds (pF) | 60(Max)@10V | |
| Category | Small Signal | |
| PCB changed | 3 | |
| HTS | COMPONENTS | |
| FET Type | N-Channel | |
| Number of Elements per Chip | 1 | |
| ECCN (US) | EAR99 | |
| Maximum Power Dissipation (mW) | 830 | |
| Supplier Device Package | TO-92-3 | |
| Minimum Operating Temperature (°C) | -55 | |
| Maximum Operating Temperature (°C) | 150 | |
| Power Dissipation (Max) | 830mW (Ta) | |
| Process Technology | DMOS | |
| Package Height | 5.33(Max) | |
| Mfr | onsemi | |
| Vgs (Max) | ±20V | |
| RoHS Status | ROHS3 Compliant | |
| FET Feature | - | |
| Maximum Gate Source Voltage (V) | ±20 | |
| Package Length | 5.2(Max) | |
| Series | - | |
| Part Status | Active | |
| Package Width | 4.19(Max) | |
| Base Product Number | BS170 |
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