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Nexperia USA Inc. PESD2CANFD27V-TR
- Part No.:
- PESD2CANFD27V-TR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD2CANFD27V-TR.pdf
- Description:
- TVS DIODE 27VWM 44VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:37,312
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Product details
Overview
PESD2CANFD27V-TR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed for bidirectional transient suppression on CAN-FD and CAN bus lines with 27 V reverse standoff voltage, 33 V clamping at 1 A, and 6 pF capacitance per channel. It protects two differential high-speed vehicle network lines against IEC 61000-4-2 ±20 kV and ISO 10605 ±20 kV (150 pF/330 Ω) discharges.
For engineers reviewing the PESD2CANFD27V-TR datasheet, PESD2CANFD27V-TR pinout, PESD2CANFD27V-TR application, or PESD2CANFD27V-TR equivalent, this device is selected for CAN-FD physical layer protection where low capacitance, AEC-Q101 qualification, and common-cathode dual-diode topology enable compact placement near connectors without signal integrity degradation.
Technical Context
This device implements a dual-channel common-cathode TVS diode architecture optimized for automotive serial bus protection. Each channel provides symmetrical bidirectional clamping between line and ground, with matched 6 pF capacitance ensuring minimal impact on CAN-FD's 5 Mbps signaling integrity.
Its 175 °C junction temperature rating and AEC-Q101 qualification confirm suitability for under-hood environments. The 2.5 A peak pulse current (8/20 µs) supports robust surge immunity while maintaining low dynamic resistance (0.8 Ω) to limit voltage overshoot during fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 27 V - Ensures no conduction during normal CAN-FD bus operation (±12 V differential, 0–5 V common-mode). |
| Clamping Voltage | 33 V at 1 A - Limits transient voltage across protected lines to safe levels for CAN transceivers rated ≤40 V abs max. |
| Diode Capacitance | 6 pF - Preserves signal edge rate and eye diagram integrity up to 5 Mbps CAN-FD data rates. |
| ESD Rating | ±20 kV IEC 61000-4-2 - Meets automotive OEM requirements for connector-level ESD immunity. |
| Peak Pulse Current | 2.5 A (8/20 µs) - Handles induced surges from load dump or inductive switching in 12 V vehicle systems. |
| Junction Temperature | 175 °C - Supports placement near power electronics or engine control units without thermal derating. |
Pinout & Package
Supplied in SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body. RoHS-compliant, halogen-free, and qualified per AEC-Q101.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms cathode of diode protecting that line to common cathode. |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); forms cathode of second diode sharing common cathode. |
| 3 | CC (Common Cathode) | Connected to system ground; serves as shared return path for both ESD current paths, minimizing PCB loop area. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel common-cathode topology | Enables single-device protection of differential CAN-FD pairs with minimized ground path inductance and layout symmetry. |
| Low 6 pF inter-electrode capacitance | Maintains <1% signal rise-time degradation at 5 Mbps, avoiding bit error rate increase in high-speed automotive networks. |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per stress test standard. |
| Matched capacitance (≤0.5% ΔCd/Cd) | Preserves differential signal balance and common-mode rejection ratio (CMRR) across CANH/CANL channels. |
Applications
| CAN-FD Bus Protection | CAN 2.0B Bus Protection |
|---|---|
Use Scenario: Protecting high-speed (2–5 Mbps) Controller Area Network Flexible Data-Rate interfaces in ADAS ECUs and gateway modules. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at OBD-II or module connector, clamping fast ESD events before they reach the CAN transceiver. Use Value: Prevents latch-up or permanent damage to CAN FD transceivers (e.g., TJA1057x) during assembly handling or field exposure to ±20 kV contact discharge. | Use Scenario: Securing legacy CAN 2.0B networks in body control modules and powertrain sensors operating at 125 kbps–1 Mbps. IC Role / Device Role / Timing Role: Dual-line protector with matched capacitance preserving signal symmetry on low-speed differential buses. Use Value: Eliminates need for two discrete diodes, reducing BOM count and PCB footprint while maintaining <10 ps skew between CANH/CANL clamping response. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
Use Scenario: Safeguarding FlexRay communication links in chassis and suspension control units requiring deterministic 10 Mbps timing. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor on FlexRay A/B differential pairs, referenced to chassis ground via CC pin. Use Value: Maintains <50 mV common-mode noise margin during 20 kV ESD events, preventing protocol timeout or frame corruption in time-triggered networks. | Use Scenario: Shielding Single Edge Nibble Transmission (SENT) analog sensor outputs (e.g., pressure, temperature) from ESD coupling on harnesses. IC Role / Device Role / Timing Role: Unidirectional clamp on SENT signal line (K1) and supply rail (K2), with CC tied to ground. Use Value: Enables direct protection of 5 V SENT outputs without adding series impedance, preserving 3 µs nibble timing accuracy and 12-bit resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4710QTR | Integrated USB-C port protection IC with integrated switch; higher capacitance (15 pF), no AEC-Q101 rating. | Targeted at infotainment USB interfaces, not CAN/FlexRay physical layers. | Select only for non-automotive USB-C ESD + overvoltage protection; not suitable for CAN-FD signal integrity or under-hood thermal requirements. |
| ON Semiconductor NUP4202MR6T1G | Quad-channel SOT-23-6 device; 12 pF typical capacitance; 30 V VRWM; AEC-Q101 qualified. | Protects four lines (e.g., LIN + CAN + two signals); larger footprint and higher capacitance reduce CAN-FD speed margin. | Prefer when multi-line protection is needed and 12 pF capacitance is acceptable; avoid for >2 Mbps CAN-FD due to bandwidth limitation. |
Compared with STUSB4710QTR and NUP4202MR6T1G, PESD2CANFD27V-TR delivers optimal trade-off for CAN-FD: lowest capacitance (6 pF), precise 27 V standoff matching transceiver VCC tolerance, and dedicated dual-channel SOT23 layout enabling sub-3 mm² board area with minimal trace inductance.
Availability
PESD2CANFD27V-TR is available at Aetrix Electronics and suitable for automotive ECU design, CAN-FD gateway development, and FlexRay-based chassis control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD2CANFD27V-TR 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 high-volume, high-reliability essential semiconductors, with leadership in logic, discretes, and MOSFETs for automotive, industrial, and mobile markets.
This device belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for high-speed in-vehicle networks requiring AEC-Q101 compliance, ultra-low capacitance, and precise clamping performance under harsh thermal conditions.
FAQ
What is the maximum recommended trace length between PESD2CANFD27V-TR and the protected CAN connector?
Trace length must be ≤3 mm from each protected line (pin 1 and pin 2) to the connector, with the common cathode (pin 3) routed directly to a solid ground plane using ≥2 vias. Longer traces increase inductance, degrading clamping response and allowing voltage overshoot beyond 33 V during 1 ns ESD rise times.
Can PESD2CANFD27V-TR protect both CANH and CANL against common-mode transients?
Yes - its dual-cathode configuration enables simultaneous clamping of both lines to ground. During common-mode surges, current splits equally across K1→CC and K2→CC paths, leveraging matched capacitance and dynamic resistance to maintain <100 mV differential offset and prevent transceiver input stage saturation.
Is the 6 pF capacitance measured between each anode and the common cathode?
Yes - Cd = 6 pF is specified per channel (pin 1 to pin 3, and pin 2 to pin 3) at 1 MHz and 2.5 V reverse bias. The datasheet confirms ≤0.5% capacitance mismatch between channels, critical for maintaining differential signal fidelity on CAN-FD buses.
Does PESD2CANFD27V-TR require external series impedance for CAN-FD compliance?
No - it is designed for direct placement without series resistors. Its low dynamic resistance (0.8 Ω) and fast response (<1 ns) allow full ESD energy shunting to ground while preserving the 60 Ω characteristic impedance of the CAN-FD bus segment upstream of the protection device.
PESD2CANFD27V-TR 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:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 27V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 44V
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD2CANFD27V-TR FAQ
1.How can I place an order for PESD2CANFD27V-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD2CANFD27V-TR 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 PESD2CANFD27V-TR reliable?
The price and inventory of PESD2CANFD27V-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD2CANFD27V-TR is usually 5 days.
3.What payment methods are accepted for PESD2CANFD27V-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD2CANFD27V-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD2CANFD27V-TR?
PESD2CANFD27V-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD2CANFD27V-TR 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 PESD2CANFD27V-TR?
For technical support, including PESD2CANFD27V-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD2CANFD27V-TR requirements.
6.How does Aetrix verify that PESD2CANFD27V-TR is sourced from the original manufacturer or authorized distributors?
All PESD2CANFD27V-TR 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 PESD2CANFD27V-TR meets industry standards.
7.What is the process for return or replacement of PESD2CANFD27V-TR?
All PESD2CANFD27V-TR units undergo pre-shipment inspection (PSI). If there is an issue with PESD2CANFD27V-TR, 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 PESD2CANFD27V-TR part is unused and in its original packaging.
Return procedure for PESD2CANFD27V-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD2CANFD27V-TR Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
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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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