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Taiwan Semiconductor Corporation BAV19W-G RHG
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- Part No.:
- BAV19W-G RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
BAV19W-G RHG.pdf
- Description:
- DIODE GEN PURP 100V 200MA SOD123
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
BAV19W-G RHG from Taiwan Semiconductor is a high-voltage fast-switching silicon switching diode in SOD-123 package, rated for 120 V peak reverse voltage (VRM), 500 mW power dissipation, and 200 mA average rectified output current (IO), with trr < 50 ns and low reverse leakage (IR ≤ 0.1 µA at VR = 100 V). It serves as a signal-level clamp or flyback snubber in DC-DC converter feedback paths.
For engineers reviewing the BAV19W-G RHG datasheet, BAV19W-G RHG pinout, BAV19W-G RHG application, or BAV19W-G RHG equivalent, key selection criteria include verified trr < 50 ns, VRM = 120 V, SOD-123 thermal resistance (RθJA = 250 °C/W), low IR at high VR, and halogen-free green compound compliance.
Technical Context
This diode operates as a unidirectional, single-junction PN device optimized for high-speed switching in low-energy signal and control circuits. Its design targets minimal charge storage and rapid carrier recombination, enabling reliable operation in 100–500 kHz switching regulators and ESD-protected I/O interfaces.
Thermal performance is defined by RθJA = 250 °C/W under standard JEDEC conditions, with guaranteed solderability at 260 °C/10 s and moisture sensitivity level 1. Polarity is marked by a cathode band on the SOD-123 case, and terminals are matte tin-plated for MIL-STD-202/Method 208 compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRM | 120 V - Maximum non-repetitive peak reverse voltage before breakdown; sets safe operating limit in flyback clamp circuits |
| trr | < 50 ns - Measured at IF = IR = 30 mA, RL = 100 Ω, IRR = 3 mA; enables use in ≥200 kHz switching topologies |
| IR @ VR = 100 V | ≤ 0.1 µA - Low leakage preserves bias stability in high-impedance sensing nodes |
| VF @ IF = 200 mA | 1.25 V max - Forward drop impacts conduction loss in low-duty-cycle snubbers |
| RθJA | 250 °C/W - Junction-to-ambient thermal resistance under standard PCB pad layout; limits continuous power to ~200 mW at TA = 70 °C |
| Package | SOD-123 - Surface-mount plastic case with bend leads; footprint compatible with IPC-7351B SOIC-123 standard |
Pinout & Package
Package: SOD-123 small-outline plastic package with cathode-indicating band; dimensions: 3.55–3.85 mm (L) × 1.4–1.8 mm (W) × 0.95–1.35 mm (H); weight 10.5 ± 0.5 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch drain or inductor end) in clamping configurations |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; tied to higher-potential rail (e.g., VCC or transformer primary) to absorb inductive kick |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching | trr < 50 ns ensures minimal dead-time loss and reduced EMI in high-frequency DC-DC converters |
| High VRM rating | 120 V VRM supports 24 V and 48 V system-level transient suppression without derating |
| Halogen-free green compound | G-suffix confirms RoHS-compliant, Pb-free, and halogen-free molding compound per IEC 61249-2-21 |
| MSL Level 1 | No floor life limitation; suitable for standard SMT assembly without dry-pack or baking requirements |
| Guaranteed 260°C solderability | Validated for lead-free reflow per J-STD-020; eliminates post-assembly solder joint reliability concerns |
Applications
| Switch-Mode Power Supply Snubber | ESD-Protected Signal Line Clamp |
|---|---|
Use Scenario: Placed across MOSFET drain-source or transformer primary to suppress voltage spikes during turn-off. IC Role / Device Role / Timing Role: Passive clamping diode absorbing inductive energy via fast recovery and low trr. Use Value: Limits peak voltage to ≤120 V while dissipating <500 mW, preventing MOSFET avalanche failure. | Use Scenario: Connected between data line (e.g., UART TX/RX) and ground with series resistor to shunt ESD transients. IC Role / Device Role / Timing Role: Low-capacitance (CJ not specified but typical <2 pF for SOD-123 HV diodes), fast-clamp element. Use Value: Sub-50 ns response captures >8 kV HBM transients before IC input structures are damaged. |
| Low-Power Flyback Feedback Path | High-Voltage Logic-Level Translation |
Use Scenario: Isolates optocoupler input side from secondary-side error amplifier output in isolated flyback controllers. IC Role / Device Role / Timing Role: Signal-level rectifier ensuring unidirectional current flow into opto-LED anode. Use Value: 0.1 µA IR at 100 V maintains stable bias under light-load conditions without drift. | Use Scenario: Level-shifting logic signals from 3.3 V microcontroller to 24 V industrial I/O modules. IC Role / Device Role / Timing Role: High-voltage interface diode blocking reverse current while passing forward pulses. Use Value: 120 V VRM withstands bus transients; 1.25 V VF ensures clean edge propagation with minimal delay. |
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 |
|---|---|---|---|
| BAV20W-G | VRM = 200 V, trr < 50 ns, VF = 1.25 V max at 200 mA | Higher VRM allows use in 48 V–72 V systems; same SOD-123 footprint and thermal profile | Select when circuit transients exceed 120 V but layout space and thermal constraints match BAV19W-G RHG |
| 1N4148W | VRM = 100 V, trr ≈ 4 ns, IO = 300 mA, PD = 500 mW, SOD-123 | Lower VRM but faster trr; optimized for signal integrity over voltage margin | Prefer where speed dominates over voltage headroom-e.g., clock line protection below 100 V rails |
Compared with BAV19W-G RHG, BAV20W-G trades higher voltage margin for identical speed and thermal behavior, while 1N4148W sacrifices VRM for ultrafast recovery-making each optimal for distinct voltage/speed trade-offs in compact SOD-123 layouts.
Availability
BAV19W-G RHG is available at Aetrix Electronics and suitable for switch-mode power supply snubbers, ESD-protected signal clamps, isolated feedback paths, and industrial logic-level translation requiring stable component supply and full RoHS/halogen-free compliance.
Supply support for BAV19W-G RHG 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving industrial, computing, and consumer markets since 1979.
The BAV19W-G RHG belongs to TSC's Small Signal Product family, engineered specifically for high-speed, high-voltage switching in space-constrained surface-mount applications where reliability, consistency, and green material compliance are mandatory.
FAQ
What is the maximum peak reverse voltage rating for BAV19W-G RHG?
The BAV19W-G RHG has a maximum peak reverse voltage (VRM) rating of 120 V. This value is specified in the Absolute Maximum Ratings table and defines the highest non-repetitive reverse voltage the diode can block without breakdown. It is critical for selecting appropriate clamping margins in flyback or boost converter designs where BAV19W-G RHG is used as a snubber or clamp diode.
Is BAV19W-G RHG suitable for lead-free reflow soldering processes?
Yes, BAV19W-G RHG is qualified for lead-free reflow soldering at 260 °C for 10 seconds, per J-STD-020. Its matte tin-plated terminals meet MIL-STD-202, Method 208, and its MSL Level 1 rating means no dry-pack or baking is required prior to assembly-making BAV19W-G RHG fully compatible with standard high-volume SMT lines.
Does BAV19W-G RHG have a specified junction capacitance (CJ)?
No, the official datasheet for BAV19W-G RHG does not list a measured or typical junction capacitance value. While CJ is commonly specified for RF or high-speed digital clamping applications, this parameter is omitted in TSC's D1603 revision documentation. For designs sensitive to capacitive loading, empirical measurement or substitution with a part explicitly specifying CJ (e.g., 1N4148W) may be necessary.
What does the "G" suffix in BAV19W-G RHG indicate?
Per TSC's ordering information, the "G" suffix in BAV19W-G RHG denotes halogen-free green compound packaging. This confirms the device uses a RoHS-compliant, Pb-free, and chlorine/bromine-free molding compound meeting IEC 61249-2-21 standards-critical for environmental compliance in EU, Japan, and other regulated markets.
How does BAV19W-G RHG differ from BAV21W-G in terms of electrical ratings?
BAV19W-G RHG is rated for VRM = 120 V, while BAV21W-G is rated for VRM = 250 V. Both share identical trr < 50 ns, VF ≤ 1.25 V at 200 mA, and SOD-123 packaging. The BAV19W-G RHG offers tighter voltage margin for cost-sensitive 24–48 V systems, whereas BAV21W-G extends protection to higher-bus industrial applications-no change in footprint or thermal behavior is required when upgrading.
BAV19W-G RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- 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):
- 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-123
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAV19W-G RHG FAQ
1.How can I place an order for BAV19W-G RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV19W-G RHG 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-G RHG reliable?
The price and inventory of BAV19W-G RHG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV19W-G RHG is usually 5 days.
3.What payment methods are accepted for BAV19W-G RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV19W-G RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV19W-G RHG?
BAV19W-G RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV19W-G RHG 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-G RHG?
For technical support, including BAV19W-G RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV19W-G RHG requirements.
6.How does Aetrix verify that BAV19W-G RHG is sourced from the original manufacturer or authorized distributors?
All BAV19W-G RHG 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-G RHG meets industry standards.
7.What is the process for return or replacement of BAV19W-G RHG?
All BAV19W-G RHG units undergo pre-shipment inspection (PSI). If there is an issue with BAV19W-G RHG, 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-G RHG part is unused and in its original packaging.
Return procedure for BAV19W-G RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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