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onsemi SZNUP4301MR6T1G
- Part No.:
- SZNUP4301MR6T1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-74, SOT-457
- Datasheet:
-
SZNUP4301MR6T1G.pdf
- Description:
- TVS DIODE SC74
- Quantity:
- Payment:
- Shipping:
Inventory:4,741
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Product details
Overview
SZNUP4301MR6T1G from onsemi is a low-capacitance ESD protection diode array for four data lines, featuring 1.5 pF max I/O-to-I/O capacitance, 70 V reverse voltage rating, and AEC-Q101 qualification for automotive use - deployed in USB 2.0 data line protection and I²C bus interfaces.
For engineers reviewing the SZNUP4301MR6T1G datasheet, pinout, applications, or equivalent options, key selection criteria include IEC 61000-4-2 Level 4 (±8 kV contact / ±15 kV air) ESD immunity, SC-74 package footprint, and sub-1.5 pF inter-line capacitance to preserve high-speed signal integrity.
Technical Context
This device integrates six discrete Zener-type clamping diodes in a single SC-74 package: four I/O pins (pins 1, 3, 4, 6) each connect to ground via internal cathode-anode paths, while pins 2 and 5 serve as shared anodes. It operates as a bidirectional transient voltage suppressor with no DC bias requirement.
Designed specifically for low-voltage, high-speed digital interfaces, it delivers <1.5 pF I/O-to-I/O capacitance and ≤3 pF I/O-to-ground capacitance at 1 MHz, enabling operation up to USB 2.0 full-speed (480 Mbps) without signal distortion. Its thermal resistance (RJA = 556 °C/W) supports operation from −40 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±8 kV contact, ±15 kV air - meets Level 4 immunity for industrial and automotive interface ports |
| I/O-to-I/O Capacitance | Max 1.5 pF at 0 V, 1 MHz - preserves signal rise/fall times in USB 2.0 and I²C applications |
| Reverse Standoff Voltage | 70 V - protects 3.3 V and 5 V logic rails without leakage or false triggering |
| Peak Pulse Current (8/20 μs) | 4.5 A per channel - handles typical ESD transients without degradation |
| Junction Temperature Range | −40 °C to +150 °C - qualified for under-hood automotive environments per AEC-Q101 |
| Package | SC-74 (Case 318F), 6-pin surface-mount - 2.2 mm × 2.2 mm footprint, compatible with standard reflow profiles |
Pinout & Package
SC-74 package (Case 318F), 6-pin, Pb-free, tape-and-reel (3000 units). Pin 1 marked by microdot or bevelled edge; pin 1 = cathode, pin 2 = anode, pin 3 = cathode, pin 4 = cathode, pin 5 = anode, pin 6 = cathode - configured as four independent I/O-to-ground clamping paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Ground return path for I/O 1; connects protected line to GND during ESD event |
| 2 | Anode | Shared anode node tied internally to pins 1, 3, 4, 6 cathodes - forms common clamp reference |
| 3 | Cathode | Ground return path for I/O 2; enables independent clamping of second data line |
| 4 | Cathode | Ground return path for I/O 3; supports three-channel protection without external components |
| 5 | Anode | Second shared anode node - redundant connection improves current sharing and reliability |
| 6 | Cathode | Ground return path for I/O 4; completes four-line ESD protection in one package |
Key Features
| Feature | Design Value |
|---|---|
| Low inter-line capacitance | 1.5 pF max between I/O pins - prevents crosstalk and timing skew in parallel data buses |
| AEC-Q101 qualification | Validated for automotive electronics including infotainment and body control modules |
| JEDEC-compliant ESD robustness | HBM Class 3B (8 kV), MM Class C (400 V) - exceeds standard industrial interface requirements |
| Single-package integration | Replaces four discrete TVS diodes - reduces PCB area by >60% and eliminates routing complexity |
Applications
| USB 2.0 Data Line Protection | I²C Bus Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 host/device ports against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector entry point. Use Value: 1.5 pF I/O-to-I/O capacitance ensures <1% signal attenuation at 480 MHz, preserving eye diagram integrity. | Use Scenario: Shielding SDA and SCL lines in automotive sensor nodes and MCU peripherals from board-level ESD. IC Role / Device Role / Timing Role: Low-leakage clamping diode array connected between I²C lines and chassis ground. Use Value: 2.5 μA max reverse leakage at 70 V enables reliable operation in battery-powered systems with multi-day sleep modes. |
| Microcontroller Input Protection | Video Line Protection |
Use Scenario: Safeguarding GPIO, reset, and interrupt inputs on automotive-grade MCUs exposed to handling and assembly ESD. IC Role / Device Role / Timing Role: Point-of-entry protection element mounted adjacent to MCU package pins. Use Value: 70 V standoff voltage accommodates 5 V tolerant I/Os while preventing latch-up during transients. | Use Scenario: Guarding analog video outputs (e.g., CVBS, RGB) in set-top boxes and display controllers against touch discharge. IC Role / Device Role / Timing Role: Ground-referenced shunt protector with minimal parasitic loading on baseband video signals. Use Value: ≤3 pF I/O-to-ground capacitance avoids high-frequency roll-off beyond 10 MHz, maintaining luminance fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G | Single-channel, 3.3 V working voltage, 1.0 pF capacitance - lower clamping voltage but no multi-line integration | Requires four separate devices for four-line protection; increases layout area and BOM count | Preferred when tighter voltage clamping (<10 V) is required over integrated footprint efficiency |
| TPD2E001DRYR | Two-channel, 5.5 V working voltage, 1.5 pF I/O-to-I/O - same capacitance but only two lines per package | Needs two packages for four-line coverage; lacks AEC-Q101 qualification | Selected for cost-sensitive consumer electronics where automotive qualification is unnecessary |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, SZNUP4301MR6T1G uniquely delivers four-line protection, AEC-Q101 compliance, and 70 V standoff in one SC-74 package - reducing component count, PCB space, and qualification overhead for automotive and industrial designs.
Availability
SZNUP4301MR6T1G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment subsystems, and industrial I²C sensor networks requiring stable component supply across extended product lifecycles.
Supply support for SZNUP4301MR6T1G 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 power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, medical, and IoT applications.
SZNUP4301MR6T1G belongs to onsemi's ESD protection portfolio, engineered specifically for high-speed digital interface protection with minimal signal loading - targeting automotive data links, USB peripherals, and sensor communication buses.
FAQ
What is the maximum operating temperature for SZNUP4301MR6T1G?
SZNUP4301MR6T1G is rated for junction temperatures from −40 °C to +150 °C, validated per AEC-Q101 stress testing. This range supports deployment in engine bay modules and industrial enclosures where ambient temperatures exceed 105 °C. The device maintains specified clamping performance and leakage current limits across this full range, with thermal resistance RJA = 556 °C/W measured on FR-5 PCB.
Does SZNUP4301MR6T1G require external bias or control signals?
No, SZNUP4301MR6T1G operates passively without external bias, control signals, or power supply connections. Its internal Zener-clamp structure activates automatically during overvoltage transients, diverting current to ground via pins 2 and 5 anodes. This makes SZNUP4301MR6T1G ideal for always-on protection on unpowered or intermittently active data lines such as USB suspend states or I²C idle periods.
How many data lines can SZNUP4301MR6T1G protect simultaneously?
SZNUP4301MR6T1G protects exactly four independent data lines - I/O 1 through I/O 4 - using its six-pin SC-74 configuration. Pins 1, 3, 4, and 6 serve as cathodes tied to each protected line, while pins 2 and 5 function as shared anodes connected to ground. This architecture enables true simultaneous clamping across all four channels without interaction or shared impedance limitations.
Is SZNUP4301MR6T1G compliant with RoHS and REACH regulations?
Yes, SZNUP4301MR6T1G is Pb-free and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. The "G" suffix in the part number explicitly denotes Pb-free packaging, and the device uses matte tin lead finish with no exempted substances. Full material declarations and test reports are available through onsemi's compliance portal upon request.
Can SZNUP4301MR6T1G be used for HDMI or PCIe interface protection?
No, SZNUP4301MR6T1G is not recommended for HDMI or PCIe due to its 1.5 pF I/O-to-I/O capacitance - sufficient for USB 2.0 (480 Mbps) and I²C (up to 3.4 Mbps), but too high for HDMI 2.0 (6 Gbps) or PCIe Gen3 (8 GT/s), which require <0.3 pF loading. For those interfaces, onsemi's ESD7L5.0DT5G (0.25 pF) or similar ultra-low-capacitance arrays are specified instead of SZNUP4301MR6T1G.
SZNUP4301MR6T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-74, SOT-457
- 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):
- 70V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 1.6pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74
SZNUP4301MR6T1G FAQ
1.How can I place an order for SZNUP4301MR6T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNUP4301MR6T1G 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 SZNUP4301MR6T1G reliable?
The price and inventory of SZNUP4301MR6T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNUP4301MR6T1G is usually 5 days.
3.What payment methods are accepted for SZNUP4301MR6T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNUP4301MR6T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNUP4301MR6T1G?
SZNUP4301MR6T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNUP4301MR6T1G 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 SZNUP4301MR6T1G?
For technical support, including SZNUP4301MR6T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNUP4301MR6T1G requirements.
6.How does Aetrix verify that SZNUP4301MR6T1G is sourced from the original manufacturer or authorized distributors?
All SZNUP4301MR6T1G 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 SZNUP4301MR6T1G meets industry standards.
7.What is the process for return or replacement of SZNUP4301MR6T1G?
All SZNUP4301MR6T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZNUP4301MR6T1G, 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 SZNUP4301MR6T1G part is unused and in its original packaging.
Return procedure for SZNUP4301MR6T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZNUP4301MR6T1G 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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