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onsemi ESD7331MUT5G
- Part No.:
- ESD7331MUT5G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
ESD7331MUT5G.pdf
- Description:
- TVS DIODE 3.3VWM 7.5VC 2X3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:70,945
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Product details
Overview
ESD7331MUT5G from onsemi is a bi-directional ESD protection diode in X3DFN2 package, featuring 0.4 pF typical junction capacitance, 3.3 V stand-off voltage, and 7.5 V clamping voltage at 1 A pulse current. It delivers IEC 61000-4-2 Level 4 (±15 kV contact/air) protection for high-speed data lines including USB 2.0 interfaces.
For engineers reviewing the ESD7331MUT5G datasheet, pinout, applications, or equivalent options, key selection criteria include low-capacitance signal integrity preservation, sub-1 V dynamic resistance, and validated clamping performance under 8 kV TLP pulses - critical for preserving eye diagram margins in 480 Mbps USB 2.0 channels.
Technical Context
The ESD7331MUT5G implements a symmetric bi-directional TVS structure with cathode-anode terminals, enabling bidirectional transient suppression without polarity dependency. Its 0.26 Ω dynamic resistance and 0.4–0.75 pF capacitance (1 MHz) ensure minimal insertion loss (<0.003 dB @ 100 MHz) and RF transparency up to 8.5 GHz.
Designed for placement directly at I/O pads, it operates within −55 °C to +150 °C junction temperature range and withstands 260 °C solder reflow. The device meets IEC 61000-4-2 Level 4 and supports transient immunity per IEC 61000-4-5 waveform with 30 ns/60 ns current decay compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.4 pF typ @ 0 V, 1 MHz - preserves signal integrity in USB 2.0 high-speed (480 Mbps) links |
| Clamping Voltage | 7.5 V @ 1 A IPP - limits voltage stress on protected IC I/O pins during ESD events |
| Stand-off Voltage | 3.3 V - matches standard I/O rail voltage, preventing leakage or false triggering |
| ESD Rating | ±15 kV contact / ±15 kV air per IEC 61000-4-2 Level 4 - certified system-level ESD robustness |
| Dynamic Resistance | 0.26 Ω - enables fast energy shunting with minimal voltage overshoot |
| Leakage Current | 1.0 µA max @ 3.3 V - avoids DC loading of sensitive analog or reference circuits |
| Package Size | 0.60 mm × 0.30 mm × 0.30 mm - ultra-compact footprint for space-constrained mobile PCB layouts |
Pinout & Package
ESD7331MUT5G uses the X3DFN2 (Case 152AF) surface-mount package: 0.62 mm × 0.32 mm body, 0.24 mm height, 0.35 mm pitch, with exposed pad not electrically connected. Marking includes cathode/anode identification and date code.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Reference terminal for bi-directional clamping; connects to protected line when used in series configuration |
| 2 | Anode | Reference terminal for bi-directional clamping; ties to ground or common return path in standard layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.4 pF typ ensures <0.003 dB insertion loss at 100 MHz - essential for USB 2.0 eye diagram compliance |
| Bi-directional clamping | Symmetric I-V curve (Fig. 7 & 8) protects AC-coupled or differential lines without polarity constraints |
| Sub-1 Ω dynamic impedance | 0.26 Ω measured via TLP - minimizes voltage overshoot during fast-rising ESD transients |
| IEC 61000-4-2 Level 4 certified | Validated ±15 kV contact discharge performance - satisfies industrial and consumer end-equipment requirements |
| Pb-free, RoHS-compliant | Halogen-free/BFR-free construction meets global environmental compliance mandates for shipped products |
Applications
| USB 2.0 High-Speed Interface | MHL 2.0 Link Protection |
|---|---|
Use Scenario: ESD protection on D+ and D− lines of portable USB peripherals operating at 480 Mbps. IC Role / Device Role / Timing Role: Bi-directional transient voltage suppressor placed adjacent to connector to clamp ESD before reaching PHY. Use Value: 0.4 pF capacitance prevents signal degradation; 7.5 V clamping prevents PHY latch-up or oxide damage. | Use Scenario: Protecting MHL 2.0 video/data lanes in smartphones and docking stations subject to repeated plug/unplug cycles. IC Role / Device Role / Timing Role: Low-capacitance ESD shunt between differential pairs and ground to maintain signal symmetry. Use Value: Symmetric clamping preserves common-mode rejection; 0.26 Ω RDYN ensures fast response to contact discharge. |
| eSATA Data Lines | Mobile Display Serial Interface |
Use Scenario: Shielding eSATA Gen II (3 Gbps) host and device connectors against user-handling ESD. IC Role / Device Role / Timing Role: Series-connected TVS on TX/RX paths to limit transient voltage without affecting DC bias. Use Value: 3.3 V VRWM aligns with eSATA termination voltage; 0.75 pF max capacitance avoids jitter accumulation. | Use Scenario: Protecting MIPI D-PHY clock and data lanes in OLED display modules inside thin smartphones. IC Role / Device Role / Timing Role: Ultra-small-footprint ESD guard on each lane, mounted directly at flex-to-PCB interface. Use Value: 0.60 mm × 0.30 mm package fits within 0.5 mm board edge clearance; 150 °C TJ rating supports sealed thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9X3.3SFT5G | 0.35 pF typ capacitance, 3.3 V VRWM, same X3DFN2 package | Lower clamping voltage (6.8 V @ 1 A), slightly higher leakage (2.5 µA) | Better for ultra-low-voltage I/O rails where tighter clamping margin is required |
| CM1224-04SO | 0.5 pF typ, 3.3 V VRWM, SOT-563 package (1.6 × 1.6 mm) | Larger footprint, higher thermal mass, lower RDYN (0.22 Ω) | Preferred when board space allows and higher surge handling (20 A IPP) is needed |
Compared with ESD9X3.3SFT5G and CM1224-04SO, the ESD7331MUT5G offers optimal balance of ultra-low capacitance, compact size, and validated USB 2.0 compatibility - making it ideal for next-gen mobile I/O protection where trace length and board area are constrained.
Availability
ESD7331MUT5G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, mobile display serial links, and MHL 2.0 implementations requiring stable component supply and consistent parametric performance across production lots.
Supply support for ESD7331MUT5G 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The ESD7331MUT5G belongs to onsemi's Micro-Packaged ESD Protection Diodes product line, engineered specifically for high-frequency data-line protection where minimal parasitic capacitance and precise clamping behavior are mandatory.
FAQ
What is the maximum clamping voltage of ESD7331MUT5G under IEC 61000-4-2 test conditions?
The ESD7331MUT5G exhibits a clamping voltage of ≤12 V under ±8 kV IEC 61000-4-2 contact discharge, as shown in Figures 1 and 2 of its datasheet. At 1 A TLP pulse, VC is 7.5 V - a value confirmed across production lots and used to validate safe operation of downstream USB 2.0 PHYs. This clamping level ensures protected ICs remain below absolute maximum ratings during real-world ESD events.
Does ESD7331MUT5G support bi-directional signal lines like USB D+/D−?
Yes, ESD7331MUT5G is explicitly designed as a bi-directional ESD protection diode, with symmetrical I-V characteristics verified in both positive and negative TLP curves (Figures 7 and 8). Its cathode-anode configuration allows direct placement across differential pairs without polarity concerns, making it suitable for USB 2.0 D+/D−, MHL 2.0, and other AC-coupled high-speed interfaces.
What is the thermal resistance (RJA) of ESD7331MUT5G on a standard FR-5 board?
The ESD7331MUT5G has a thermal resistance of 400 °C/W from junction to ambient on an FR-5 board (1.0 × 0.75 × 0.62 in.), per Note 1 in the Maximum Ratings table. This value reflects its ultra-small X3DFN2 package and guides thermal design for sustained surge conditions - though its primary use case remains short-duration ESD transients rather than continuous power dissipation.
Can ESD7331MUT5G be used on 5 V logic lines?
No - ESD7331MUT5G has a 3.3 V working peak reverse voltage (VRWM) and 4.0 V minimum breakdown voltage (VBR). Applying it to 5 V lines risks premature conduction and excessive leakage. For 5 V applications, consider onsemi's ESD7351MUT5G (5.0 V VRWM) or similar variants explicitly rated for that voltage rail.
Is ESD7331MUT5G compatible with lead-free reflow processes?
Yes, ESD7331MUT5G is Pb-free and qualified for standard lead-free reflow profiles, with a maximum lead solder temperature of 260 °C for 10 seconds. Its X3DFN2 package meets J-STD-020 moisture sensitivity level 1 (MSL-1), eliminating bake requirements prior to assembly - simplifying manufacturing for high-volume mobile PCB production.
ESD7331MUT5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 7.5V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- USB
- Capacitance @ Frequency:
- 0.4pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-X3DFN (0.6x0.3) (0201)
ESD7331MUT5G FAQ
1.How can I place an order for ESD7331MUT5G through Aetrix?
Please submit a Request for Quotation (RFQ) for ESD7331MUT5G 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 ESD7331MUT5G reliable?
The price and inventory of ESD7331MUT5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESD7331MUT5G is usually 5 days.
3.What payment methods are accepted for ESD7331MUT5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESD7331MUT5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESD7331MUT5G?
ESD7331MUT5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESD7331MUT5G 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 ESD7331MUT5G?
For technical support, including ESD7331MUT5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESD7331MUT5G requirements.
6.How does Aetrix verify that ESD7331MUT5G is sourced from the original manufacturer or authorized distributors?
All ESD7331MUT5G 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 ESD7331MUT5G meets industry standards.
7.What is the process for return or replacement of ESD7331MUT5G?
All ESD7331MUT5G units undergo pre-shipment inspection (PSI). If there is an issue with ESD7331MUT5G, 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 ESD7331MUT5G part is unused and in its original packaging.
Return procedure for ESD7331MUT5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ESD7331MUT5G 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
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