onsemi NUP5120X6T2GH
- Part No.:
- NUP5120X6T2GH
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SOT-563, SOT-666
- Datasheet:
-
NUP5120X6T2GH.pdf
- Description:
- SURGE PROTECTOR ARRAY
- Quantity:
- Payment:

- Shipping:

Inventory:4,208
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Product details
Overview
NUP5120X6T2GH from onsemi is a 5-line ESD protection diode array in SOT-563 package, featuring monolithic common-anode architecture, 5.0 V reverse working voltage, 6.2–7.2 V breakdown voltage at 1 mA, and IEC 61000-4-2 compliance (15 kV air / 8 kV contact). It protects serial/parallel ports and handheld interfaces against transient surges in portable electronics.
For engineers reviewing the NUP5120X6T2GH datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under 16 V at 10 A IPP, 54–70 pF line-to-GND capacitance at 1 MHz, and Class 3B HBM ESD rating exceeding 8 kV - critical for USB, HDMI, and low-voltage I/O port hardening.
Technical Context
This device implements a single common-anode, five-cathode topology enabling simultaneous protection of five independent signal lines with shared ground reference. Its silicon structure delivers fast response to ESD transients (<1 ns) and handles 90 W peak power (8/20 µs waveform) without latch-up.
Designed for low-capacitance interface protection, it maintains ≤70 pF per line at 0 V bias and drops to ≤54 pF at 2.5 V reverse bias - preserving signal integrity for high-speed data lines up to 100 Mbps. The 5.0 V VRWM ensures compatibility with 3.3 V and 5 V logic systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5.0 V - Maximum continuous operating voltage before conduction; matches 3.3 V I/O rails with margin. |
| VBR (IT = 1 mA) | 6.2–7.2 V - Ensures reliable turn-on during ESD events while avoiding false triggering. |
| VCL @ IPP = 10 A | <16 V - Clamps transient energy below IC damage threshold for protected downstream logic. |
| CJ @ 1 MHz, 0 V | 54–70 pF - Low enough for USB 2.0 and UART signals; minimizes signal distortion. |
| ESD Rating (HBM) | >8 kV - Meets IEC 61000-4-2 Level 4 for system-level ESD immunity. |
| Package | SOT-563 - 1.60 × 1.20 × 0.55 mm, 0.50 mm pitch; enables dense PCB layout for multi-line ports. |
Pinout & Package
SOT-563 (Case 463A) is a 6-pin, surface-mount, Pb-free plastic package with 0.50 mm lead pitch and 1.60 mm × 1.20 mm footprint. Pin 2 is the common anode; pins 1, 3–6 are individual cathodes for five protected lines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Line 1) | ESD current path for first protected signal line; connects to I/O trace. |
| 2 | Common Anode | Shared connection to system ground or TVS return; defines reference for all five lines. |
| 3 | Cathode (Line 2) | Independent ESD path for second signal line; electrically isolated from other cathodes. |
| 4 | Cathode (Line 3) | Third dedicated ESD shunt; supports routing of separate data/control lines. |
| 5 | Cathode (Line 4) | Fourth low-capacitance ESD path; suitable for bidirectional or clock signals. |
| 6 | Cathode (Line 5) | Fifth protected line; completes full 5-line coverage in minimal board area. |
Key Features
| Feature | Design Value |
|---|---|
| 5-line monolithic integration | Reduces component count and PCB footprint vs. discrete diodes; eliminates inter-cathode coupling. |
| IEC 61000-4-2 certified | Validated 15 kV air / 8 kV contact discharge performance - satisfies end-equipment CE/UL immunity requirements. |
| Low dynamic capacitance | 54–70 pF per line preserves rise time and eye diagram integrity on 480 Mbps USB 2.0 links. |
| Pb-free SOT-563 package | RoHS-compliant construction with 260 °C reflow tolerance; compatible with standard automated assembly. |
Applications
| USB 2.0 Port Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting upstream/downstream USB 2.0 connectors against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor on D+ and D− lines, plus VBUS, ID, and GND-referenced paths. Use Value: Maintains <70 pF loading per line to avoid signal degradation while clamping transients below 16 V at 10 A. | Use Scenario: Hardening HDMI Display Data Channel (DDC) lines (SCL/SDA) against contact ESD in consumer AV equipment. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp for 5 V open-drain I²C bus lines operating at ≤100 kHz. Use Value: Prevents latch-up or gate oxide damage in HDMI source/sink controllers without distorting I²C timing margins. |
| Industrial Serial Interface (RS-232/485) | Portable Device Keypad & Touchscreen I/O |
Use Scenario: Safeguarding RS-232 transceiver I/O pins in factory automation terminals exposed to field ESD. IC Role / Device Role / Timing Role: Common-anode TVS array protecting TX, RX, RTS, CTS, and GND-return paths simultaneously. Use Value: Enables single-component surge suppression across all interface lines with matched clamping behavior and thermal sharing. | Use Scenario: Shielding capacitive touchscreen controller inputs and mechanical keypad scan lines in smartphones and tablets. IC Role / Device Role / Timing Role: ESD shunt for low-voltage (1.8–3.3 V), high-impedance analog/digital I/O nodes. Use Value: Delivers >8 kV HBM protection without adding series resistance or degrading touch sensitivity due to low leakage (<0.5 nA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z5.0T1G | Single-line SOD-523; 5.0 V VRWM; 12 pF typical capacitance; lower peak power (24 W). | Requires five devices for same line count; better for ultra-high-speed (>1 Gbps) lines but higher BOM cost and layout area. | Select when lowest possible capacitance is mandatory and board space allows discrete placement per line. |
| CM1224-05SO | 5-line SO-8 package; 5.5 V VRWM; 15 pF typical capacitance; 100 W peak power; larger footprint (4.9 × 6.0 mm). | Better thermal dissipation for repetitive surges; incompatible pinout; not drop-in for SOT-563 layouts. | Choose for industrial systems requiring higher surge endurance where PCB real estate permits larger package. |
Compared with ESD5Z5.0T1G and CM1224-05SO, the NUP5120X6T2GH uniquely balances 5-line integration, SOT-563 miniaturization, and 90 W surge capability - making it optimal for space-constrained consumer port protection where moderate speed and robustness are jointly required.
Availability
NUP5120X6T2GH is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC hardening, and industrial serial port surge mitigation requiring stable component supply across high-volume production cycles.
Supply support for NUP5120X6T2GH 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 NUP5120X6T2GH belongs to onsemi's transient voltage suppression portfolio, engineered specifically for compact, multi-line ESD protection in portable and interface-dense electronics.
FAQ
What is the maximum clamping voltage of the NUP5120X6T2GH at 10 A peak current?
The NUP5120X6T2GH clamps to less than 16 V at 10 A peak pulse current (IPP), as specified in Figure 3 of the official datasheet. This value ensures downstream 3.3 V or 5 V logic components remain within safe operating limits during ESD or surge events. The clamping performance is consistent across all five protected lines due to monolithic matching, and the NUP5120X6T2GH maintains this behavior over its full operating temperature range (−40 °C to +125 °C).
Does the NUP5120X6T2GH support IEC 61000-4-2 Level 4 ESD immunity?
Yes, the NUP5120X6T2GH is fully compliant with IEC 61000-4-2:2008, achieving 15 kV air discharge and 8 kV contact discharge - meeting Level 4 system-level ESD immunity requirements. This certification is validated per the test methodology in the datasheet and applies to each of the five protected lines independently. The NUP5120X6T2GH achieves this without external components, making it suitable for final-certified designs targeting CE, FCC, or UL marking.
What is the reverse leakage current specification for the NUP5120X6T2GH at 3 V bias?
The NUP5120X6T2GH exhibits a maximum reverse leakage current of 0.5 µA at VRWM = 3 V and TJ = 25 °C, with typical values near 0.01 µA. This ultralow leakage prevents signal integrity degradation or battery drain in always-on portable interfaces. The NUP5120X6T2GH maintains sub-microamp leakage even at elevated temperatures, supporting reliable operation in handheld devices with tight power budgets.
Can the NUP5120X6T2GH be used to protect high-speed differential pairs like USB 2.0 D+ and D−?
Yes, the NUP5120X6T2GH is qualified for USB 2.0 D+ and D− line protection, with typical capacitance of 54–70 pF per line at 0 V bias and 1 MHz. Its low capacitance preserves signal rise/fall times and eye opening for 480 Mbps data rates. The NUP5120X6T2GH's matched cathode characteristics ensure balanced clamping on both lines, preventing common-mode skew that could trigger receiver errors.
Is the NUP5120X6T2GH RoHS-compliant and halogen-free?
Yes, the NUP5120X6T2GH is a Pb-free, RoHS-compliant device manufactured in accordance with Directive 2011/65/EU and meets J-STD-609 Category 1 for halogen content. The SOT-563 package carries the "G" suffix indicating lead-free finish, and the device passes JEDEC J-STD-020 moisture sensitivity level 1 (MSL1) requirements. The NUP5120X6T2GH is rated for 260 °C solder reflow and supports standard automated assembly processes without special handling.
NUP5120X6T2GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SOT-563, SOT-666
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 5
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.2V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 90W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 54pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
NUP5120X6T2GH FAQ
1.How can I place an order for NUP5120X6T2GH through Aetrix?
Please submit a Request for Quotation (RFQ) for NUP5120X6T2GH 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 NUP5120X6T2GH reliable?
The price and inventory of NUP5120X6T2GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUP5120X6T2GH is usually 5 days.
3.What payment methods are accepted for NUP5120X6T2GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUP5120X6T2GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUP5120X6T2GH?
NUP5120X6T2GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUP5120X6T2GH 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 NUP5120X6T2GH?
For technical support, including NUP5120X6T2GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUP5120X6T2GH requirements.
6.How does Aetrix verify that NUP5120X6T2GH is sourced from the original manufacturer or authorized distributors?
All NUP5120X6T2GH 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 NUP5120X6T2GH meets industry standards.
7.What is the process for return or replacement of NUP5120X6T2GH?
All NUP5120X6T2GH units undergo pre-shipment inspection (PSI). If there is an issue with NUP5120X6T2GH, 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 NUP5120X6T2GH part is unused and in its original packaging.
Return procedure for NUP5120X6T2GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUP5120X6T2GH Tags

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ESD9B5.0ST5G
onsemi

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DESD3V3E1BL-7B
Diodes Incorporated

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ESD5Z3.3T1G
onsemi

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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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