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Taiwan Semiconductor Corporation BAV19W RHG
- Part No.:
- BAV19W RHG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123F
- Datasheet:
-
BAV19W RHG.pdf
- Description:
- DIODE GP 250V 200MA SOD123F
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
BAV19W RHG from Taiwan Semiconductor is a surface-mount high-voltage switching diode in SOD-123F package, rated for 100 V repetitive peak reverse voltage (VRRM), 410 mW power dissipation, and 200 mA mean forward current (IO). It delivers fast 4 ns reverse recovery time (trr) and low 1.5–1.7 V forward voltage at 100 mA, enabling use in DC-DC converter flyback snubbers and high-frequency signal clamping.
For engineers reviewing the BAV19W RHG datasheet, BAV19W RHG pinout, BAV19W RHG application, or BAV19W RHG equivalent, key selection criteria include verified VRRM = 100 V, trr = 4 ns, thermal resistance RθJA = 375 °C/W, moisture sensitivity level 1, and halogen-free green compound packaging confirmed per DS_S1501003 E15.
Technical Context
This small-signal switching diode uses a planar epitaxial silicon structure optimized for high-speed turn-off and low stored charge. Its 4 ns reverse recovery time is measured under standardized conditions (IF = IR = 30 mA, RL = 100 Ω, Irr = 3 mA), and junction capacitance is specified at 4 pF (VR = 0, f = 1 MHz).
The SOD-123F package features flat leads with matte tin (Sn) plating over nickel (Ni) underplate, supports lead-free reflow up to 260 °C/10 s, and maintains polarity via cathode band marking. Operating junction temperature spans −65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse voltage before breakdown; defines safe blocking capability in flyback and clamp circuits |
| trr | 4 ns - measured reverse recovery time under IF/IR = 30 mA, critical for minimizing switching losses above 1 MHz |
| VF @ 100 mA | 1.50–1.70 V - forward voltage drop range affecting conduction loss and thermal rise in continuous duty |
| PD | 410 mW - max steady-state power dissipation at TA = 25 °C; derates linearly above 25 °C per Fig. 1 curve |
| CJ | 4 pF @ VR = 0 V, 1 MHz - junction capacitance limiting high-frequency impedance and RF coupling in signal paths |
| RθJA | 375 °C/W - thermal resistance from junction to ambient; determines temperature rise under given power load on standard PCB pad |
| TJ, TSTG | −65 to +150 °C - operational and storage temperature limits; supports industrial and automotive under-hood environments |
Pinout & Package
Package: SOD-123F - flat-lead, surface-mount plastic package with cathode band polarity indicator; dimensions: 2.86 × 1.52 × 1.15 mm (L × W × H); weight 4.85 ± 0.5 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node in rectifier/clamp; requires adequate copper pour for thermal relief |
| Cathode | Forward current exit / reverse voltage blocking terminal | Marked by band; ties to higher-potential rail or switch node; critical for correct orientation in layout |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free green compound | Meets IEC 61249-2-21; eliminates brominated flame retardants without compromising mechanical robustness |
| Moisture Sensitivity Level 1 | No dry-pack or baking required prior to reflow; simplifies SMT line handling and reduces process risk |
| Lead-free & RoHS compliant | Matte Sn/Ni finish meets JEDEC J-STD-020 and EU RoHS Directive 2011/65/EU |
| High-temp soldering guarantee | Rated for 260 °C/10 s reflow profile; compatible with standard Pb-free SAC305 thermal cycles |
Applications
| Switch-Mode Power Supply Snubber | High-Speed Signal Clamping |
|---|---|
Use Scenario: Placed across MOSFET drain-source in flyback converters to suppress voltage spikes during turn-off. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive energy and limiting dv/dt stress on primary switch. Use Value: 4 ns trr and 100 V VRRM enable reliable suppression of >100 kHz switching transients without oscillation or secondary breakdown. | Use Scenario: Connected between data line and VCC/GND to limit signal excursions beyond supply rails in digital interfaces. IC Role / Device Role / Timing Role: Low-capacitance (4 pF) voltage limiter protecting downstream CMOS inputs from ESD or overshoot. Use Value: Sub-2 V forward threshold and minimal CJ preserve signal edge integrity up to 100 Mbps without loading or distortion. |
| Automotive Sensor Signal Conditioning | Industrial PLC Input Protection |
Use Scenario: Used in front-end protection networks for crankshaft/camshaft position sensors exposed to load-dump transients. IC Role / Device Role / Timing Role: High-reliability transient clamp operating continuously at −40 °C to +125 °C ambient. Use Value: −65 °C to +150 °C TJ rating and MSL-1 handling ensure long-term stability in engine bay environments. | Use Scenario: Integrated into 24 V DC input modules to shunt surge currents from field wiring induced by inductive switching. IC Role / Device Role / Timing Role: Repetitive surge protector with 200 mA IO and 250 A non-repetitive IFSM (1 µs pulse). Use Value: 410 mW PD and 375 °C/W RθJA allow sustained operation under 24 V/10 mA bias with minimal heatsinking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV20W RHG | VRRM = 150 V, trr = 4 ns, VF = 1.5–1.7 V @ 100 mA - identical speed but higher blocking voltage | Suitable where system transients exceed 100 V; requires verification of layout clearance for 150 V standoff | Select when design margin demands >100 V reverse hold without changing footprint or thermal design |
| 1N4148W | VRRM = 100 V, trr = 4 ns, but PD = 500 mW and RθJA = 300 °C/W - higher power rating, better thermal performance | Better suited for higher-duty-cycle clamping; not halogen-free or MSL-1 rated | Choose when thermal headroom is constrained and RoHS/halogen compliance is secondary to power handling |
Compared with BAV20W RHG, the BAV19W RHG offers tighter voltage margin at lower cost; versus 1N4148W, it provides guaranteed MSL-1 handling and green compound but trades 90 mW PD for environmental compliance in space-constrained designs.
Availability
BAV19W RHG is available at Aetrix Electronics and suitable for switch-mode power supplies, high-speed interface protection, and automotive sensor conditioning requiring stable component supply, consistent halogen-free material content, and MSL-1 handling.
Supply support for BAV19W 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 Company (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global industrial and automotive markets since 1979.
The BAV19W RHG belongs to TSC's Small Signal Product family, engineered specifically for high-reliability, high-speed switching in compact SMD power and signal conditioning applications where thermal robustness and environmental compliance are mandatory.
FAQ
What is the maximum repetitive peak reverse voltage for BAV19W RHG?
The BAV19W RHG has a maximum repetitive peak reverse voltage (VRRM) of 100 V, as specified in DS_S1501003 E15. This rating ensures reliable blocking behavior in DC-DC snubber circuits and clamp networks where transient voltages remain below this threshold. Exceeding 100 V may cause irreversible avalanche breakdown. The BAV19W RHG must be applied within this absolute maximum rating for long-term reliability.
Is BAV19W RHG compatible with lead-free reflow soldering processes?
Yes, the BAV19W RHG is qualified for lead-free reflow soldering at 260 °C for 10 seconds, per MIL-STD-202 Method 208. Its matte tin (Sn) finish over nickel (Ni) underplate ensures solderability and intermetallic formation control. The BAV19W RHG also carries Moisture Sensitivity Level 1 certification, eliminating pre-bake requirements and supporting direct placement into standard SAC305 thermal profiles.
What does the 'RHG' suffix indicate in BAV19W RHG?
The 'RHG' suffix in BAV19W RHG denotes three attributes: 'R' indicates tape-and-reel packaging, 'H' specifies the SOD-123F package variant, and 'G' certifies halogen-free green compound per IEC 61249-2-21. This full suffix confirms the BAV19W RHG meets RoHS, is MSL-1 rated, and uses environmentally compliant molding material-critical for automotive and industrial end-equipment certifications.
How does the reverse recovery time of BAV19W RHG impact high-frequency circuit performance?
The BAV19W RHG exhibits a reverse recovery time (trr) of 4 ns under defined test conditions (IF = IR = 30 mA, RL = 100 Ω). This enables clean turn-off in switching frequencies up to ~50 MHz, minimizing commutation losses and ringing in snubber and clamp circuits. In practice, the BAV19W RHG's 4 ns trr directly reduces EMI generation and improves efficiency compared to slower diodes like 1N4007 in high-speed applications.
Can BAV19W RHG replace BAV20W RHG in an existing design?
BAV19W RHG is not a direct replacement for BAV20W RHG due to its lower 100 V VRRM versus BAV20W RHG's 150 V rating. If the circuit operates with reverse stresses consistently below 100 V and thermal margins accommodate the identical 410 mW PD, the BAV19W RHG may be substituted-but only after verifying transient voltage peaks and layout creepage. The BAV19W RHG shares the same SOD-123F footprint and pinout, but voltage derating is mandatory.
BAV19W RHG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123F
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 250 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 @ 250 V
- Capacitance @ Vr, F:
- 5pF @ 0V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123F
- Operating Temperature - Junction:
- -65°C ~ 150°C
BAV19W RHG FAQ
1.How can I place an order for BAV19W RHG through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV19W 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 RHG reliable?
The price and inventory of BAV19W 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 RHG is usually 5 days.
3.What payment methods are accepted for BAV19W RHG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV19W RHG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV19W RHG?
BAV19W RHG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV19W 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 RHG?
For technical support, including BAV19W RHG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV19W RHG requirements.
6.How does Aetrix verify that BAV19W RHG is sourced from the original manufacturer or authorized distributors?
All BAV19W 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 RHG meets industry standards.
7.What is the process for return or replacement of BAV19W RHG?
All BAV19W RHG units undergo pre-shipment inspection (PSI). If there is an issue with BAV19W 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 RHG part is unused and in its original packaging.
Return procedure for BAV19W RHG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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