Taiwan Semiconductor Corporation TSS0340U RGG
- Part No.:
- TSS0340U RGG
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
TSS0340U RGG.pdf
- Description:
- DIODE SCHOTTKY 45V 30MA 0603
- Quantity:
- Payment:

- Shipping:

Inventory:3,272
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Product details
Overview
TSS0340U RGG from Taiwan Semiconductor is a surface-mount Schottky barrier diode in 0603 package, rated for 45 V repetitive peak reverse voltage, 30 mA average forward current, and 150 mW power dissipation, with low forward voltage drop (0.37 V @ 1 mA) and low junction capacitance (1.5 pF @ 1 V). It serves as ESD protection and high-speed signal clamping in space-constrained portable electronics.
For engineers reviewing the TSS0340U RGG datasheet, TSS0340U RGG pinout, TSS0340U RGG application, or TSS0340U RGG equivalent, key selection factors include its 0603 footprint compatibility, cathode-band polarity marking, gold-plated solderable terminals per MIL-STD-750 method 2026, and halogen-free construction compliant with IEC 61249-2-21.
Technical Context
The TSS0340U RGG operates as a unidirectional small-signal Schottky diode optimized for low-capacitance, high-speed switching in RF and digital I/O protection circuits. Its 1.5 pF junction capacitance at 1 V reverse bias and 0.37 V forward voltage at 1 mA support fast transient response and minimal signal distortion.
Thermal performance is defined by a -40°C to +125°C junction and storage temperature range, with derating of average forward current beginning above 25°C ambient. The device exhibits 1.0 μA reverse leakage at 40 V and withstands 500 mA non-repetitive surge current (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 45 V - Maximum repetitive reverse voltage before breakdown; sets clamping ceiling in overvoltage protection |
| IO | 30 mA - Continuous DC forward current rating; defines steady-state signal path handling capacity |
| VF @ 1 mA | 0.37 V - Low forward drop minimizes power loss and voltage offset in bias networks |
| CJ @ 1 V | 1.5 pF - Ultra-low junction capacitance preserves signal integrity up to ~1 GHz in RF paths |
| IR @ 40 V | 1.0 μA - Low leakage maintains high-impedance state during standby or off-state signaling |
| Pd | 150 mW - Power dissipation limit at 25°C; requires thermal derating above ambient 25°C |
| Package | 0603 (1.6 × 0.8 × 0.75 mm) - Enables ultra-dense PCB layouts in wearables and IoT sensors |
Pinout & Package
Package: 0603 surface-mount, leadless, gold-plated terminals; polarity indicated by cathode band; weight ≈ 3 mg; marking code "B2".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to signal source or supply rail in clamp/rectifier configuration |
| Cathode | Forward current exit / reverse-biased terminal | Marked with band; tied to reference (e.g., VCC or ground) for clamping action |
Key Features
| Feature | Design Value |
|---|---|
| Low capacitance | 1.5 pF @ 1 V enables <1 GHz signal path integrity without added filtering |
| Low forward voltage | 0.37 V @ 1 mA reduces conduction loss and improves efficiency in low-power biasing |
| Halogen-free construction | Complies with IEC 61249-2-21; supports RoHS-compliant manufacturing and end-of-life recycling |
| Gold-plated terminals | MIL-STD-750 method 2026 qualified; ensures reliable solder wetting and long-term interconnect stability |
Applications
| USB Data Line Protection | RF Front-End ESD Clamp |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines against IEC 61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Bidirectional clamping diode placed between data line and VCC/GND rails. Use Value: 1.5 pF capacitance avoids signal rise-time degradation; 0.37 V forward drop ensures fast turn-on during ESD transients. | Use Scenario: Guarding LNA input pins in sub-6 GHz cellular front-end modules from electrostatic discharge. IC Role / Device Role / Timing Role: Low-capacitance shunt element to divert ESD energy before reaching sensitive transistor gates. Use Value: Sub-2 pF capacitance prevents detuning of matching networks; 45 V VRRM accommodates bias headroom in 3.3–5 V LNAs. |
| IoT Sensor Interface Clamping | Wearable Battery Monitoring |
Use Scenario: Safeguarding analog sensor outputs (e.g., temperature, accelerometer) connected to MCU ADC inputs. IC Role / Device Role / Timing Role: Signal-line protector limiting overvoltage to within MCU absolute maximum ratings. Use Value: 30 mA IO rating handles transient surges without degradation; 0603 size fits tight spacing near MEMS die. | Use Scenario: Clamping voltage feedback nodes in lithium-ion battery fuel gauge circuits. IC Role / Device Role / Timing Role: Precision voltage limiter on resistive divider output feeding battery monitor IC. Use Value: 1.0 μA leakage at 40 V avoids measurement error in high-impedance divider networks; halogen-free material meets wearable safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semi NSR0340HT1G | Same 0603 package, 40 V VRRM, 0.45 V VF @ 1 mA, 2.0 pF CJ | Slightly higher capacitance and forward drop; lower reverse voltage rating | Acceptable where 40 V clamping ceiling and marginally higher loss are acceptable |
| Vishay VSKY0340HJ | 0603 package, 45 V VRRM, 0.35 V VF @ 1 mA, 1.2 pF CJ, AEC-Q200 qualified | Automotive-qualified variant with tighter parametric distribution and extended temperature validation | Preferred for automotive body electronics requiring AEC-Q200 compliance |
Compared with NSR0340HT1G and VSKY0340HJ, the TSS0340U RGG offers the best balance of low capacitance (1.5 pF), low forward voltage (0.37 V), and industrial-grade reliability in a cost-optimized 0603 footprint-making it ideal for consumer IoT and portable medical devices where space and signal fidelity are critical.
Availability
TSS0340U RGG is available at Aetrix Electronics and suitable for USB interface protection, RF front-end ESD clamping, and wearable sensor signal conditioning requiring stable component supply across high-mix, low-volume production runs.
Supply support for TSS0340U RGG 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 global industrial, computing, and consumer markets since 1979.
The TSS0340U RGG belongs to TSC's Small Signal Product family, engineered specifically for high-frequency, low-leakage, space-constrained protection and signal routing in portable and wireless electronics.
FAQ
What is the maximum operating temperature for the TSS0340U RGG?
The TSS0340U RGG has a specified junction temperature range of -40°C to +125°C. This allows reliable operation in thermally demanding environments such as enclosed wearable enclosures or near RF power amplifiers. Derating of forward current begins above 25°C ambient, per the Fig.1 derating curve in the official datasheet. Thermal design must ensure the TSS0340U RGG junction stays within this limit under worst-case power dissipation.
Does the TSS0340U RGG meet RoHS and halogen-free requirements?
Yes, the TSS0340U RGG complies with RoHS Directive 2011/65/EU and WEEE 2002/96/EC, and is halogen-free per IEC 61249-2-21. Its green compound packaging and gold-plated terminals support environmentally compliant manufacturing and end-of-life processing. These certifications are explicitly stated in the TSS0340U RGG product documentation and verified through TSC's material declarations.
What does the marking code 'B2' indicate on the TSS0340U RGG?
The marking code 'B2' laser-etched on the TSS0340U RGG top surface identifies the specific device variant and manufacturing lot traceability per Taiwan Semiconductor's internal coding system. It is not a functional parameter but serves as a visual identification aid for assembly verification and quality control. The cathode band remains the sole polarity indicator for circuit layout and placement.
Can the TSS0340U RGG be used in bidirectional ESD protection configurations?
No-the TSS0340U RGG is a unidirectional Schottky diode. For bidirectional ESD protection, two TSS0340U RGG devices must be used in series opposition (anode-to-anode or cathode-to-cathode), or a dedicated bidirectional TVS like the TSS0340U RGG's complementary dual-diode variants should be selected. Its single-junction structure only conducts in one direction, as confirmed by the polarity band and forward/reverse characteristic curves.
What is the typical junction capacitance of the TSS0340U RGG at 30 V reverse bias?
The typical junction capacitance of the TSS0340U RGG is 0.5 pF at 30 V reverse bias, as specified in the "Typical Capacitance Between Terminals" table. This ultra-low value-combined with its 1.5 pF at 1 V-makes the TSS0340U RGG especially effective in high-frequency signal paths where parasitic loading must be minimized, such as antenna switch control lines or high-speed serial interfaces.
TSS0340U RGG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- 0201 (0603 Metric)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 45 V
- Current - Average Rectified (Io):
- 30mA
- Voltage - Forward (Vf) (Max) @ If:
- 370 mV @ 1 mA
- Speed:
- Small Signal =< 200mA (Io), Any Speed
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 40 V
- Capacitance @ Vr, F:
- 1.5pF @ 1V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0603
- Operating Temperature - Junction:
- -40°C ~ 125°C
TSS0340U RGG FAQ
1.How can I place an order for TSS0340U RGG through Aetrix?
Please submit a Request for Quotation (RFQ) for TSS0340U RGG 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 TSS0340U RGG reliable?
The price and inventory of TSS0340U RGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSS0340U RGG is usually 5 days.
3.What payment methods are accepted for TSS0340U RGG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSS0340U RGG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TSS0340U RGG?
TSS0340U RGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TSS0340U RGG 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 TSS0340U RGG?
For technical support, including TSS0340U RGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSS0340U RGG requirements.
6.How does Aetrix verify that TSS0340U RGG is sourced from the original manufacturer or authorized distributors?
All TSS0340U RGG 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 TSS0340U RGG meets industry standards.
7.What is the process for return or replacement of TSS0340U RGG?
All TSS0340U RGG units undergo pre-shipment inspection (PSI). If there is an issue with TSS0340U RGG, 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 TSS0340U RGG part is unused and in its original packaging.
Return procedure for TSS0340U RGG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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