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onsemi NUP2125WTT1G
- Part No.:
- NUP2125WTT1G
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
NUP2125WTT1G.pdf
- Description:
- TVS DIODE 24VWM 50VC SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:13,964
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Product details
Overview
NUP2125WTT1G from onsemi is a dual-line bidirectional ESD protection diode array in SC-70 (SOT-323) package, rated for 24 V reverse working voltage, 27 V breakdown voltage at 1 mA, and 200 W peak pulse power per line. It provides IEC 61000-4-2 Level 4 ESD protection (±30 kV contact/air), ISO 7637-3 EFT immunity (50 A, 5/50 ns), and clamps to ≤44.0 V at 13 A (8/20 µs) for CAN/LIN bus protection.
For engineers reviewing the NUP2125WTT1G datasheet, pinout, applications, or equivalent options, this device serves as a compact, AEC-Q101-qualified solution for automotive transceiver interface protection where low capacitance (≤10 pF @ 0 V), matched diode capacitance (<2%), and sub-100 nA leakage are critical design requirements.
Technical Context
The NUP2125WTT1G implements a dual-channel bidirectional TVS architecture using four Zener diodes configured as two back-to-back pairs - one pair per data line - enabling symmetrical clamping for both positive and negative transients. Its dynamic resistance is 0.94 Ω (TLP), supporting fast response to ESD events with minimal voltage overshoot.
It meets stringent automotive surge standards including ISO 7637-1 Pulse 2 (8.0 A, 1/50 µs) and ISO 7637-3 repetitive EFT (50 A, 5/50 ns), while maintaining insertion loss <1.7 dB at 5 GHz and return loss >1.0 dB - key for high-speed CAN-FD signal integrity preservation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Maximum continuous operating voltage before clamping begins; matches CAN bus DC bias levels. |
| VBR (IT = 1 mA) | 27–32 V - Breakdown threshold ensures reliable turn-on during transients without false triggering. |
| VC @ IPP = 13 A | ≤44.0 V - Clamping voltage limits stress on downstream CAN/LIN transceivers during 8/20 µs surges. |
| CJ @ VR = 0 V, 1 MHz | 7.0–10 pF - Low, tightly matched line-to-ground capacitance preserves signal edge integrity up to 5 GHz. |
| IR @ VRWM | ≤100 nA - Negligible leakage avoids DC loading of bus lines and maintains idle-state voltage stability. |
| PPK per line | 200 W - Sustains high-energy ESD/EFT pulses without degradation across automotive temperature range. |
| IEC 61000-4-2 | ±30 kV contact/air - Meets highest system-level ESD immunity requirement for automotive ECUs. |
Pinout & Package
Package: SC-70 (SOT-323), 3-pin surface-mount, Pb-free, moisture-sensitive level 1 (MSL1). Dimensions per case outline 419; thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (Line 1) | Connects to CAN_H or LIN bus line 1; forms cathode of first bidirectional clamp pair. |
| Pin 2 | Anode (Common) | Shared anode node tied to ground; enables dual-line bidirectional clamping via common reference. |
| Pin 3 | Cathode (Line 2) | Connects to CAN_L or second LIN line; completes second bidirectional clamp path. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional dual-line protection | Single SC-70 package protects two independent data lines (e.g., CAN_H/CAN_L) with matched clamping behavior. |
| Diode capacitance matching | ≤2% difference between Line 1 and Line 2 capacitance ensures balanced signal propagation and skew control. |
| AEC-Q101 qualification | Validated for automotive underhood environments: −55 °C to +175 °C junction temperature operation. |
| Low insertion loss | ≤1.7 dB at 5 GHz minimizes high-frequency attenuation critical for CAN-FD bit rates up to 5 Mbps. |
| ISO 7637-3 compliance | Withstands 50 A repetitive EFT pulses (5/50 ns) - essential for robustness in 12 V vehicle power networks. |
Applications
| Automotive CAN Bus Protection | Automotive LIN Bus Protection |
|---|---|
Use Scenario: Protecting high-speed CAN transceivers in engine control units against ESD discharge from harness connectors and board-level handling. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at CAN_H/CAN_L input pins of transceiver ICs. Use Value: Limits clamping voltage to ≤44.0 V during 13 A surges, preventing latch-up or damage to transceiver I/O cells while preserving signal integrity via 7–10 pF capacitance. | Use Scenario: Securing single-wire LIN communication nodes (e.g., door modules, sensors) from ESD events induced by human contact or cable coupling. IC Role / Device Role / Timing Role: Dual-line ESD clamp connected between LIN bus and ground, with matched capacitance ensuring <1% timing skew across bus segments. Use Value: Enables reliable LIN operation at 19.2 kbps with ≤100 nA leakage, avoiding false wake-up or bus contention caused by leakage-induced voltage drift. |
| Fault-Tolerant CAN Networks | CAN-FD Interface Protection |
Use Scenario: Safeguarding fault-tolerant CAN nodes in chassis and body control modules exposed to battery dump and load-switch transients. IC Role / Device Role / Timing Role: Surge protector meeting ISO 7637-1 Pulse 2 (8.0 A, 1/50 µs) and ISO 7637-3 EFT (50 A, 5/50 ns) requirements. Use Value: Maintains functional safety integrity by clamping transients below transceiver absolute maximum ratings without degrading common-mode rejection. | Use Scenario: Protecting CAN-FD physical layer interfaces operating at 2–5 Mbps in ADAS domain controllers and gateway ECUs. IC Role / Device Role / Timing Role: High-frequency optimized ESD array with <1.7 dB insertion loss at 5 GHz and matched capacitance minimizing signal distortion. Use Value: Preserves eye diagram margin and jitter performance at 5 Mbps, enabling full CAN-FD bandwidth utilization without re-timing or equalization. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESDA6V1SC6 | Single-line, 6.1 V VRWM; lower clamping (12 V @ 1 A); higher capacitance (15 pF). | Suitable for low-voltage logic I/O, not automotive bus voltage levels. | Select only for non-automotive 3.3 V/5 V interfaces requiring tighter clamping. |
| TPD2E001DRYR | Dual-line, 5.5 V VRWM; 12 pF capacitance; no ISO 7637-3 rating. | Targeted at USB/USB-C port protection, not CAN/LIN bus systems. | Use only for consumer electronics with lower voltage rails and less stringent automotive surge requirements. |
Compared with ESDA6V1SC6 and TPD2E001DRYR, the NUP2125WTT1G uniquely combines 24 V VRWM, AEC-Q101 qualification, ISO 7637-3 compliance, and matched low capacitance - making it the only option validated for dual-line automotive serial bus protection without compromising signal fidelity or reliability.
Availability
NUP2125WTT1G is available at Aetrix Electronics and suitable for automotive CAN/LIN bus protection, fault-tolerant network interfaces, and CAN-FD physical layer designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for NUP2125WTT1G 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 NUP2125WTT1G belongs to onsemi's automotive-grade ESD protection portfolio, engineered specifically for robust transient suppression in CAN, LIN, and other automotive serial bus interfaces under harsh electrical environments.
FAQ
What is the maximum operating temperature for the NUP2125WTT1G?
The NUP2125WTT1G has a junction temperature range of −55 °C to +175 °C, validated per AEC-Q101 stress testing. This allows deployment in under-hood automotive locations such as engine control modules and transmission control units where ambient temperatures exceed 125 °C. The NUP2125WTT1G maintains specified clamping performance and leakage current (<100 nA) across this full range.
Does the NUP2125WTT1G support CAN-FD data rates up to 5 Mbps?
Yes, the NUP2125WTT1G supports CAN-FD operation at 5 Mbps due to its low and matched capacitance (7.0–10 pF @ 0 V), insertion loss of ≤1.7 dB at 5 GHz, and minimal signal skew (<2% capacitance mismatch). These characteristics preserve signal integrity and eye diagram margins required for reliable 5 Mbps bit error rate performance in gateway and ADAS applications.
Is the NUP2125WTT1G pin-compatible with other SC-70 ESD diodes?
No - the NUP2125WTT1G uses a unique 3-pin SC-70 configuration with Pin 1 and Pin 3 as cathodes and Pin 2 as the common anode. This differs from standard single-diode SC-70 packages (e.g., SMBJ, SMAJ) and other dual-line arrays with different pin assignments. PCB layout must follow the NUP2125WTT1G-specific pinout shown in the datasheet marking diagram.
What ESD test standards does the NUP2125WTT1G meet?
The NUP2125WTT1G meets IEC 61000-4-2 Level 4 (±30 kV contact/air), IEC 61000-4-4 (50 A EFT, 5/50 ns), IEC 61000-4-5 (3.0 A lightning surge, 8/20 µs), and ISO 7637-1 (Pulse 2, 8.0 A, 1/50 µs) and ISO 7637-3 (repetitive EFT, 50 A, 5/50 ns). All tests are performed per the conditions specified in the official NUP2125/D datasheet Rev. 9.
How does the NUP2125WTT1G achieve matched capacitance between lines?
The NUP2125WTT1G achieves ≤2% diode capacitance matching (C) by monolithic integration of two identical Zener structures within a single die, fabricated using matched process steps and symmetric layout. This matching is measured at VR = 0 V, 5 MHz per the datasheet, ensuring consistent signal propagation delay and skew control across CAN_H and CAN_L lines in the NUP2125WTT1G.
NUP2125WTT1G 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)
NUP2125WTT1G FAQ
1.How can I place an order for NUP2125WTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for NUP2125WTT1G 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 NUP2125WTT1G reliable?
The price and inventory of NUP2125WTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NUP2125WTT1G is usually 5 days.
3.What payment methods are accepted for NUP2125WTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NUP2125WTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NUP2125WTT1G?
NUP2125WTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NUP2125WTT1G 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 NUP2125WTT1G?
For technical support, including NUP2125WTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NUP2125WTT1G requirements.
6.How does Aetrix verify that NUP2125WTT1G is sourced from the original manufacturer or authorized distributors?
All NUP2125WTT1G 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 NUP2125WTT1G meets industry standards.
7.What is the process for return or replacement of NUP2125WTT1G?
All NUP2125WTT1G units undergo pre-shipment inspection (PSI). If there is an issue with NUP2125WTT1G, 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 NUP2125WTT1G part is unused and in its original packaging.
Return procedure for NUP2125WTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NUP2125WTT1G 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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