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Nexperia USA Inc. PESD15VS1UB-QF
- Part No.:
- PESD15VS1UB-QF
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
PESD15VS1UB-QF.pdf
- Description:
- PESD15VS1UB-Q/SOD523/SC-79
- Quantity:
- Payment:
- Shipping:
Inventory:2,291
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Product details
Overview
PESD15VS1UB-QF from Nexperia is a unidirectional ESD protection diode in SOD523 (SC-79) package, designed to protect single data lines against IEC 61000-4-2 ESD (±30 kV contact), IEC 61000-4-5 surge (5 A, 8/20 µs), and transients. It features 15 V reverse standoff voltage, 40 V clamping at 5 A, and 32 pF typical capacitance - ideal for CAN bus and high-speed signal line protection in automotive ECUs.
For engineers reviewing the PESD15VS1UB-QF datasheet, PESD15VS1UB-QF pinout, PESD15VS1UB-QF application, or PESD15VS1UB-QF equivalent, key selection criteria include clamping voltage under 5 A surge, sub-70 pF capacitance for signal integrity, AEC-Q101 qualification, and SOD523 footprint compatibility with space-constrained PCB layouts.
Technical Context
This device operates as a unidirectional transient voltage suppression (TVS) diode with avalanche breakdown at 17.6–18.4 V and low dynamic impedance (225 Ω). Its clamping behavior is characterized under standardized 8/20 µs surge pulses and 150 pF/330 Ω ESD network waveforms.
The diode exhibits <1 nA leakage at 15 V and maintains stable capacitance (32–70 pF) across 0–15 V reverse bias, enabling reliable protection of bidirectional or polarity-fixed signal lines without distorting high-frequency content.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 15 V - Maximum continuous operating voltage before conduction begins; defines safe signal swing range. |
| Clamping Voltage | 40 V at 5 A - Peak voltage seen by protected circuit during worst-case 8/20 µs surge; limits stress on downstream ICs. |
| ESD Rating | ±30 kV per IEC 61000-4-2 - Withstands 10 contact-discharge pulses without degradation; suitable for exposed connectors. |
| Diode Capacitance | 32 pF (typ), 70 pF (max) at 1 MHz - Low enough for CAN FD (≤5 Mbps) and USB 2.0 signal integrity; avoids signal rise-time degradation. |
| Peak Pulse Power | 160 W at 8/20 µs - Sustains transient energy without thermal failure; validated per IEC 61000-4-5 Level 3. |
| Junction Temperature | −55 °C to +150 °C - Enables operation in under-hood automotive environments and industrial control enclosures. |
Pinout & Package
Package: SOD523 (SC-79), surface-mount plastic package measuring 1.2 mm × 0.8 mm × 0.6 mm; cathode marked by bar on end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to ground or low-impedance return path; defines unidirectional conduction direction (anode → cathode during surge). |
| 2 (A) | Anode | Connected to protected line; conducts transient current to ground when line voltage exceeds VRWM + VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional Protection | Enables robust clamping on positive-polarity signal lines (e.g., CAN_H) without forward-biasing during normal operation. |
| AEC-Q101 Qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress - supports Tier-1 ECU qualification requirements. |
| Low Clamping Voltage | 40 V at 5 A ensures protected ICs (e.g., CAN transceivers rated to 40 V abs max) remain within safe operating area during surge events. |
| Compact SOD523 Footprint | Minimizes PCB real estate and parasitic inductance - critical for effective ESD suppression near connectors and high-speed interfaces. |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in body control modules against ESD from service port connections and cable harness coupling. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed directly at connector entry point to clamp transients before reaching CAN transceiver. Use Value: Prevents latch-up or permanent damage to TJA1042/TJA1051 transceivers during ±8 kV contact ESD events per ISO 10605. | Use Scenario: Shielding D+ and D− lines in automotive infotainment USB ports from user-hand ESD and hot-plug surges. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp maintaining signal edge integrity up to 480 Mbps while meeting IEC 61000-4-2 Level 4. Use Value: Ensures plug-and-play reliability without bit errors or enumeration failures caused by transient-induced jitter or overshoot. |
| Industrial Sensor Interface Protection | Audio Line Input Protection |
Use Scenario: Safeguarding analog sensor outputs (e.g., 4–20 mA loop or RS-485 differential pairs) in factory automation gateways. IC Role / Device Role / Timing Role: Single-line unidirectional protector on signal return path to suppress common-mode surges induced by motor switching or lightning. Use Value: Maintains measurement accuracy by limiting transient-induced offset shift and preventing ADC input saturation. | Use Scenario: Protecting line-in inputs of automotive head units from ESD during auxiliary cable insertion or panel button actuation. IC Role / Device Role / Timing Role: Low-leakage (<50 nA) diode preserving DC bias stability of op-amp input stages while clamping fast transients. Use Value: Eliminates audible pop/crackle during hot-plug events and prevents op-amp rail-to-rail latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Quad-channel, 15 V VRWM, 30 pF typical, but larger SOT-563 package (2.2 × 1.35 mm) | Requires board redesign for footprint; better for multi-line protection but less space-efficient per line | Select when protecting ≥2 lines on same net and PCB area allows larger package |
| Vishay VEML6030X01 | Not applicable - this is an ambient light sensor; excluded due to functional mismatch | N/A | Not a valid alternative; omitted from comparison |
Compared with PESD15VS1UB-QF, NUP4105MR6T1G offers multi-line integration at the cost of 2.3× larger footprint and higher layout complexity, whereas PESD15VS1UB-QF delivers optimal per-line protection density and automotive qualification in the smallest standard discrete TVS form factor.
Availability
PESD15VS1UB-QF is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, USB 2.0 peripherals, and audio subsystems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for PESD15VS1UB-QF 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 logic, discrete, and MOSFET devices, with leadership in automotive-grade components.
The PESD15VS1UB-QF belongs to Nexperia's Automotive ESD Protection portfolio, engineered specifically for robust transient immunity in harsh automotive environments while maintaining signal fidelity on high-speed data buses.
FAQ
What is the maximum peak pulse current rating for PESD15VS1UB-QF?
The device is rated for 5 A peak pulse current (IPPM) under IEC 61000-4-5 8/20 µs waveform conditions. This value is validated per absolute maximum ratings and confirmed in the datasheet's Limiting Values table. It reflects single-pulse capability; repetitive pulsing requires derating based on junction temperature curves in Figure 4.
Is PESD15VS1UB-QF suitable for bidirectional signal lines like RS-485?
No - PESD15VS1UB-QF is unidirectional and protects only positive-going transients on a line referenced to ground. For bidirectional lines such as RS-485, a symmetric dual-diode configuration or a dedicated bidirectional TVS (e.g., PESD5V0S1BA) is required to clamp both polarities.
How does the 32 pF typical capacitance affect CAN FD signal integrity?
At 32 pF, the diode adds negligible loading to CAN FD signals up to 5 Mbps: insertion loss remains below 0.5 dB and rise/fall times increase by <5% at 2 Mbps, as verified in Nexperia's application note AN11128. Layout adherence to short trace lengths (<3 mm) ensures compliance with ISO 11898-2 timing budgets.
Does the marking code 'N4' correspond to PESD15VS1UB-QF on the physical device?
Yes - Table 4 of the datasheet explicitly states that PESD15VS1UB-QF is marked with 'N4' on the top surface of the SOD523 package. The marking is laser-etched adjacent to the cathode band (pin 1), and matches Nexperia's standard SOD523 marking convention for this product family.
PESD15VS1UB-QF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V (Max)
- Voltage - Breakdown (Min):
- 17.6V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 160W
- Power Line Protection:
- No
- Applications:
- CAN, Telecom
- Capacitance @ Frequency:
- 32pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
PESD15VS1UB-QF FAQ
1.How can I place an order for PESD15VS1UB-QF through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD15VS1UB-QF 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 PESD15VS1UB-QF reliable?
The price and inventory of PESD15VS1UB-QF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD15VS1UB-QF is usually 5 days.
3.What payment methods are accepted for PESD15VS1UB-QF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD15VS1UB-QF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD15VS1UB-QF?
PESD15VS1UB-QF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD15VS1UB-QF 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 PESD15VS1UB-QF?
For technical support, including PESD15VS1UB-QF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD15VS1UB-QF requirements.
6.How does Aetrix verify that PESD15VS1UB-QF is sourced from the original manufacturer or authorized distributors?
All PESD15VS1UB-QF 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 PESD15VS1UB-QF meets industry standards.
7.What is the process for return or replacement of PESD15VS1UB-QF?
All PESD15VS1UB-QF units undergo pre-shipment inspection (PSI). If there is an issue with PESD15VS1UB-QF, 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 PESD15VS1UB-QF part is unused and in its original packaging.
Return procedure for PESD15VS1UB-QF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD15VS1UB-QF Tags
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Nexperia USA Inc.
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