My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX3208EAUB+T
- Part No.:
- MAX3208EAUB+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- TVS Diodes
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX3208EAUB+T.pdf
- Description:
- TVS DIODE 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:825
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX3208EAUB+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, 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 MAX3208EAUB+T datasheet, MAX3208EAUB+T pinout, MAX3208EAUB+T application, or MAX3208EAUB+T equivalent, this device is selected for high-speed serial interface protection where minimal signal distortion, tight capacitance matching, and automotive-grade reliability are required - especially in FireWire IEEE 1394 and 10/100BASE-TX Ethernet port designs.
Technical Context
The MAX3208EAUB+T implements a dual-diode per channel architecture that steers ESD current to VCC or GND, with an integrated TVS to clamp VCC rail excursions during transients. Its optimized µMAX® pinout minimizes stub inductance on controlled-impedance differential traces.
It is specified for operation at VCC = 0.9V to 5.5V, draws only 1–100nA supply current, and achieves channel clamp voltages of VCC + 25V (HBM), VCC + 60V (IEC contact), and VCC + 100V (IEC air-gap) under defined test conditions - all while maintaining sub-3.2pF input capacitance and ±0.05pF inter-channel matching.
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 and automotive end equipment. |
| Channel I/O Capacitance | 2.6pF (typ) at VCC = +3.3V - preserves signal integrity on >400Mbps differential links like FireWire and Fast Ethernet. |
| Capacitance Matching | ±0.05pF channel-to-channel variation - ensures balanced differential pair performance and minimal skew. |
| Clamp Voltage (HBM) | VCC + 25V (positive), –25V (negative) - limits stress on downstream PHY ICs without requiring additional clamping. |
| Supply Voltage Range | 0.9V to 5.5V - supports legacy 3.3V and modern low-voltage I/O domains including 1.8V logic interfaces. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, industrial control, and set-top box applications. |
| Leakage Current | ±0.1μA max - avoids DC loading on high-impedance signal paths such as HDMI/DVI receiver inputs. |
Pinout & Package
The MAX3208EAUB+T is housed in a 10-pin µMAX® package (outline U10+2), measuring 3.0mm × 3.0mm × 1.0mm, with exposed pad (not electrically connected in this variant) and RoHS-compliant lead-free finish.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O1 | ESD-protected signal input/output - connects directly to protected line (e.g., FireWire TPB+ or Ethernet TX+). |
| 2 | GND | Ground reference - must be connected to low-impedance ground plane to minimize return path inductance for ESD current. |
| 3 | N.C. | No internal connection - pin left unconnected; no solder or trace required. |
| 4 | I/O2 | ESD-protected signal input/output - paired with Pin 1 for differential signaling (e.g., TPB– or TX–). |
| 5 | N.C. | No internal connection - pin left unconnected; no solder or trace required. |
| 6 | I/O3 | ESD-protected signal input/output - second differential pair (e.g., TPA+ or RX+). |
| 7 | VCC | Power-supply input - requires local 0.1μF ceramic bypass capacitor to GND for effective TVS clamping. |
| 8 | N.C. | No internal connection - pin left unconnected; no solder or trace required. |
| 9 | I/O4 | ESD-protected signal input/output - paired with Pin 6 for differential signaling (e.g., TPA– or RX–). |
| 10 | N.C. | No internal connection - pin left unconnected; no solder or trace required. |
Key Features
| Feature | Design Value |
|---|---|
| Low input capacitance | 2.6pF typical per channel - enables use on 480Mbps USB 2.0, FireWire 400, and 100BASE-TX without signal degradation. |
| Tight capacitance matching | ±0.05pF I/O-to-I/O variation - maintains common-mode rejection and timing alignment in differential pairs. |
| Integrated TVS clamp | Clamps VCC rail excursions during ESD events - reduces need for external bulk capacitance and improves system-level surge resilience. |
| Optimized µMAX pinout | Minimizes stub inductance on differential routing - supports controlled-impedance PCB layout without vias or bends near I/O pins. |
| Automotive temperature range | –40°C to +125°C operation - validated for extended life in infotainment head units, network gateways, and industrial Ethernet switches. |
Applications
| FireWire IEEE 1394 Port Protection | Ethernet 10/100BASE-TX Interface |
|---|---|
Use Scenario: Protecting FireWire 400 (480Mbps) differential pairs (TPA+/–, TPB+/–) at the connector entry point against user-handling ESD. IC Role / Device Role / Timing Role: Front-end ESD shunt that routes transient current to VCC/GND before it reaches the PHY IC's sensitive input stage. Use Value: Prevents latch-up or permanent damage to the FireWire controller while preserving eye diagram integrity via 2.6pF capacitance and matched channels. |
Use Scenario: Shielding 10/100BASE-TX transformer-coupled differential pairs (TX+/–, RX+/–) in industrial Ethernet switches from cable-discharge events. IC Role / Device Role / Timing Role: Low-capacitance, high-speed ESD clamp placed between magnetics and PHY to limit voltage overshoot during ±8kV contact discharge. Use Value: Enables compliance with IEC 61000-4-2 Level 4 without degrading signal rise/fall times or introducing jitter due to capacitance imbalance. |
| DVI/HDMI Source Port Protection | Set-Top Box USB 2.0 Hub Interface |
Use Scenario: Safeguarding DVI TMDS clock and data channels (single-ended or pseudo-differential) in AV receivers and projectors from hot-plug ESD. IC Role / Device Role / Timing Role: Per-channel bidirectional ESD suppressor that clamps both positive and negative transients without DC bias dependency. Use Value: Maintains <1% signal attenuation at 165MHz (DVI single-link) and prevents pixel corruption or blanking caused by ESD-induced receiver reset. |
Use Scenario: Adding secondary ESD protection to upstream USB 2.0 ports on multi-port STB hubs where host controller ESD margin is marginal. IC Role / Device Role / Timing Role: Four-channel parallel protector covering VBUS, D+, D–, and ID lines - configured with discrete diodes per line. Use Value: Extends system-level ESD robustness beyond USB-IF requirements while avoiding capacitance-induced packet errors at 480Mbps full speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SP3012-04UTG | 4-channel, 0.35pF typical capacitance, ±12kV HBM, no integrated VCC TVS - relies on system-level clamping. | Better for ultra-high-speed (>1Gbps) SerDes; unsuitable where VCC rail clamping is required. | Select when lowest possible capacitance is critical and board-level VCC decoupling is already robust. |
| TPD2EUSB30DR | 2-channel, 0.7pF capacitance, ±8kV IEC contact, integrated 5V VBUS switch - not pin-compatible and lacks automotive temp rating. | Targeted at USB 3.0 Type-A/B ports; includes power-switching functionality absent in MAX3208EAUB+T. | Choose only for USB 3.0 endpoint designs needing integrated VBUS control - not a functional replacement for MAX3208EAUB+T. |
Compared with SP3012-04UTG and TPD2EUSB30DR, the MAX3208EAUB+T uniquely combines automotive temperature support, integrated VCC TVS clamping, and 2.6pF capacitance in a 4-channel µMAX package - making it optimal for FireWire and Fast Ethernet where system-level VCC stability and AEC-Q200-aligned reliability are mandatory.
Availability
MAX3208EAUB+T is available at Aetrix Electronics and suitable for FireWire port protection, Ethernet PHY interface hardening, and DVI/HDMI source-side ESD mitigation requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for MAX3208EAUB+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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing markets.
The MAX3205E/MAX3207E/MAX3208E family was developed specifically for high-speed serial interface ESD protection - balancing ultra-low capacitance, precise channel matching, and integrated TVS functionality to simplify front-end protection design in bandwidth-constrained systems.
FAQ
What is the maximum operating voltage for MAX3208EAUB+T?
The MAX3208EAUB+T supports a supply voltage range of 0.9V to 5.5V. This allows direct integration with 1.8V, 3.3V, and 5V logic domains without level-shifting. The device's ESD clamping behavior remains consistent across this range, with clamp voltages scaling linearly relative to VCC (e.g., VCC + 25V for HBM). Operation outside this range risks permanent damage per absolute maximum ratings.
Does MAX3208EAUB+T require external components for basic ESD protection?
Yes - a 0.1μF low-ESR ceramic capacitor must be placed between VCC and GND, as close as possible to the MAX3208EAUB+T's VCC pin. This capacitor is essential for the integrated TVS to function effectively during ESD events. Without it, VCC rail excursion increases significantly, reducing protection margin. No series resistors or additional diodes are needed for standard operation.
Is MAX3208EAUB+T pin-compatible with other devices in the MAX320x series?
No - the MAX3208EAUB+T uses a 10-pin µMAX® package with unique pin assignments (e.g., I/O1–I/O4 on Pins 1,4,6,9), differing from the 16-pin TQFN or 6-pin SOT23 variants. Pinouts are not interchangeable across the MAX3205E/MAX3207E/MAX3208E family. Layout redesign is required when switching between packages, even within the same family.
What ESD standards does MAX3208EAUB+T meet?
The MAX3208EAUB+T is characterized to meet ±15kV Human Body Model (HBM), ±8kV IEC 61000-4-2 Contact Discharge, and ±15kV IEC 61000-4-2 Air-Gap Discharge. These ratings are verified per standard test setups and apply to each I/O channel independently. System-level compliance depends on proper PCB layout, including short trace lengths and low-inductance grounding.
Can MAX3208EAUB+T protect differential pairs without degrading signal integrity?
Yes - the MAX3208EAUB+T is explicitly designed for high-speed differential signals. With 2.6pF typical capacitance per channel and only ±0.05pF channel-to-channel variation, it preserves impedance balance and minimizes skew on FireWire and Ethernet differential pairs. Its µMAX® pinout further reduces stub inductance, supporting clean signal transmission up to 480Mbps without measurable eye closure.
MAX3208EAUB+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:
- Active
- 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
MAX3208EAUB+T FAQ
1.How can I place an order for MAX3208EAUB+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX3208EAUB+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 MAX3208EAUB+T reliable?
The price and inventory of MAX3208EAUB+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX3208EAUB+T is usually 5 days.
3.What payment methods are accepted for MAX3208EAUB+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX3208EAUB+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX3208EAUB+T?
MAX3208EAUB+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX3208EAUB+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 MAX3208EAUB+T?
For technical support, including MAX3208EAUB+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX3208EAUB+T requirements.
6.How does Aetrix verify that MAX3208EAUB+T is sourced from the original manufacturer or authorized distributors?
All MAX3208EAUB+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 MAX3208EAUB+T meets industry standards.
7.What is the process for return or replacement of MAX3208EAUB+T?
All MAX3208EAUB+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX3208EAUB+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 MAX3208EAUB+T part is unused and in its original packaging.
Return procedure for MAX3208EAUB+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX3208EAUB+T 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
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…
