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Single N-Channel Small Signal MOSFET 60V, 500mA, 5Ω, TO-92-3, 10000-BLKBG
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
BS170 by onsemi is a Small Signal Field-Effect Transistor.
Small Signal Field-Effect Transistors are under the broader part category of Transistors.
A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.
| Part # | Manufacturer | Description | Datasheet |
|---|---|---|---|
| ND9BS1700 | Amphenol Communications Solutions | ix Industrial, Input output connectors, Receptacle, Type B RA Flag Style, SMT, Palladium-Nickel Gold |
| Part # | Distributor | Description | Stock | Price | Buy | |
|---|---|---|---|---|---|---|
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DISTI #
25M7820
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Newark | Mosfet Transistor, N Channel, 500 Ma, 60 V, 1.2 Ohm, 10 V, 2.1 V Rohs Compliant: Yes |Onsemi BS170 RoHS: Compliant Min Qty: 5 Package Multiple: 1 Date Code: 1 Container: Bulk | 34231 |
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$0.0940 / $0.2730 | Buy Now |
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DISTI #
25AC6457
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Newark | Dmos 60V 1.2 Ohm To92 Rohs Compliant: Yes |Onsemi BS170 RoHS: Compliant Min Qty: 10000 Package Multiple: 1 Date Code: 0 Container: Bulk | 875 |
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$0.0940 | Buy Now |
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DISTI #
BS170
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Avnet Americas | - Bulk (Alt: BS170) COO: China RoHS: Compliant Min Qty: 10000 Package Multiple: 1 Lead time: 18 Weeks, 0 Days Container: Bulk | 875 |
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$0.0621 / $0.0663 | Buy Now |
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DISTI #
BS170
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Avnet Americas | - Bulk (Alt: BS170) COO: China RoHS: Compliant Min Qty: 16667 Package Multiple: 1 Container: Bulk | 109888 Partner Stock |
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$0.0561 / $0.0572 | Buy Now |
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DISTI #
73928893
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RS | TRANSISTOR, MOSFET, N-CHANNEL, FIELD EFFECT, ENHANCEMENT MODE, 60V, 0.5A TO-92 Min Qty: 10 Package Multiple: 1 Lead time: 2 Weeks, 0 Days Container: Bulk | 0 |
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$0.2160 / $0.2540 | RFQ |
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Rochester Electronics | Small Signal Field-Effect Transistor, 0.5A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-226AA RoHS: Compliant Status: Active Min Qty: 1 | 53520 |
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$0.0523 / $0.0844 | Buy Now |
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DISTI #
BS170
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TME | Transistor: N-MOSFET, unipolar, 60V, 500mA, Idm: 1.2A, 0.83W, TO92 Min Qty: 1 | 12291 |
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$0.0840 / $0.2900 | Buy Now |
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ComSIT USA | N-CHANNEL ENHANCEMENT MODE FIELD EFFECT TRANSISTOR Small Signal Field-Effect Transistor, 0.5A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-226AA ECCN: EAR99 RoHS: Compliant |
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RFQ | |
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DISTI #
BS170
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Avnet Silica | (Alt: BS170) RoHS: Compliant Min Qty: 10000 Package Multiple: 10000 Lead time: 19 Weeks, 0 Days | Silica - 10000 |
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Buy Now | |
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Chip Stock | Transistor,MOSFET,N-channel,fieldeffect,enhancementmode,60V,0.5ATO-92 | 89000 |
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RFQ |
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BS170
onsemi
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Datasheet
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Compare Parts:
BS170
onsemi
Single N-Channel Small Signal MOSFET 60V, 500mA, 5Ω, TO-92-3, 10000-BLKBG
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| Pbfree Code | Yes | |
| Rohs Code | Yes | |
| Part Life Cycle Code | Active | |
| Ihs Manufacturer | ONSEMI | |
| Part Package Code | TO-92-3 | |
| Pin Count | 3 | |
| Manufacturer Package Code | 135AN | |
| Reach Compliance Code | Compliant | |
| ECCN Code | EAR99 | |
| Samacsys Manufacturer | onsemi | |
| Additional Feature | LOGIC LEVEL COMPATIBLE | |
| Configuration | SINGLE WITH BUILT-IN DIODE | |
| DS Breakdown Voltage-Min | 60 V | |
| Drain Current-Max (ID) | 0.5 A | |
| Drain-source On Resistance-Max | 5 Ω | |
| FET Technology | METAL-OXIDE SEMICONDUCTOR | |
| JEDEC-95 Code | TO-226AA | |
| JESD-30 Code | O-PBCY-T3 | |
| JESD-609 Code | e3 | |
| Number of Elements | 1 | |
| Number of Terminals | 3 | |
| Operating Mode | ENHANCEMENT MODE | |
| Operating Temperature-Max | 150 °C | |
| Package Body Material | PLASTIC/EPOXY | |
| Package Shape | ROUND | |
| Package Style | CYLINDRICAL | |
| Polarity/Channel Type | N-CHANNEL | |
| Power Dissipation-Max (Abs) | 0.83 W | |
| Qualification Status | Not Qualified | |
| Surface Mount | NO | |
| Terminal Finish | MATTE TIN | |
| Terminal Form | THROUGH-HOLE | |
| Terminal Position | BOTTOM | |
| Transistor Application | SWITCHING | |
| Transistor Element Material | SILICON |
This table gives cross-reference parts and alternative options found for BS170. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of BS170, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.
| Part Number | Manufacturer | Composite Price | Description | Compare |
|---|---|---|---|---|
| BS170 | National Semiconductor Corporation | Check for Price | TRANSISTOR 500 mA, 60 V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-92, FET General Purpose Small Signal | BS170 vs BS170 |
| BS170 | Vishay Siliconix | Check for Price | Small Signal Field-Effect Transistor, 0.5A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-92, TO-92-18RM, 3 PIN | BS170 vs BS170 |
| BS170J05Z | Fairchild Semiconductor Corporation | Check for Price | Small Signal Field-Effect Transistor, 0.5A I(D), 60V, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-92, TO-92, 3 PIN | BS170 vs BS170J05Z |
| BS170-J18Z | Texas Instruments | Check for Price | 500mA, 60V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-92 | BS170 vs BS170-J18Z |
| BS170RL1 | Motorola Mobility LLC | Check for Price | 500mA, 60V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-92 | BS170 vs BS170RL1 |
| BS170RLRM | onsemi | Check for Price | 500mA, 60V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-226AA, CASE 29-11, TO-92, 3 PIN | BS170 vs BS170RLRM |
| BS170RLRPG | onsemi | Check for Price | Single N-Channel Small Signal MOSFET 60V, 500mA, 5Ω, TO-92 (TO-226) 5.33mm Body Height, 2000-REEL | BS170 vs BS170RLRPG |
| BS170RLRA | Motorola Mobility LLC | Check for Price | 500mA, 60V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-92 | BS170 vs BS170RLRA |
| BS170RLRAG | onsemi | Check for Price | Single N-Channel Small Signal MOSFET 60V, 500mA, 5Ω, TO-92 (TO-226) 5.33mm Body Height, 2000-REEL | BS170 vs BS170RLRAG |
| BS170RLRPG | Rochester Electronics LLC | Check for Price | 500mA, 60V, N-CHANNEL, Si, SMALL SIGNAL, MOSFET, TO-226AA, LEAD FREE, CASE 29-11, TO-92, 3 PIN | BS170 vs BS170RLRPG |
The maximum safe operating area (SOA) for the BS170 is not explicitly stated in the datasheet. However, it is generally recommended to operate the transistor within the specified voltage and current ratings to ensure reliable operation. Consult the application notes or contact onsemi support for more information.
To ensure the BS170 is properly biased for linear operation, make sure to provide a stable voltage supply, use a suitable bias resistor, and ensure the base-emitter voltage is within the recommended range (typically 0.6-0.8V). Consult the datasheet and application notes for more information on biasing the BS170.
The maximum power dissipation for the BS170 is dependent on the package type and ambient temperature. For the TO-92 package, the maximum power dissipation is 625mW at 25°C. For the SOT-23 package, it is 300mW at 25°C. Consult the datasheet for more information on power dissipation and thermal management.
Yes, the BS170 can be used as a switch, but it is not recommended due to its relatively low current gain (hFE) and high saturation voltage. The BS170 is primarily designed for linear amplifier applications. If you need a switching transistor, consider using a different device specifically designed for switching applications.
To handle ESD protection when working with the BS170, follow proper ESD handling procedures, such as using an ESD wrist strap, ESD mat, or ESD-safe work surface. Ensure that all equipment and tools are properly grounded, and avoid touching the device pins or leads. Consult the datasheet and application notes for more information on ESD protection.