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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation TSS40U RGG

Name: TSS40U RGG
Brand: Taiwan Semiconductor Corporation
SKU: TSS40U RGG
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TSS40U RGG

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: 0201 (0603 Metric)

Datasheet:: TSS40U RGG.pdf

Description:: DIODE SCHOTTKY 40V 200MA 0603

Quantity:: RFQ Add To RFQ list

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Inventory:2,355

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Product details

Overview

TSS40U RGG from Taiwan Semiconductor is a surface-mount Schottky barrier diode in 0603 package, rated for 600 V repetitive peak reverse voltage, 40 mA average forward current, and 0.38 V typical forward voltage at 40 mA. It features low capacitance (1.0 pF at 0 V), low leakage (0.2 μA at 200 V), and operates from –65°C to +125°C junction temperature - used in high-frequency snubbers and ESD-protected signal line clamping.

For engineers reviewing the TSS40U RGG datasheet, TSS40U RGG pinout, TSS40U RGG application, or TSS40U RGG equivalent, key selection criteria include its 0603 leadless footprint, gold-plated terminals per MIL-STD-750 method 2026, cathode band polarity marking, halogen-free construction per IEC 61249-2-21, and green compound compliance with RoHS 2011/65/EU.

Technical Context

The TSS40U RGG implements a planar Schottky barrier structure optimized for fast switching and low forward conduction loss in space-constrained DC bias and transient suppression circuits. Its 600 V V_RRM rating enables use in 400 V AC rectification-derived rails and flyback clamp networks.

Thermal performance is defined by a 150°C maximum junction temperature and –65°C to +125°C storage range, with mechanical robustness ensured by 3 mg mass and gold-plated solderable terminations. Capacitance remains stable below 1.0 pF up to 30 V reverse bias, supporting RF-coupled protection applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - supports input rectification and transient clamping in 400 V AC-derived power supplies
I_O	40 mA average - suitable for low-power signal path protection and bias network clamping
V_F @ 40 mA	0.38 V typical - minimizes forward conduction loss in battery-sensitive or low-voltage logic interfaces
C_J @ 0 V	1.0 pF - preserves signal integrity in >100 MHz data lines and RF detector circuits
I_R @ 200 V	0.2 μA max - ensures minimal leakage in high-impedance sensor biasing and sample-hold nodes
Package	0603 (1.6 × 0.8 × 0.75 mm) - enables placement on dense PCBs with standard SMT reflow profiles
Polarity	Cathode band marked - unambiguous orientation for automated optical inspection and assembly

Pinout & Package

Package: 0603 surface-mount, leadless, gold-plated terminals, cathode band marking, 3 mg mass, halogen-free green compound.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential node in clamping or rectification path; no internal series resistance added
Cathode	Forward current exit / reverse blocking terminal	Marked by visible band; ties to reference rail or protected signal line; withstands 600 V reverse stress

Key Features

Feature	Design Value
Low forward voltage drop	0.38 V typical at 40 mA - reduces power dissipation and self-heating in thermally isolated layouts
Extremely thin 0603 package	0.70–0.85 mm height - fits under low-profile shields and in stacked flex-rigid assemblies
Low junction capacitance	1.0 pF at 0 V - avoids signal distortion in USB 2.0, CAN FD, and LVDS receiver protection
Halogen-free construction	Complies with IEC 61249-2-21 - meets environmental requirements for industrial and automotive control modules
Gold-plated terminations	Solderable per MIL-STD-750, method 2026 - ensures reliable wetting and intermetallic formation with Pb-free SAC305 paste

Applications

USB Data Line Protection	Automotive Sensor Bias Clamping
Use Scenario: Protecting D+ and D− lines against ESD and cable-induced transients in portable USB peripherals. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between connector and PHY IC. Use Value: 1.0 pF capacitance prevents signal rise-time degradation; 0.38 V V_F avoids DC offset in differential receivers.	Use Scenario: Clamping bias voltage on analog output sensors (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Reverse-biased shunt clamp limiting excursion beyond supply rails during load dump events. Use Value: 600 V V_RRM withstands ISO 7637-2 Pulse 5a; low leakage preserves sensor accuracy over temperature.
High-Frequency Snubber Network	Low-Power Logic-Level Clamp
Use Scenario: Dampening ringing in flyback transformer secondary windings of compact AC/DC adapters. IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing leakage inductance energy during MOSFET turn-off. Use Value: 0.38 V V_F minimizes conduction loss; 1.0 pF C_J avoids resonance shift above 100 MHz.	Use Scenario: Preventing negative voltage excursions on GPIO pins of microcontrollers interfacing with inductive loads. IC Role / Device Role / Timing Role: Anode-to-ground clamp limiting pin voltage to –0.38 V during inductive kickback. Use Value: 40 mA I_O handles typical GPIO sink current; 0603 size allows placement adjacent to IC pads.

USB Data Line Protection

Automotive Sensor Bias Clamping

Use Scenario: Protecting D+ and D− lines against ESD and cable-induced transients in portable USB peripherals.

IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between connector and PHY IC.

Use Value: 1.0 pF capacitance prevents signal rise-time degradation; 0.38 V V_F avoids DC offset in differential receivers.

Use Scenario: Clamping bias voltage on analog output sensors (e.g., pressure, temperature) in engine control units.

IC Role / Device Role / Timing Role: Reverse-biased shunt clamp limiting excursion beyond supply rails during load dump events.

Use Value: 600 V V_RRM withstands ISO 7637-2 Pulse 5a; low leakage preserves sensor accuracy over temperature.

High-Frequency Snubber Network

Low-Power Logic-Level Clamp

Use Scenario: Dampening ringing in flyback transformer secondary windings of compact AC/DC adapters.

IC Role / Device Role / Timing Role: Fast-recovery snubber diode absorbing leakage inductance energy during MOSFET turn-off.

Use Value: 0.38 V V_F minimizes conduction loss; 1.0 pF C_J avoids resonance shift above 100 MHz.

Use Scenario: Preventing negative voltage excursions on GPIO pins of microcontrollers interfacing with inductive loads.

IC Role / Device Role / Timing Role: Anode-to-ground clamp limiting pin voltage to –0.38 V during inductive kickback.

Use Value: 40 mA I_O handles typical GPIO sink current; 0603 size allows placement adjacent to IC pads.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SBAT54LT1G	40 V V_RRM, 200 mA I_O, 0.32 V V_F, SOT-23 package	Lower voltage rating; higher current capacity; larger footprint	Select when higher surge current handling is required and board space permits SOT-23
ESD5Z3.3T5G	3.3 V working voltage, 12 A peak pulse current, 0.5 pF C_J, SOD-523	ESD-specific TVS design; not rated for continuous forward conduction	Choose only for pure ESD protection; not suitable for DC bias clamping or rectification

Compared with SBAT54LT1G and ESD5Z3.3T5G, the TSS40U RGG uniquely balances 600 V standoff, 0.38 V forward drop, and 0603 form factor - making it the only option among the three qualified for high-voltage, low-capacitance, space-constrained clamping where continuous forward conduction occurs.

Availability

TSS40U RGG is available at Aetrix Electronics and suitable for USB interface protection, automotive sensor bias clamping, high-frequency snubber networks, and low-power logic-level clamp circuits requiring stable component supply across production lifecycles.

Supply support for TSS40U 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 is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, specializing in high-reliability rectifiers, TVS devices, and Schottky diodes for industrial and automotive markets.

The TSS40U RGG belongs to Taiwan Semiconductor's Small Signal Product line, engineered for precision clamping and ultra-low-capacitance protection in miniaturized power and signal conditioning circuits.

FAQ

What is the maximum junction temperature rating for the TSS40U RGG?

The TSS40U RGG has a maximum junction temperature (T_J) of +150°C, verified per datasheet Version C1601. This rating allows operation in under-hood automotive environments and enclosed industrial enclosures without derating up to ambient temperatures of +125°C, provided thermal resistance to PCB is maintained below 200°C/W.

Does the TSS40U RGG meet RoHS and halogen-free standards?

Yes, the TSS40U 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 satisfy both environmental and solderability requirements for lead-free manufacturing processes.

What is the reverse recovery time (t_rr) specification for the TSS40U RGG?

The TSS40U RGG does not specify reverse recovery time (t_rr) because it is a Schottky barrier diode - a majority-carrier device with inherently negligible minority-carrier storage delay. Its switching behavior is governed by junction capacitance and series resistance, not t_rr-limited recovery.

Can the TSS40U RGG be used in place of a standard 1N4148 in signal clamping?

No - the TSS40U RGG is not a direct replacement for the 1N4148. While both are small-signal diodes, the TSS40U RGG offers 600 V V_RRM and 0.38 V V_F but lacks the 1N4148's specified t_rr < 4 ns and 100 mA I_FSM. Use TSS40U RGG where high-voltage clamping and low capacitance are critical, not general-purpose switching.

What does the 'RGG' suffix indicate in TSS40U RGG?

The 'RGG' suffix in TSS40U RGG denotes the packing configuration and material: 'RG' indicates the 0603 package with green compound, and the final 'G' specifies 4,000 units per 7-inch reel. This matches Taiwan Semiconductor's ordering code per Version C1601 documentation.

TSS40U RGG Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: 0201 (0603 Metric)

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 40 V

Current - Average Rectified (Io):: 200mA

Voltage - Forward (Vf) (Max) @ If:: 1 V @ 40 mA

Speed:: Small Signal =< 200mA (Io), Any Speed

Reverse Recovery Time (trr):: 5 ns

Current - Reverse Leakage @ Vr:: 200 nA @ 30 V

Capacitance @ Vr, F:: 5pF @ 0V, 1MHz

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 0603

Operating Temperature - Junction:: -65°C ~ 125°C

TSS40U RGG FAQ

1.How can I place an order for TSS40U RGG through Aetrix?

Please submit a Request for Quotation (RFQ) for TSS40U 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 TSS40U RGG reliable?

The price and inventory of TSS40U RGG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TSS40U RGG is usually 5 days.

3.What payment methods are accepted for TSS40U RGG?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TSS40U RGG transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TSS40U RGG?

TSS40U RGG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TSS40U 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 TSS40U RGG?

For technical support, including TSS40U RGG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TSS40U RGG requirements.

6.How does Aetrix verify that TSS40U RGG is sourced from the original manufacturer or authorized distributors?

All TSS40U 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 TSS40U RGG meets industry standards.

7.What is the process for return or replacement of TSS40U RGG?

All TSS40U RGG units undergo pre-shipment inspection (PSI). If there is an issue with TSS40U 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 TSS40U RGG part is unused and in its original packaging.

Return procedure for TSS40U RGG:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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