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

Diodes Incorporated BAV19WS-7-F

Name: BAV19WS-7-F
Brand: Diodes Incorporated
SKU: BAV19WS-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BAV19WS-7-F

Manufacturer:: Diodes Incorporated

Category:: Single Diodes

Package:: SC-76, SOD-323

Datasheet:: BAV19WS-7-F.pdf

Description:: DIODE GEN PURP 100V 200MA SOD323

Quantity:: RFQ Add To RFQ list

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Inventory:85,826

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Product details

Overview

BAV19WS-7-F from Diodes Incorporated is a surface-mount high-voltage fast-switching diode in SOD323 package, rated for 120 V repetitive peak reverse voltage (V_RRM), 250 mA forward continuous current (I_FM), and 50 ns reverse recovery time (t_RR). It serves as a general-purpose switching diode in DC-DC converter flyback snubbers, signal clamping, and low-power rectification circuits.

For engineers reviewing the BAV19WS-7-F datasheet, BAV19WS-7-F pinout, BAV19WS-7-F application, or BAV19WS-7-F equivalent, key selection criteria include its 120 V V_RRM, 50 ns t_RR, 1.25 V V_F @ 200 mA, 200 mW power dissipation, and SOD323 thermal resistance of 625 °C/W - all critical for high-speed, space-constrained, and thermally sensitive designs.

Technical Context

This diode employs a planar epitaxial silicon structure optimized for fast minority-carrier recombination, enabling 50 ns reverse recovery under 30 mA IF/IR conditions with 100 Ω load. Its 120 V V_RRM and 100 V VRWM support reliable operation in 48 V and 100 V rail transient suppression and auxiliary supply rectification.

The SOD323 package delivers low parasitic capacitance (5.0 pF at 0 V) and minimal junction-to-ambient thermal resistance (625 °C/W on FR-4 with 1-inch² copper pad), making it suitable for high-frequency switching nodes where capacitive loading and localized heating must be tightly controlled.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	120 V - supports isolation and clamping in 48–100 V system rails without breakdown
t_RR	50 ns - enables stable operation up to ~3 MHz switching in snubber and clamp circuits
V_F @ 200 mA	1.25 V - limits conduction loss to ≤250 mW in 200 mA continuous paths
I_FM	250 mA - sufficient for bias supplies, LED drivers, and low-current signal routing
C_T @ 0 V	5.0 pF - minimizes capacitive coupling in RF-sensitive or high-dv/dt gate-drive paths
R_θJA	625 °C/W - requires thermal pad design for sustained >150 mW dissipation at ambient >85°C

Pinout & Package

Package: SOD323 - ultra-compact 1.3 mm × 1.7 mm surface-mount plastic case with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, and UL 94V-0 flammability rating.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry	Connected to lower-potential node in rectifier/clamp; requires trace width ≥0.3 mm for 250 mA
Cathode (marked band)	Forward current exit / reverse blocking terminal	Connected to higher-potential node; cathode band orientation verified per DS30119 page 2 top view

Key Features

Feature	Design Value
Fast switching speed	50 ns t_RR enables use in 1–3 MHz DC-DC snubbers without oscillation or shoot-through risk
High reverse breakdown voltage	120 V V_RRM provides 2× margin over 48 V industrial bus transients (IEC 61000-4-5)
SOD323 surface-mount compatibility	0.004 g mass and JEDEC-compliant footprint allow high-yield placement on fine-pitch PCBs
Lead-free & halogen-free construction	RoHS 3 compliant with <900 ppm Br/Cl and <1000 ppm Sb - meets automotive and medical end-equipment requirements

Applications

Power Supply Snubbing

Signal Level Clamping

Use Scenario: Suppresses voltage spikes across MOSFET drains in 48 V offline flyback converters operating at 500 kHz.

IC Role / Device Role / Timing Role: Fast-recovery clamping diode in RCD snubber network, absorbing leakage inductance energy.

Use Value: 50 ns t_RR prevents reverse conduction overlap during MOSFET turn-on, reducing switching losses by ≥12% vs. 100 ns diodes.

Use Scenario: Limits analog sensor output voltage to microcontroller ADC input range (0–3.3 V).

IC Role / Device Role / Timing Role: Bidirectional ESD protection + DC clamping diode tied between signal line and 3.3 V rail.

Use Value: 5.0 pF C_T avoids signal distortion at ≤10 MHz bandwidth; 120 V V_RRM withstands ±8 kV HBM ESD events.

Low-Current Rectification

Gate Drive Protection

Use Scenario: Rectifies 12 V AC auxiliary winding output in isolated DC-DC controllers.

IC Role / Device Role / Timing Role: Output rectifier delivering ≤200 mA average current to bias supply rail.

Use Value: 250 mA I_FM and 1.25 V V_F ensure ≥85% efficiency at 150 mA load; SOD323 footprint saves board area vs. DO-35.

Use Scenario: Protects half-bridge gate driver IC inputs from negative voltage excursions during shoot-through faults.

IC Role / Device Role / Timing Role: Clamp diode from gate node to ground, conducting only during sub-100 ns fault transients.

Use Value: 50 ns t_RR ensures rapid turn-off after fault, preventing latch-up; 120 V rating covers worst-case Miller-induced overshoot.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BAV20WS-7-F	200 V V_RRM, same t_RR, V_F, and package	Supports 100 V rail systems; higher cost due to tighter process control	Select when 120 V margin is insufficient for surge-prone 48 V industrial environments
1N4148W-7-F	100 V V_RRM, 4 ns t_RR, 150 mA I_FM, same SOD323	Better speed for signal routing; lower voltage/current rating limits power use	Prefer for high-frequency logic clamping; avoid in >100 mA or >100 V applications

Compared with BAV20WS-7-F, the BAV19WS-7-F trades 80 V reverse voltage headroom for lower unit cost and adequate margin in 48 V systems; versus 1N4148W-7-F, it offers +20 V V_RRM and +100 mA I_FM at the expense of slightly slower recovery - optimal for cost-sensitive, medium-speed power switching.

Availability

BAV19WS-7-F is available at Aetrix Electronics and suitable for power supply snubbing, signal clamping, and low-current rectification requiring stable component supply across industrial automation, telecom infrastructure, and consumer electronics production programs.

Supply support for BAV19WS-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 BAV19WS-7-F belongs to Diodes' high-voltage fast-switching diode product line, engineered for reliability-critical 48–100 V power conversion and protection applications in industrial and communications equipment.

FAQ

Is BAV19WS-7-F suitable for automotive applications?

No - BAV19WS-7-F is not AEC-Q200 qualified. Diodes offers automotive-grade equivalents such as BAV19WSQ-7-F (AEC-Q200 qualified, PPAP-capable, manufactured in IATF 16949 facilities). For automotive use, always specify the Q-suffix part number and verify qualification status via Diodes' automotive products portal.

What is the maximum allowable junction temperature during continuous operation?

The absolute maximum junction temperature is +150°C, but derating begins at +25°C ambient. At 25°C, full 200 mW power dissipation is allowed; above that, linear derating applies per Fig. 1 - e.g., at +85°C ambient, max power drops to 120 mW. Thermal design must maintain T_J ≤150°C under worst-case load and airflow conditions.

Does BAV19WS-7-F have a specified reverse recovery charge (Q_rr)?

No - the datasheet (DS30119 Rev. 23) specifies only t_RR = 50 ns under defined test conditions (IF = IR = 30 mA, IRR = 0.1 × IR, RL = 100 Ω) and does not publish Q_rr. For designs sensitive to recovery charge (e.g., high-frequency synchronous rectifiers), consult Diodes' application notes or request characterization data directly from technical support.

Can BAV19WS-7-F replace 1N4148 in existing designs?

Yes, with verification - both use SOD323 and share cathode-band marking, but BAV19WS-7-F has higher V_RRM (120 V vs. 100 V) and I_FM (250 mA vs. 150 mA), while t_RR is slower (50 ns vs. 4 ns). It is safe for rectification and clamping where speed is non-critical; avoid in >10 MHz signal routing or low-voltage logic interfaces where 1N4148's faster recovery is essential.

BAV19WS-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):: 100 V

Current - Average Rectified (Io):: 200mA

Voltage - Forward (Vf) (Max) @ If:: 1.25 V @ 200 mA

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

Reverse Recovery Time (trr):: 50 ns

Current - Reverse Leakage @ Vr:: 100 nA @ 100 V

Capacitance @ Vr, F:: 5pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-323

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

BAV19WS-7-F FAQ

1.How can I place an order for BAV19WS-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for BAV19WS-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 BAV19WS-7-F reliable?

The price and inventory of BAV19WS-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 BAV19WS-7-F is usually 5 days.

3.What payment methods are accepted for BAV19WS-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV19WS-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BAV19WS-7-F?

BAV19WS-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BAV19WS-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 BAV19WS-7-F?

For technical support, including BAV19WS-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV19WS-7-F requirements.

6.How does Aetrix verify that BAV19WS-7-F is sourced from the original manufacturer or authorized distributors?

All BAV19WS-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 BAV19WS-7-F meets industry standards.

7.What is the process for return or replacement of BAV19WS-7-F?

All BAV19WS-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV19WS-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 BAV19WS-7-F part is unused and in its original packaging.

Return procedure for BAV19WS-7-F:

1.Submit a request within 90 days.

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

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