Overview
The BC857BTQ-7 is a PNP small signal transistor manufactured by Diodes Incorporated. This bipolar junction transistor (BJT) is designed to meet the stringent requirements of automotive applications. It features an epitaxial planar die construction and is packaged in an ultra-small surface mount SOT523 package, making it suitable for space-constrained designs. The transistor is fully RoHS compliant, halogen and antimony free, and qualified to AEC-Q101 standards for high reliability.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Collector-Base Voltage (V_CBO) | -30 V | I_C = -100 mA |
| Collector-Emitter Voltage (V_CE) | -45 V | I_C = -100 mA |
| Collector Current (I_C) | -100 mA | |
| Base-Emitter Voltage (V_BE) | -600 to -820 mV | V_CE = -5.0 V, I_C = -2.0 mA to -10 mA |
| Collector-Emitter Saturation Voltage (V_CE(SAT)) | Varying with I_C, see datasheet for details | |
| Current Gain-Bandwidth Product (f_T) | 100 MHz | V_CE = -5.0 V, I_C = -10 mA, f = 100 MHz |
| Noise Figure (NF) | 10 dB | I_C = -0.2 mA, V_CE = -5.0 V, R_S = 2.0 kΩ, f = 1.0 kHz, BW = 200 Hz |
| Package Type | SOT523 | |
| Weight | Approx. 0.002 grams |
Key Features
- Epitaxial planar die construction for high reliability and performance.
- Ultra-small surface mount SOT523 package, ideal for space-constrained designs.
- Complementary NPN type: BC847BTQ.
- Totally lead-free and fully RoHS compliant.
- Halogen and antimony free, classified as a 'Green' device.
- Qualified to AEC-Q101 standards for automotive applications.
- PPAP (Production Part Approval Process) capable.
- Molded plastic case with UL flammability rating 94V-0.
- Matte tin plated leads, solderable per MIL-STD-202, Method 208.
Applications
The BC857BTQ-7 is primarily designed for use in automotive applications due to its high reliability and compliance with AEC-Q101 standards. It can be used in various automotive systems, including but not limited to:
- Automotive control systems.
- Sensor interfaces.
- Power management circuits.
- General-purpose switching and amplification.
Q & A
- What is the collector-emitter voltage rating of the BC857BTQ-7?
The collector-emitter voltage (V_CE) rating is -45 V.
- What is the maximum collector current for the BC857BTQ-7?
The maximum collector current (I_C) is -100 mA.
- What package type is used for the BC857BTQ-7?
The BC857BTQ-7 is packaged in a SOT523 surface mount package.
- Is the BC857BTQ-7 RoHS compliant?
Yes, the BC857BTQ-7 is fully RoHS compliant and lead-free.
- What are the environmental compliance features of the BC857BTQ-7?
The transistor is halogen and antimony free, and classified as a 'Green' device.
- What standards is the BC857BTQ-7 qualified to?
The BC857BTQ-7 is qualified to AEC-Q101 standards for automotive applications.
- What is the current gain-bandwidth product of the BC857BTQ-7?
The current gain-bandwidth product (f_T) is 100 MHz.
- What is the noise figure of the BC857BTQ-7?
The noise figure (NF) is 10 dB under specified conditions.
- Is the BC857BTQ-7 suitable for high-temperature applications?
The transistor can operate over a wide temperature range, including up to 150°C.
- What is the complementary NPN type for the BC857BTQ-7?
The complementary NPN type is the BC847BTQ.
