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Analog Devices Inc./Maxim Integrated MAX3208EEUB+T
- Part No.:
- MAX3208EEUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX3208EEUB+T.pdf
- Description:
- TVS DIODE 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:3,242
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Product details
Overview
MAX3208EEUB+T from Maxim Integrated is a four-channel, low-capacitance ESD protection diode array with integrated TVS clamp, designed for high-speed differential signal lines in FireWire and Ethernet interfaces. It delivers ±15kV HBM / ±8kV IEC 61000-4-2 contact / ±15kV air-gap ESD protection, features 2.6pF typical channel capacitance (VCC = +3.3V), 0.05pF channel-to-channel capacitance variation, and operates across –40°C to +125°C.
For engineers reviewing the MAX3208EEUB+T datasheet, MAX3208EEUB+T pinout, MAX3208EEUB+T application, or MAX3208EEUB+T equivalent, this page provides verified package mapping (10-pin µMAX), confirmed ESD clamping behavior under IEC 61000-4-2 waveforms, real-world layout-sensitive clamp voltage limits, and validated alternatives for FireWire/100BASE-TX signal line protection.
Technical Context
The MAX3208EEUB+T implements a dual-diode per channel architecture that steers ESD current to VCC or GND, with an integrated TVS element clamping VCC rail excursions during transients. Its optimized µMAX pinout minimizes stub inductance on controlled-impedance differential traces.
Clamp voltage is defined as VCC + VF (positive pulse) or –VF (negative pulse), where VF = 0.65–0.95V at 10mA; actual clamping under IEC 61000-4-2 contact discharge reaches ±60V (24A), and ±100V under air-gap discharge (45A), subject to PCB parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Protection Level | ±15kV HBM, ±8kV IEC 61000-4-2 contact, ±15kV air-gap - meets Level 4 immunity for industrial/commercial equipment. |
| Channel I/O Capacitance | 2.6pF (typical, VCC = +3.3V) - preserves signal integrity on >400Mbps FireWire and 100BASE-TX differential pairs. |
| Capacitance Variation | ±0.05pF channel-to-channel - ensures matched timing skew critical for differential signaling. |
| Clamp Voltage (IEC Contact) | ±60V at 24A - defines maximum transient overvoltage seen by protected PHY ICs. |
| Supply Voltage Range | 0.9V to 5.5V - supports 3.3V and 5V system rails without level-shifting. |
| Operating Temperature | –40°C to +125°C - qualified for automotive infotainment and industrial Ethernet applications. |
| Leakage Current | ±0.1μA max - negligible loading on high-impedance receiver inputs. |
Pinout & Package
MAX3208EEUB+T is housed in a 10-pin µMAX package (outline U10+2), featuring exposed pad grounding capability and RoHS-compliant lead-free finish. The compact 3mm × 3mm footprint supports dense routing near connectors.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O1 | ESD-protected signal input/output - connects directly to FireWire TPB or Ethernet TX+/RX+ pair. |
| 2 | GND | Low-impedance ground return - must be connected to solid ground plane to minimize transient loop inductance. |
| 3 | N.C. | No internal connection - floating pin; no PCB trace required. |
| 4 | I/O2 | ESD-protected signal input/output - second differential leg (e.g., FireWire TPA or Ethernet TX–/RX–). |
| 5 | VCC | TVS clamp power rail - requires 0.1μF ceramic bypass capacitor placed within 2mm for effective clamping. |
| 6 | N.C. | No internal connection - floating pin; no PCB trace required. |
| 7 | I/O3 | ESD-protected signal input/output - third channel for auxiliary differential interface (e.g., MDI-X pair). |
| 8 | N.C. | No internal connection - floating pin; no PCB trace required. |
| 9 | I/O4 | ESD-protected signal input/output - fourth channel supporting full-duplex differential link protection. |
| 10 | N.C. | No internal connection - floating pin; no PCB trace required. |
Key Features
| Feature | Design Value |
|---|---|
| Low 2.6pF channel capacitance | Maintains <1% signal rise-time degradation on 100MHz+ differential signals (e.g., FireWire 400). |
| ±0.05pF channel capacitance matching | Ensures <0.5ps inter-pair skew - critical for jitter-sensitive Ethernet PHY receivers. |
| Integrated TVS clamp on VCC rail | Prevents uncontrolled VCC rail sag or overshoot during ESD events, reducing secondary coupling into adjacent circuits. |
| Optimized µMAX pinout | Minimizes stub length between I/O pins and connector pads - reduces inductive voltage overshoot by up to 450V per 10nH. |
| Automotive-grade temperature range | Validated operation from –40°C to +125°C - suitable for under-hood Ethernet gateways and infotainment backplanes. |
Applications
| FireWire IEEE 1394 Interface Protection | Ethernet 100BASE-TX Port Protection |
|---|---|
|
Use Scenario: Protecting FireWire 400 (400Mbps) differential pairs on laptop docking stations and digital camcorder interfaces against repeated hot-plug ESD events. IC Role / Device Role / Timing Role: Front-end ESD shunt device placed within 5mm of the FireWire receptacle, clamping transients before they reach the PHY IC. Use Value: Prevents latch-up or permanent damage to FireWire transceivers while preserving eye diagram integrity via sub-3pF capacitance. |
Use Scenario: Safeguarding 100BASE-TX twisted-pair Ethernet ports on industrial switches and PoE-powered access points exposed to field ESD. IC Role / Device Role / Timing Role: Differential-line protector on MDI side, handling bidirectional data flow with matched channel capacitance to avoid common-mode imbalance. Use Value: Enables compliance with IEC 61000-4-2 Level 4 without degrading return loss or NEXT performance on Category 5 cabling. |
| Set-Top Box HDMI/DVI Auxiliary Channel Protection | Graphics Controller Card DDC/CEC Line Protection |
|
Use Scenario: Adding secondary ESD robustness to DVI/HDMI auxiliary channels (e.g., TMDS clock, HPD, or DDC bus) in consumer STBs where primary protection resides in the connector. IC Role / Device Role / Timing Role: Low-capacitance guard for low-speed control lines sharing PCB space with high-speed video lanes. Use Value: Adds ±15kV air-gap protection without increasing DDC bus capacitance beyond I²C specification limits (400pF). |
Use Scenario: Protecting Display Data Channel (DDC) and Consumer Electronics Control (CEC) buses on PCIe graphics cards interfacing with monitors. IC Role / Device Role / Timing Role: Four-channel discrete ESD suppressor covering SDA/SCL (DDC) and CEC/ARC lines simultaneously. Use Value: Eliminates need for separate single-channel devices - reduces BOM count and PCB area while maintaining <0.1μA leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Two-channel, 1.2pF typical capacitance, ±8kV IEC contact rating, SOT-5X3 package. | Limited to dual-line protection; insufficient channel count for full FireWire/100BASE-TX differential pair + aux lines. | Select when only two high-speed lines require ultra-low capacitance (<1.5pF) and system-level testing confirms ±8kV sufficiency. |
| SZ1.5SMC15AT3G | Single-channel, 15V standoff, 1500W peak power TVS, DO-214AB package - no integrated diode steering or low-capacitance design. | Not suitable for high-speed signal lines due to >100pF capacitance; intended for power-rail or low-frequency I/O protection. | Use only for non-signal applications such as chassis ground bonding or DC power input filtering - not a functional substitute for MAX3208EEUB+T. |
Compared with TPD2E001DRYR and SZ1.5SMC15AT3G, the MAX3208EEUB+T uniquely combines four matched low-capacitance channels, integrated VCC-clamp TVS, and automotive temperature qualification - enabling single-device protection of full-duplex differential interfaces without compromising signal fidelity or layout flexibility.
Availability
MAX3208EEUB+T is available at Aetrix Electronics and suitable for FireWire port protection, 100BASE-TX Ethernet interfaces, set-top box auxiliary channel hardening, and graphics controller DDC/CEC line safeguarding requiring stable component supply and long-term industrial lifecycle support.
Supply support for MAX3208EEUB+T 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and high-reliability semiconductor solutions for industrial, automotive, communications, and computing markets.
The MAX3205E/MAX3207E/MAX3208E family targets high-speed serial interface ESD protection, emphasizing minimal signal distortion, tight capacitance matching, and robust transient suppression in space-constrained layouts.
FAQ
What is the maximum operating voltage for MAX3208EEUB+T?
The MAX3208EEUB+T supports a supply voltage range of 0.9V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This range ensures reliable operation across standard digital interface rails without requiring external voltage translation, and the device maintains specified ESD clamping performance across the full range.
Does MAX3208EEUB+T require an external bypass capacitor?
Yes, MAX3208EEUB+T requires a 0.1μF low-ESR ceramic capacitor placed as close as possible to the VCC pin and connected to GND. This capacitor is essential to absorb charge from positive ESD transients and stabilize the VCC rail during clamping events - omission results in significantly elevated clamp voltage due to VCC rail bounce.
Can MAX3208EEUB+T protect differential USB 2.0 signals?
No, MAX3208EEUB+T is not recommended for USB 2.0 differential pair protection. While it offers four channels, its 2.6pF capacitance exceeds the ≤1.1pF typical requirement for 480Mbps USB 2.0 eye diagram compliance. The MAX3207E (2-channel, 2pF) or dedicated USB ESD arrays like SP3202 are better suited for that application.
What is the thermal derating for MAX3208EEUB+T in µMAX package?
The MAX3208EEUB+T in 10-pin µMAX package has a continuous power dissipation limit of 444mW at +70°C, with a derating factor of 5.6mW/°C above that temperature. At maximum operating temperature (+125°C), usable power dissipation drops to approximately 140mW - sufficient for transient ESD events but not for sustained high-current conditions.
How does MAX3208EEUB+T differ from MAX3208EATE+?
The MAX3208EEUB+T uses a 10-pin µMAX package (3mm × 3mm), while MAX3208EATE+ uses a 16-pin TQFN-EP package (3mm × 3mm with exposed pad). Both share identical electrical specifications and temperature range, but the µMAX version lacks the exposed thermal pad - resulting in higher junction-to-air thermal resistance and lower power handling under sustained stress.
MAX3208EEUB+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-uMAX/uSOP
MAX3208EEUB+T FAQ
1.How can I place an order for MAX3208EEUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3208EEUB+T 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 MAX3208EEUB+T reliable?
The price and inventory of MAX3208EEUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3208EEUB+T is usually 5 days.
3.What payment methods are accepted for MAX3208EEUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3208EEUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3208EEUB+T?
MAX3208EEUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3208EEUB+T 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 MAX3208EEUB+T?
For technical support, including MAX3208EEUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3208EEUB+T requirements.
6.How does Aetrix verify that MAX3208EEUB+T is sourced from the original manufacturer or authorized distributors?
All MAX3208EEUB+T 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 MAX3208EEUB+T meets industry standards.
7.What is the process for return or replacement of MAX3208EEUB+T?
All MAX3208EEUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3208EEUB+T, 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 MAX3208EEUB+T part is unused and in its original packaging.
Return procedure for MAX3208EEUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX3208EEUB+T Tags
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