Transistors - Bipolar (BJT) - Single Trans GP BJT NPN 65V 0.1A 3-Pin SOT-23 T/R The BC846 is an NPN general-purpose Bipolar Transistor housed in a surface-mount plastic package.
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Oct 23, 2021
Sampson Hope
Transistors - Bipolar (BJT) - Single Trans GP BJT NPN 65V 0.1A 3-Pin SOT-23 T/R
The BC846 is an NPN general-purpose Bipolar Transistor housed in a surface-mount plastic package. This article mainly introduces circuit, pinout, datasheet and other information about Diodes Incorporated BC846.
BC846A-7-F
| Quantity | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.21953 | $0.22 |
| 10+ | $0.2071 | $2.07 |
| 100+ | $0.19538 | $19.54 |
| 500+ | $0.18432 | $92.16 |
| 1000+ | $0.17389 | $173.89 |
The BC846 is an NPN general-purpose Bipolar Transistor housed in a surface-mount plastic package. It is used in AF input stages and driver applications, suitable for switching and amplification applications. They are housed in the SC−70/SOT−323 which is designed for low power surface mount applications.
Symbol
Footprint
3D Model
• Ideally Suited for Automatic Insertion
• Complementary PNP Types: BC856 – BC858
• For Switching and AF Amplifier Applications
• Totally Lead-Free & Fully RoHS Compliant
• Halogen and Antimony Free. "Green" Device
• Qualified to AEC-Q101 Standards for High Reliability
• PPAP Capable
Diodes Incorporated BC846A-7-F technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated BC846A-7-F.
| Product Attribute | Attribute Value | |
|---|---|---|
| Factory Lead Time | 15 Weeks | |
| Contact Plating | Tin | |
| Mount | Surface Mount | |
| Mounting Type | Surface Mount | |
| Package / Case | TO-236-3, SC-59, SOT-23-3 | |
| Number of Pins | 3Pins | |
| Weight | 7.994566mg | |
| Transistor Element Material | SILICON | |
| Collector-Emitter Breakdown Voltage | 65V | |
| Collector-Emitter Saturation Voltage | 200mV | |
| Number of Elements | 1 Element | |
| hFEMin | 200 | |
| Operating Temperature | -65°C~150°C TJ | |
| Packaging | Tape & Reel (TR) | |
| Published | 2011 | |
| JESD-609 Code | e3 | |
| Pbfree Code | yes | |
| Part Status | Active |
| Product Attribute | Attribute Value | |
|---|---|---|
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | |
| Number of Terminations | 3Terminations | |
| ECCN Code | EAR99 | |
| Additional Feature | HIGH RELIABILITY | |
| Max Power Dissipation | 300mW | |
| Terminal Position | DUAL | |
| Terminal Form | GULL WING | |
| Peak Reflow Temperature (Cel) | 260 | |
| Frequency | 300MHz | |
| Time@Peak Reflow Temperature-Max (s) | 40 | |
| Base Part Number | BC846 | |
| Pin Count | 3 | |
| Element Configuration | Single | |
| Power Dissipation | 310mW | |
| Transistor Application | SWITCHING | |
| Gain Bandwidth Product | 300MHz | |
| Polarity/Channel Type | NPN | |
| Transistor Type | NPN |
| Product Attribute | Attribute Value | |
|---|---|---|
| Collector Emitter Voltage (VCEO) | 65V | |
| Max Collector Current | 100mA | |
| DC Current Gain (hFE) (Min) @ Ic, Vce | 110 @ 2mA 5V | |
| Current - Collector Cutoff (Max) | 15nA | |
| Vce Saturation (Max) @ Ib, Ic | 600mV @ 5mA, 100mA | |
| Transition Frequency | 300MHz | |
| Max Breakdown Voltage | 65V | |
| Collector Base Voltage (VCBO) | 80V | |
| Emitter Base Voltage (VEBO) | 6V | |
| Max Junction Temperature (Tj) | 150°C | |
| Height | 1.1mm | |
| Length | 3.05mm | |
| Width | 1.4mm | |
| REACH SVHC | No SVHC | |
| Radiation Hardening | No | |
| RoHS Status | ROHS3 Compliant | |
| Lead Free | Lead Free |
In the circuit above, Q1's base functions as a level-shifter from 3V-50V to 2.8V. R2 retains the Q1 in its off-state when the input signal is not asserted since the base of Q1 is driven by PNP open-collector outputs. Because speed isn't as critical as power consumption, the output pull-up can be quite large (22k).
This gives a collector current of:
IC(min)=2.8V/22kΩ=0.13mA
This leads to a small required base current, even when underestimating the current gain and providing a 30% error budget:
hFE(min)=100
VBE(sat)=0.75V
IB(min)=1.3*IC(min)/hFE(min)=0.0017mA
As noted above the input voltage at the base relative to the ground is in the range of Vin(min)=3V to Vin(max)=50.4V which imposes the following restrictions on RB:
R1(max)=[Vin(min)−VBE(sat)]/IB(min)=1.3MΩ
According to those calculations, R1=1MΩ and R2=10MΩ would be sufficient.
Layout
| Part Number | Description | Manufacturer |
| BC846A,235TRANSISTORS | BC846 series - 65 V, 100 mA NPN general-purpose transistors TO-236 3-Pin | NXP Semiconductors |
| BC846ATCTRANSISTORS | Small Signal Bipolar Transistor, 0.1A I(C), 65V V(BR)CEO, 1-Element, NPN, Silicon | Zetex / Diodes Inc |
• General-purpose Switching and AF Amplifier Applications
• Power Management
• Industrial
Package
Diodes Incorporated (Nasdaq: DIOD), a prominent global manufacturer and supplier of high-quality application-specific standard products in the discrete, logic, analog, and mixed-signal semiconductor markets is a Standard & Poor's Smallcap 600 and Russell 3000 Index business. Consumer electronics, computing, telecommunication, industrial, and automotive markets are all served by Diodes.
Diodes, rectifiers, transistors, MOSFETs, GPP bridges, GPP rectifiers, protection devices, function-specific arrays, single gate logic, amplifiers and comparators, Hall-effect and temperature sensors, power management devices such as AC-DC converters and controllers, DC-DC switching and linear voltage regulators, voltage references, and LED drivers, as well as special-function devices such as USB power switches, load switches, voltage supervisor For high-speed signals, Diodes additionally, offer timing, connection, switching, and signal integrity solutions.
Download datasheets and manufacturer documentation for BC846A-7-F
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