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Nexperia USA Inc. PESD24VU1UT,215
- Part No.:
- PESD24VU1UT,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD24VU1UT,215.pdf
- Description:
- TVS DIODE 24VWM 76VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,231
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Product details
Overview
PESD24VU1UT,215 from Nexperia is a unidirectional ultra-low-capacitance ESD protection diode in SOT23 (TO-236AB) package, designed to safeguard high-speed data lines against IEC 61000-4-2 level 4 ESD (23 kV contact), with 24 V reverse stand-off voltage, 0.6 pF typical capacitance, 76 V clamping voltage at 3 A surge, and 200 W peak pulse power. It is deployed in Ethernet PHY interfaces and FireWire ports where signal integrity and transient immunity are critical.
For engineers reviewing the PESD24VU1UT,215 datasheet, PESD24VU1UT,215 pinout, PESD24VU1UT,215 application, or PESD24VU1UT,215 equivalent, key selection criteria include low capacitance for >100 Mbps data rates, precise clamping behavior under 8/20 µs surges, cathode-anode terminal configuration for unidirectional line protection, and compatibility with SOT23 PCB footprints and automated assembly.
Technical Context
This device implements a dual-diode architecture: one ESD protection diode (pin 1–3) and one cathode-compensation diode (pin 2–3), enabling effective differential-mode capacitance as low as 0.6 pF at 1 MHz and 0 V bias. Its unidirectional topology provides asymmetric conduction-low leakage (<1 nA at 24 V, 25 °C) in reverse stand-off and sharp turn-on above 25.4 V breakdown.
The internal structure supports common-mode and differential-mode protection when two units are configured anti-parallel. It meets IEC 61000-4-2 (±23 kV contact), IEC 61000-4-5 (8/20 µs, 3 A peak), and MIL-STD-883 HBM (10 kV), with thermal limits up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 24 V - defines maximum continuous operating voltage before leakage rises; sets safe margin below system supply rails in 24 V industrial interfaces. |
| Diode Capacitance (Cd) | 0.6 pF (typ.) at 1 MHz, 0 V - enables minimal signal distortion on USB 2.0, FireWire, or 100BASE-TX lines without degrading eye diagram integrity. |
| Clamping Voltage (VCL) | 76 V at IPP = 3 A (8/20 µs) - ensures protected ICs (e.g., Ethernet transceivers) experience sub-80 V stress during worst-case surge events. |
| ESD Withstand (IEC 61000-4-2) | 23 kV contact discharge - exceeds level 4 requirement, providing robust handling tolerance during board-level assembly and end-user operation. |
| Peak Pulse Power (PPP) | 200 W (8/20 µs) - sustains transient energy from lightning-induced surges in LAN equipment without thermal runaway. |
| Breakdown Voltage (VBR) | 25.4–30.3 V at 5 mA - guarantees reliable turn-on margin above VRWM to avoid false triggering while maintaining fast response. |
| Differential Resistance (rdif) | 300 Ω at 1 mA - contributes to predictable voltage drop during low-current ESD events, supporting accurate clamping modeling. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-pin, 1.3 mm × 2.9 mm footprint, 1.1 mm height, gull-wing leads compatible with standard reflow profiles and AOI inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode of main ESD diode | Connected to protected data line; conducts surge current to ground via pin 3 during positive transients. |
| 2 | Cathode of compensation diode | Used in anti-parallel configurations for differential-mode protection (e.g., Ethernet pairs); not connected in single-line unidirectional use. |
| 3 | Common anode | Ground reference node; ties both diodes' anodes together; must be routed with low-inductance path to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance architecture | 0.6 pF typ. enables <1% signal attenuation on 100 MHz+ digital lines, preserving rise time and jitter performance. |
| Asymmetric unidirectional clamping | 24 V VRWM + 25.4 V VBR ensures no conduction during normal 24 V rail operation while triggering within 1.4 V overvoltage. |
| Integrated dual-diode topology | Pins 1–3 and 2–3 form matched pair for balanced differential protection without external matching components. |
| High-energy surge resilience | 200 W PPP at 8/20 µs allows survival of induced surges from nearby AC mains switching or relay bounce in industrial gateways. |
| Low leakage at elevated temperature | <1 nA IR at 24 V, 25 °C and <10 nA at 150 °C ensures stable protection margin across automotive and industrial ambient ranges. |
Applications
| 10/100/1000 Ethernet PHY Interface | FireWire (IEEE 1394) Port Protection |
|---|---|
|
Use Scenario: Protecting RJ-45 magnetics secondary side and PHY IC pins from ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between differential pair and ground, with pin 3 tied to chassis ground near connector. Use Value: 0.6 pF capacitance avoids skew between TX+/TX−, maintaining IEEE 802.3 compliance for 1000BASE-T timing budgets. |
Use Scenario: Safeguarding FireWire 400/800 transceiver I/O pins against user-handling ESD in audio/video editing workstations. IC Role / Device Role / Timing Role: Single-line protection per data lane (TPA/TPB), leveraging low VCL (40 V @ 1 A) to stay below FireWire receiver absolute max rating. Use Value: 23 kV contact ESD rating exceeds IEC 61000-4-2 level 4, eliminating field failures from repeated hot-plug cycles. |
| Industrial Control Network Node | High-Speed USB 2.0 Peripheral Port |
|
Use Scenario: Securing RS-485 or CAN FD transceiver data lines in factory automation PLCs exposed to electrostatic build-up on metal enclosures. IC Role / Device Role / Timing Role: Standoff-rated clamp (24 V VRWM) aligned with 24 V control bus logic levels; pins 1 and 3 routed directly to transceiver I/O and local ground pour. Use Value: 200 W surge capability handles inductive kickback from solenoid drivers sharing same chassis ground, preventing latch-up in transceivers. |
Use Scenario: Adding board-level ESD immunity to USB 2.0 upstream ports on embedded host controllers used in medical imaging devices. IC Role / Device Role / Timing Role: Low-capacitance shunt on D+ and D− lines, with pin 2 left unconnected in single-diode mode to preserve 480 Mbps eye opening. Use Value: Sub-1 pF Cd prevents signal degradation beyond USB 2.0 eye mask limits, verified per USB-IF compliance test plan. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G | 3.3 V VRWM, 0.5 pF Cd, 12 V VCL @ 1 A - lower clamping but insufficient for 24 V systems. | Designed for 3.3 V logic I/O; incompatible with 24 V industrial signal lines due to premature conduction. | Select only for sub-5 V applications; verify VRWM ≥ 1.2× nominal line voltage. |
| SLVU2.8-4 | 2.8 V VRWM, 0.5 pF Cd, 14 V VCL @ 1 A - optimized for USB 2.0, lacks 24 V standoff and 200 W surge rating. | Targeted at consumer USB ports; not rated for IEC 61000-4-5 surge or extended industrial temperature range. | Prefer for cost-sensitive 5 V embedded designs; avoid where 24 V line protection or 200 W surge is required. |
Compared with ESD5Z3.3T5G and SLVU2.8-4, PESD24VU1UT,215 uniquely delivers 24 V standoff, 200 W surge resilience, and validated 23 kV ESD immunity - making it the only suitable choice for industrial Ethernet, FireWire, and 24 V control network interfaces requiring simultaneous high-voltage margin and ultra-low capacitance.
Availability
PESD24VU1UT,215 is available at Aetrix Electronics and suitable for industrial Ethernet gateways, FireWire audio interfaces, and 24 V control network nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant SOT23 packaging.
Supply support for PESD24VU1UT,215 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
Nexperia is a global semiconductor expert focused on essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and computing markets.
The PESDxU1UT series targets high-speed interface protection, engineered specifically for ESD and surge resilience in bandwidth-critical applications like Ethernet, FireWire, and USB - balancing ultra-low capacitance with robust transient suppression.
FAQ
Can PESD24VU1UT,215 be used for bidirectional line protection?
No - it is a unidirectional device with cathode-anode polarity (pins 1/2 to 3). For bidirectional protection, two units must be connected in anti-parallel: pin 1 of Device A to pin 2 of Device B, and both pin 3s to ground. This configuration achieves symmetrical clamping without compromising capacitance.
What is the recommended PCB layout for optimal ESD performance?
Place PESD24VU1UT,215 within 2 mm of the protected connector, route pins 1 and 2 directly to the data line with minimum trace length, connect pin 3 to a solid ground plane using multiple vias, and avoid routing unprotected signals parallel to protected traces to prevent coupling.
Does PESD24VU1UT,215 meet IEC 61000-4-5 surge requirements?
Yes - it is rated for 200 W peak pulse power under IEC 61000-4-5 8/20 µs waveform, with 3 A maximum peak pulse current. This satisfies level 3 (1 kV line-to-ground) and level 4 (2 kV line-to-ground) surge immunity for industrial equipment per EN 61000-4-5.
How does the dual-diode structure reduce effective capacitance?
The internal pairing of a main ESD diode (pin 1–3) and a compensation diode (pin 2–3) creates opposing electric fields that cancel parasitic capacitance contributions. Measured differential capacitance between pins 1 and 2 is just 0.6 pF - significantly lower than conventional single-diode SOT23 protectors (>3 pF).
PESD24VU1UT,215 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 25.4V
- Voltage - Clamping (Max) @ Ipp:
- 76V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 200W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.6pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD24VU1UT,215 FAQ
1.How can I place an order for PESD24VU1UT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD24VU1UT,215 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 PESD24VU1UT,215 reliable?
The price and inventory of PESD24VU1UT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD24VU1UT,215 is usually 5 days.
3.What payment methods are accepted for PESD24VU1UT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD24VU1UT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD24VU1UT,215?
PESD24VU1UT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD24VU1UT,215 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 PESD24VU1UT,215?
For technical support, including PESD24VU1UT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD24VU1UT,215 requirements.
6.How does Aetrix verify that PESD24VU1UT,215 is sourced from the original manufacturer or authorized distributors?
All PESD24VU1UT,215 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 PESD24VU1UT,215 meets industry standards.
7.What is the process for return or replacement of PESD24VU1UT,215?
All PESD24VU1UT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PESD24VU1UT,215, 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 PESD24VU1UT,215 part is unused and in its original packaging.
Return procedure for PESD24VU1UT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD24VU1UT,215 Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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ESD5Z3.3T1G
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D5V0H1B2LP-7B
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D5V0P1B2LP-7B
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ESD5Z5.0T1G
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DESD5V0U1BB-7
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
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