The shipping fee depends on your address
Standard: 9-15 business days,fee is down to $3.99
Express: 4-7 business days,fee is down to $5.99
WE'RE READY TO BUILD A CUSTOM PRODUCT FOR YOU.
If you're looking for a custom product, we can help. Kindly contact us via email support@keszoox.com and send us the details for your need, then we'll let you know how we can deliver the right solution.We make into production usually Within 1 - 3 Bussiness Days.
Expect customization orders.General purpose NPN transistor for moderate power amplification and switching.
The PN2222A are a good general purpose NPN transistor for low to moderate power amplification and switching.
The PN2222A are a good inexpensive general purpose NPN transistor for low to moderate power amplification and switching and should be part of every parts bin.
These can be very handy when you need to boost the output of a uC pin to drive something that it can not drive directly. NPN transistors are generally used in low-side switching applications where they are connected between the load and ground.
Below is an example circuit that uses a PN2222 transistor to create a simple Continuity Checker for testing to see if two points have continuity between them. This could be a dead short or they could have some resistance between them, but not be open circuit.
When there is continuity between the two probes, the PN2222 transistor base is pulled high and so the transistor switches on and provides the ground path for the LED to light and for the buzzer to sound.
When there is no continuity, the base is left unconnected and the transistor is switched off. A weak pull-down resistor from the base to the ground could be added to ensure that the transistor stays off when the leads are floating and subject to picking up electrical noise. That resistor could also be selected so that the base is biased on only when the circuit resistance is less than some value by creating a voltage divider.
Notes:
Maximum Ratings | ||
VCEO | Collector-Emitter Voltage | 40V |
VCBO | Collector-Base Voltage | 75V |
IC | Collector Current – Continuous | 600mA |
Package | TO-92-3 | |
Package Type | Plastic, 3-lead, through hole | |
Mfr | Fairchild / ON Semi | |
Datasheet | PN2222A |
WE'RE READY TO BUILD A CUSTOM PRODUCT FOR YOU.
All orders are dispatched from our warehouse. The shipments are fully tracked—from our door to yours. Please allow 3-5 business days for your order to be processed in addition to the shipping times below.
Standard: 9-15 business days. Express: 4-7 business days.
Please note that shipping providers are extremely busy during this time, and some orders might experience a delay on top of usual delivery times. If your order is late, please allow 5-10 days more than indicated in standard shipping times before contacting our customer service. Thank you for your understanding.
All orders are 100% tracked. You’ll receive an email with a tracking number and a link to track your parcel once your order leaves our warehouse. Please allow 24-48 hours for the tracking link to start showing shipping information.
Receive our latest updates about our products & promotions.
Thanks for subscribing!
This email has been registered!