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onsemi SZNUP1301ML3T1G
- Part No.:
- SZNUP1301ML3T1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
SZNUP1301ML3T1G.pdf
- Description:
- TVS DIODE SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,934
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Product details
Overview
SZNUP1301ML3T1G from onsemi is a low-capacitance ESD protection diode array in SOT-23 package, rated for 70 V reverse voltage, 0.9 pF max capacitance, and IEC 61000-4-2 Level 4 (15 kV air / 8 kV contact) compliance - designed to safeguard high-speed data lines such as I²C buses and video interfaces against electrostatic discharge.
For engineers reviewing the SZNUP1301ML3T1G datasheet, pinout, applications, or equivalent options, key selection criteria include rail-to-rail ESD clamping capability, sub-1 pF signal-line loading, AEC-Q101 qualification for automotive use, and compatibility with T1/E1, HDSL, and microcontroller input protection layouts.
Technical Context
The SZNUP1301ML3T1G integrates two back-to-back diodes in a single SOT-23-3 package (Style 11), enabling bidirectional transient suppression between I/O and VCC/GND rails. Its low 0.9 pF capacitance ensures minimal signal distortion on data lines up to 100 Mbps.
It operates across −65 °C to +150 °C junction temperature, supports 215 mA continuous forward current per diode, and delivers ESD robustness per JEDEC JESD22-A114 (HBM Class 3B) and IEC61000−4−2 Level 4 - verified using the standard ESD test circuit per Figure 1 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | Level 4: 15 kV air, 8 kV contact - protects against common handling and system-level ESD events |
| Diode Capacitance | 0.9 pF max at 0 V, 1 MHz - preserves signal integrity on high-speed serial lines like I²C and video |
| Reverse Standoff Voltage | 70 V - compatible with 3.3 V, 5 V, and 12 V rail-to-rail protection schemes without leakage |
| Clamping Voltage (IPP = 1 A) | Typ. 12 V - limits transient overvoltage to safe levels for downstream ICs |
| Operating Temperature Range | −65 °C to +150 °C - qualified for under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - meets stress test requirements for automotive electronics reliability |
Pinout & Package
Package: SOT-23 (TO-236), 3-pin, Pb-free, case 318, style 11. Dimensions: 2.90 × 1.30 × 1.00 mm, 1.90 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connects to positive rail (VCC) for clamping transients toward supply |
| 2 | Cathode | I/O line connection point - protected signal path input/output |
| 3 | Cathode-Anode | Shared terminal tied to ground (GND) - completes bidirectional clamp path |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail ESD clamping | Enables bidirectional protection between I/O and both VCC and GND without external biasing |
| Low 0.9 pF capacitance | Minimizes signal rise-time degradation on high-speed digital lines (e.g., I²C, UART, video) |
| AEC-Q101 qualification | Validated for automotive applications including infotainment and body control modules |
| Single-package integration | Replaces discrete dual-diode solutions, reducing board space and assembly cost |
Applications
| I²C Bus Protection | Video Line Protection |
|---|---|
Use Scenario: Protecting SDA/SCL lines in automotive camera modules and display interfaces from ESD during cable insertion or handling. IC Role / Device Role / Timing Role: Bidirectional transient suppressor placed directly at connector or IC pad to limit voltage excursion below 12 V during 15 kV air discharge. Use Value: Prevents latch-up or damage to 3.3 V I²C transceivers while maintaining <100 ns response time and <0.9 pF loading. |
Use Scenario: Shielding analog video outputs (CVBS, RGB) in set-top boxes and automotive rearview cameras from user-touch ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp between video signal and ground/VCC, preserving bandwidth up to 100 MHz. Use Value: Maintains signal fidelity with <0.9 pF parasitic capacitance and clamps transients to ≤12 V at 1 A peak current. |
| T1/E1 Secondary IC Protection | Microcontroller Input Protection |
Use Scenario: Safeguarding line-driver/receiver pins in telecom interface circuits exposed to lightning-induced surges and field ESD. IC Role / Device Role / Timing Role: Front-end ESD guard for secondary-side transceivers operating at 1.544/2.048 Mbps, compliant with GR-1089-CORE. Use Value: Delivers 70 V standoff and Level 4 IEC61000-4-2 immunity without degrading rise/fall times of T1/E1 waveforms. |
Use Scenario: Hardening GPIO, reset, and interrupt inputs on automotive-grade MCUs (e.g., S32K series) against board-level ESD. IC Role / Device Role / Timing Role: Localized clamp at MCU pin to divert >15 kV air-discharge energy before reaching internal ESD structures. Use Value: Extends system-level ESD margin beyond built-in IO protection, validated per AEC-Q100 Grade 2 temperature profile. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9X5.0ST5G | 0.7 pF typ capacitance, 5.0 V standoff, unidirectional configuration | Requires separate VCC and GND clamps; not rail-to-rail out-of-box | Preferred when lower capacitance is critical and system uses dedicated VCC/GND clamp layout |
| TPD2E001DRYR | 0.8 pF typ, 5.5 V standoff, integrated 100 Ω series resistor per line | Designed for USB D+/D−; includes current-limiting resistors unsuitable for high-current I/O | Best for USB 2.0 or low-power logic lines where series impedance is acceptable |
Compared with ESD9X5.0ST5G and TPD2E001DRYR, the SZNUP1301ML3T1G provides true rail-to-rail bidirectional clamping at 70 V standoff and AEC-Q101 qualification - making it uniquely suited for automotive T1/E1, video, and microcontroller I/O protection where high-voltage tolerance and zero-layout-change integration are required.
Availability
SZNUP1301ML3T1G is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial communication interfaces, and consumer video equipment requiring stable component supply and full AEC-Q101 traceability.
Supply support for SZNUP1301ML3T1G 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 (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The SZNUP1301ML3T1G belongs to onsemi's MicroIntegration ESD protection portfolio, engineered specifically for high-speed data line hardening in space-constrained, mission-critical systems where low capacitance and automotive qualification are mandatory.
FAQ
What is the maximum clamping voltage of the SZNUP1301ML3T1G at 1 A ESD current?
The SZNUP1301ML3T1G exhibits a typical clamping voltage of 12 V at 1 A peak pulse current (8/20 μs waveform), as specified in the device's electrical characteristics table. This value ensures downstream ICs remain within safe operating voltage limits during IEC61000-4-2 Level 4 ESD events. The SZNUP1301ML3T1G maintains this performance across its full −65 °C to +150 °C operating range.
Is the SZNUP1301ML3T1G pin-compatible with the NUP1301ML3T1G?
Yes - the SZNUP1301ML3T1G and NUP1301ML3T1G share identical SOT-23 package dimensions, pinout (Style 11), and electrical specifications. The "SZ" prefix denotes automotive-grade traceability and AEC-Q101 qualification, but the SZNUP1301ML3T1G is functionally and mechanically interchangeable with the NUP1301ML3T1G in non-automotive designs.
Does the SZNUP1301ML3T1G require external biasing for rail-to-rail operation?
No - the SZNUP1301ML3T1G's internal back-to-back diode configuration enables intrinsic rail-to-rail clamping without external bias components. Pin 1 connects to VCC, Pin 2 to the protected I/O line, and Pin 3 to GND, forming a complete bidirectional path that activates automatically during positive or negative transients.
Can the SZNUP1301ML3T1G be used on 12 V automotive data lines?
Yes - with a 70 V reverse standoff voltage and 12 V typical clamping at 1 A, the SZNUP1301ML3T1G is explicitly rated for 12 V system rails. It is deployed in automotive T1/E1 interfaces, camera links, and CAN/LIN auxiliary lines where transient suppression must coexist with nominal 12 V operation and AEC-Q101 reliability requirements.
What is the thermal resistance of the SZNUP1301ML3T1G in SOT-23 package?
The SZNUP1301ML3T1G has a junction-to-ambient thermal resistance (RJA) of 625 °C/W under standard FR-5 board conditions (1.0 × 0.75 × 0.062 in). This value reflects its suitability for low-power ESD protection roles where self-heating is negligible during transient events, and no heatsinking is required for normal operation.
SZNUP1301ML3T1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 1
- 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:
- 0.9pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
SZNUP1301ML3T1G FAQ
1.How can I place an order for SZNUP1301ML3T1G through Aetrix?
Please submit a Request for Quotation (RFQ) for SZNUP1301ML3T1G 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 SZNUP1301ML3T1G reliable?
The price and inventory of SZNUP1301ML3T1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SZNUP1301ML3T1G is usually 5 days.
3.What payment methods are accepted for SZNUP1301ML3T1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SZNUP1301ML3T1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SZNUP1301ML3T1G?
SZNUP1301ML3T1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SZNUP1301ML3T1G 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 SZNUP1301ML3T1G?
For technical support, including SZNUP1301ML3T1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SZNUP1301ML3T1G requirements.
6.How does Aetrix verify that SZNUP1301ML3T1G is sourced from the original manufacturer or authorized distributors?
All SZNUP1301ML3T1G 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 SZNUP1301ML3T1G meets industry standards.
7.What is the process for return or replacement of SZNUP1301ML3T1G?
All SZNUP1301ML3T1G units undergo pre-shipment inspection (PSI). If there is an issue with SZNUP1301ML3T1G, 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 SZNUP1301ML3T1G part is unused and in its original packaging.
Return procedure for SZNUP1301ML3T1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SZNUP1301ML3T1G 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
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D5V0L1B2WS-7
Diodes Incorporated
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