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Name: 1N4148 BK
Brand: Central Semiconductor Corp
SKU: 1N4148 BK
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Central Semiconductor Corp 1N4148 BK

Part No.:: 1N4148 BK

Manufacturer:: Central Semiconductor Corp

Package:: DO-204AH, DO-35, Axial

Datasheet:: 1N4148 BK.pdf

Description:: DIODE GP 100V 150MA DO35

In Stock:: 3697

Quantity:: Add To Cart

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1N4148 BK Specifications

Packaging:
Bulk
Series:
RoHS:
RoHS
Speed:
Small Signal =< 200mA (Io), Any Speed
Diode Type:
Standard
Part Status:
Obsolete
Mounting Type:
Through Hole
Capacitance @ Vr, F:
4pF @ 0V, 1MHz
Reverse Recovery Time (trr):
4 ns
Current - Reverse Leakage @ Vr:
25 nA @ 20 V
Voltage - DC Reverse (Vr) (Max):
100 V
Current - Average Rectified (Io):
150mA
Operating Temperature - Junction:
-65°C ~ 200°C
Voltage - Forward (Vf) (Max) @ If:
1 V @ 10 mA

1N4148 BK this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including 1N4148 BK price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for 1N4148 BK to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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1N4148 BK information

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1N4148 BK Typical application Circuitry

The 1N4148 BK is a variant of the popular 1N4148 high-speed switching diode series. Crafted for rapid switching activities, this diode is a staple in many electronics projects and products.

Function:

Essentially, the 1N4148 BK is designed to swiftly turn on and off, making it perfect for digital circuits where high-speed rectification is critical.

Applications:

The versatility of the 1N4148 BK is evident in its vast application range, from digital logic circuits, voltage clamping, protection circuits, to wave shaping in RF (Radio Frequency) solutions.

Key Specifications:

- Peak Reverse Voltage: Typically around 100V.

- Forward Current: Usually rated up to 300mA.

- Switching Time: Impressively swift, often less than 4ns.

- Forward Voltage Drop: Roughly 1V under regular conditions.

Detailed Application – Digital Logic Level Shifting:

1. Initial Setup: Picture a scenario where you need to interface a 5V digital logic circuit with a 3.3V one.

2. Incorporating the 1N4148 BK: In this level-shifting configuration, the 1N4148 BK diode is placed in series with the 5V logic output. The anode of the diode connects to the 5V logic output, and its cathode provides the shifted output.

3. Resistor Addition: Attach a pull-up resistor, approximately 10kΩ, between the cathode of the 1N4148 BK and the 3.3V supply. This ensures that when the 5V logic is low (0V), the diode is non-conductive, and the shifted output is pulled up to 3.3V through the resistor.

4. Resultant Logic Levels: With the 1N4148 BK in place, when the 5V logic outputs a high signal, the diode becomes forward-biased, causing a voltage drop and effectively shifting the logic level down to a safe level for the 3.3V circuit.

Considerations when Designing with 1N4148 BK:

1. Voltage Ratings: It's paramount to ensure that the 1N4148 BK isn't subjected to voltages exceeding its peak reverse voltage. Such instances can degrade the diode or result in immediate failure.

2. Placement: To harness its swift switching potential, the 1N4148 BK should be placed close to the components it interacts with. This minimizes parasitic capacitance and other undesirable effects.

3. Thermal Concerns: Prolonged operation, especially near its maximum rated current, can cause the 1N4148 BK to heat up. Proper ventilation or heatsinking might be necessary in dense or closed environments.

4. Avoid Inductive Loads: When used near inductive components, appropriate care must be taken. Inductive loads can generate voltage spikes that might damage the diode.

To encapsulate, the 1N4148 BK epitomizes efficiency in high-speed switching scenarios, granting designers a robust and reliable tool for an array of applications.

1N4148 BK FAQ

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3. Are the 1N4148 BK price and inventory displayed accurate?

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6. What is the process for return or replacement of 1N4148 BK?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 1N4148 BK we delivered, we will accept the replacement or return of the 1N4148 BK only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of 1N4148 BK.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations