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Taiwan Semiconductor Corporation BAV99W RFG
- Part No.:
- BAV99W RFG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Diode Arrays
- Package:
- SC-70, SOT-323
- Datasheet:
-
BAV99W RFG.pdf
- Description:
- DIODE ARRAY GP 75V 150MA SOT-323
- Quantity:
- Payment:
- Shipping:
Inventory:549
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Product details
Overview
BAV99W RFG from Taiwan Semiconductor is a dual high-speed switching diode in SOT-323 package, rated for 150 mA forward current and 85 V repetitive peak reverse voltage, with reverse recovery time < 4 ns. It serves as a compact, low-capacitance (1.5 pF) signal-level switching element in DC-DC converter feedback paths and synchronous rectifier snubbing circuits.
For engineers reviewing the BAV99W RFG datasheet, BAV99W RFG pinout, BAV99W RFG application, or BAV99W RFG equivalent, key selection criteria include trr < 4 ns, VF ≤ 1.25 V at 150 mA, IR ≤ 1 µA at 75 V/25°C, TJ max = 150°C, and SOT-323 mechanical compatibility with space-constrained PCB layouts.
Technical Context
The BAV99W RFG integrates two independent epitaxial planar silicon switching diodes in a single SOT-323 package, sharing no internal connection-pin configuration is anode-cathode-anode-cathode across four terminals. Its fast recovery is achieved via optimized carrier lifetime control, enabling operation up to ~100 MHz in small-signal switching applications.
Thermal resistance RθJA is 625°C/W, limiting continuous power dissipation to 200 mW at TA = 25°C. The device meets JESD201 Class 1A whisker resistance and J-STD-020 Moisture Sensitivity Level 1, supporting lead-free reflow without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 85 V - supports input-side clamping in 48 V nominal DC-DC converters |
| IF | 150 mA per diode - sufficient for gate-drive bootstrap and auxiliary bias supply rectification |
| trr | < 4 ns - enables clean edge transitions in >20 MHz PWM control loops |
| CJ | 1.5 pF at 0 V - minimizes capacitive loading on high-impedance timing or sensing nodes |
| IR | ≤ 1 µA at 75 V/25°C - ensures low leakage in precision voltage reference divider networks |
| TJ max | +150°C - allows operation in sealed industrial enclosures without active cooling |
| PD | 200 mW - defines maximum steady-state dissipation before thermal derating begins |
Pinout & Package
Package: SOT-323 - surface-mount plastic package with three leads (two anodes, one shared cathode terminal), 1.3 mm × 2.1 mm footprint, 0.95 mm height, matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Diode 1 | Input node for first switching path; connects to switch-node side of flyback snubber |
| 2 | Cathode of Diode 1 / Anode of Diode 2 | Common terminal - used for bidirectional clamp or dual-path routing |
| 3 | Cathode of Diode 2 | Output node for second switching path; ties to feedback divider ground reference |
Key Features
| Feature | Design Value |
|---|---|
| Fast switching (trr < 4 ns) | Reduces switching loss and EMI generation in high-frequency SMPS designs |
| Low junction capacitance (1.5 pF) | Maintains signal integrity in RF detector and high-speed logic interface circuits |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow, reducing manufacturing cycle time |
| Halogen-free (IEC 61249-2-21) | Complies with EU RoHS and IPC-1752A environmental reporting requirements |
| J-STD-002 solderable leads | Ensures reliable wetting during both SnPb and lead-free reflow profiles |
Applications
| Switch-Mode Power Supply Clamp | USB Port ESD Protection |
|---|---|
Use Scenario: Clamping voltage spikes across MOSFET drain-source during turn-off in 5–24 V buck converters. IC Role / Device Role / Timing Role: Dual-diode transient voltage suppressor placed between switch node and output rail. Use Value: Limits overshoot to ≤85 V while adding <1.5 pF parasitic capacitance to critical switching node. | Use Scenario: Protecting USB 2.0 D+ and D− lines from ±8 kV contact ESD per IEC 61000-4-2. IC Role / Device Role / Timing Role: Low-capacitance steering diode array shunting transients to VBUS and GND rails. Use Value: Maintains signal rise/fall times <1 ns due to 1.5 pF junction capacitance and sub-4 ns recovery. |
| High-Speed Logic Level Shifting | Photodiode Bias Network |
Use Scenario: Bidirectional level translation between 3.3 V microcontroller GPIO and 5 V peripheral bus. IC Role / Device Role / Timing Role: Passive clamping diode pair limiting voltage excursion beyond rail limits. Use Value: Enables glitch-free communication up to 48 MHz with <4 ns propagation delay asymmetry. | Use Scenario: Providing reverse-biased bias voltage to silicon photodiodes in optical smoke detectors. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA @ 75 V) blocking diode isolating bias rail from amplifier input. Use Value: Prevents dark-current drift by suppressing thermally induced leakage above 75 V reverse bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-speed switching diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BAV99LT1G | Same VRRM/IF/trr, but SOT-23 package (larger footprint, higher RθJA = 400°C/W) | Less suitable for ultra-dense layouts; requires larger pad area and thermal relief | Select when board assembly uses legacy SOT-23 tooling and thermal margin >100°C/W is available |
| MMBD7000LT1G | Higher VRRM = 100 V, trr = 4 ns typ, but IF = 200 mA - higher forward drop (VF = 1.25 V @ 150 mA) | Better for 48 V telecom systems; slightly increased conduction loss in low-voltage rails | Prefer where reverse voltage margin >15 V is required and layout allows same SOT-323 footprint |
Compared with BAV99W RFG, BAV99LT1G trades miniaturization for easier handling and lower thermal resistance, while MMBD7000LT1G extends reverse voltage rating at the cost of marginally higher VF - both require verification of pinout alignment and thermal performance in final layout.
Availability
BAV99W RFG is available at Aetrix Electronics and suitable for switching power supply clamp circuits, USB port protection networks, high-speed logic level shifting, and photodiode bias networks requiring stable component supply and halogen-free compliance.
Supply support for BAV99W RFG 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 BAV99W RFG belongs to TSC's high-speed switching diode product line, engineered for minimal trr and CJ in ultra-compact packages to support miniaturized power conversion and signal integrity-critical interfaces.
FAQ
What is the pin configuration of the BAV99W RFG?
The BAV99W RFG uses a three-terminal SOT-323 package with pin 1 = anode of diode 1, pin 2 = cathode of diode 1 and anode of diode 2 (common terminal), and pin 3 = cathode of diode 2. This configuration enables independent or shared-path switching without internal series connection. The BAV99W RFG datasheet confirms this layout in Package Outline Dimensions section.
Does the BAV99W RFG support lead-free reflow soldering?
Yes, the BAV99W RFG features matte tin-plated leads qualified to J-STD-002 for solderability and complies with J-STD-020 Moisture Sensitivity Level 1, meaning it can undergo standard lead-free reflow (peak 260°C) without baking. The BAV99W RFG packaging documentation explicitly states "no preconditioning required" for MSL-1 devices.
What is the maximum reverse voltage the BAV99W RFG can withstand continuously?
The BAV99W RFG has a repetitive peak reverse voltage (VRRM) rating of 85 V, which defines its maximum continuous reverse-bias capability under repetitive conditions. Derating is required above 25°C ambient; the BAV99W RFG forward current derating curve shows usable reverse blocking down to −55°C and up to +150°C junction temperature.
How does the BAV99W RFG compare to single-diode alternatives in switching speed?
The BAV99W RFG achieves trr < 4 ns per diode - matching or exceeding most single-die SOT-23 switching diodes like 1N4148WS (trr = 4 ns). Its dual-diode integration adds no speed penalty because each junction is independently optimized. The BAV99W RFG maintains this performance while reducing board area versus two discrete devices.
Is the BAV99W RFG suitable for photodiode bias applications?
Yes, the BAV99W RFG exhibits ≤1 µA reverse leakage at 75 V and 25°C, and ≤50 µA at 75 V and 150°C, making it suitable for reverse-biasing silicon photodiodes in smoke detectors and optical sensors. Its low 1.5 pF capacitance avoids signal distortion, and the BAV99W RFG's specified IR values align with typical photodiode dark-current requirements.
BAV99W RFG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Series Connection
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 75 V
- Current - Average Rectified (Io) (per Diode):
- 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 @ 85 V
- Operating Temperature - Junction:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
BAV99W RFG FAQ
1.How can I place an order for BAV99W RFG through Aetrix?
Please submit a Request for Quotation (RFQ) for BAV99W RFG 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 BAV99W RFG reliable?
The price and inventory of BAV99W RFG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BAV99W RFG is usually 5 days.
3.What payment methods are accepted for BAV99W RFG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BAV99W RFG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for BAV99W RFG?
BAV99W RFG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your BAV99W RFG 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 BAV99W RFG?
For technical support, including BAV99W RFG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BAV99W RFG requirements.
6.How does Aetrix verify that BAV99W RFG is sourced from the original manufacturer or authorized distributors?
All BAV99W RFG 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 BAV99W RFG meets industry standards.
7.What is the process for return or replacement of BAV99W RFG?
All BAV99W RFG units undergo pre-shipment inspection (PSI). If there is an issue with BAV99W RFG, 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 BAV99W RFG part is unused and in its original packaging.
Return procedure for BAV99W RFG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
BAV99W RFG Tags
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BAV99-7-F
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BAT54C-7-F
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BAV99,215
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BAT54S-7-F
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BAV99LT1G
onsemi
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BAT54S,215
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MMBD1503-TP
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