Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Diodes Incorporated 1N4148WS-7-F

Name: 1N4148WS-7-F
Brand: Diodes Incorporated
SKU: 1N4148WS-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: 1N4148WS-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: SC-76, SOD-323

Datasheet:: 1N4148WS-7-F.pdf

Description:: DIODE GEN PURP 75V 150MA SOD323

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:171,189

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

1N4148WS-7-F from Diodes Incorporated is a surface-mount fast-switching silicon signal diode in SOD323 package, rated for 75 V peak repetitive reverse voltage, 300 mA forward current, and 4.0 ns reverse recovery time. It serves as a general-purpose clamping, logic-level switching, and waveform shaping device in high-speed digital interfaces, ESD protection networks, and low-power analog signal routing.

For engineers reviewing the 1N4148WS-7-F datasheet, 1N4148WS-7-F pinout, 1N4148WS-7-F application, or 1N4148WS-7-F equivalent, key selection criteria include reverse recovery time under 4.0 ns, forward voltage ≤0.855 V at 10 mA, junction-to-ambient thermal resistance of 625 °C/W, and compatibility with automated SMT assembly on FR-4 PCBs with 2 oz copper pads.

Technical Context

This diode operates as a unidirectional PN-junction rectifier optimized for high-speed transient response. Its 4.0 ns reverse recovery time enables reliable operation in 10–50 MHz clocked logic circuits and pulse-shaping networks where charge storage must be minimized.

Thermal performance is defined by a 625 °C/W junction-to-ambient resistance on standard FR-4 layout, and electrical behavior is characterized across –55°C to +150°C operating range with guaranteed 75 V reverse breakdown at 1 µA leakage and <2.0 pF junction capacitance at 0 V bias.

Key Specifications

Parameter	Value and Actual Design Meaning
Reverse Recovery Time	4.0 ns - Enables clean edge transitions in >10 MHz digital signal routing without tail current distortion
Peak Repetitive Reverse Voltage	75 V - Supports clamping in 5 V, 12 V, and 24 V logic and interface rails
Forward Voltage @ 10 mA	≤0.855 V - Minimizes conduction loss in low-voltage signal path switching
Junction Capacitance	≤2.0 pF @ 0 V - Preserves signal integrity in RF-coupled and high-frequency timing paths
Thermal Resistance θ_JA	625 °C/W - Requires minimal copper area for thermal management in space-constrained layouts
Operating Temperature	–55°C to +150°C - Qualified for industrial and extended-temperature embedded control environments

Pinout & Package

Package: SOD323 - ultra-compact surface-mount plastic package (1.30 mm × 1.70 mm × 0.90 mm), moisture sensitivity level 1, matte tin-plated alloy 42 leadframe, cathode band polarity marking.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry node	Connected to lower-potential side of signal path; enables conduction when biased positive relative to cathode
Cathode	Forward current exit node / reverse blocking terminal	Marked with band; ties to higher-potential rail in clamping or protection configurations

Key Features

Feature	Design Value
Fast switching speed	4.0 ns t_RR supports clean signal edge fidelity in high-frequency logic and sampling circuits
Small footprint	SOD323 package occupies <2.2 mm² board area-ideal for dense portable and IoT PCB layouts
Low forward voltage	V_F ≤ 0.855 V @ 10 mA reduces power loss and self-heating in battery-powered signal chains
Green compliance	Halogen- and antimony-free, RoHS 3 compliant (≤900 ppm Br/Cl, ≤1000 ppm Sb) for eco-sensitive designs

Applications

Logic-Level Clamping

Digital Input Protection

Use Scenario: Preventing overvoltage excursions on microcontroller GPIO pins during hot-swap or ESD events.

IC Role / Device Role: Bidirectional clamping diode tied between I/O line and V_CC/GND rails.

Use Value: Limits transient voltages to within ±0.85 V of rail levels using low-V_F conduction, preserving input stage integrity.

Use Scenario: Shielding UART, SPI, or I²C lines from coupling-induced spikes in noisy industrial environments.

IC Role / Device Role: Series-connected signal path switch for transient isolation and DC blocking.

Use Value: 4.0 ns t_RR ensures minimal data corruption during fast-rising interference pulses up to 50 MHz.

Waveform Shaping

Low-Power Rectification

Use Scenario: Converting TTL/CMOS square waves into clean trigger pulses for monostable multivibrators or ADC sampling clocks.

IC Role / Device Role: Edge-detecting clipping diode in passive differentiator networks.

Use Value: ≤2.0 pF capacitance avoids high-frequency roll-off; sub-1 V V_F maintains amplitude accuracy in mV-range signals.

Use Scenario: Supplying bias current to op-amp reference nodes or sensor excitation circuits in energy-harvesting systems.

IC Role / Device Role: Half-wave rectifier in ultra-low-current (<1 mA) precision DC generation.

Use Value: 25 nA IR at 20 V reverse bias ensures negligible leakage error in µA-level bias paths.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fast-switching diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BAV16WS-7-F	Identical SOD323 package, same 4.0 ns t_RR, but slightly higher V_F (0.87 V @ 10 mA vs. 0.855 V)	No functional difference in clamping or logic switching; minor V_F delta irrelevant below 10 mA	Select BAV16WS-7-F if dual sourcing or legacy BOM alignment is required
1N4148W-7-F	SOD123 package (larger: 2.7 mm × 1.6 mm), identical electrical specs, 600 °C/W θ_JA	Less suitable for ultra-dense layouts; better thermal margin in high-IF scenarios	Choose 1N4148W-7-F only when board space allows larger footprint and higher power dissipation is anticipated

Compared with BAV16WS-7-F and 1N4148W-7-F, the 1N4148WS-7-F delivers optimal balance of speed, size, and thermal efficiency for space-constrained high-frequency signal conditioning-making it preferred for modern IoT and portable electronics where SOD323's 2.2 mm² footprint and 4.0 ns t_RR are decisive.

Availability

1N4148WS-7-F is available at Aetrix Electronics and suitable for logic-level clamping, digital input protection, waveform shaping, and low-power rectification requiring stable component supply across industrial automation, consumer IoT, and medical diagnostics platforms.

Supply support for 1N4148WS-7-F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.

The 1N4148WS belongs to Diodes' general-purpose fast-switching diode product line, engineered specifically for high-reliability, high-volume SMT applications demanding consistent t_RR, low V_F, and green compliance in compact packages.

FAQ

What is the maximum reverse voltage rating for 1N4148WS-7-F?

The 1N4148WS-7-F has a peak repetitive reverse voltage (V_RRM) of 75 V and a non-repetitive peak reverse voltage (V_RM) of 100 V. These ratings define safe continuous and transient blocking capability respectively, validated per JEDEC test conditions with 1 µA leakage threshold at 75 V.

Is 1N4148WS-7-F suitable for automotive applications?

The standard 1N4148WS-7-F is not AEC-Q101 qualified. For automotive use, Diodes offers the 1N4148WSQ-7-F variant-identical in all electrical and mechanical specs but manufactured in IATF16949-certified facilities and PPAP-capable with full change control documentation.

How does the SOD323 package affect thermal performance?

The SOD323 package delivers a junction-to-ambient thermal resistance (θ_JA) of 625 °C/W on a standard FR-4 board with 1-inch-square 2 oz copper pad. This value assumes minimal copper area; adding thermal vias or larger copper pours can reduce θ_JA by up to 30%, critical for sustained 150 mA operation.

What is the typical reverse leakage current at elevated temperature?

At 75 V reverse bias and +150°C junction temperature, the 1N4148WS-7-F exhibits ≤50 µA peak reverse current (I_RM). At +125°C and 25 V bias, leakage drops to ≤30 µA-confirming stable blocking behavior across full industrial temperature range.

1N4148WS-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: SC-76, SOD-323

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 75 V

Current - Average Rectified (Io):: 150mA

Voltage - Forward (Vf) (Max) @ If:: 1.25 V @ 150 mA

Speed:: Small Signal =< 200mA (Io), Any Speed

Reverse Recovery Time (trr):: 4 ns

Current - Reverse Leakage @ Vr:: 1 µA @ 75 V

Capacitance @ Vr, F:: 2pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

Operating Temperature - Junction:: -65°C ~ 150°C

1N4148WS-7-F FAQ

1.How can I place an order for 1N4148WS-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N4148WS-7-F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 1N4148WS-7-F reliable?

The price and inventory of 1N4148WS-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4148WS-7-F is usually 5 days.

3.What payment methods are accepted for 1N4148WS-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4148WS-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N4148WS-7-F?

1N4148WS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N4148WS-7-F order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 1N4148WS-7-F?

For technical support, including 1N4148WS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4148WS-7-F requirements.

6.How does Aetrix verify that 1N4148WS-7-F is sourced from the original manufacturer or authorized distributors?

All 1N4148WS-7-F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N4148WS-7-F meets industry standards.

7.What is the process for return or replacement of 1N4148WS-7-F?

All 1N4148WS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with 1N4148WS-7-F, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 1N4148WS-7-F part is unused and in its original packaging.

Return procedure for 1N4148WS-7-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…