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Nexperia USA Inc. PESD1IVN27U-QX
- Part No.:
- PESD1IVN27U-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- -
- Datasheet:
-
PESD1IVN27U-QX.pdf
- Description:
- PESD1IVN27U-Q/SOT323/SC-70
- Quantity:
- Payment:
- Shipping:
Inventory:2,380
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Product details
Overview
PESD1IVN27U-QX from Nexperia is a bidirectional automotive-grade ESD protection diode in SOT323 (SC-70) package, designed to safeguard in-vehicle network bus lines against IEC 61000-4-2 ±30 kV and ISO 10605 ±30 kV ESD events, with 27 V reverse standoff voltage, 36 V clamping at 3 A, and 14 pF typical capacitance - deployed on CAN, LIN, FlexRay, and SENT interfaces.
For engineers reviewing the PESD1IVN27U-QX datasheet, PESD1IVN27U-QX pinout, PESD1IVN27U-QX application, or PESD1IVN27U-QX equivalent, this device is selected for low-capacitance, high-reliability transient suppression in space-constrained automotive signal lines where leakage (<1 nA), dynamic resistance (0.2 Ω), and AEC-Q101 qualification are critical.
Technical Context
This dual-cathode TVS diode implements a symmetrical bidirectional clamping architecture using two series-connected avalanche diodes, enabling robust ±30 kV ESD protection without polarity sensitivity. Its 14–17 pF capacitance at 0 V reverse bias ensures minimal signal integrity impact on high-speed IVN buses up to 1 Mbps.
The device operates within −55 °C to +150 °C ambient range and supports peak pulse currents up to 3 A (8/20 μs), with clamping voltage tightly bounded between 36 V (typ) and 45 V (max) - meeting ISO 7637-3 Pulse a (−150 V) and Pulse b (+100 V) surge immunity requirements for automotive electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 27 V - Maximum continuous operating voltage before conduction; sets upper limit for protected bus line DC bias (e.g., LIN at 12 V, CAN at 5 V). |
| Clamping Voltage | 36 V (typ) at 3 A - Peak voltage seen by downstream IC during 8/20 μs surge; ensures connected transceivers remain below absolute maximum ratings. |
| ESD Rating | ±30 kV per IEC 61000-4-2 contact discharge - Validates immunity to human-body-model ESD events common in vehicle assembly and service environments. |
| Diode Capacitance | 14 pF (typ) at 0 V - Low enough to avoid signal rise-time degradation on 1 Mbps LIN or 5 Mbps CAN FD lines. |
| Leakage Current | 1 nA (typ) at 27 V - Negligible power loss and bus loading in always-on automotive modules (e.g., body control units). |
| Dynamic Resistance | 0.2 Ω - Enables fast, low-impedance clamping response to sub-nanosecond ESD transients, minimizing energy dissipation in protected ICs. |
| AEC-Q101 Qualified | Yes - Confirmed reliability for automotive under temperature cycling, humidity, and mechanical stress per discrete semiconductor stress test standard. |
Pinout & Package
SOT323 (SC-70) plastic surface-mount package: 3-terminal, 1.3 mm pitch, 2.0 × 1.25 × 0.95 mm body size, optimized for automated placement and reflow soldering on dense automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to protected signal line (e.g., LIN bus); forms one half of symmetrical clamping path to ground. |
| 2 | Not Connected | No internal connection; must be left floating - avoids unintended parasitic coupling or solder bridging in layout. |
| 3 | Cathode (Diode 2) | Connects to same protected signal line as Pin 1; completes bidirectional clamping structure with shared anode tied to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Symmetrical ±36 V clamping enables single-device protection of unidirectional or differential IVN signals without polarity concerns. |
| Ultra-Low Capacitance | 14 pF typical minimizes signal distortion on 1–5 Mbps automotive serial buses while maintaining ESD robustness. |
| AEC-Q101 Qualification | Validated for automotive under temperature cycling, HTRB, and ESD stress - eliminates need for additional qualification effort in Tier-1 designs. |
| Low Leakage | 1 nA max at VRWM ensures no measurable current draw on always-active vehicle networks, preserving battery standby life. |
| Compact SOT323 Footprint | 2.0 × 1.25 mm area saves board space vs. SO-8 or SOT23 alternatives - critical for multi-channel ECU sensor nodes. |
Applications
| CAN Bus Protection | LIN Bus Protection |
|---|---|
|
Use Scenario: Protecting high-speed Controller Area Network (CAN) transceivers in engine control units and ADAS domain controllers from ESD during vehicle assembly and field operation. IC Role / Device Role / Timing Role: Transient voltage suppressor placed directly at CAN_H/CAN_L connector entry point, clamping surges before they reach the PHY layer. Use Value: Prevents latch-up or permanent damage to CAN transceivers rated for ≤40 V absolute maximum, leveraging 36 V clamping and 0.2 Ω dynamic resistance. |
Use Scenario: Safeguarding low-cost Local Interconnect Network (LIN) slave nodes - such as door modules and seat controllers - from ESD induced via wiring harnesses. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on LIN bus line, referenced to chassis ground, with minimal capacitive loading to preserve 19.2 kbps timing margins. Use Value: Maintains signal integrity across 20+ meter harness runs while meeting ISO 10605 ±30 kV requirements without adding series impedance. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
|
Use Scenario: Shielding FlexRay communication channels in powertrain and chassis ECUs from electrostatic discharge during manufacturing handling and roadside diagnostics. IC Role / Device Role / Timing Role: Low-capacitance TVS array element protecting differential FlexRay A/B lines, mounted adjacent to connector with short trace routing. Use Value: 14 pF capacitance avoids skew between differential pairs at 10 Mbps data rates, while 27 V VRWM accommodates FlexRay's 2.5–5.5 V common-mode range. |
Use Scenario: Securing Single Edge Nibble Transmission (SENT) sensor interfaces - e.g., pressure and position sensors in brake systems - from ESD-induced bit errors or reset events. IC Role / Device Role / Timing Role: Point-of-entry ESD suppressor on SENT signal line, grounded to local sensor module ground plane to minimize loop inductance. Use Value: Sub-1 nA leakage prevents false triggering of SENT's 5.5 V logic threshold; 36 V clamping protects microcontroller GPIOs rated for 6 V max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor SZ1.5SMC27AQ | Unidirectional, higher 27 V VBR, 43 V clamping at 3 A, 1000 W peak power, DO-214AB package (larger, 4.5 × 3.5 mm) | Requires separate devices per signal polarity; unsuitable for bidirectional IVN buses like LIN without external circuitry | Select only for high-energy surge-only scenarios (e.g., ISO 7637-2) where ESD is secondary and board space is not constrained. |
| Vishay VE15A270L | Bidirectional, 27 V VRWM, 45 V clamping at 3 A, 15 pF capacitance, SOT-23 package (2.9 × 1.3 mm) | Higher clamping voltage increases risk to 40 V-rated transceivers; larger footprint reduces routing density in compact ECUs | Acceptable for cost-sensitive non-safety LIN nodes where 45 V clamping margin is acceptable and SOT-23 placement is feasible. |
Compared with SZ1.5SMC27AQ and VE15A270L, PESD1IVN27U-QX delivers tighter clamping (36 V vs. ≥43 V), lower capacitance (14 pF vs. ≥15 pF), and smaller footprint (2.0 × 1.25 mm vs. ≥2.9 × 1.3 mm), making it optimal for space- and performance-critical automotive IVN protection.
Availability
PESD1IVN27U-QX is available at Aetrix Electronics and suitable for CAN bus protection, LIN node hardening, FlexRay interface shielding, and SENT sensor interface protection requiring stable component supply across automotive production programs.
Supply support for PESD1IVN27U-QX 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-enhancing components, delivering high-performance, reliable, and scalable solutions for automotive, industrial, and consumer markets.
PESD1IVN27U-QX belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust, low-capacitance transient suppression on in-vehicle network buses under AEC-Q101 stress conditions.
FAQ
What is the maximum junction temperature rating for PESD1IVN27U-QX?
The absolute maximum junction temperature is 150 °C, validated per IEC 60134 limiting values. This allows operation in under-hood environments up to 125 °C ambient when derated per thermal resistance curves in the datasheet, with no degradation in ESD performance.
Can PESD1IVN27U-QX protect both CAN_H and CAN_L simultaneously?
No - PESD1IVN27U-QX is a single-line protector. For full CAN differential pair protection, two devices are required: one placed between CAN_H and ground, another between CAN_L and ground, with both sharing the same ground reference to maintain common-mode rejection.
Is Pin 2 required to be connected to ground or left floating?
Pin 2 is internally not connected (n.c.) and must remain unconnected in the PCB layout. Soldering or routing to ground introduces parasitic capacitance and may compromise ESD performance; the datasheet explicitly requires it to be left floating.
How does the 0.2 Ω dynamic resistance impact system-level ESD robustness?
A 0.2 Ω dynamic resistance enables faster voltage collapse during ESD events, reducing the time-integrated energy (I²t) delivered to downstream ICs. This directly lowers failure probability in transceivers with limited surge withstand capability, especially under repeated ±8 kV contact discharges.
PESD1IVN27U-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- -
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- -
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- -
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
PESD1IVN27U-QX FAQ
1.How can I place an order for PESD1IVN27U-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD1IVN27U-QX 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 PESD1IVN27U-QX reliable?
The price and inventory of PESD1IVN27U-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD1IVN27U-QX is usually 5 days.
3.What payment methods are accepted for PESD1IVN27U-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD1IVN27U-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD1IVN27U-QX?
PESD1IVN27U-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD1IVN27U-QX 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 PESD1IVN27U-QX?
For technical support, including PESD1IVN27U-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD1IVN27U-QX requirements.
6.How does Aetrix verify that PESD1IVN27U-QX is sourced from the original manufacturer or authorized distributors?
All PESD1IVN27U-QX 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 PESD1IVN27U-QX meets industry standards.
7.What is the process for return or replacement of PESD1IVN27U-QX?
All PESD1IVN27U-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD1IVN27U-QX, 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 PESD1IVN27U-QX part is unused and in its original packaging.
Return procedure for PESD1IVN27U-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD1IVN27U-QX Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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D12V0L1B2LP-7B
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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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