Renesas NNCD36ST(0)-T1-AT
- Part No.:
- NNCD36ST(0)-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
NNCD36ST(0)-T1-AT.pdf
- Description:
- NNCD36ST - ZENER DIODES FOR SURG
- Quantity:
- Payment:

- Shipping:

Inventory:9,000
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Product details
Overview
NNCD36ST(0)-T1-AT from Renesas Electronics is an ESD noise clipping diode designed for bidirectional transient voltage suppression on CAN bus lines. It features a 33–39 V breakdown voltage, 9 pF capacitance at 0 V, 0.1 μA reverse leakage at 27 V, 85 W surge reverse power (10 μs pulse), and is housed in a 3-pin SC-70 (Super Mini Mold) package for high-density automotive network protection.
For engineers reviewing the NNCD36ST(0)-T1-AT datasheet, NNCD36ST(0)-T1-AT pinout, NNCD36ST(0)-T1-AT application, or NNCD36ST(0)-T1-AT equivalent, key selection criteria include bidirectional clamping capability, IEC61000-4-2 compliance, low capacitance for CAN signal integrity, SC-70 mountability, and suitability for 12 V/24 V automotive CAN transceiver I/O protection.
Technical Context
The NNCD36ST(0)-T1-AT operates as a bidirectional avalanche diode, clamping both positive and negative transients to protect CAN H and CAN L lines. Its design targets electrostatic discharge events per IEC61000-4-2 Level 4 (±15 kV contact, ±25 kV air), with a 33–39 V breakdown range ensuring robust margin above nominal CAN common-mode voltage.
It delivers 85 W peak surge power under 10 μs unidirectional pulses and maintains only 9 pF junction capacitance at 0 V - critical for preserving CAN FD signal rise/fall times and minimizing bit error rate in high-speed networks up to 5 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 33–39 V (clamps transients above system operating voltage while avoiding false triggering during normal CAN differential swing) |
| Junction Capacitance (Ct) | 9 pF at 0 V, 1 MHz (low enough to avoid signal distortion in CAN FD applications up to 5 Mbps) |
| Reverse Leakage Current (IR) | ≤0.1 μA at 27 V (minimizes standby current draw on protected bus lines) |
| Surge Reverse Power (PRSM) | 85 W, tT = 10 μs (handles ISO 7637-2 pulse 1/2b/3a-induced surges without degradation) |
| ESD Withstand Voltage | ±15 kV contact, ±25 kV air (IEC61000-4-2 Level 4 compliant for automotive ECU interfaces) |
| Package | SC-70 (3-pin Super Mini Mold, 2.1 × 1.25 × 0.9 mm) - enables PCB space savings in tight CAN node layouts |
Pinout & Package
Package: SC-70 (3-pin Super Mini Mold), dimensions 2.1 ± 0.1 mm × 1.25 ± 0.1 mm × 0.9 ± 0.1 mm, lead-free pure Sn plating, tape-and-reel (3000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (A1) | Connects to CAN H line; forms one half of symmetrical bidirectional clamp path |
| 2 | Cathode (K) | Common terminal tied to ground or chassis reference; center pin for balanced clamping |
| 3 | Anode (A2) | Connects to CAN L line; completes symmetrical dual-anode configuration for differential bus protection |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Equal positive/negative breakdown symmetry ensures consistent protection for both CAN H and CAN L against polarity-reversed transients |
| Low Capacitance | 9 pF typical at 0 V preserves signal integrity in high-speed CAN FD networks without degrading edge rates |
| IEC61000-4-2 Compliance | Rated for ±15 kV contact and ±25 kV air discharge - meets automotive OEM ESD immunity requirements |
| High Surge Robustness | 85 W peak surge power (10 μs) withstands repetitive load dump and inductive switching events in vehicle subsystems |
Applications
| Automotive CAN Bus Node Protection | Industrial CANopen Network Interface |
|---|---|
Use Scenario: Protecting microcontroller CAN transceivers in engine control units, body control modules, and ADAS ECUs from ESD and load-dump induced transients. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at CAN H/CAN L I/O pins of physical layer transceivers. Use Value: Prevents latch-up or permanent damage to CAN PHY ICs while maintaining <5 Mbps signal fidelity via 9 pF capacitance. | Use Scenario: Securing fieldbus communications in factory automation PLCs, motor drives, and sensor nodes exposed to industrial ESD and switching noise. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp on CANopen differential pair, mounted adjacent to connector entry points. Use Value: Enables reliable operation in harsh environments without compromising bus timing margins or requiring additional filtering. |
| Commercial Vehicle J1939 Data Link | Off-Highway Equipment CAN Gateway |
Use Scenario: Safeguarding J1939-compliant telematics gateways and diagnostic ports in trucks, buses, and construction equipment. IC Role / Device Role / Timing Role: Primary ESD protection element on 24 V CAN bus interface, rated for extended temperature and vibration stress. Use Value: Maintains compliance with SAE J1113-13 ESD testing while supporting long-term reliability in mobile hydraulic and powertrain systems. | Use Scenario: Hardening CAN gateway modules in agricultural, mining, and forestry machinery subject to severe EMC stress and thermal cycling. IC Role / Device Role / Timing Role: Front-line transient suppressor between ruggedized CAN connectors and isolated signal conditioning circuitry. Use Value: Delivers 85 W surge handling and −55°C to +150°C storage range for continuous operation in uncontrolled ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | 2-channel, 15 pF per line, ±12 kV IEC61000-4-2, 5 V working voltage | Lower clamping voltage; suited for 3.3 V/5 V logic-level interfaces, not 12 V/24 V CAN bus | Select when protecting low-voltage UART/I²C, not automotive CAN physical layer |
| SM712-TR | Bi-directional, 12 V standoff, 100 W surge, 200 pF capacitance | Higher capacitance limits use to low-speed CAN (≤125 kbps); better for RS-485 or legacy CAN | Prefer for cost-sensitive 125 kbps industrial CAN where signal integrity is less critical |
Compared with TPD2E001DRYR and SM712-TR, the NNCD36ST(0)-T1-AT uniquely balances 33–39 V breakdown, 9 pF capacitance, and 85 W surge rating - making it specifically optimized for high-speed, 12 V/24 V automotive CAN FD and J1939 implementations where low parasitic loading and robust transient immunity are simultaneously required.
Availability
NNCD36ST(0)-T1-AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial CANopen node development, and commercial vehicle J1939 gateway integration requiring stable component supply and long-lifecycle support.
Supply support for NNCD36ST(0)-T1-AT 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
Renesas Electronics Corporation is a global semiconductor manufacturer formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, power, and interface solutions for automotive, industrial, and IoT markets.
The NNCD36ST(0)-T1-AT belongs to Renesas' legacy ESD protection diode family targeting CAN bus physical layer hardening, developed to meet stringent automotive EMC requirements including IEC61000-4-2 and ISO 7637-2.
FAQ
What is the primary function of the NNCD36ST(0)-T1-AT in a CAN bus system?
The NNCD36ST(0)-T1-AT serves as a bidirectional ESD noise clipping diode that clamps transient overvoltages on both CAN H and CAN L lines. It protects downstream CAN transceivers from electrostatic discharge and surge events by diverting excess energy to ground, with a 33–39 V breakdown range tailored for 12 V/24 V automotive networks. Its 9 pF capacitance ensures minimal impact on signal integrity in high-speed CAN FD applications.
Does the NNCD36ST(0)-T1-AT meet IEC61000-4-2 Level 4 ESD requirements?
Yes, the NNCD36ST(0)-T1-AT is specified to withstand ±15 kV contact discharge and ±25 kV air discharge per IEC61000-4-2 Level 4. This compliance is confirmed in the original Renesas datasheet D18881EJ1V0DS00 and makes the device suitable for front-end ESD protection in automotive ECUs and industrial CAN nodes where rigorous immunity testing is mandated.
What is the maximum surge power rating of the NNCD36ST(0)-T1-AT and under what test condition?
The NNCD36ST(0)-T1-AT has a surge reverse power rating of 85 W under a single 10 μs pulse (non-repetitive), as defined in Figure 4 of its datasheet. This rating applies to unidirectional reverse polarity surges and reflects the device's ability to absorb transient energy from sources such as load dump or inductive switching without failure.
Can the NNCD36ST(0)-T1-AT be used in CAN FD networks operating at 5 Mbps?
Yes, the NNCD36ST(0)-T1-AT is appropriate for CAN FD networks up to 5 Mbps due to its low 9 pF junction capacitance at 0 V and symmetrical bidirectional clamping. These characteristics minimize signal distortion and preserve edge rates required for high-speed bit timing, unlike higher-capacitance alternatives that degrade eye diagrams and increase bit error rates.
What package type and mounting footprint does the NNCD36ST(0)-T1-AT use?
The NNCD36ST(0)-T1-AT uses the SC-70 (Super Mini Mold) package - a 3-pin surface-mount outline measuring 2.1 × 1.25 × 0.9 mm. Its recommended mount pad layout is provided in the datasheet, with 0.65 mm pitch between pins 1–2 and 2–3, enabling high-density placement near CAN connectors or transceiver ICs on compact automotive PCBs.
NNCD36ST(0)-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 27V (Max)
- Voltage - Breakdown (Min):
- 33V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- CAN
- Capacitance @ Frequency:
- 9pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
NNCD36ST(0)-T1-AT FAQ
1.How can I place an order for NNCD36ST(0)-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD36ST(0)-T1-AT 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 NNCD36ST(0)-T1-AT reliable?
The price and inventory of NNCD36ST(0)-T1-AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NNCD36ST(0)-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD36ST(0)-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD36ST(0)-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD36ST(0)-T1-AT?
NNCD36ST(0)-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD36ST(0)-T1-AT 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 NNCD36ST(0)-T1-AT?
For technical support, including NNCD36ST(0)-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD36ST(0)-T1-AT requirements.
6.How does Aetrix verify that NNCD36ST(0)-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD36ST(0)-T1-AT 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 NNCD36ST(0)-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD36ST(0)-T1-AT?
All NNCD36ST(0)-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD36ST(0)-T1-AT, 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 NNCD36ST(0)-T1-AT part is unused and in its original packaging.
Return procedure for NNCD36ST(0)-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD36ST(0)-T1-AT Tags

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