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onsemi NUP2125WTT3G
- Part No.:
- NUP2125WTT3G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
NUP2125WTT3G.pdf
- Description:
- TVS DIODE 24VWM 50VC SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,546
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Product details
Overview
NUP2125WTT3G from onsemi is a dual-line bidirectional ESD protection diode in SC-70 (SOT-323) package, designed specifically for automotive CAN and LIN bus transceivers. It provides 27 V working peak reverse voltage, 200 W peak power dissipation per line (8/20 µs), and clamps ±8 kV IEC 61000-4-2 contact ESD events to ≤42 V at 4 A TLP current.
For engineers reviewing the NUP2125WTT3G datasheet, pinout, applications, or equivalent options, this device delivers verified AEC-Q101 qualification, matched diode capacitance (<2% mismatch), low leakage (<100 nA @ 24 V), and ISO 7637-3 EFT surge immunity - critical for robust automotive network interface design.
Technical Context
The NUP2125WTT3G integrates two identical bidirectional TVS diodes in a single SC-70 package, enabling symmetrical clamping on both CAN_H and CAN_L or LIN lines. Its breakdown voltage is 27–32 V (min–max @ 1 mA), with dynamic resistance of 0.94 Ω measured via TLP.
It supports full IEC 61000-4-2 Level 4 (±30 kV air/±30 kV contact), IEC 61000-4-4 (50 A EFT), and ISO 7637-1/3 surge standards. Capacitance is 4.5–6.0 pF per line at 5 V DC and 1 MHz, with <0.26% matching between lines - essential for high-speed signal integrity in CAN-FD and LIN systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - ensures safe operation above nominal 12 V automotive supply with margin against ripple and transients |
| VBR (min) | 27 V @ 1 mA - defines precise turn-on threshold for reliable overvoltage clamping before transceiver damage |
| VC @ 4 A TLP | 42 V - clamping voltage under fast transient stress, directly limiting voltage seen by CAN/LIN IC pins |
| CJ @ 5 V / 1 MHz | 4.5–6.0 pF per line - low, tightly matched capacitance preserves signal rise/fall times in >500 kbps CAN-FD |
| IR @ VRWM | <100 nA - negligible leakage avoids bias shift or false triggering in high-impedance LIN receiver inputs |
| PPK per line | 200 W (8/20 µs) - sustains high-energy surges without degradation, validated per ISO 7637-3 repetitive EFT |
| ESD Rating | ±30 kV IEC 61000-4-2 contact - exceeds automotive OEM requirements for system-level ESD immunity |
Pinout & Package
SC-70 (SOT-323) package, 3-pin, Pb-free, moisture sensitivity level 1 (MSL-1). Compact 2.2 mm × 2.2 mm footprint with 0.65 mm pitch enables dense placement near connectors or transceivers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Line 1) | Connects to protected signal line (e.g., CAN_H); forms one half of bidirectional clamp path |
| Pin 2 | Cathode (Line 2) | Connects to second protected signal line (e.g., CAN_L or LIN); matched capacitance ensures balanced response |
| Pin 3 | Anode (Common) | Shared ground reference; enables compact dual-line protection without discrete grounding paths |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Protects both positive and negative transients on CAN_H/CAN_L or LIN without polarity constraints |
| Diode capacitance matching | <0.26% difference between lines - prevents skew and maintains differential timing integrity in CAN-FD |
| AEC-Q101 qualification | Validated for automotive temperature range (−55 °C to +175 °C junction) and lifetime reliability |
| IEC/ISO-compliant surge handling | Meets IEC 61000-4-2/4-4/4-5 and ISO 7637-1/3 - eliminates need for external filtering in Tier-1 designs |
| Low insertion loss | −8.7 dB @ 1 GHz - minimal RF attenuation preserves EMC performance in high-frequency vehicle networks |
Applications
| Automotive CAN Bus Protection | Automotive LIN Bus Protection |
|---|---|
Use Scenario: Protecting high-speed CAN transceivers (e.g., TJA1042, SN65HVD256) in engine control units against ESD during service and ISO 7637-3 EFT pulses during battery load dump. IC Role / Device Role: Dual-line bidirectional TVS array placed between connector and transceiver, clamping transients before they reach IC pins. Use Value: Enables compliance with OEM ESD test plans (e.g., GMW3172, Ford ES-XW7T-1A278-AC) without adding board area or BOM cost. |
Use Scenario: Safeguarding LIN slave nodes (e.g., window lift modules, seat position sensors) from cable coupling noise and human-body ESD during assembly or field maintenance. IC Role / Device Role: Single-device dual-line protector for LIN bus, replacing discrete diodes while maintaining <6 pF per line. Use Value: Reduces component count by 50% vs. discrete solutions and ensures <100 nA leakage does not disrupt LIN master pull-up bias. |
| Fault-Tolerant CAN Networks | CAN-FD Data Link Layer Protection |
Use Scenario: Securing fault-tolerant CAN physical layer (SAE J2284-4) in body control modules where bus must remain operational after single-wire short-to-battery or ground. IC Role / Device Role: Bidirectional clamp on both CAN_H and CAN_L lines, referenced to common anode, preserving differential signaling integrity. Use Value: Maintains <2% capacitance match to prevent common-mode imbalance that could trigger fault detection falsely. |
Use Scenario: Protecting 2 Mbps CAN-FD communication links in ADAS domain controllers where signal edge fidelity is critical for error-free arbitration and data phase timing. IC Role / Device Role: Low-capacitance ESD array placed immediately at connector entry point to minimize stub length and preserve impedance continuity. Use Value: 4.5–6.0 pF capacitance and −8.7 dB insertion loss @ 1 GHz ensure <5% signal rise-time degradation at 2 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 5.5 V VRWM, 12 pF typical capacitance - higher capacitance, lower voltage rating | Targeted at USB/low-voltage digital interfaces, not automotive bus-rated | Select only for non-automotive 3.3 V systems requiring ultra-low clamping; not suitable for CAN/LIN 12 V bus |
| ESDA6V1SC6 | Dual-line, 6.1 V VRWM, 30 pF capacitance - optimized for 5 V logic, not 24 V bus systems | Designed for industrial I/O and sensor interfaces, lacks AEC-Q101 and ISO 7637 validation | Use only in non-automotive 5 V applications; insufficient VRWM and surge rating for CAN/LIN bus protection |
Compared with TPD2E001DRYR and ESDA6V1SC6, the NUP2125WTT3G uniquely combines 24 V VRWM, AEC-Q101 qualification, and sub-6 pF matched capacitance - making it the only option qualified for production automotive CAN and LIN bus protection without derating or redesign.
Availability
NUP2125WTT3G is available at Aetrix Electronics and suitable for automotive electronics, CAN/LIN network modules, and ESD-critical industrial control systems requiring stable component supply across extended product lifecycles.
Supply support for NUP2125WTT3G 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 NUP2125WTT3G belongs to onsemi's automotive-grade ESD protection portfolio, engineered specifically to meet stringent ISO 10605, IEC 61000-4-2, and AEC-Q101 requirements for CAN and LIN bus interfaces.
FAQ
What is the maximum clamping voltage of the NUP2125WTT3G under IEC 61000-4-2 ±8 kV contact discharge?
The NUP2125WTT3G clamps to ≤42 V when subjected to IEC 61000-4-2 ±8 kV contact discharge, measured using TLP at 4 A pulse current. This value is confirmed in the Electrical Characteristics table (page 2 of the datasheet) and ensures safe voltage levels for CAN transceivers rated to 40 V absolute maximum. The NUP2125WTT3G achieves this with low dynamic resistance (0.94 Ω) and matched diode structure.
Is the NUP2125WTT3G qualified for automotive use per AEC-Q101?
Yes, the NUP2125WTT3G carries the SZ prefix (SZNUP2125WTT3G*), confirming its AEC-Q101 qualification and PPAP capability. It operates across the full automotive junction temperature range (−55 °C to +175 °C) and has passed stress tests including HTGB, HTRB, and temperature cycling. The NUP2125WTT3G is explicitly listed in the datasheet as "AEC-Q101 Qualified and PPAP Capable" on page 1.
How does the diode capacitance matching specification benefit CAN-FD designs?
The NUP2125WTT3G guarantees ≤0.26% capacitance mismatch between its two protection lines (measured at VR = 0 V, 5 MHz), which minimizes differential skew and preserves signal symmetry in CAN-FD's high-speed data phase. This tight matching prevents duty-cycle distortion and timing jitter that could cause bit errors above 2 Mbps - a key requirement validated in the datasheet's Electrical Characteristics table.
What is the working peak reverse voltage (VRWM) rating of the NUP2125WTT3G and why is it important?
The NUP2125WTT3G has a VRWM of 24 V, meaning it remains non-conductive up to this DC or continuous peak voltage - well above nominal 12 V automotive bus levels and accommodating load-dump transients. This rating ensures no leakage-induced bias shift in LIN receivers or false triggering in CAN transceivers. The NUP2125WTT3G's 24 V VRWM is specified in the Maximum Ratings table and confirmed in the Electrical Characteristics section.
Can the NUP2125WTT3G be used for both CAN and LIN bus protection in the same design?
Yes, the NUP2125WTT3G is explicitly designed for dual-use in both CAN and LIN applications, as stated in the datasheet's Applications section and Feature list. Its 24 V VRWM, low leakage (<100 nA), and matched 4.5–6.0 pF capacitance suit LIN's 12 V bias and CAN's differential signaling. The NUP2125WTT3G has been validated per ISO 7637-3 for LIN and IEC 61000-4-2 for CAN, supporting coexistence in multi-protocol ECUs.
NUP2125WTT3G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Min)
- Voltage - Breakdown (Min):
- 26.2V
- Voltage - Clamping (Max) @ Ipp:
- 50V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 10pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3 (SOT323)
NUP2125WTT3G FAQ
1.How can I place an order for NUP2125WTT3G through Aetrix?
Please submit a Request for Quotation (RFQ) for NUP2125WTT3G 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 NUP2125WTT3G reliable?
The price and inventory of NUP2125WTT3G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUP2125WTT3G is usually 5 days.
3.What payment methods are accepted for NUP2125WTT3G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUP2125WTT3G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUP2125WTT3G?
NUP2125WTT3G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUP2125WTT3G 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 NUP2125WTT3G?
For technical support, including NUP2125WTT3G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUP2125WTT3G requirements.
6.How does Aetrix verify that NUP2125WTT3G is sourced from the original manufacturer or authorized distributors?
All NUP2125WTT3G 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 NUP2125WTT3G meets industry standards.
7.What is the process for return or replacement of NUP2125WTT3G?
All NUP2125WTT3G units undergo pre-shipment inspection (PSI). If there is an issue with NUP2125WTT3G, 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 NUP2125WTT3G part is unused and in its original packaging.
Return procedure for NUP2125WTT3G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUP2125WTT3G 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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