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Diodes Incorporated BAV19W-7-F
- Part No.:
- BAV19W-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAV19W-7-F.pdf
- Description:
- DIODE GEN PURP 100V 400MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:19,982
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Product details
Overview
BAV19W-7-F from Diodes Incorporated is a surface-mount fast-switching silicon switching diode in SOD-123 package, rated for 100 V peak repetitive reverse voltage (VRRM), 400 mA forward current (IF), and 50 ns reverse recovery time (tRR). It delivers high-speed signal routing and clamping in low-power digital logic interfaces, power supply flyback protection, and ESD-tolerant input conditioning circuits.
For engineers reviewing the BAV19W-7-F datasheet, BAV19W-7-F pinout, BAV19W-7-F application, or BAV19W-7-F equivalent, key selection criteria include its 100 V reverse blocking capability, 1.25 V max forward voltage at 200 mA, 5.0 pF junction capacitance at 0 V, SOD-123 footprint compatibility, and commercial-grade RoHS/Green compliance - all critical for space-constrained, high-reliability signal path designs.
Technical Context
This diode operates as a unidirectional, low-capacitance, fast-recovery switching element optimized for general-purpose signal routing and transient suppression. Its 50 ns tRR enables reliable operation in 1–10 MHz digital edge detection and pulse shaping circuits, while its 100 µA max reverse leakage at 100 V supports stable DC bias integrity.
The device uses an epitaxial planar construction with cathode band polarity marking and matte tin-plated Alloy 42 leads. Thermal resistance of 500 °C/W (RθJA) reflects its suitability for low-power dissipation (<250 mW) on standard FR-4 PCBs with minimal copper area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Supports DC blocking and transient clamping up to 100 V in power rail monitoring and interface protection |
| IF | 400 mA continuous - Handles logic-level signal switching and low-current flyback paths without thermal derating |
| tRR | 50 ns - Enables clean edge transitions in 1–5 MHz clock distribution and data line steering |
| CT | 5.0 pF at 0 V - Minimizes signal loading in high-impedance analog sensing and RF detector inputs |
| VF | 1.25 V max at 200 mA - Ensures low conduction loss in 3.3 V/5 V level-shifting and active pull-up circuits |
| RθJA | 500 °C/W - Requires no heatsinking on standard 1 oz copper FR-4 with recommended SOD-123 pad layout |
Pinout & Package
Package: SOD-123 - Surface-mount plastic case (UL 94V-0), 0.01 g mass, moisture sensitivity level 1, cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node in clamping, rectification, or steering configurations |
| Cathode (marked) | Forward current exit / reverse blocking terminal | Connected to higher-potential node; defines polarity for ESD protection and reverse-biased isolation |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching speed | 50 ns reverse recovery time enables use in >1 MHz digital signal routing without distortion |
| High reverse breakdown voltage | 120 V non-repetitive peak rating (VRM) provides margin against surge transients in industrial I/O |
| SOD-123 surface-mount package | Compact 2.65 mm × 1.55 mm footprint supports automated placement and high-density PCB layouts |
| Lead-free & RoHS 3 compliant | Fully compliant with EU Directive 2015/863/EU; no intentionally added lead, halogen, or antimony |
Applications
| Digital Logic Interface Protection | Low-Voltage Power Supply Clamping |
|---|---|
Use Scenario: Protecting CMOS microcontroller GPIO pins from inductive kickback and ESD events during relay or solenoid control. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between I/O line and VCC/GND rails. Use Value: 5.0 pF capacitance avoids signal integrity degradation; 50 ns tRR prevents latch-up during rapid state transitions. |
Use Scenario: Suppressing flyback voltage spikes across inductors in 3.3 V/5 V buck converter feedback or gate-drive paths. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current recirculation path during switch-off. Use Value: 1.25 V max VF minimizes conduction loss; 100 V VRRM covers typical 24 V system surges with safety margin. |
| Signal Level Translation | RF Detector Input Conditioning |
Use Scenario: Bidirectional level shifting between 1.8 V and 3.3 V domains using passive diode-resistor networks. IC Role / Device Role / Timing Role: Forward-biased switching element enabling controlled voltage drop and directionality. Use Value: Tight VF consistency (1.0–1.25 V) ensures predictable offset; SOD-123 size allows placement adjacent to ICs. |
Use Scenario: Rectifying weak RF envelope signals (e.g., 433 MHz ISM band receivers) before analog-to-digital conversion. IC Role / Device Role / Timing Role: Low-capacitance detector diode operating near zero-bias for maximum sensitivity. Use Value: 5.0 pF CT preserves high-frequency response; low IR (≤100 nA at 25°C) maintains DC accuracy in high-Z integrator stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fast-switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4148W-7-F | Higher VRRM (100 V same), but slower tRR (4 ns vs. 50 ns), higher CT (4 pF vs. 5 pF), same SOD-123 | Better for <100 MHz RF switching; less suitable for 1–10 MHz digital edge handling due to lower stored charge | Select when ultra-fast recovery dominates over low capacitance or when legacy 1N4148 design migration is required |
| BAV20W-7-F | Higher VRRM (150 V), identical tRR (50 ns), same package and thermal specs | Preferred for 24–48 V industrial bus protection where 100 V margin is insufficient | Choose when reverse voltage stress exceeds 100 V but same speed, footprint, and cost profile are needed |
Compared with BAV20W-7-F and 1N4148W-7-F, the BAV19W-7-F offers optimal balance of 100 V blocking, 50 ns switching, and 5.0 pF capacitance for mid-voltage digital interface protection - making it more suitable than BAV20W for 5–24 V systems and more robust than 1N4148W in moderate-speed, low-capacitance signal routing.
Availability
BAV19W-7-F is available at Aetrix Electronics and suitable for digital I/O protection, low-voltage power supply clamping, and signal level translation requiring stable component supply across industrial control, consumer electronics, and embedded sensor interface programs.
Supply support for BAV19W-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, specializing in high-reliability, industry-standard components for power management, signal integrity, and protection.
The BAV19W belongs to Diodes' general-purpose switching diode product line, designed specifically for cost-sensitive, high-volume applications demanding consistent fast switching, compact packaging, and full environmental compliance.
FAQ
What is the maximum junction temperature for BAV19W-7-F?
The BAV19W-7-F has an operating junction temperature range of –55 °C to +150 °C. This allows reliable operation in extended-temperature industrial environments and under transient power dissipation conditions, provided the 250 mW power limit and thermal resistance (500 °C/W) are respected with proper PCB layout.
Is BAV19W-7-F qualified for automotive use?
No, BAV19W-7-F is a commercial-grade part. For automotive applications, Diodes offers the AEC-Q101-qualified BAV19WQ-7-F variant, which undergoes additional stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities.
Can BAV19W-7-F replace 1N4148 in existing designs?
Yes, in most cases - both are SOD-123 packaged fast-switching diodes with similar VF and tRR. However, BAV19W-7-F has higher VRRM (100 V vs. 75 V) and slightly higher CT (5.0 pF vs. 4 pF), so verify reverse voltage margin and high-frequency loading in sensitive RF or timing circuits.
What does the "-7-F" suffix indicate in BAV19W-7-F?
The "-7-F" denotes tape-and-reel packaging: 3,000 units per reel, with "F" indicating Diodes Incorporated's green, halogen-free, RoHS-compliant finish. The "-7" refers to the standard 8 mm carrier tape width and EIA-481-compliant orientation.
BAV19W-7-F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 400mA
- 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-123
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAV19W-7-F FAQ
1.How can I place an order for BAV19W-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV19W-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 BAV19W-7-F reliable?
The price and inventory of BAV19W-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 BAV19W-7-F is usually 5 days.
3.What payment methods are accepted for BAV19W-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV19W-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV19W-7-F?
BAV19W-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV19W-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 BAV19W-7-F?
For technical support, including BAV19W-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV19W-7-F requirements.
6.How does Aetrix verify that BAV19W-7-F is sourced from the original manufacturer or authorized distributors?
All BAV19W-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 BAV19W-7-F meets industry standards.
7.What is the process for return or replacement of BAV19W-7-F?
All BAV19W-7-F units undergo pre-shipment inspection (PSI). If there is an issue with BAV19W-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 BAV19W-7-F part is unused and in its original packaging.
Return procedure for BAV19W-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV19W-7-F Tags
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