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Nexperia USA Inc. PESD12VU1UT,215
- Part No.:
- PESD12VU1UT,215
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD12VU1UT,215.pdf
- Description:
- TVS DIODE 12VWM 39VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:119,705
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Product details
Overview
PESD12VU1UT,215 from Nexperia is a unidirectional ultra-low-capacitance ESD protection diode in SOT23 (TO-236AB) package, designed to safeguard single high-speed data lines against IEC 61000-4-2 level 4 ESD (≥30 kV contact), with 12 V reverse stand-off voltage, 0.6 pF typical capacitance, and 200 W peak pulse power for 8/20 µs surge events - deployed in Ethernet PHY interfaces and FireWire data paths.
For engineers reviewing the PESD12VU1UT,215 datasheet, PESD12VU1UT,215 pinout, PESD12VU1UT,215 application, or PESD12VU1UT,215 equivalent, this device is selected for high-fidelity signal integrity preservation in >100 Mbps differential data links where sub-1 pF loading and low clamping voltage (<39 V at 5 A) are critical to maintain eye diagram margin and jitter performance.
Technical Context
The PESD12VU1UT,215 integrates a primary ESD protection diode and a cathode-compensation diode in a three-terminal SOT23 configuration, enabling effective common-mode and differential-mode transient suppression when paired in anti-parallel arrangements. Its unidirectional architecture provides asymmetric clamping with 14.2 V minimum breakdown voltage and <50 nA reverse leakage at 12 V.
It complies fully with IEC 61000-4-2 (±30 kV contact), IEC 61000-4-5 (8/20 µs surge up to 5 A), and MIL-STD-883 HBM (10 kV), while maintaining differential resistance of 200 Ω at 1 mA - optimized for placement directly at board-level I/O connectors without degrading signal rise/fall times.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 12 V - defines maximum continuous operating voltage before conduction; ensures no interference with 12 V nominal signaling rails. |
| Diode Capacitance (Cd) | 0.6 pF (typ.) at 1 MHz, 0 V - preserves signal integrity on USB 2.0, FireWire, and 100BASE-TX lines by minimizing capacitive loading. |
| Clamping Voltage (VCL) | 39 V max at 5 A IPP - limits transient overvoltage to safe levels for downstream PHY ICs during IEC 61000-4-5 surges. |
| ESD Withstand (IEC 61000-4-2) | 30 kV contact discharge - exceeds level 4 requirement (>8 kV), enabling robust handling in manufacturing and field environments. |
| Peak Pulse Power (PPP) | 200 W at 8/20 µs - sustains high-energy transients without thermal runaway, validated per IEC 61000-4-5 waveform. |
| Breakdown Voltage (VBR) | 14.2–16.7 V at 5 mA - ensures reliable turn-on margin above VRWM to prevent false triggering during normal operation. |
| Reverse Leakage (IRM) | <1 nA at 12 V, 25 °C - eliminates DC loading on high-impedance data receivers and avoids bias shift in precision analog front-ends. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package with 3 leads, 1.9 mm × 1.1 mm footprint, 0.95 mm height, and gull-wing terminations - compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (ESD protection diode) | Main current path for positive transients; connects to protected line in unidirectional configuration. |
| 2 | Cathode (compensation diode) | Enables balanced clamping response and ultra-low capacitance via internal series-diode topology. |
| 3 | Common anode | Shared anode node tied to system ground; must be connected to low-inductance ground plane for effective transient shunting. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.6 pF typ. - enables use on >480 Mbps USB 2.0 and IEEE 1394a FireWire without signal degradation. |
| High ESD immunity | 30 kV contact discharge - protects against human-body model events in handheld and industrial equipment assembly. |
| Low clamping voltage | 23 V at 1 A, 39 V at 5 A - keeps protected ICs within safe SOA during fast-rising ESD pulses. |
| Surge-rated construction | 200 W peak pulse power (8/20 µs) - handles lightning-induced surges in LAN edge devices and PoE-powered endpoints. |
| Thermal robustness | 150 °C max junction temperature - supports operation in sealed enclosures and automotive infotainment modules. |
Applications
| 10/100/1000 Ethernet PHY Interface | FireWire (IEEE 1394a) Data Port |
|---|---|
Use Scenario: Protection of MDI-X differential pairs in enterprise switches and IP cameras before the Ethernet transformer. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed at RJ-45 connector, clamping ESD before signal reaches magnetics and PHY IC. Use Value: 0.6 pF capacitance prevents return loss degradation at 125 MHz, preserving TDR impedance matching and reducing bit error rate. |
Use Scenario: Shielded cable interface protection in digital camcorders and audio workstations with FireWire 400 ports. IC Role / Device Role / Timing Role: Single-line ESD clamp on TPB/TPA differential pair, referenced to chassis ground via low-inductance trace. Use Value: 30 kV contact ESD rating ensures compliance with IEC 61000-4-2 during frequent cable insertion/removal in studio environments. |
| Industrial USB 2.0 Host Port | Automotive Infotainment Display Link |
Use Scenario: Front-panel USB host port on programmable logic controllers and HMI panels exposed to factory-floor ESD. IC Role / Device Role / Timing Role: Line-side protection diode on D+ and D−, with pin 3 grounded to PCB ground plane adjacent to connector. Use Value: 200 Ω differential resistance minimizes voltage drop across protection path, avoiding USB handshake timing violations. |
Use Scenario: LVDS or FPD-Link II video data lanes between head unit and TFT display in vehicles with high EMC stress. IC Role / Device Role / Timing Role: Per-lane unidirectional clamp on each high-speed video signal, mounted within 3 mm of connector pad. Use Value: Sub-1 pF loading maintains signal integrity at 1.5 Gbps, preventing pixel corruption and frame tearing under ESD stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z12VDW1T2G | Bi-directional, 0.8 pF capacitance, 12 V VRWM, 150 W PPP | Supports symmetric transients but adds 0.2 pF loading - less suitable for >400 Mbps links | Select when bidirectional clamping is required and bandwidth ≤ 200 Mbps |
| TPD2E001DRYR | Unidirectional, 0.75 pF, 12 V VRWM, 100 W PPP, integrated 100 Ω series resistor | Includes current-limiting resistor - reduces peak current but increases propagation delay | Select when combined ESD + overcurrent protection is needed and 100 Ω series impedance is acceptable |
Compared with ESD5Z12VDW1T2G and TPD2E001DRYR, PESD12VU1UT,215 delivers the lowest capacitance (0.6 pF) and highest surge power (200 W) in a pure diode topology - making it optimal for high-speed, low-latency interfaces where minimal signal perturbation is mandatory.
Availability
PESD12VU1UT,215 is available at Aetrix Electronics and suitable for 1000BASE-T Ethernet PHY interfaces, FireWire 400 data ports, and industrial USB 2.0 host applications requiring stable component supply across multi-year production cycles.
Supply support for PESD12VU1UT,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 consumer markets.
The PESDxU1UT series targets high-speed interface protection, engineered specifically to meet stringent IEC 61000-4-2/4-5 requirements while minimizing parasitic capacitance - addressing design challenges in next-generation connectivity subsystems.
FAQ
What is the recommended PCB layout for optimal ESD performance?
Place PESD12VU1UT,215 within 3 mm of the protected connector, route the protected line directly to pin 1 and pin 2 with minimal trace length, connect pin 3 to a solid ground plane using multiple vias, and avoid routing unprotected signals parallel to protected traces - these practices reduce inductance in the transient path and improve clamping response time.
Can PESD12VU1UT,215 be used for bidirectional signal lines like RS-485?
No - PESD12VU1UT,215 is unidirectional and only clamps positive transients relative to ground. For bidirectional lines, two units must be configured in anti-parallel (pin 1 of device A to pin 2 of device B, both pin 3s to ground), as documented in Nexperia's application note AN11124 for differential-mode Ethernet protection.
Does this device require external biasing or series resistance?
No - PESD12VU1UT,215 operates passively with no external components. Its low leakage (<50 nA at 12 V) eliminates need for bias networks, and its 200 Ω differential resistance is intrinsic to the diode structure - no series resistor is required for standard high-speed data line protection.
How does its 0.6 pF capacitance compare to typical TVS diodes?
Standard unidirectional TVS diodes typically exhibit 10–100 pF capacitance, which distorts high-frequency signals. At 0.6 pF, PESD12VU1UT,215 introduces negligible loading - less than 0.5% impedance change at 1 GHz - enabling use on USB 2.0, FireWire, and Gigabit Ethernet without equalization or compensation.
PESD12VU1UT,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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 14.2V
- Voltage - Clamping (Max) @ Ipp:
- 39V
- Current - Peak Pulse (10/1000µs):
- 5A (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
PESD12VU1UT,215 FAQ
1.How can I place an order for PESD12VU1UT,215 through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD12VU1UT,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 PESD12VU1UT,215 reliable?
The price and inventory of PESD12VU1UT,215 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD12VU1UT,215 is usually 5 days.
3.What payment methods are accepted for PESD12VU1UT,215?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD12VU1UT,215 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD12VU1UT,215?
PESD12VU1UT,215 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD12VU1UT,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 PESD12VU1UT,215?
For technical support, including PESD12VU1UT,215 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD12VU1UT,215 requirements.
6.How does Aetrix verify that PESD12VU1UT,215 is sourced from the original manufacturer or authorized distributors?
All PESD12VU1UT,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 PESD12VU1UT,215 meets industry standards.
7.What is the process for return or replacement of PESD12VU1UT,215?
All PESD12VU1UT,215 units undergo pre-shipment inspection (PSI). If there is an issue with PESD12VU1UT,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 PESD12VU1UT,215 part is unused and in its original packaging.
Return procedure for PESD12VU1UT,215:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD12VU1UT,215 Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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