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Nexperia USA Inc. PESD27VL2BAT-QR
- Part No.:
- PESD27VL2BAT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD27VL2BAT-QR.pdf
- Description:
- BIPOLAR DISCRETES
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
PESD27VL2BAT-QR from Nexperia is a dual-channel automotive-grade ESD protection diode in SOT23 package, designed to safeguard two in-vehicle network lines (e.g., CAN-FD and CAN) against ±30 kV IEC 61000-4-2 and ISO 10605 transients, with 27 V reverse standoff voltage, 31 V clamping at 1 A, and 10 pF capacitance.
For engineers reviewing the PESD27VL2BAT-QR datasheet, PESD27VL2BAT-QR pinout, PESD27VL2BAT-QR application, or PESD27VL2BAT-QR equivalent, this device is selected for high-reliability ESD suppression on low-capacitance, high-speed automotive bus interfaces where junction temperature up to 175 °C and AEC-Q101 qualification are mandatory.
Technical Context
This bidirectional dual-diode array uses common-cathode configuration (pins 1 & 2 as individual cathodes, pin 3 as shared cathode) to provide symmetrical transient clamping on two independent signal lines referenced to a common ground path. Its ultra-low 10 pF capacitance ensures minimal signal integrity impact on CAN-FD (up to 5 Mbps) and SENT interfaces.
The device operates within a -55 °C to +175 °C ambient range and delivers 31 V clamping at 1 A (8/20 µs), with dynamic resistance of 0.55 Ω - enabling fast energy diversion while maintaining low forward voltage drop during ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 27 V - maximum continuous operating voltage before conduction begins; sets safe margin above 24 V automotive supply rails. |
| Clamping Voltage | 31 V at 1 A (8/20 µs) - peak voltage seen by protected IC during surge; limits stress on downstream CAN transceivers. |
| ESD Withstand | ±30 kV per IEC 61000-4-2 and ISO 10605 - meets stringent automotive ESD immunity requirements for connector-level protection. |
| Diode Capacitance | 10 pF at 0 V, 1 MHz - preserves signal edge rate and eye diagram integrity on high-speed buses like CAN-FD. |
| Junction Temperature | 175 °C max - supports under-hood placement near engine control units without thermal derating. |
| Peak Pulse Current | 3.9 A (8/20 µs) - defines maximum transient energy absorption capability per line before failure. |
| Dynamic Resistance | 0.55 Ω - enables rapid voltage clamping response and minimizes IR drop during high-current ESD events. |
Pinout & Package
Package: SOT23 (TO-236AB), 3-terminal surface-mount plastic package, 2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms anode-to-ground path during positive transients. |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); provides independent clamping for differential pair. |
| 3 | CC (Common Cathode) | Shared cathode node tied to system ground; establishes reference for bidirectional clamping on both lines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line protection in single SOT23 | Reduces PCB footprint by 50% vs. discrete diodes; simplifies layout for differential bus routing. |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock per JESD22 standards. |
| Ultra-low 10 pF capacitance | Enables use on >5 Mbps CAN-FD and SENT timing-critical signals without measurable rise-time degradation. |
| 175 °C junction rating | Supports direct mounting near powertrain ECUs without external heatsinking or derating. |
| Common-cathode architecture | Ensures matched clamping behavior across both lines; eliminates skew-induced common-mode noise during ESD events. |
Applications
| CAN-FD Bus Protection | CAN Bus Protection |
|---|---|
|
Use Scenario: Protecting high-speed Controller Area Network Flexible Data-Rate (CAN-FD) physical layer in ADAS domain controllers. IC Role / Device Role / Timing Role: Front-end ESD clamp placed between connector and CAN-FD transceiver, absorbing ±30 kV contact discharge before it reaches the PHY. Use Value: Maintains signal integrity at 5 Mbps with <10 pF loading while surviving under-hood thermal cycles up to 175 °C. |
Use Scenario: Safeguarding legacy CAN 2.0B networks in body control modules exposed to service port ESD events. IC Role / Device Role / Timing Role: Dual-line transient suppressor mounted at OBD-II connector interface, shunting ESD to chassis ground via pin 3. Use Value: Delivers 31 V clamping at 1 A to prevent latch-up in NXP TJA1043 or ST TSN8251 transceivers during service technician handling. |
| FlexRay Bus Protection | SENT Sensor Interface Protection |
|
Use Scenario: Securing FlexRay communication links in powertrain gateways subject to battery disconnect transients and ESD. IC Role / Device Role / Timing Role: Bidirectional clamping device on FRAY_A/FRAY_B differential pair, leveraging matched K1/K2 paths to preserve common-mode rejection. Use Value: 0.55 Ω dynamic resistance ensures sub-10 ns response time, preventing data corruption during 2.5–10 Mbps FlexRay frame transmission. |
Use Scenario: Shielding Single Edge Nibble Transmission (SENT) lines from ESD in engine knock sensor and throttle position sensor modules. IC Role / Device Role / Timing Role: Low-capacitance protector on SENT signal and return lines, placed immediately after sensor harness entry point. Use Value: 10 pF capacitance avoids pulse-width distortion in 12-bit nibble encoding; 27 V VRWM accommodates 24 V supply-referenced SENT outputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line automotive ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor SZ1.5SMF27AQT1G | Unidirectional, single-line, higher 100 pF capacitance, 36 V clamping at 1 A | Requires two devices for dual-line protection; unsuitable for CAN-FD due to capacitance-induced jitter | Select only for cost-sensitive 12 V CAN systems where speed <1 Mbps and thermal rating ≤150 °C is acceptable |
| Vishay VEML6040-GS08 | Optical sensor IC - not an ESD protector; incompatible function and package | N/A - misidentified part; no functional equivalence | Avoid; incorrect cross-reference; verify part number before procurement |
Compared with PESD27VL2BAT-QR, SZ1.5SMF27AQT1G lacks integrated dual-line topology and adds 90 pF parasitic capacitance that degrades CAN-FD signal integrity, while VEML6040-GS08 is a light sensor with zero ESD protection capability - confirming PESD27VL2BAT-QR's unique suitability for compact, high-speed automotive bus protection.
Availability
PESD27VL2BAT-QR is available at Aetrix Electronics and suitable for CAN-FD gateways, automotive body control modules, and powertrain sensor interfaces requiring stable component supply across extended temperature and long product lifecycles.
Supply support for PESD27VL2BAT-QR 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 logic, analog, and ESD protection solutions optimized for automotive, industrial, and mobile markets.
PESD27VL2BAT-QR belongs to Nexperia's Automotive ESD Protection Diode family, engineered specifically for robust, low-capacitance transient suppression on high-speed in-vehicle networks including CAN-FD, CAN, FlexRay, and SENT.
FAQ
What is the maximum allowable junction temperature for continuous operation?
The PESD27VL2BAT-QR is rated for a maximum junction temperature of 175 °C, validated per AEC-Q101 test conditions including high-temperature operating life (HTOL) and temperature cycling. This allows direct placement near heat sources such as engine control units without thermal derating, provided PCB copper area and airflow meet Nexperia's recommended layout guidelines.
Can this device protect both CANH and CANL simultaneously in a differential pair?
Yes - the common-cathode configuration (pin 3 grounded) enables independent clamping of CANH (pin 1) and CANL (pin 2) to ground. During a positive ESD event on CANH, current flows from pin 1 to pin 3; during a negative event on CANL, current flows from pin 3 to pin 2. This preserves differential signaling integrity while suppressing common-mode transients.
Is the 30 kV ESD rating applicable to both contact and air discharge per IEC 61000-4-2?
The datasheet specifies ±30 kV for contact discharge per IEC 61000-4-2. Air discharge rating is not published; however, typical correlation suggests ~35–40 kV air discharge capability. For compliance-critical designs, validation must be performed using contact discharge per the standard, as that is the documented and tested condition.
Does the 10 pF capacitance value vary with applied reverse voltage?
Yes - capacitance decreases with increasing reverse bias. At 0 V, Cd = 10 pF (typical); at VRWM = 27 V, it drops to approximately 9 pF (min). This voltage-dependent behavior is documented in Figure 4 of the datasheet and ensures minimal signal distortion across the full operating voltage range of automotive bus lines.
PESD27VL2BAT-QR 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 (Max)
- Voltage - Breakdown (Min):
- 28V
- Voltage - Clamping (Max) @ Ipp:
- 42V
- Current - Peak Pulse (10/1000µs):
- 3.9A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 9pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD27VL2BAT-QR FAQ
1.How can I place an order for PESD27VL2BAT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD27VL2BAT-QR 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 PESD27VL2BAT-QR reliable?
The price and inventory of PESD27VL2BAT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD27VL2BAT-QR is usually 5 days.
3.What payment methods are accepted for PESD27VL2BAT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD27VL2BAT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD27VL2BAT-QR?
PESD27VL2BAT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD27VL2BAT-QR 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 PESD27VL2BAT-QR?
For technical support, including PESD27VL2BAT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD27VL2BAT-QR requirements.
6.How does Aetrix verify that PESD27VL2BAT-QR is sourced from the original manufacturer or authorized distributors?
All PESD27VL2BAT-QR 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 PESD27VL2BAT-QR meets industry standards.
7.What is the process for return or replacement of PESD27VL2BAT-QR?
All PESD27VL2BAT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD27VL2BAT-QR, 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 PESD27VL2BAT-QR part is unused and in its original packaging.
Return procedure for PESD27VL2BAT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD27VL2BAT-QR Tags
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