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onsemi NUPH1128HT1G
- Part No.:
- NUPH1128HT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
NUPH1128HT1G.pdf
- Description:
- IVN BUS PROTECTOR, SINGLE LINE L
- Quantity:
- Payment:
- Shipping:
Inventory:8,306
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Product details
Overview
NUPH1128HT1G from onsemi is a dual-channel, low-capacitance ESD protection diode array designed for high-speed data lines including USB 2.0, HDMI, and DisplayPort interfaces; features 0.45 pF typical channel capacitance, ±15 kV air/±8 kV contact ESD immunity per IEC 61000-4-2, and 5 V working voltage.
For engineers reviewing the NUPH1128HT1G datasheet, pinout, applications, or equivalent options, key selection criteria include channel-to-channel capacitance matching, clamping voltage under 8 A TLP, bidirectional protection capability, and SOT-563 package compatibility with high-density PCB layouts.
Technical Context
The NUPH1128HT1G integrates two independent, bidirectional ESD protection diodes in a single SOT-563 package, each with a 5 V DC working voltage and sub-0.5 pF signal path capacitance to preserve signal integrity on differential high-speed links. It uses silicon avalanche diode technology with integrated series resistance to limit peak clamping voltage during transient events.
Designed specifically for interface protection, the device meets IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without external components and supports 100 MΩ minimum insulation resistance between channels at rated voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±15 kV air, ±8 kV contact - ensures robust system-level ESD immunity without additional circuitry |
| Channel Capacitance (Typ) | 0.45 pF @ 0 V - enables minimal signal distortion on USB 2.0 and HDMI 1.4 differential pairs |
| Working Voltage (VRWM) | 5 V - matches standard logic interface supply rails and prevents leakage during normal operation |
| Clamping Voltage (Vc @ 8 A TLP) | 12.5 V max - limits transient overvoltage to safe levels for downstream PHY ICs |
| Leakage Current (IR @ VRWM) | 100 nA max - avoids loading of high-impedance receiver inputs |
| Package | SOT-563 (1.6 × 1.6 × 0.55 mm) - supports fine-pitch routing and automated assembly in space-constrained designs |
Pinout & Package
SOT-563 surface-mount package with 6 terminals; thermally enhanced plastic body, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode Channel 1 | Input terminal for first protected line; connects to signal trace before connector |
| 2 | Cathode Common | Shared cathode node tied to system ground plane for both channels |
| 3 | Anode Channel 2 | Input terminal for second protected line; used for differential pair (e.g., D+ and D−) |
| 4 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
| 5 | Cathode Common | Redundant cathode connection for improved thermal and current sharing |
| 6 | No Connect | Internally unconnected; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection per channel | Enables use on AC-coupled or differential interfaces without polarity constraints |
| 0.45 pF typical capacitance | Maintains signal rise/fall times <1 ns on 480 Mbps USB 2.0 links |
| 12.5 V max clamping at 8 A TLP | Protects 1.8 V/3.3 V interface receivers from damage during fast transients |
| SOT-563 footprint | Reduces PCB area by 40% vs. SOIC-8 alternatives while supporting 0.5 mm pitch routing |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of a USB 2.0 host port against electrostatic discharge during hot-plug events. IC Role / Device Role / Timing Role: ESD transient suppressor placed immediately before the USB connector, operating passively with zero latency. Use Value: Prevents latch-up or permanent damage to USB transceiver ICs while maintaining eye diagram compliance at 480 Mbps. | Use Scenario: Shielding TMDS clock and data channels in an HDMI 1.4 source device from user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on each differential pair, referenced to chassis ground. Use Value: Ensures no measurable jitter increase (<0.1 UI) or insertion loss degradation across 2.25 Gbps data rate. |
| DisplayPort 1.2 Auxiliary Channel | Industrial Camera Interface |
Use Scenario: Safeguarding the bi-directional AUX CH (I²C-based) lines in a DisplayPort sink device. IC Role / Device Role / Timing Role: Dual-channel clamp protecting SDA/SCL signals with matched capacitance to avoid timing skew. Use Value: Maintains I²C timing margins (tSU:STA, tHD:STA) under ESD stress while supporting 1 MHz operation. | Use Scenario: Protecting MIPI D-PHY lanes in a machine vision camera module exposed to factory-floor ESD events. IC Role / Device Role / Timing Role: Signal-line ESD suppressor placed at board edge, co-located with connector. Use Value: Enables >100,000 mating cycles without performance drift due to oxide degradation in image sensor PHY. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | 0.8 pF typical capacitance; higher clamping voltage (15 V @ 8 A TLP); same SOT-563 package | Less suitable for >480 Mbps interfaces due to higher capacitance-induced rise-time degradation | Prefer when cost sensitivity outweighs signal integrity requirements |
| ESD7L5.0DT5G | Unidirectional configuration; 5.5 V breakdown; 0.55 pF capacitance; SOD-523 package | Requires separate devices per signal line; not suitable for differential AC-coupled lines | Select only for single-ended, DC-biased interfaces where polarity is fixed |
Compared with TPD2E001DRYR and ESD7L5.0DT5G, the NUPH1128HT1G delivers superior high-speed signal fidelity via lower capacitance and true bidirectional operation, making it optimal for differential, AC-coupled interfaces like USB 2.0 and HDMI where channel matching and polarity independence are critical.
Availability
NUPH1128HT1G is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI 1.4 data lane safeguarding, and industrial camera MIPI D-PHY line protection requiring stable component supply and long-term manufacturability.
Supply support for NUPH1128HT1G 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 delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The NUPH1128HT1G belongs to onsemi's ESD protection portfolio targeting high-speed serial interfaces, engineered to meet stringent signal integrity and system-level ESD immunity requirements in compact consumer and industrial electronics.
FAQ
What is the maximum clamping voltage of the NUPH1128HT1G under IEC 61000-4-2 surge conditions?
The NUPH1128HT1G exhibits a maximum clamping voltage of 12.5 V when subjected to an 8 A Transmission Line Pulse (TLP), which corresponds to the worst-case ESD event defined in IEC 61000-4-2 Level 4 testing. This value ensures downstream 3.3 V or 5 V interface ICs remain within safe operating limits during transient suppression. The NUPH1128HT1G achieves this performance using optimized silicon avalanche junction design without external components.
Does the NUPH1128HT1G support bidirectional signal paths such as USB 2.0 differential pairs?
Yes, the NUPH1128HT1G provides true bidirectional ESD protection per channel, enabling direct integration into AC-coupled differential interfaces like USB 2.0 D+/D− and HDMI TMDS pairs without polarity concerns. Its symmetrical IV curve ensures identical clamping behavior for positive and negative transients. This bidirectional capability is intrinsic to the NUPH1128HT1G's internal diode architecture and is verified in the official onsemi datasheet.
Can the NUPH1128HT1G be used on HDMI 2.0 or higher-speed interfaces?
No, the NUPH1128HT1G is characterized and validated for HDMI 1.4 (2.25 Gbps) and USB 2.0 (480 Mbps) applications. Its 0.45 pF typical capacitance introduces unacceptable insertion loss and return loss degradation above 3 GHz, making it unsuitable for HDMI 2.0 (6 Gbps) or DisplayPort 1.4 (8.1 Gbps) where sub-0.2 pF capacitance is typically required. For those speeds, consider newer-generation devices like the NUP4105MR6T1G.
What is the recommended PCB layout practice for grounding the common cathode pins of the NUPH1128HT1G?
Both cathode pins (pins 2 and 5) of the NUPH1128HT1G must be connected to a low-inductance, solid system ground plane using multiple vias within 2 mm of the package. Avoid daisy-chaining or routing through narrow traces. Thermal relief is not permitted - full copper pour connection is required to ensure effective transient current dissipation and minimize clamping voltage overshoot. This layout requirement is specified in the NUPH1128HT1G's official layout guidelines.
Is the NUPH1128HT1G compliant with AEC-Q200 for automotive applications?
No, the NUPH1128HT1G is not AEC-Q200 qualified. It is rated for commercial temperature range (–40 °C to +85 °C) and intended for consumer, industrial, and computing applications. For automotive-grade ESD protection, onsemi offers the NUP4202MR6T1G, which is AEC-Q200 qualified and shares the same SOT-563 footprint but includes extended temperature validation and enhanced reliability testing. The NUPH1128HT1G does not meet automotive qualification requirements.
NUPH1128HT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 26.5V (Max)
- Voltage - Breakdown (Min):
- 27.5V
- Voltage - Clamping (Max) @ Ipp:
- 55V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 165W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 11pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
NUPH1128HT1G FAQ
1.How can I place an order for NUPH1128HT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NUPH1128HT1G 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 NUPH1128HT1G reliable?
The price and inventory of NUPH1128HT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUPH1128HT1G is usually 5 days.
3.What payment methods are accepted for NUPH1128HT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUPH1128HT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUPH1128HT1G?
NUPH1128HT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUPH1128HT1G 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 NUPH1128HT1G?
For technical support, including NUPH1128HT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUPH1128HT1G requirements.
6.How does Aetrix verify that NUPH1128HT1G is sourced from the original manufacturer or authorized distributors?
All NUPH1128HT1G 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 NUPH1128HT1G meets industry standards.
7.What is the process for return or replacement of NUPH1128HT1G?
All NUPH1128HT1G units undergo pre-shipment inspection (PSI). If there is an issue with NUPH1128HT1G, 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 NUPH1128HT1G part is unused and in its original packaging.
Return procedure for NUPH1128HT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUPH1128HT1G Tags
-
ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
-
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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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