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onsemi NUP4201DR2G
- Part No.:
- NUP4201DR2G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
NUP4201DR2G.pdf
- Description:
- TVS DIODE 5VWM 25VC 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,164
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Product details
Overview
NUP4201DR2G from onsemi is a unidirectional low-capacitance ESD protection diode array in SO-8 package, designed to protect four high-speed data lines (pins 1, 4, 6, 7) against IEC 61000-4-2 (15 kV air/8 kV contact), IEC 61000-4-4 (40 A EFT), and IEC 61000-4-5 (25 A lightning) transients. It features 5.0–10.0 pF inter-I/O capacitance, 6.0 V breakdown voltage, and clamps to ≤9.8 V at 1 A pulse.
For engineers reviewing the NUP4201DR2G datasheet, pinout, applications, or equivalent options, this device supports USB 2.0, Ethernet 10/100, T1/E1 interfaces, and microcontroller I/O protection where low signal distortion and sub-10 pF line-to-line capacitance are critical.
Technical Context
The NUP4201DR2G integrates four steering diodes and one common-cathode surge protection diode in a single SO-8 package. Its unidirectional configuration ties pins 2 and 3 to VCC, enabling clamping to VCC + VF for positive transients and to ground via the surge diode for negative transients.
It operates with a working peak reverse voltage of 5.0 V, 6.0 V minimum breakdown at 1 mA, and delivers 500 W peak pulse power (8 × 20 µs). The internal structure allows flexible reference options - VCC, isolated bias resistor, or internal surge diode - without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | 15 kV air, 8 kV contact - meets industrial and USB port-level ESD immunity requirements |
| Clamping Voltage @ 1 A | ≤9.8 V - ensures protected ICs see minimal overvoltage during low-energy ESD events |
| Inter-I/O Capacitance | 2.5–5.0 pF - preserves signal integrity on USB 2.0 and 100 Mbps Ethernet differential pairs |
| Breakdown Voltage (VBR) | 6.0 V min @ 1 mA - provides margin above 5 V logic rails while avoiding false triggering |
| Peak Pulse Power | 500 W (8 × 20 µs) - handles lightning-surge energy without thermal failure |
| Reverse Leakage @ 5 V | ≤10 nA - negligible DC loading on high-impedance microcontroller inputs |
| Package | SO-8 (Case 751-07) - standard surface-mount footprint compatible with automated assembly |
Pinout & Package
SO-8 plastic package (Case 751-07), 4.9 mm × 3.9 mm body, 1.27 mm pitch, 1.75 mm max height. Pin 1 marked by notch or dot; lead finish Pb-free per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 6, 7 | I/O Line | Protected data lines - each connects to one high-speed interface trace (e.g., USB D+, D−, TX+, RX−) |
| 2, 3 | VCC Reference Input | Bias point for steering diodes; must connect directly to power rail or via 10 kΩ resistor for isolation |
| 5, 8 | Ground Reference | Common cathode connection for surge diode; requires low-inductance PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel ESD protection | Single SO-8 package protects four independent high-speed lines - reduces board area vs. discrete diodes |
| Low inter-I/O capacitance | 2.5–5.0 pF enables use on USB 2.0 full-speed (12 Mbps) and 100BASE-TX Ethernet without signal degradation |
| Integrated VCC-referenced clamping | Steering diodes forward-bias to VCC + 0.7 V during positive transients - avoids rail collapse seen with ground-only clamping |
| Configurable reference topology | Supports three modes: direct VCC tie, 10 kΩ bias resistor, or internal surge diode as reference - adapts to system power architecture |
| UL 94 V-0 flammability rating | Meets safety standards for end equipment requiring flame-retardant packaging in consumer and telecom applications |
Applications
| USB 2.0 Port Protection | Ethernet 10/100 Interface |
|---|---|
|
Use Scenario: Protecting upstream/downstream USB ports on host controllers and peripheral devices from human-body-model ESD events. IC Role / Device Role / Timing Role: ESD transient suppressor placed between USB connector and PHY, clamping D+ and D− lines to VBUS and GND. Use Value: Maintains <5 pF line-to-line capacitance to preserve USB 2.0 eye diagram integrity while meeting IEC 61000-4-2 Level 4 (8 kV contact). |
Use Scenario: Shielding Ethernet PHY differential pairs (TX+/TX−, RX+/RX−) from ESD and lightning-induced surges in LAN switches and routers. IC Role / Device Role / Timing Role: Four-channel bidirectional clamp referenced to VCC and GND, placed before magnetics or after RJ45 connector. Use Value: Delivers ≤9.8 V clamping at 1 A and 500 W peak power handling - prevents PHY latch-up without degrading 100 Mbps signal rise time. |
| T1/E1 Line Interface | Microcontroller I/O Protection |
|
Use Scenario: Safeguarding T1/E1 transceiver pins (RTIP, RRING, TTIP, TRING) in telecom base stations and access equipment. IC Role / Device Role / Timing Role: Unidirectional ESD array referenced to local VCC, routing transients from line drivers/receivers to power rail and ground. Use Value: 6.0 V VBR aligns with ±5 V transceiver supply margins; 25 A IEC 61000-4-5 rating withstands induced surges on long copper loops. |
Use Scenario: Hardening GPIO, UART, SPI, and I²C pins of embedded microcontrollers against accidental ESD during handling or field operation. IC Role / Device Role / Timing Role: Low-leakage (<10 nA) clamp protecting high-impedance inputs without affecting pull-up/pull-down bias networks. Use Value: Sub-10 pF capacitance avoids timing skew on 10 MHz+ digital buses; 8 kV contact rating exceeds IEC 61000-4-2 Class B immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E05U06DQAR | Lower capacitance (0.5 pF typical), dual-directional, 5.5 V VRWM, SOT-23-6 package | Optimized for ultra-high-speed interfaces (USB 3.0, HDMI); not suitable for 4-line simultaneous protection | Select when protecting two differential pairs with minimal capacitance; not a drop-in replacement due to pin count and channel count mismatch |
| SZ1.5SMC12AT3G | Unidirectional TVS, 12 V VBR, 1500 W peak power, DO-214AB package | Higher clamping (≤19.9 V @ 100 A), intended for power-rail protection - lacks integrated multi-line steering | Use only for single-line or power-rail clamping; cannot replace NUP4201DR2G's 4-channel I/O protection function |
Compared with TPD4E05U06DQAR and SZ1.5SMC12AT3G, the NUP4201DR2G uniquely combines four-channel I/O protection, VCC-referenced clamping, and 2.5–5.0 pF inter-line capacitance in a single SO-8 package - making it irreplaceable for cost-sensitive, space-constrained USB/Ethernet port designs requiring coordinated multi-line transient suppression.
Availability
NUP4201DR2G is available at Aetrix Electronics and suitable for USB 2.0 port protection, Ethernet 10/100 interface hardening, and microcontroller I/O safeguarding requiring stable component supply across production lifecycles.
Supply support for NUP4201DR2G 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 specializing in energy-efficient power management, analog, sensor, and ESD protection solutions for automotive, industrial, and communications markets.
The NUP4201DR2G belongs to onsemi's ESD protection diode array product line, engineered specifically for high-speed data interface robustness - balancing low capacitance, fast response, and multi-line integration to replace discrete diode networks in USB, Ethernet, and telecom applications.
FAQ
What is the primary circuit role of the NUP4201DR2G?
The NUP4201DR2G serves as a four-channel unidirectional ESD protection diode array. Its core function is to steer transient currents from high-speed data lines (pins 1, 4, 6, 7) to either VCC (via internal steering diodes) or ground (via common-cathode surge diode at pins 5/8), thereby limiting voltage excursions on protected ICs. This architecture is confirmed in the device's schematic (Figure 10) and application notes for USB and Ethernet protection.
Does the NUP4201DR2G support bidirectional ESD protection?
No, the NUP4201DR2G is explicitly unidirectional, as stated in its Electrical Characteristics table and Figure 10 equivalent circuit. It clamps positive transients to VCC + VF and negative transients to ground. For bidirectional protection, onsemi offers alternatives like the NUP2114, but the NUP4201DR2G itself does not provide symmetrical clamping above and below ground.
What is the maximum allowable trace inductance when using the NUP4201DR2G?
The NUP4201DR2G datasheet emphasizes minimizing PCB trace inductance - especially for pins 5 and 8 (ground) and pins 2/3 (VCC) - because parasitic inductance directly increases clamping voltage during fast ESD events (VC = VF + L·di/dt). While no absolute maximum value is specified, layout guidelines require direct connection to ground planes and shortest possible traces, consistent with industry best practices for sub-100 ns rise-time transients.
Can the NUP4201DR2G be used on 3.3 V systems?
Yes, the NUP4201DR2G is compatible with 3.3 V systems. Its 6.0 V minimum breakdown voltage provides sufficient margin above 3.3 V VCC, and its 5.0 V working peak reverse voltage ensures reliable blocking under normal operation. Application diagrams (Figures 5–7) confirm use with VCC rails ranging from 3.3 V to 5 V, and its clamping behavior (VC ≤9.8 V @ 1 A) remains safe for 3.3 V logic interfaces.
Is the NUP4201DR2G RoHS-compliant and halogen-free?
Yes, the NUP4201DR2G is RoHS-compliant and halogen-free. The datasheet states "Pb-Free Package is Available" and marks the "G" suffix as indicating Pb-free construction. Its UL 94 V-0 flammability rating further confirms compliance with halogen-free material requirements per IEC 61249-2-21, and onsemi's official product change notices verify full RoHS 2 (2011/65/EU) conformance.
NUP4201DR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 25V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
NUP4201DR2G FAQ
1.How can I place an order for NUP4201DR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for NUP4201DR2G 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 NUP4201DR2G reliable?
The price and inventory of NUP4201DR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUP4201DR2G is usually 5 days.
3.What payment methods are accepted for NUP4201DR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUP4201DR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUP4201DR2G?
NUP4201DR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUP4201DR2G 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 NUP4201DR2G?
For technical support, including NUP4201DR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUP4201DR2G requirements.
6.How does Aetrix verify that NUP4201DR2G is sourced from the original manufacturer or authorized distributors?
All NUP4201DR2G 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 NUP4201DR2G meets industry standards.
7.What is the process for return or replacement of NUP4201DR2G?
All NUP4201DR2G units undergo pre-shipment inspection (PSI). If there is an issue with NUP4201DR2G, 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 NUP4201DR2G part is unused and in its original packaging.
Return procedure for NUP4201DR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUP4201DR2G 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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