My Inquiry
My Account
Semtech Corporation SLVE2.8.TCT
- Part No.:
- SLVE2.8.TCT
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- TO-253-4, TO-253AA
- Datasheet:
-
SLVE2.8.TCT.pdf
- Description:
- TVS DIODE 2.8VWM 15VC SOT143-4
- Quantity:
- Payment:
- Shipping:
Inventory:5,800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SLVE2.8.TCT from Semtech is a bidirectional EPD TVS diode in SOT-143 package, designed for ESD and latch-up protection of low-voltage data lines with 2.8V working voltage, 15kV air-gap ESD immunity (IEC 61000-4-2 Level 4), 300W peak pulse power (8/20μs), and 1.4V clamping voltage at 1A. It protects bidirectional or differential interfaces such as Ethernet transceivers and laser diodes.
For engineers reviewing the SLVE2.8.TCT datasheet, pinout, applications, or equivalent options, key selection criteria include bidirectional line protection capability, low 1.4V clamping at 1A, sub-1pF junction capacitance, <1μA leakage at VRWM, and SOT-143 flow-thru layout compatibility for high-speed signal integrity.
Technical Context
The SLVE2.8.TCT uses Semtech's proprietary EPD (Electrostatic Protection Diode) process-a four-layer nppn structure enabling punch-through conduction instead of avalanche breakdown-delivering stable low-voltage operation without high leakage or capacitance penalties typical of silicon-avalanche devices.
It operates in bidirectional mode with pins 2 and 3 connected to the protected line(s), while pins 1 and 4 are grounded; this configuration supports both common-mode protection of one bidirectional line and differential-mode protection across two I/O lines, minimizing trace inductance via its flow-thru topology.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 2.8V - Ensures reliable DC blocking up to rated system voltage without leakage-induced errors. |
| Clamping Voltage (VC) | 1.4V at 1A (8/20μs) - Limits transient stress on protected ICs below logic-level thresholds. |
| Peak Pulse Power | 300W (8/20μs) - Absorbs high-energy surges per IEC 61000-4-5 (24A lightning test). |
| Junction Capacitance | 0.5pF at 0V - Preserves signal integrity on high-speed lines (e.g., USB 2.0, Gigabit Ethernet). |
| Leakage Current | <1μA at 2.8V, 25°C - Prevents DC loading and battery drain in portable instrumentation. |
| ESD Rating | ±15kV air, ±8kV contact (IEC 61000-4-2 Level 4) - Meets industrial and telecom immunity requirements. |
Pinout & Package
SOT-143 package: 4-pin surface-mount plastic case, JEDEC-compliant, UL 94V-0 flammability rating, tape-and-reel packaging (EIA-481 compliant). Dimensions per Semtech outline drawing: 2.92mm × 1.3mm × 1.0mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground | Low-inductance return path for transient current; must connect directly to ground plane. |
| Pin 2 | I/O Line (Anode/Cathode) | Connects to bidirectional data line; forms symmetrical protection path with Pin 3. |
| Pin 3 | I/O Line (Cathode/Anode) | Paired with Pin 2 for bidirectional conduction; enables differential-mode protection when used with Pin 1/4 ground. |
| Pin 4 | Ground | Second ground terminal for balanced layout; reduces loop inductance in flow-thru configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Enables single-device safeguarding of full-duplex or differential interfaces without polarity constraints. |
| EPD process technology | Delivers 2.8V standoff with <1μA leakage and 0.5pF capacitance-unachievable with standard avalanche diodes. |
| Flow-thru pinout | Minimizes PCB trace inductance between I/O pins (2–3) and ground pins (1–4), reducing voltage overshoot during ESD events. |
| IEC 61000-4-2/4-4/4-5 compliance | Validated for full-system immunity testing: ±15kV air, 40A EFT, 24A lightning surge-no external circuitry required. |
Applications
| Ethernet Transceiver Protection | Laser Diode Interface Protection |
|---|---|
Use Scenario: Protecting 10/100/1000BASE-T PHY interfaces against ESD during hot-plug or connector handling. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed inline between magnetics and PHY IC to shunt transients before reaching sensitive analog front-end. Use Value: 1.4V clamping at 1A prevents PHY latch-up and maintains signal fidelity with <0.5pF loading on MDI lines. | Use Scenario: Safeguarding laser diode drivers and monitor photodiodes in fiber-optic modules exposed to handling ESD. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on Tx/Rx bias lines to avoid modulation distortion or catastrophic failure. Use Value: Sub-1μA leakage avoids DC offset errors in precision bias networks; 2.8V VRWM matches typical LD driver supply rails. |
| High-Speed RAM Bus Protection | Portable Instrumentation I/O |
Use Scenario: Shielding DDR3/DDR4 address/control lines in servers and notebooks from board-level ESD coupling. IC Role / Device Role / Timing Role: Point-of-entry protection on parallel bus stubs, leveraging SOT-143 compact footprint for dense memory subsystem layouts. Use Value: 0.5pF capacitance prevents timing skew or signal reflection on >800MHz buses; flow-thru layout preserves impedance continuity. | Use Scenario: Securing analog sensor inputs and UART/USB lines in handheld test equipment subjected to field ESD events. IC Role / Device Role / Timing Role: Primary ESD suppression element on front-panel connectors and probe interfaces, operating at 2.8–3.3V logic domains. Use Value: 15kV air-gap rating ensures pass/fail compliance in portable device qualification; UL 94V-0 package meets safety certifications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLVG2.8.TCT | Unidirectional; 2.8V VRWM; same SOT-143 package but asymmetric IV curve (single-polarity conduction). | Only suitable for DC-biased or unidirectional signal lines (e.g., power rail clamping, RS-232 TX). | Select SLVG2.8.TCT only when protecting non-symmetrical circuits where reverse conduction is unnecessary. |
| TPD2E001DRYR | 2-channel unidirectional TVS; 5V VRWM; 0.8pF typical capacitance; 12kV ESD rating; same SOT-5X3 footprint. | Requires separate channels per line; higher clamping (~6V) and VRWM limit use in sub-3V systems. | Choose TPD2E001DRYR for multi-line protection where board space allows dual-channel layout and 5V tolerance is acceptable. |
Compared with SLVG2.8.TCT and TPD2E001DRYR, the SLVE2.8.TCT uniquely supports true bidirectional protection at 2.8V with lowest clamping (1.4V) and capacitance (0.5pF), making it optimal for differential, low-voltage, high-speed interfaces where symmetry and minimal loading are critical.
Availability
SLVE2.8.TCT is available at Aetrix Electronics and suitable for Ethernet transceivers, laser diode interfaces, high-speed RAM buses, and portable instrumentation requiring stable component supply and long-term production continuity.
Supply support for SLVE2.8.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 semiconductor company specializing in high-performance analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
The SLV series-including SLVE2.8.TCT-is part of Semtech's EPD TVS product line, engineered specifically for robust, low-voltage ESD and latch-up protection in high-speed digital and optical communication systems.
FAQ
What is the primary protection function of the SLVE2.8.TCT?
The SLVE2.8.TCT is a bidirectional transient voltage suppressor designed to protect low-voltage CMOS circuits from electrostatic discharge (ESD), cable discharge events (CDE), and induced surges. Its core function is to clamp transient voltages to 1.4V at 1A while maintaining 2.8V working voltage-ensuring safe operation without interfering with normal signal levels. The SLVE2.8.TCT achieves this using Semtech's EPD process, not conventional avalanche breakdown.
How does the SLVE2.8.TCT differ from the SLVG2.8.TCT?
The SLVE2.8.TCT is bidirectional and protects AC-coupled or differential lines (e.g., Ethernet pairs), whereas the SLVG2.8.TCT is unidirectional and intended for DC-biased lines like power rails or RS-232 outputs. Both share the same SOT-143 package and 2.8V VRWM, but their IV curves differ fundamentally: SLVE2.8.TCT conducts symmetrically in both directions above punch-through voltage, while SLVG2.8.TCT conducts only in reverse bias. This makes SLVE2.8.TCT the correct choice for bidirectional signal paths.
Can the SLVE2.8.TCT be used for differential mode protection?
Yes-the SLVE2.8.TCT supports differential mode protection by connecting pins 1 and 4 to separate I/O lines (e.g., D+ and D−), while pins 2 and 3 remain grounded. This configuration leverages its bidirectional symmetry to clamp cross-line transients without affecting common-mode signaling. The datasheet explicitly confirms this use case, and the flow-thru pinout minimizes imbalance. SLVE2.8.TCT is validated for such applications in USB 2.0 and LVDS interfaces.
What is the maximum allowable ambient temperature for continuous operation of the SLVE2.8.TCT?
The SLVE2.8.TCT has an operating junction temperature range of –55°C to +125°C and a storage temperature range of –55°C to +150°C. For continuous DC operation at rated VRWM (2.8V), derating begins above 25°C ambient per the published power derating curve: at 85°C ambient, maximum peak pulse power drops to ~70% of 300W. The device remains functional within its full TJ range, but sustained high-temperature operation requires thermal design validation per application conditions.
Does the SLVE2.8.TCT require external components for basic ESD protection?
No-the SLVE2.8.TCT is a standalone protection device requiring no external resistors, capacitors, or inductors for compliance with IEC 61000-4-2 Level 4 (±15kV air, ±8kV contact). Its integrated EPD structure provides complete transient suppression when correctly routed: short traces to ground plane, direct connection to protected line at pins 2 and 3, and grounding pins 1 and 4. Layout best practices-not additional components-are the critical implementation factor for SLVE2.8.TCT performance.
SLVE2.8.TCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- TO-253-4, TO-253AA
- Series:
- SLV
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 2.8V (Max)
- Voltage - Breakdown (Min):
- 3V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 24A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 100pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-143
SLVE2.8.TCT FAQ
1.How can I place an order for SLVE2.8.TCT through Aetrix?
Please submit a Request for Quotation (RFQ) for SLVE2.8.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 SLVE2.8.TCT reliable?
The price and inventory of SLVE2.8.TCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLVE2.8.TCT is usually 5 days.
3.What payment methods are accepted for SLVE2.8.TCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLVE2.8.TCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLVE2.8.TCT?
SLVE2.8.TCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLVE2.8.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 SLVE2.8.TCT?
For technical support, including SLVE2.8.TCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLVE2.8.TCT requirements.
6.How does Aetrix verify that SLVE2.8.TCT is sourced from the original manufacturer or authorized distributors?
All SLVE2.8.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 SLVE2.8.TCT meets industry standards.
7.What is the process for return or replacement of SLVE2.8.TCT?
All SLVE2.8.TCT units undergo pre-shipment inspection (PSI). If there is an issue with SLVE2.8.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 SLVE2.8.TCT part is unused and in its original packaging.
Return procedure for SLVE2.8.TCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLVE2.8.TCT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
