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onsemi NZ23C5V6ALT1G
- Part No.:
- NZ23C5V6ALT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
NZ23C5V6ALT1G.pdf
- Description:
- TVS DIODE 1VWM 8VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,035
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Product details
Overview
NZ23C5V6ALT1G from onsemi is a dual common-anode unidirectional Zener transient voltage suppressor (TVS) in SOT-23 package, designed for ESD and surge protection of two independent signal lines. It features 5.6 V nominal Zener breakdown voltage, 24 W peak pulse power (1 ms), 8.0 V maximum clamping voltage at 3.0 A peak pulse current, and Class 3B (>16 kV HBM) ESD rating - ideal for USB, keyboard, and microprocessor I/O line protection.
For engineers reviewing the NZ23C5V6ALT1G datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (3 V), low leakage (<0.1 µA @ VRWM), bidirectional configuration capability, thermal resistance (556 °C/W on FR-5), and UL 94 V-0 flammability compliance.
Technical Context
This device integrates two monolithic Zener junctions sharing a common anode (Pin 3), enabling simultaneous protection of two signal paths with minimal PCB footprint. Its unidirectional operation supports clamping to ground while maintaining low forward voltage (VF ≤ 0.9 V @ 10 mA) and tight breakdown tolerance (5.2–6.0 V).
The SOT-23 package (Case 318, Style 12) defines a fixed terminal mapping: Pins 1 and 2 are cathodes, Pin 3 is the common anode. Thermal performance is characterized for both FR-5 board (225 mW derated above 25°C) and alumina substrate (300 mW), supporting design-in across consumer and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 5.2–6.0 V @ IT = 5.0 mA - ensures reliable turn-on within ±7% of 5.6 V nominal for precise overvoltage thresholding |
| Clamping Voltage (VC) | 8.0 V max @ IPP = 3.0 A - limits transient-induced stress on downstream ICs during 1 ms surges |
| Peak Pulse Power (Ppk) | 24 W @ 1.0 ms - sustains high-energy ESD and lightning-induced transients without failure |
| Working Peak Reverse Voltage (VRWM) | 3.0 V - sets maximum continuous operating voltage before significant leakage onset |
| ESD Rating (HBM) | Class 3B (>16 kV) - exceeds IEC 61000-4-2 Level 4 requirements for system-level robustness |
| Leakage Current (IR) | <0.1 µA @ VRWM = 3.0 V - minimizes standby power loss and signal integrity impact in low-power interfaces |
| Package | SOT-23 (TO-236), 2.90 × 1.30 × 1.00 mm - enables high-density routing and automated placement in space-constrained designs |
Pinout & Package
SOT-23 package (Case 318, Style 12) with gull-wing leads; void-free thermosetting plastic case rated UL 94 V-0, Pb-free and RoHS compliant. Maximum solder temperature: 260°C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Zener Junction 1) | Connects to protected line 1; reverse-biased during overvoltage events to clamp to ground via common anode |
| Pin 2 | Cathode (Zener Junction 2) | Connects to protected line 2; operates independently but shares anode path for compact dual-line protection |
| Pin 3 | Common Anode | Must be connected to system ground; serves as shared return path for both Zener junctions |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode topology | Protects two independent signal lines (e.g., D+ and D−) in one SOT-23 footprint - reduces BOM count and layout area by 50% vs. discrete diodes |
| Configurable unidirectional/bidirectional use | Supports either two separate unidirectional clamps (Pins 1–3 and 2–3) or single bidirectional clamp (Pins 1–2) - increases design flexibility without component change |
| Low clamping voltage (8.0 V @ 3 A) | Ensures protected ICs (e.g., USB transceivers) remain below absolute maximum ratings during 1 ms transients - prevents latch-up or permanent damage |
| High ESD immunity (16 kV HBM) | Meets or exceeds IEC 61000-4-2 Level 4 for end-equipment certification - eliminates need for secondary ESD protection stages |
| Thermal robustness (RJA = 556 °C/W) | Enables stable operation up to +125°C ambient when mounted on standard FR-5 PCB - suitable for industrial and automotive cabin applications |
Applications
| USB 2.0 Data Line Protection | Keyboard/Mouse Interface Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports against ESD events during hot-plug insertion and handling. IC Role / Device Role / Timing Role: Unidirectional TVS clamp referenced to ground, placed immediately before the USB transceiver IC. Use Value: Clamps transients to ≤8.0 V while maintaining <0.1 µA leakage - preserves signal integrity and meets USB eye diagram requirements. |
Use Scenario: Safeguarding PS/2 or USB HID interface lines in peripherals such as keyboards and mice exposed to frequent human contact. IC Role / Device Role / Timing Role: Dual-line ESD suppressor with common-anode grounding, installed at connector entry point. Use Value: Delivers >16 kV HBM protection per line in 2.9 × 1.3 mm footprint - enables ultra-thin peripheral designs without sacrificing reliability. |
| Microprocessor I/O Bus Protection | Industrial Sensor Interface Protection |
|
Use Scenario: Shielding address/data/control bus lines (e.g., GPIO, SPI, I²C) of embedded microcontrollers from board-level ESD and coupling noise. IC Role / Device Role / Timing Role: Low-capacitance Zener TVS placed directly at MCU pin, with common anode tied to clean digital ground. Use Value: 5.6 V breakdown aligns with 3.3 V or 5 V logic rails; clamping occurs before internal ESD structures trigger - extends MCU lifetime. |
Use Scenario: Protecting analog or digital sensor outputs (e.g., temperature, pressure) in factory automation equipment subject to cable discharge events. IC Role / Device Role / Timing Role: Dual-channel transient suppressor on sensor harness entry, grounded to chassis or system ground. Use Value: 24 W peak power rating handles induced surges from nearby motor switching; UL 94 V-0 housing meets industrial safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SZ1.5SMC5.6A | DO-214AB package (7.1 × 6.2 mm), 1500 W peak power, 5.6 V breakdown, unidirectional single-channel | Requires two devices for dual-line protection; suited for higher-energy surges but occupies >10× PCB area | Select when surge energy exceeds 24 W or when legacy DO-214AB footprint is mandated |
| TPD2E001DRYR | 0.65 × 0.65 mm DSBGA, 2-channel ESD array, 5.5 V breakdown, 3.5 A IPP, 12 kV HBM | Lower ESD rating (12 kV vs. 16 kV), no Zener clamping - relies on snapback behavior; optimized for high-speed data lines | Select for ultra-miniature layouts where capacitance <0.8 pF is critical, e.g., HDMI or MIPI interfaces |
Compared with SZ1.5SMC5.6A and TPD2E001DRYR, the NZ23C5V6ALT1G uniquely balances dual-line protection, 16 kV HBM robustness, and SOT-23 manufacturability - making it optimal for cost-sensitive, space-constrained USB and I/O applications where moderate surge energy suffices.
Availability
NZ23C5V6ALT1G is available at Aetrix Electronics and suitable for USB interface protection, keyboard/mouse ESD hardening, and microprocessor I/O bus safeguarding requiring stable component supply and full traceability.
Supply support for NZ23C5V6ALT1G 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 manufacturer specializing in energy-efficient power, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and IoT applications.
The NZ23C5V6ALT1G belongs to onsemi's Zener TVS portfolio designed specifically for board-level ESD and transient suppression in high-density consumer and industrial electronics - emphasizing small-footprint reliability and regulatory compliance.
FAQ
What is the exact pin configuration of NZ23C5V6ALT1G?
The NZ23C5V6ALT1G uses SOT-23 package Style 12: Pin 1 is Cathode 1, Pin 2 is Cathode 2, and Pin 3 is the Common Anode. This dual-cathode/common-anode arrangement allows independent protection of two signal lines with a single ground connection. The marking "5V6" appears on the top surface, and the device is Pb-free with RoHS compliance confirmed in the datasheet.
Can NZ23C5V6ALT1G be used in bidirectional mode?
Yes, NZ23C5V6ALT1G can operate in bidirectional mode by connecting Pins 1 and 2 to the protected line and Pin 3 to ground - effectively forming a back-to-back Zener pair. However, its specified electrical parameters (e.g., VBR = 5.2–6.0 V, VC = 8.0 V) apply only to unidirectional operation per the datasheet test conditions. Bidirectional use yields symmetric clamping but with reduced precision versus dedicated bidirectional TVS devices.
What is the maximum clamping voltage of NZ23C5V6ALT1G under surge conditions?
The maximum clamping voltage (VC) of NZ23C5V6ALT1G is 8.0 V at a peak pulse current (IPP) of 3.0 A, measured using the 1.0 ms rectangular waveform defined in Figure 5 of the datasheet. This value ensures downstream components rated for ≤8.5 V absolute maximum will remain within safe operating limits during transient events.
Does NZ23C5V6ALT1G meet industrial temperature requirements?
Yes, NZ23C5V6ALT1G is rated for junction and storage temperatures from −55°C to +150°C, and its thermal resistance (RJA = 556 °C/W on FR-5 board) supports reliable operation at +125°C ambient when properly mounted. Derating curves in Figure 4 confirm usable power dissipation down to zero at 150°C, meeting extended industrial temperature grade needs.
How does NZ23C5V6ALT1G compare to single-channel Zener TVS diodes in terms of PCB area?
NZ23C5V6ALT1G occupies just 2.90 × 1.30 mm in SOT-23, protecting two lines simultaneously. Two discrete single-channel Zener TVS diodes (e.g., MMBZ5V6AL) would require ≥2 × 2.90 × 1.30 mm plus routing clearance - increasing total area by ≥2.5×. This makes NZ23C5V6ALT1G especially valuable in ultra-compact USB, sensor, and portable device designs where board space is constrained.
NZ23C5V6ALT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 1V
- Voltage - Breakdown (Min):
- 5.2V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 24W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3 (TO-236)
NZ23C5V6ALT1G FAQ
1.How can I place an order for NZ23C5V6ALT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NZ23C5V6ALT1G 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 NZ23C5V6ALT1G reliable?
The price and inventory of NZ23C5V6ALT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NZ23C5V6ALT1G is usually 5 days.
3.What payment methods are accepted for NZ23C5V6ALT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NZ23C5V6ALT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NZ23C5V6ALT1G?
NZ23C5V6ALT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NZ23C5V6ALT1G 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 NZ23C5V6ALT1G?
For technical support, including NZ23C5V6ALT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NZ23C5V6ALT1G requirements.
6.How does Aetrix verify that NZ23C5V6ALT1G is sourced from the original manufacturer or authorized distributors?
All NZ23C5V6ALT1G 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 NZ23C5V6ALT1G meets industry standards.
7.What is the process for return or replacement of NZ23C5V6ALT1G?
All NZ23C5V6ALT1G units undergo pre-shipment inspection (PSI). If there is an issue with NZ23C5V6ALT1G, 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 NZ23C5V6ALT1G part is unused and in its original packaging.
Return procedure for NZ23C5V6ALT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NZ23C5V6ALT1G Tags
-
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
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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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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