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Nexperia USA Inc. PESD27VU2BT-QR
- Part No.:
- PESD27VU2BT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD27VU2BT-QR.pdf
- Description:
- BIPOLAR DISCRETES
- Quantity:
- Payment:
- Shipping:
Inventory:1,185
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Product details
Overview
PESD27VU2BT-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, FlexRay) against ±15 kV IEC 61000-4-2 and ISO 10605 transients, with 27 V reverse standoff voltage, 34 V clamping at 1 A, and ultra-low 4.0 pF capacitance for minimal signal distortion.
For engineers reviewing the PESD27VU2BT-QR datasheet, PESD27VU2BT-QR pinout, PESD27VU2BT-QR application, or PESD27VU2BT-QR equivalent, this device is selected for high-speed automotive bus protection where low capacitance, AEC-Q101 qualification, and precise bidirectional clamping are critical design requirements.
Technical Context
This bidirectional dual-diode array uses common-cathode configuration (pins 1 & 2 = cathodes, pin 3 = shared cathode) to provide symmetrical transient suppression on two independent lines referenced to a common ground. Its VBR of 28–38 V ensures robust overvoltage margin above 27 V VRWM while maintaining fast response under ESD stress.
The device delivers 1.8 A peak pulse current (8/20 µs), dynamic resistance of 1.3 Ω, and operates up to 175 °C junction temperature-enabling placement near hot automotive ECUs without derating. Clamping performance is validated per IEC 61000-4-5 and ISO 10605 with C = 150 pF / R = 330 Ω.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 27 V - Maximum continuous operating voltage before leakage exceeds 1 µA; sets upper limit for bus line DC bias compatibility. |
| Clamping Voltage | 34 V (typ.) at 1 A - Peak voltage seen by protected IC during 8/20 µs surge; ensures downstream transceivers remain within safe SOA. |
| Diode Capacitance | 4.0 pF (typ.) at 1 MHz / -2.5 V - Enables use on >5 Mbps CAN-FD and SENT buses without signal integrity degradation. |
| ESD Rating | ±15 kV IEC 61000-4-2 contact discharge - Meets automotive OEM ESD immunity requirements for connector-level protection. |
| Junction Temperature | 175 °C max - Supports placement in engine bay or powertrain modules without thermal derating. |
| Peak Pulse Current | 1.8 A (8/20 µs) - Handles high-energy surges from load dump or inductive switching in vehicle networks. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 × 1.3 × 1.0 mm body; optimized for automated placement and reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (Cathode 1) | Connects to first protected line (e.g., CANH); forms bidirectional clamp path to common cathode (pin 3). |
| 2 | K2 (Cathode 2) | Connects to second protected line (e.g., CANL); independent clamp path sharing pin 3 return. |
| 3 | CC (Common Cathode) | Ground reference node for both diodes; must connect directly to low-impedance chassis or system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test standard-ensures reliability across temperature cycling, humidity, and mechanical shock. |
| Bidirectional dual-line protection | Single SOT23 package protects two independent bus lines with matched clamping characteristics-reduces PCB area vs. discrete solutions. |
| Ultra-low 4.0 pF capacitance | Preserves signal edge rate and eye diagram integrity on high-speed automotive serial buses (CAN-FD, SENT). |
| 175 °C junction rating | Enables mounting in proximity to heat sources (e.g., power converters, motor drivers) without thermal shutdown or parameter drift. |
Applications
| CAN-FD Bus Protection | FlexRay Bus Protection |
|---|---|
Use Scenario: Protecting high-speed Controller Area Network Flexible Data-Rate (CAN-FD) transceivers in ADAS domain controllers. IC Role / Device Role: Primary ESD clamp placed between connector and transceiver pins, shunting transients to ground before reaching silicon. Use Value: 4.0 pF capacitance avoids signal rise-time degradation at 5 Mbps, while 34 V clamping prevents transceiver latch-up during ±15 kV ESD events. |
Use Scenario: Safeguarding FlexRay communication nodes in chassis control units requiring deterministic 10 Mbps timing. IC Role / Device Role: Dual-line transient suppressor on FlexRay A/B differential pair, referenced to common ground plane. Use Value: Matched clamping on both lines maintains common-mode rejection; 175 °C rating supports under-hood deployment near suspension ECUs. |
| CAN Bus Protection | SENT Sensor Interface Protection |
Use Scenario: ESD hardening of legacy CAN 2.0B networks in body control modules exposed to service port connectors. IC Role / Device Role: Secondary protection stage after common-mode choke, absorbing residual ESD energy before transceiver input. Use Value: 27 V VRWM aligns with 12 V automotive supply rails; low leakage (<50 nA) prevents bus loading during sleep mode. |
Use Scenario: Protecting Single Edge Nibble Transmission (SENT) sensor inputs in engine management systems. IC Role / Device Role: Line-to-ground clamp on SENT data line, placed adjacent to sensor connector to minimize inductance. Use Value: Sub-35 V clamping preserves SENT's 5.5 V logic threshold; 1.3 Ω dynamic resistance ensures fast energy dissipation during ESD pulses. |
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 |
|---|---|---|---|
| ON Semiconductor NUP2114MUTAG | Higher 5.5 pF capacitance; lower 24 V VRWM; same SOT23-3L package. | Less suitable for >2 Mbps CAN-FD due to higher capacitance; better fit for 125 kbps CAN 2.0. | Select when cost sensitivity outweighs high-speed signal integrity needs and VRWM margin is acceptable. |
| Vishay VEML6040-GS08 | Single-channel only; requires two devices; 3.5 pF capacitance; 24 V VRWM; different SOD-323 package. | Increases PCB area and assembly cost; lacks integrated dual-line symmetry and common-cathode layout. | Choose only if existing layout accommodates SOD-323 or dual-device routing is already implemented. |
Compared with NUP2114MUTAG and VEML6040-GS08, PESD27VU2BT-QR offers superior high-speed bus compatibility via 4.0 pF capacitance and 27 V VRWM, integrated dual-line topology in SOT23, and verified AEC-Q101 performance at 175 °C-making it optimal for next-gen automotive serial networks.
Availability
PESD27VU2BT-QR is available at Aetrix Electronics and suitable for CAN-FD gateways, FlexRay chassis controllers, and SENT-based engine sensor interfaces requiring stable component supply across automotive production lifecycles.
Supply support for PESD27VU2BT-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-grade ESD protection and advanced packaging.
PESD27VU2BT-QR belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust, low-capacitance transient suppression on high-speed in-vehicle networks including CAN-FD, FlexRay, and SENT.
FAQ
What is the maximum recommended PCB trace length between PESD27VU2BT-QR and the protected connector?
Trace length should be ≤3 mm from connector pad to device pin to minimize inductance that degrades ESD clamping performance. Longer traces increase voltage overshoot during fast transients; use direct routing with no vias between pin 1/pin 2 and the protected lines, and connect pin 3 to ground plane via ≥2 thermal vias within 1 mm.
Does PESD27VU2BT-QR require external series impedance for optimal ESD protection?
No external series resistor is required-the device is designed for direct line-to-ground placement. Adding series impedance may delay clamping response and reduce effectiveness against sub-nanosecond ESD edges. Layout best practice is low-inductance grounding: short, wide traces from pin 3 to solid ground plane with multiple vias.
How does the common-cathode configuration affect circuit board layout versus dual independent diodes?
The common-cathode (pin 3) configuration mandates single-point grounding for both protected lines, eliminating ground loop risks between channels. This simplifies layout versus two separate diodes but requires careful ground plane design-pin 3 must connect to the same low-impedance ground region used by the protected IC's ground pin to avoid ground bounce during clamping.
Is PESD27VU2BT-QR compatible with lead-free reflow profiles per J-STD-020?
Yes-PESD27VU2BT-QR is qualified for standard lead-free reflow with peak temperature up to 260 °C (per JEDEC J-STD-020). The SOT23 package uses matte tin termination and passes MSL1 classification; recommended profile includes ramp rate ≤3 °C/s, soak at 150–200 °C for 60–120 s, and peak at 235–260 °C for ≤60 s.
PESD27VU2BT-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:
- 45V
- Current - Peak Pulse (10/1000µs):
- 1.8A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 3.6pF @ 1MHz
- Operating Temperature:
- -55°C ~ 175°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD27VU2BT-QR FAQ
1.How can I place an order for PESD27VU2BT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD27VU2BT-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 PESD27VU2BT-QR reliable?
The price and inventory of PESD27VU2BT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD27VU2BT-QR is usually 5 days.
3.What payment methods are accepted for PESD27VU2BT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD27VU2BT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD27VU2BT-QR?
PESD27VU2BT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD27VU2BT-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 PESD27VU2BT-QR?
For technical support, including PESD27VU2BT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD27VU2BT-QR requirements.
6.How does Aetrix verify that PESD27VU2BT-QR is sourced from the original manufacturer or authorized distributors?
All PESD27VU2BT-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 PESD27VU2BT-QR meets industry standards.
7.What is the process for return or replacement of PESD27VU2BT-QR?
All PESD27VU2BT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD27VU2BT-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 PESD27VU2BT-QR part is unused and in its original packaging.
Return procedure for PESD27VU2BT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD27VU2BT-QR Tags
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