My Inquiry
My Account
Texas Instruments SN65240PWG4
- Part No.:
- SN65240PWG4
- Manufacturer:
- Texas Instruments
- Category:
- Mixed Technology
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN65240PWG4.pdf
- Description:
- TVS DEVICE MIXED 7V 8-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,940
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN65240PWG4 from Texas Instruments is a quadruple unidirectional transient voltage suppressor (TVS) designed for ESD protection of USB full-speed and low-speed data lines (D+, D−). It features 6.5-V minimum breakdown voltage, 35-pF typical input capacitance, ≤1-µA leakage at 6 V, −40°C to 85°C operating range, and TSSOP-8 package with four protected I/O channels.
For engineers reviewing the SN65240PWG4 datasheet, SN65240PWG4 pinout, SN65240PWG4 application, or SN65240PWG4 equivalent, this device serves as a system-level ESD protection solution for USB transceivers where low capacitance, sub-1-µA leakage, and 15-kV HBM robustness are critical selection criteria.
Technical Context
The SN65240PWG4 integrates four independent unidirectional TVS diodes in a single monolithic silicon structure, each configured as a Zener-triggered bipolar transistor–diode clamp. Its switching behavior is defined by a 6.5-V Zener threshold plus base-emitter turn-on voltage under positive transients, and forward conduction of a series diode under negative transients.
It operates passively without external bias-no supply required-and relies on local ground connection via four dedicated GND pins to shunt transient energy. The TSSOP-8 package provides low-inductance grounding paths essential for effective 15-kV HBM suppression while maintaining signal integrity on 12-Mbps USB data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown voltage | 6.5 V min - Ensures clamping begins above 5.5-V USB VBUS while protecting 3-V/5-V CMOS transceivers |
| Input capacitance | 35 pF typ - Enables use on full-speed USB (12 Mbps) without signal distortion or timing skew |
| Leakage current | 1 µA max at 6 V - Prevents DC loading of USB data lines and preserves receiver sensitivity |
| ESD rating (HBM) | ±15 kV - Meets IEC 61000-4-2 system-level requirements for robust hot-plug environments |
| Operating temperature | −40°C to +85°C - Supports industrial-grade USB host, hub, and peripheral designs |
| Peak power dissipation | 60 W - Handles short-duration ESD pulses without thermal failure |
| Surge current | 3 A peak forward / −9 A peak reverse - Sustains high-current transients without parametric shift |
Pinout & Package
TSSOP-8 (PW) package: 3.00 mm × 4.40 mm body, 1.2-mm max height, 0.65-mm lead pitch, exposed thermal pad not present. Four GND pins ensure low-inductance return path for transient currents.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A | Analog input | Transient suppressor input for USB D+ line - connects directly to upstream/downstream transceiver D+ |
| B | Analog input | Transient suppressor input for USB D− line - pairs with Pin A to protect differential data pair |
| C | Analog input | Transient suppressor input for third I/O line - supports dual-port or auxiliary signal protection |
| D | Analog input | Transient suppressor input for fourth I/O line - enables quad-channel protection in compact layout |
| GND (Pins 1, 3, 5, 7) | Power | Four dedicated ground terminals - must all connect to solid ground plane to minimize L(di/dt) during ESD events |
Key Features
| Feature | Design Value |
|---|---|
| Quadruple unidirectional TVS | Four independent clamps in one TSSOP-8 package - reduces PCB area vs discrete diode arrays |
| Low 35-pF capacitance | Preserves USB full-speed signal integrity up to 12 Mbps - unsuitable for USB 2.0 high-speed (480 Mbps) |
| 15-kV HBM ESD protection | Exceeds IEC 61000-4-2 Level 4 - eliminates need for external ESD components in most USB port designs |
| No external supply required | Passive operation - simplifies BOM and avoids power rail dependencies or startup sequencing concerns |
| Four-GND architecture | Reduces ground loop inductance - critical for fast-rising ESD transients (<1 ns rise time) |
Applications
| USB Full-Speed Host Port | USB Full-Speed Hub Port |
|---|---|
Use Scenario: Protecting front-panel or rear-panel USB Type-A ports on desktop PCs, industrial controllers, or embedded hosts against repeated human-body ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping D+ and D− lines to local ground before transients reach the USB PHY IC. Use Value: Maintains 12-Mbps data reliability while surviving ≥15-kV contact discharge per IEC 61000-4-2 without degrading signal rise/fall times. |
Use Scenario: Securing downstream USB ports on bus-powered or self-powered hubs used in factory automation, medical devices, or point-of-sale systems. IC Role / Device Role / Timing Role: Quad-channel transient suppression across two independent USB data pairs (Port 1: A/B; Port 2: C/D). Use Value: Enables dual-port protection with single-component footprint - reduces layout complexity and improves ESD margin consistency across ports. |
| USB Low-Speed Peripheral | Industrial USB Device Interface |
Use Scenario: Safeguarding HID-class peripherals such as barcode scanners, keyboards, or sensors connected via USB 1.1 low-speed (1.5 Mbps) links in warehouse or retail environments. IC Role / Device Role / Timing Role: Standoff voltage ≥6 V prevents false triggering during normal 3.3-V logic swings while clamping >8-kV air discharge. Use Value: Delivers 1-µA max leakage - avoids DC offset or bias shift that could impair low-speed receiver thresholds. |
Use Scenario: Hardening USB interfaces on programmable logic controllers (PLCs), HMIs, or test equipment exposed to noisy factory floors with frequent cable handling. IC Role / Device Role / Timing Role: System-level ESD protection element placed adjacent to USB connector to intercept transients before PCB routing enters sensitive analog/digital sections. Use Value: Four-GND pin configuration ensures <10-nH ground path inductance - critical for suppressing 30-A ESD currents with <100-ps rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65240P | Same electrical specs, PDIP-8 package (9.09 mm × 6.35 mm), through-hole mounting, no tape-and-reel option | Suitable for prototyping, legacy through-hole boards, or high-vibration environments requiring mechanical anchoring | Select SN65240P when manual soldering, wave soldering, or mechanical robustness outweighs space constraints. |
| TPD2E001DRSR | 2-channel, 15-pF capacitance, ±8-kV HBM, 0.925-mm × 0.925-mm DSBGA, lower leakage (100 nA) | Optimized for space-constrained portable USB ports; insufficient channel count for quad-line protection | Choose TPD2E001DRSR only for dual-line protection where ultra-low capacitance and minimal footprint are mandatory. |
Compared with SN65240P and TPD2E001DRSR, the SN65240PWG4 uniquely balances quad-channel protection, industry-standard TSSOP-8 manufacturability, and proven 15-kV HBM performance - making it the preferred choice for volume production of industrial and computing USB interfaces.
Availability
SN65240PWG4 is available at Aetrix Electronics and suitable for USB full-speed host ports, industrial USB hub designs, and embedded peripheral interfaces requiring stable component supply across extended product lifecycles.
Supply support for SN65240PWG4 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
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The SN65240PWG4 belongs to TI's USB transient suppressor family, engineered specifically to meet system-level ESD compliance for USB 1.1 full-speed and low-speed interfaces without compromising signal fidelity or board space.
FAQ
What is the primary function of the SN65240PWG4 in a USB interface?
The SN65240PWG4 functions as a quadruple unidirectional transient voltage suppressor that protects USB D+ and D− data lines from electrostatic discharge (ESD) and electrical noise transients. It clamps voltages above 6.5 V to ground, preventing damage to downstream USB transceivers or ASICs. Its design ensures compatibility with both full-speed (12 Mbps) and low-speed (1.5 Mbps) USB 1.1 signaling while maintaining low signal distortion.
Can the SN65240PWG4 be used for USB 2.0 high-speed (480 Mbps) applications?
No, the SN65240PWG4 is not suitable for USB 2.0 high-speed applications. Its 35-pF typical input capacitance introduces excessive signal attenuation and timing skew at 480 Mbps data rates. The datasheet explicitly states it is intended for USB low-speed and full-speed (12 Mbps) ports only. For high-speed USB, lower-capacitance alternatives such as the TPD2EUSB30 or TPD4EUSB30 are recommended.
How many ground connections does the SN65240PWG4 require, and why?
The SN65240PWG4 requires connection of all four GND pins (Pins 1, 3, 5, and 7) to a solid ground plane. This multi-ground architecture minimizes parasitic inductance in the transient current path, which is essential for effective suppression of fast-rising ESD events (<1 ns). Failure to connect all GND pins degrades clamping speed and reduces achievable ESD immunity below the rated ±15-kV HBM level.
Does the SN65240PWG4 require an external power supply to operate?
No, the SN65240PWG4 is a passive device and requires no external power supply. It operates solely through semiconductor junction behavior - Zener breakdown and bipolar conduction - activated only during overvoltage transients. This eliminates power rail dependencies, simplifies schematic design, and avoids potential conflicts with USB VBUS or other supply domains.
What is the maximum operating temperature range for the SN65240PWG4?
The SN65240PWG4 is specified for operation from −40°C to +85°C ambient temperature. This industrial-grade temperature range supports deployment in demanding environments such as factory automation equipment, networked peripherals, and embedded computing platforms where thermal stability and long-term reliability are critical. The device maintains its 6.5-V minimum breakdown voltage and 35-pF capacitance across this full range.
SN65240PWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Voltage - Clamping:
- 7V
- Technology:
- Mixed Technology
- Number of Circuits:
- 1
- Applications:
- USB
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
SN65240PWG4 FAQ
1.How can I place an order for SN65240PWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65240PWG4 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 SN65240PWG4 reliable?
The price and inventory of SN65240PWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65240PWG4 is usually 5 days.
3.What payment methods are accepted for SN65240PWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65240PWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65240PWG4?
SN65240PWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65240PWG4 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 SN65240PWG4?
For technical support, including SN65240PWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65240PWG4 requirements.
6.How does Aetrix verify that SN65240PWG4 is sourced from the original manufacturer or authorized distributors?
All SN65240PWG4 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 SN65240PWG4 meets industry standards.
7.What is the process for return or replacement of SN65240PWG4?
All SN65240PWG4 units undergo pre-shipment inspection (PSI). If there is an issue with SN65240PWG4, 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 SN65240PWG4 part is unused and in its original packaging.
Return procedure for SN65240PWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN65240PWG4 Tags
-
ESD03A5V5R17V
Stackpole Electronics Inc
-
ESDU02A5V5R17V
Stackpole Electronics Inc
-
0603ESDA-MLP7
Eaton - Electronics Division
.jpg)
-
0603ESDA2-TR2
Eaton - Electronics Division
-
PS04LTVA1
Eaton - Electronics Division
.jpg)
-
0402ESDA-MLP1
Eaton - Electronics Division
.jpg)
-
0402ESDA-MLP7
Eaton - Electronics Division
-
TPD2S017DBVR
Texas Instruments
.jpg)
-
V2F105A150Y2EDP
KYOCERA AVX
-
82307050029
Würth Elektronik
-
NCP360SNT1G
onsemi
-
V2F118A400Y2EDP
KYOCERA AVX
Tech Hub
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
