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Semtech Corporation SRV08-4.TCT
- Part No.:
- SRV08-4.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
SRV08-4.TCT.pdf
- Description:
- TVS DIODE 5VWM 17.5VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,004
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Product details
Overview
SRV08-4.TCT from Semtech is a low-capacitance TVS diode array in SOT-23-6L package, designed to protect four high-speed data lines (e.g., USB, DVI, video I/O) against ESD (IEC 61000-4-2 Level 4), EFT, and lightning surges. It integrates eight surge-rated steering diodes with an internal TVS diode, features 5.0 V operating voltage, <5 pF junction capacitance per I/O line, and clamps transients to ≤12.5 V at 1 A.
For engineers reviewing the SRV08-4.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include rail-to-rail clamping topology, low-inductance SOT-23-6L layout compatibility, I/O-to-GND capacitance stability up to 1 MHz, and compliance with 8 kV contact / 15 kV air ESD immunity requirements.
Technical Context
The SRV08-4.TCT implements a rail-to-rail transient protection architecture using integrated steering diodes referenced to VCC (pin 2) and GND (pin 5). During positive transients, current steers to VCC; during negative transients, it steers to GND - both paths leveraging low-VF avalanche silicon diodes.
Its internal TVS diode limits VCC overvoltage, preventing downstream supply-line damage. The monolithic SOT-23-6L construction minimizes parasitic inductance (<1 nH typical trace path), reducing voltage overshoot during fast-rising ESD events (di/dt up to 30 A/ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Voltage | 5.0 V - matches standard USB/PCIe/DVI logic supply rails without level-shifting circuitry |
| Reverse Standoff Voltage | 5.0 V min - ensures no conduction during normal signal swing (0–5 V) |
| Clamping Voltage @ 1 A | 12.5 V max - protects CMOS inputs rated ≤13.2 V absolute maximum |
| Junction Capacitance | 3.5 pF max @ 0 V, 1 MHz - preserves signal integrity on >480 Mbps USB 2.0 or DVI links |
| ESD Rating | ±15 kV air, ±8 kV contact (IEC 61000-4-2 Level 4) - meets industrial and consumer end-equipment certification |
| Peak Pulse Power | 150 W @ 8/20 µs - sustains multiple lightning-induced surges without degradation |
| Package | SOT-23-6L - 2.9 mm × 1.6 mm footprint enables dense routing near connectors |
Pinout & Package
SOT-23-6L package (JEDEC MS-012AC), top-view marking "V08", UL 94V-0 molding compound, tape-and-reel packaging per EIA-481.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O Line 1 | Protected high-speed data line (e.g., USB D+, DVI TMDS+) |
| 2 | VCC Reference | Positive rail connection for clamping positive transients; must tie directly to clean 5 V plane |
| 3 | I/O Line 2 | Protected high-speed data line (e.g., USB D−, DVI TMDS−) |
| 4 | I/O Line 3 | Protected high-speed data line (e.g., DVI H-Sync, R/G/B) |
| 5 | GND Reference | Negative rail connection for clamping negative transients; requires shortest possible trace to ground plane |
| 6 | I/O Line 4 | Protected high-speed data line (e.g., DVI V-Sync, ID) |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail clamping topology | Enables bidirectional transient suppression without external bias components or pull-up resistors |
| Integrated TVS on VCC line | Prevents supply rail overvoltage during surge events, eliminating need for separate VCC TVS |
| Low 3.5 pF I/O-to-GND capacitance | Minimizes insertion loss and signal distortion on 480 Mbps USB 2.0 or 1.65 Gbps DVI channels |
| SOT-23-6L footprint | Reduces PCB area by >60% vs. discrete dual-diode + TVS solutions while maintaining thermal performance |
| Monolithic silicon-avalanche construction | Ensures consistent clamping behavior across temperature (−55°C to +125°C junction) |
Applications
| USB 2.0 Port Protection | DVI Interface Protection |
|---|---|
Use Scenario: Protecting upstream/downstream USB 2.0 ports on notebook motherboards and docking stations from hot-plug transients and ESD. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between connector and USB PHY IC, clamping D+/D− lines to VCC/GND. Use Value: Maintains <0.5 dB insertion loss at 240 MHz while surviving ≥1000 contact ESD strikes at 8 kV without parameter shift. | Use Scenario: Shielding DVI-D transmitter outputs (R/G/B/H-Sync/V-Sync) on graphics cards and flat-panel controllers. IC Role / Device Role / Timing Role: Four-channel TVS array connected inline with each TMDS differential pair and sync lines. Use Value: Limits capacitance to 3.5 pF per line, preserving eye diagram opening and meeting DVI 1.0 jitter specs (<0.3 UI). |
| Notebook Video I/O Protection | Microcontroller GPIO Protection |
Use Scenario: Safeguarding LVDS or TTL video output pins on portable electronics where board space and EMI are critical constraints. IC Role / Device Role / Timing Role: Single-device solution protecting four parallel video data lines (e.g., RGB666) routed to display connector. Use Value: Achieves 12.5 V clamping at 1 A with <1 ns response time, preventing latch-up in 3.3 V or 5 V display driver ICs. | Use Scenario: Hardening exposed microcontroller I/O pins (e.g., UART, SPI, button inputs) in industrial control panels against field ESD. IC Role / Device Role / Timing Role: Low-leakage (<5 µA) TVS array placed at MCU pin entry points before series current-limiting resistors. Use Value: Delivers 15 kV air-gap ESD immunity without affecting MCU input threshold voltage or adding measurable RC delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4201MR6T1G | 4-channel, SOT-23-6, 5.0 V VWM, 14.5 V VC @ 1 A, 5.5 pF capacitance | Higher clamping voltage and capacitance reduce margin for 480 Mbps USB 2.0 eye compliance | Preferred where cost sensitivity outweighs strict high-speed signal integrity requirements |
| Vishay SMA6J5.0A | Single-channel, DO-214AC, 5.0 V VWM, 9.2 V VC @ 1 A, but requires 4 discrete devices + external VCC TVS | Increases PCB area >4× and introduces layout-dependent inductance mismatch between channels | Only suitable when monolithic integration is not required and board space is unconstrained |
Compared with NUP4201MR6T1G and SMA6J5.0A, the SRV08-4.TCT delivers lower clamping voltage (12.5 V vs. 14.5 V/9.2 V), lower per-line capacitance (3.5 pF vs. 5.5 pF), and integrated rail-to-rail topology - enabling single-device protection of four matched high-speed lines with minimal layout overhead.
Availability
SRV08-4.TCT is available at Aetrix Electronics and suitable for USB 2.0 port protection, DVI interface hardening, and notebook video I/O requiring stable component supply across long-lifecycle industrial and consumer programs.
Supply support for SRV08-4.TCT 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in analog and mixed-signal ICs for power management, protection, and signal integrity.
The SRV08-4.TCT belongs to Semtech's RailClamp® family - engineered specifically for high-speed data line protection where low capacitance, rail-to-rail clamping, and ESD robustness are mandatory design requirements.
FAQ
What is the maximum clamping voltage of the SRV08-4.TCT under ESD stress?
The SRV08-4.TCT clamps to ≤12.5 V at 1 A peak pulse current (8/20 µs waveform), and ≤21.5 V at its rated 30 A peak pulse current. This clamping performance is validated per IEC 61000-4-2 test conditions and ensures safe operation for 5 V CMOS interfaces. The SRV08-4.TCT achieves this via low-VF steering diodes and optimized monolithic layout.
Can the SRV08-4.TCT protect both USB D+ and D− lines simultaneously?
Yes - the SRV08-4.TCT protects four independent I/O lines (pins 1, 3, 4, 6), making it ideal for full-duplex USB 2.0 differential pairs. Each line is clamped independently to VCC (pin 2) and GND (pin 5), preserving signal symmetry and minimizing common-mode noise injection. The SRV08-4.TCT's matched channel characteristics ensure balanced transient response across D+ and D−.
Is the SRV08-4.TCT compatible with 3.3 V systems?
No - the SRV08-4.TCT has a 5.0 V operating voltage and 5.0 V reverse standoff voltage, making it unsuitable for direct use on 3.3 V rails without level-shifting or additional biasing. For 3.3 V applications, Semtech offers the SRV05-4 variant. The SRV08-4.TCT must be used only where VCC = 5.0 V nominal, as specified in its absolute maximum ratings.
How does the SRV08-4.TCT differ from discrete TVS + diode solutions?
The SRV08-4.TCT integrates eight steering diodes and one VCC TVS into a single SOT-23-6L die, eliminating inter-device timing skew, parasitic inductance mismatches, and PCB routing complexity. Discrete solutions require ≥5 components per channel and suffer from >2× higher effective clamping voltage due to trace inductance. The SRV08-4.TCT reduces bill-of-materials count and improves reliability over discrete alternatives.
What is the thermal limit for continuous operation of the SRV08-4.TCT?
The SRV08-4.TCT supports continuous operation from −55°C to +125°C junction temperature, with derating beginning above +70°C ambient. Its power dissipation capability is limited by package thermal resistance (θJA ≈ 200°C/W); sustained DC leakage above 5 µA at 5 V indicates potential degradation. The SRV08-4.TCT maintains specification compliance across this full range when mounted per JEDEC SOT-23-6L land pattern guidelines.
SRV08-4.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- SOT-23-6
- Series:
- RailClamp®, SR
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 17.5V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 150W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
SRV08-4.TCT FAQ
1.How can I place an order for SRV08-4.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for SRV08-4.TCT 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 SRV08-4.TCT reliable?
The price and inventory of SRV08-4.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SRV08-4.TCT is usually 5 days.
3.What payment methods are accepted for SRV08-4.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SRV08-4.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SRV08-4.TCT?
SRV08-4.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SRV08-4.TCT 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 SRV08-4.TCT?
For technical support, including SRV08-4.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SRV08-4.TCT requirements.
6.How does Aetrix verify that SRV08-4.TCT is sourced from the original manufacturer or authorized distributors?
All SRV08-4.TCT 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 SRV08-4.TCT meets industry standards.
7.What is the process for return or replacement of SRV08-4.TCT?
All SRV08-4.TCT units undergo pre-shipment inspection (PSI). If there is an issue with SRV08-4.TCT, 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 SRV08-4.TCT part is unused and in its original packaging.
Return procedure for SRV08-4.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SRV08-4.TCT Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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