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1N4148 Diode - (Pack of 10)
The 1N4148 is one of the most widely used high-speed switching signal diodes in electronics. This pack of 10 provides essential components for signal processing, voltage clamping, protection circuits, and general-purpose rectification in low-power applications. Trusted quality from The Engineer Store, Bengaluru - with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Component Type | High-Speed Switching Signal Diode |
| Part Number | 1N4148 |
| Package | DO-35 (Axial Glass Body) |
| Quantity | 10 Pieces |
| Maximum Reverse Voltage (VR) | 100V |
| Maximum Forward Current (IF) | 200mA (continuous) |
| Peak Forward Surge Current | 450mA |
| Forward Voltage Drop (VF) | ~0.7V (typical at 10mA) |
| Maximum Reverse Leakage Current | 25nA at 20V |
| Reverse Recovery Time (trr) | <=4ns (typical) |
| Maximum Power Dissipation | 500mW |
| Operating Temperature Range | -65 degreesC to +175 degreesC |
| Diode Capacitance | 4pF (typical at 0V) |
| Polarity Marking | Black band indicates cathode |
| Mounting | Through-Hole (breadboard & PCB compatible) |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Ultra-Fast Switching Speed: Reverse recovery time of <=4ns makes it ideal for high-frequency switching circuits, pulse generators, and digital logic applications.
- Low Forward Voltage Drop: Approximately 0.7V at typical operating current, ensuring minimal signal loss in series configurations.
- Wide Voltage Rating: 100V maximum reverse voltage provides ample headroom for most signal-level and low-power circuit designs.
- Extremely Low Reverse Leakage: Only 25nA at 20V reverse bias, ensuring clean signal isolation and minimal parasitic current draw.
- Low Junction Capacitance: 4pF typical capacitance enables use in RF and high-frequency applications without significant signal degradation.
- Compact DO-35 Glass Package: Small axial form factor with clear cathode marking band fits easily on breadboards, perfboards, and standard PCB footprints.
- Wide Temperature Range: Operates reliably from -65 degreesC to +175 degreesC, suitable for demanding environmental conditions.
- Industry Standard: The 1N4148 is the most universally recognized and widely stocked signal diode - datasheets, reference designs, and community support are abundant.
- Pack of 10: Convenient quantity for prototyping multiple circuits, classroom use, or keeping your component inventory stocked.
Why Choose This?
- 100% authentic 1N4148 diodes sourced directly from trusted and authorized component distributors
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery available within Bengaluru
- Expert technical support included - get help with circuit design, component selection, and troubleshooting
- Tested and inspected for quality before dispatch to ensure every diode in your pack performs to specification
- Perfect balance of quantity and value - 10 pieces cover most project needs without excess waste
How the 1N4148 Works
The 1N4148 is a silicon planar switching diode constructed using epitaxial technology for fast switching performance. Like all PN-junction diodes, it allows current to flow in one direction (from anode to cathode) when forward biased above its threshold voltage (~0.7V) and blocks current flow when reverse biased up to its rated breakdown voltage of 100V.
What distinguishes the 1N4148 from standard rectifier diodes (such as the 1N4007) is its extremely fast reverse recovery time. When a diode switches from conducting (forward bias) to blocking (reverse bias), there is a brief moment where reverse current flows as stored charge in the junction is depleted. The 1N4148 accomplishes this transition in under 4 nanoseconds, making it suitable for circuits operating at frequencies well into the MHz range.
The black band printed on the glass body indicates the cathode terminal. Current flows from anode to cathode in normal forward-biased operation. When reading a schematic, the cathode corresponds to the bar side of the diode triangle symbol.
Project Ideas
- Flyback / Freewheeling Diode for Relays & Motors
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 1N4148 Diode - (Pack of 10) Online in India
Purchase the 1N4148 Diode - (Pack of 10) online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 1N4148 Diode - (Pack of 10) with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 1N4148 Diode - (Pack of 10) at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
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1N4148 Diode - (Pack of 10)
The 1N4148 is one of the most widely used high-speed switching signal diodes in electronics. This pack of 10 provides essential components for signal processing, voltage clamping, protection circuits, and general-purpose rectification in low-power applications. Trusted quality from The Engineer Store, Bengaluru - with fast shipping, 7-day warranty on manufacturing defects, and dedicated technical support.
Specifications
| Component Type | High-Speed Switching Signal Diode |
| Part Number | 1N4148 |
| Package | DO-35 (Axial Glass Body) |
| Quantity | 10 Pieces |
| Maximum Reverse Voltage (VR) | 100V |
| Maximum Forward Current (IF) | 200mA (continuous) |
| Peak Forward Surge Current | 450mA |
| Forward Voltage Drop (VF) | ~0.7V (typical at 10mA) |
| Maximum Reverse Leakage Current | 25nA at 20V |
| Reverse Recovery Time (trr) | <=4ns (typical) |
| Maximum Power Dissipation | 500mW |
| Operating Temperature Range | -65 degreesC to +175 degreesC |
| Diode Capacitance | 4pF (typical at 0V) |
| Polarity Marking | Black band indicates cathode |
| Mounting | Through-Hole (breadboard & PCB compatible) |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- Ultra-Fast Switching Speed: Reverse recovery time of <=4ns makes it ideal for high-frequency switching circuits, pulse generators, and digital logic applications.
- Low Forward Voltage Drop: Approximately 0.7V at typical operating current, ensuring minimal signal loss in series configurations.
- Wide Voltage Rating: 100V maximum reverse voltage provides ample headroom for most signal-level and low-power circuit designs.
- Extremely Low Reverse Leakage: Only 25nA at 20V reverse bias, ensuring clean signal isolation and minimal parasitic current draw.
- Low Junction Capacitance: 4pF typical capacitance enables use in RF and high-frequency applications without significant signal degradation.
- Compact DO-35 Glass Package: Small axial form factor with clear cathode marking band fits easily on breadboards, perfboards, and standard PCB footprints.
- Wide Temperature Range: Operates reliably from -65 degreesC to +175 degreesC, suitable for demanding environmental conditions.
- Industry Standard: The 1N4148 is the most universally recognized and widely stocked signal diode - datasheets, reference designs, and community support are abundant.
- Pack of 10: Convenient quantity for prototyping multiple circuits, classroom use, or keeping your component inventory stocked.
Why Choose This?
- 100% authentic 1N4148 diodes sourced directly from trusted and authorized component distributors
- 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery available within Bengaluru
- Expert technical support included - get help with circuit design, component selection, and troubleshooting
- Tested and inspected for quality before dispatch to ensure every diode in your pack performs to specification
- Perfect balance of quantity and value - 10 pieces cover most project needs without excess waste
How the 1N4148 Works
The 1N4148 is a silicon planar switching diode constructed using epitaxial technology for fast switching performance. Like all PN-junction diodes, it allows current to flow in one direction (from anode to cathode) when forward biased above its threshold voltage (~0.7V) and blocks current flow when reverse biased up to its rated breakdown voltage of 100V.
What distinguishes the 1N4148 from standard rectifier diodes (such as the 1N4007) is its extremely fast reverse recovery time. When a diode switches from conducting (forward bias) to blocking (reverse bias), there is a brief moment where reverse current flows as stored charge in the junction is depleted. The 1N4148 accomplishes this transition in under 4 nanoseconds, making it suitable for circuits operating at frequencies well into the MHz range.
The black band printed on the glass body indicates the cathode terminal. Current flows from anode to cathode in normal forward-biased operation. When reading a schematic, the cathode corresponds to the bar side of the diode triangle symbol.
Project Ideas
- Flyback / Freewheeling Diode for Relays & Motors
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 1N4148 Diode - (Pack of 10) Online in India
Purchase the 1N4148 Diode - (Pack of 10) online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 1N4148 Diode - (Pack of 10) with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 1N4148 Diode - (Pack of 10) at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.