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onsemi SZESD7361HT1G
- Part No.:
- SZESD7361HT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
SZESD7361HT1G.pdf
- Description:
- TVS DIODE 5VWM 34VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:9,389
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Product details
Overview
SZESD7361HT1G from onsemi is a unidirectional ESD protection diode in SOD−323 package, designed for high-speed data line protection with 0.55 pF max junction capacitance, 5 V working peak reverse voltage, and ±15 kV IEC 61000−4−2 contact ESD immunity-used in NFC antenna interfaces and wireless charging receiver circuits.
For engineers reviewing the SZESD7361HT1G datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage at 8 A (31 V), dynamic resistance (0.735 Ω), insertion loss at 5 GHz (2 dB), AEC−Q101 qualification, and SOD−323 footprint compatibility with space-constrained RF front-ends.
Technical Context
This device operates as a single-channel, cathode-grounded unidirectional TVS diode, leveraging silicon avalanche breakdown to clamp transient overvoltage before it reaches sensitive transceivers. Its low 0.55 pF capacitance ensures minimal signal distortion on 5 GHz-capable lines such as NFC and USB 2.0 differential pairs.
The clamping behavior is characterized via TLP testing (Z₀ = 50 Ω, tₚ = 100 ns), delivering 31 V clamping at 8 A and 34 V at 16 A-enabling robust protection without compromising high-frequency integrity. It meets ISO 10605 (±15 kV, 330 pF/2 kΩ) and IEC 61000−4−4 (40 A EFT) requirements for automotive-grade portable electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.55 pF max @ 0 V, 1 MHz - preserves signal integrity on >1 GHz RF/data paths like NFC and USB 2.0. |
| Clamping Voltage | 31 V @ 8 A IPP - limits voltage stress on downstream transceivers during ESD events. |
| Working Voltage | 5 V VRWM - matches standard I/O rail voltages in NFC controllers and wireless charging ICs. |
| ESD Rating | ±15 kV contact per IEC 61000−4−2 - exceeds Level 4 immunity for handheld consumer and automotive infotainment ports. |
| Dynamic Resistance | 0.735 Ω - enables fast response and low-voltage overshoot during sub-nanosecond transients. |
| Operating Temp | −55 °C to +125 °C - supports under-hood and mobile device deployment per AEC−Q101. |
Pinout & Package
SOD−323 surface-mount package (1.70 × 1.25 × 0.85 mm), anode-cathode polarity marked by band on terminal 1; optimized for RF layout with minimal parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded) | Cathode | Connected to system ground; provides low-impedance discharge path for positive transients. |
| 2 | Anode | Connected to protected data line (e.g., NFC antenna feed); conducts during negative ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.55 pF max ensures <2 dB insertion loss at 5 GHz-critical for NFC and high-speed serial links. |
| AEC−Q101 qualified | Validated for automotive applications including center console NFC readers and wireless charging pads. |
| IEC 61000−4−5 lightning surge rating | 1 A (8/20 µs) withstand capability-adds system-level robustness beyond basic ESD. |
| Pb-free, RoHS-compliant | Meets global environmental compliance for consumer and automotive supply chains. |
Applications
| NFC Antenna Protection | Wireless Charging Receiver Interface |
|---|---|
Use Scenario: Protecting 13.56 MHz NFC antenna traces from user-hand ESD during tap-to-pay or pairing. IC Role / Device Role / Timing Role: Unidirectional shunt protector placed between antenna feedline and NFC controller's RF input. Use Value: 0.55 pF capacitance avoids detuning of LC matching network; ±15 kV ESD rating prevents latch-up in integrated NFC SoCs. |
Use Scenario: Safeguarding Qi-compliant receiver coil interface against ESD during device placement on charging pad. IC Role / Device Role / Timing Role: Transient suppressor on AC-coupled communication lines (e.g., QI control channel) between RX IC and MCU. Use Value: 31 V clamping at 8 A ensures no overvoltage reaches 3.3 V logic inputs; SOD−323 footprint fits tight coil perimeter layouts. |
| USB 2.0 Data Line Protection | Automotive Infotainment Touchscreen Interface |
Use Scenario: Guarding D+/D− lines in portable accessories with USB 2.0 connectivity (e.g., dongles, adapters). IC Role / Device Role / Timing Role: Low-capacitance ESD clamp placed adjacent to USB connector, before PHY IC. Use Value: Sub-1 pF capacitance maintains eye diagram integrity up to 480 Mbps; 2 dB loss at 5 GHz avoids harmonics interference. |
Use Scenario: ESD hardening of capacitive touchscreen controller I²C bus in vehicle dashboards exposed to dry-climate static discharge. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional diode (cathode grounded) protecting SDA/SCL lines. Use Value: −55 °C to +125 °C operation ensures reliability across automotive thermal cycles; AEC−Q101 qualification confirms process control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD7361HT1G | Same electrical specs, non-automotive grade; lacks AEC−Q101 certification and PPAP support. | Targeted at consumer electronics only; not approved for automotive BOMs. | Select when cost sensitivity outweighs automotive qualification requirements. |
| CM1213A-04SO | 0.8 pF capacitance, 12 V VRWM, ±15 kV ESD rating; SOT-23-6 package with 4-line array. | Supports multi-line protection (e.g., HDMI or MIPI), but higher capacitance limits use in >1 GHz paths. | Choose for compact multi-line protection where 0.8 pF is acceptable and board area permits SOT-23-6. |
Compared with ESD7361HT1G and CM1213A-04SO, SZESD7361HT1G uniquely combines automotive qualification, ultra-low 0.55 pF capacitance, and SOD−323 size-making it optimal for space-constrained, safety-critical NFC and wireless charging nodes where signal fidelity and qualification traceability are both mandatory.
Availability
SZESD7361HT1G is available at Aetrix Electronics and suitable for NFC antenna protection, wireless charging receiver interfaces, and automotive infotainment touchscreen I²C buses requiring stable component supply across production lifecycles.
Supply support for SZESD7361HT1G 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 is a global semiconductor supplier specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
SZESD7361HT1G belongs to onsemi's ESD7361 series-engineered specifically for ultra-high-frequency data line protection in automotive and portable electronics where low capacitance and AEC−Q101 compliance are essential.
FAQ
What is the primary circuit role of the SZESD7361HT1G?
The SZESD7361HT1G functions as a unidirectional ESD protection diode, placed in shunt between a high-speed data line (e.g., NFC antenna feed) and ground. Its cathode connects to system ground and anode to the protected line, enabling rapid clamping of positive transients while blocking DC leakage. This configuration safeguards sensitive RF transceivers from ±15 kV ESD strikes without degrading signal integrity due to its 0.55 pF capacitance. The SZESD7361HT1G is not intended for bidirectional protection or power rail suppression.
Does the SZESD7361HT1G meet automotive qualification standards?
Yes, the SZESD7361HT1G is AEC−Q101 qualified and PPAP capable, as confirmed in the official onsemi datasheet (Rev. 6, February 2024). The "SZ" prefix explicitly denotes automotive-grade manufacturing controls, site-specific process validation, and extended temperature operation from −55 °C to +125 °C. This makes the SZESD7361HT1G suitable for automotive applications such as NFC-based keyless entry systems and wireless charging pads in vehicles-unlike the non-SZ ESD7361HT1G variant.
What is the clamping voltage of the SZESD7361HT1G at 8 A peak pulse current?
The clamping voltage of the SZESD7361HT1G is 31 V at 8 A peak pulse current (IPP), measured under TLP conditions (Z₀ = 50 Ω, tₚ = 100 ns). This value is specified in the Electrical Characteristics table of the onsemi datasheet and reflects the maximum voltage seen across the device during an ESD event of that magnitude. At 16 A IPP, clamping rises to 34 V. These values ensure downstream ICs operating at 3.3 V or 5 V rails remain within safe voltage margins during transient events.
Can the SZESD7361HT1G be used on USB 2.0 differential pairs?
Yes, the SZESD7361HT1G is suitable for USB 2.0 D+ and D− line protection due to its 0.55 pF capacitance, which minimizes signal distortion and preserves the 480 Mbps eye diagram. Its 2 dB insertion loss at 5 GHz avoids harmonic interference, and ±15 kV IEC 61000−4−2 rating exceeds USB-IF ESD requirements. Each SZESD7361HT1G protects one line; two devices (one per line) are required for full differential pair coverage. Layout must maintain symmetry and avoid shared ground inductance.
What package type and dimensions does the SZESD7361HT1G use?
The SZESD7361HT1G uses the SOD−323 package (Case 477), measuring 1.70 mm × 1.25 mm × 0.85 mm. It features a banded cathode (Pin 1) and anode (Pin 2), with polarity marking aligned to JEDEC standards. This compact, surface-mount outline supports high-density RF PCB layouts and is compatible with standard reflow profiles, including lead-free soldering at 260 °C for 10 seconds. Footprint land patterns must follow onsemi's recommended pad dimensions to ensure mechanical reliability and thermal performance.
SZESD7361HT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 16.5V
- Voltage - Clamping (Max) @ Ipp:
- 34V
- Current - Peak Pulse (10/1000µs):
- 16A (100ns)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 0.55pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
SZESD7361HT1G FAQ
1.How can I place an order for SZESD7361HT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZESD7361HT1G 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 SZESD7361HT1G reliable?
The price and inventory of SZESD7361HT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZESD7361HT1G is usually 5 days.
3.What payment methods are accepted for SZESD7361HT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZESD7361HT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZESD7361HT1G?
SZESD7361HT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZESD7361HT1G 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 SZESD7361HT1G?
For technical support, including SZESD7361HT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZESD7361HT1G requirements.
6.How does Aetrix verify that SZESD7361HT1G is sourced from the original manufacturer or authorized distributors?
All SZESD7361HT1G 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 SZESD7361HT1G meets industry standards.
7.What is the process for return or replacement of SZESD7361HT1G?
All SZESD7361HT1G units undergo pre-shipment inspection (PSI). If there is an issue with SZESD7361HT1G, 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 SZESD7361HT1G part is unused and in its original packaging.
Return procedure for SZESD7361HT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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