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Renesas NNCD36ST-T1-AT
- Part No.:
- NNCD36ST-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
NNCD36ST-T1-AT.pdf
- Description:
- NNCD36ST-T1-AT - ELECTROSTATIC D
- Quantity:
- Payment:
- Shipping:
Inventory:6,000
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Product details
Overview
NNCD36ST-T1-AT from Renesas Electronics is an ESD noise clipping diode designed for bidirectional transient voltage suppression on CAN bus lines, featuring a 33–39 V breakdown voltage (VBR), ≤0.1 µA reverse leakage at 27 V, and 9 pF capacitance at 0 V/1 MHz - enabling low-capacitance, high-speed protection in automotive and industrial CAN networks.
For engineers reviewing the NNCD36ST-T1-AT datasheet, NNCD36ST-T1-AT pinout, NNCD36ST-T1-AT application, or NNCD36ST-T1-AT equivalent, key selection criteria include its SC-70 package footprint, ±15 kV IEC61000-4-2 ESD rating, 85 W surge reverse power capability, and suitability for CAN physical layer signal integrity preservation under fast transients.
Technical Context
The NNCD36ST-T1-AT operates as a bidirectional clamping diode with symmetrical positive/negative breakdown characteristics, optimized for CAN bus differential pair protection where low capacitance (<10 pF) minimizes signal distortion at 1 Mbps data rates. Its thermal design supports 200 mW steady-state dissipation on standard 50 mm × 50 mm PCBs.
It complies with IEC61000-4-2 Level 4 (±15 kV contact discharge) and withstands non-repetitive 85 W surge pulses (tT = 10 µs), making it suitable for harsh electromagnetic environments typical in automotive body control modules and industrial fieldbus nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 33–39 V (clamps transients above CAN common-mode range without interfering with 2.5–3.5 V logic levels) |
| Capacitance | 9 pF at 0 V, 1 MHz (preserves signal edge integrity in high-speed CAN FD applications) |
| ESD Rating | ±15 kV per IEC61000-4-2 (meets automotive OEM requirements for connector-level ESD immunity) |
| Surge Power | 85 W (10 µs pulse; handles load dump and inductive switching spikes on vehicle networks) |
| Reverse Leakage | ≤0.1 µA at 27 V (minimizes standby current impact on CAN bias networks) |
| Package | SC-70 (3-pin Super Mini Mold; enables 1.25 mm × 2.1 mm board area, compatible with automated SMT assembly) |
Pinout & Package
Supplied in a Pb-free, pure tin-plated 3-pin SC-70 (Super Mini Mold) package with gull-wing leads, optimized for high-density CAN transceiver interface layouts and reflow-compatible mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode (Cathode of internal negative clamp) | Connects to CAN_H line; forms one side of bidirectional clamping path |
| 2 | Common Cathode/Anode Node | Internal connection point between two anti-series diodes; ties to ground reference plane |
| 3 | Cathode (Anode of internal negative clamp) | Connects to CAN_L line; completes symmetric clamping structure across differential pair |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Clamping | Equal positive/negative VBR symmetry ensures consistent protection on both CAN_H and CAN_L against polarity-reversed transients |
| Low Capacitance | 9 pF enables use in 500 kbps–1 Mbps CAN systems without measurable rise-time degradation |
| IEC61000-4-2 Compliance | Rated for ±15 kV contact discharge - satisfies Tier-1 automotive ESD test plans without external filtering |
| SC-70 Footprint | 1.25 mm × 2.1 mm outline allows placement adjacent to CAN transceiver ICs with minimal trace length |
Applications
| Automotive Body Control Module | Industrial CAN Gateway |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L lines in door module ECUs exposed to cable harness ESD events during service or assembly. IC Role / Device Role / Timing Role: Standalone ESD suppressor placed directly at connector entry point before CAN transceiver input. Use Value: Prevents latch-up or damage to ISO 11898-compliant transceivers while maintaining <1 ns added propagation delay. | Use Scenario: Shielding multi-protocol gateway interfaces connecting CANopen devices to higher-layer networks in factory automation. IC Role / Device Role / Timing Role: Differential-line protector co-located with isolated CAN transceivers on DIN-rail mounted controllers. Use Value: Ensures uninterrupted communication during 2 kV surge tests per IEC 61000-4-5, preserving network uptime. |
| Off-Highway Vehicle Telematics | Medical Diagnostic Equipment CAN Bus |
Use Scenario: Securing J1939 data links in GPS/tracking units mounted on construction equipment subject to engine cranking noise. IC Role / Device Role / Timing Role: Low-leakage transient suppressor integrated into CAN PHY front-end with 27 V standoff. Use Value: Blocks 85 W surges from alternator ripple without loading 12 V bias resistors in split-termination networks. | Use Scenario: Safeguarding CAN-based sensor interconnects in portable ultrasound machines requiring Class B EMC compliance. IC Role / Device Role / Timing Role: ESD guard component on medical-grade CAN bus traces routed near touchscreens and battery compartments. Use Value: Delivers ±15 kV ESD immunity without violating 10 pF maximum capacitance limit for FDA-cleared signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Lower VBR (5.5–7.5 V), higher Ct (15 pF), dual-channel layout | Targeted at USB/low-voltage I/O; insufficient standoff for 27 V CAN common-mode | Select only if protecting sub-5 V buses; not suitable for direct CAN_H/L placement |
| ESDALC6V1-1U2 | Same VBR range (30–40 V), lower surge rating (30 W), 12 pF capacitance | Qualified per AEC-Q200; rated for 125°C operation but lacks 85 W pulse handling | Prefer for extended temperature designs where peak surge energy is limited to ≤30 W |
Compared with TPD2E001DRYR and ESDALC6V1-1U2, the NNCD36ST-T1-AT uniquely balances 33–39 V standoff, 9 pF capacitance, and 85 W surge capacity - making it the only option among the three validated for full IEC61000-4-2 Level 4 and ISO 16750-2 load-dump robustness in CAN physical layer protection.
Availability
NNCD36ST-T1-AT is available at Aetrix Electronics and suitable for automotive body electronics, industrial fieldbus gateways, and off-highway telematics requiring stable component supply with guaranteed Pb-free compliance and SC-70 packaging.
Supply support for NNCD36ST-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 from the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power solutions for automotive, industrial, and IoT markets.
The NNCD36ST-T1-AT belongs to Renesas' legacy ESD noise clipping diode family, engineered specifically for CAN bus physical layer protection in "Standard" grade applications including automotive body electronics and industrial control networks.
FAQ
What is the primary function of the NNCD36ST-T1-AT in a CAN bus system?
The NNCD36ST-T1-AT functions as a bidirectional ESD noise clipping diode that clamps transient overvoltages on CAN_H and CAN_L lines. It protects downstream CAN transceivers from electrostatic discharge and surge events by activating at 33–39 V while maintaining low 9 pF capacitance to avoid signal integrity degradation. Its design ensures reliable operation in automotive and industrial CAN networks where robustness against ±15 kV ESD is required.
Does the NNCD36ST-T1-AT meet automotive ESD standards?
Yes, the NNCD36ST-T1-AT complies with IEC61000-4-2 up to ±15 kV contact discharge, satisfying Level 4 requirements commonly mandated for automotive electronic control units. This certification is confirmed in the original Renesas datasheet D18881EJ1V0DS00 and applies directly to the NNCD36ST-T1-AT variant, making it suitable for CAN bus protection in body control modules and telematics units without additional external filtering.
What is the maximum surge power rating for the NNCD36ST-T1-AT?
The NNCD36ST-T1-AT has a non-repetitive surge reverse power rating of 85 W at a 10 µs pulse width, as specified in the Absolute Maximum Ratings table of its datasheet. This value reflects its ability to absorb high-energy transients such as those induced by load dump or inductive switching in vehicle electrical systems - a critical parameter distinguishing it from lower-rated alternatives like the ESDALC6V1-1U2.
Can the NNCD36ST-T1-AT be used in place of the NNCD18ST-T1-AT?
No - the NNCD36ST-T1-AT is not a drop-in replacement for the NNCD18ST-T1-AT due to differing breakdown voltage ranges (33–39 V vs. 16–20 V) and application scope. The NNCD18ST-T1-AT targets lower-voltage CAN variants or LIN bus protection, whereas the NNCD36ST-T1-AT is engineered for full 27 V common-mode CAN systems. Substitution would risk premature clamping or inadequate protection depending on bus voltage margins.
Is the NNCD36ST-T1-AT RoHS compliant and lead-free?
Yes, the NNCD36ST-T1-AT is Pb-free, with pure tin (Sn) lead plating on all external electrodes as stated in the Ordering Information section of the Renesas datasheet. It meets RoHS Directive 2011/65/EU requirements and carries the "Note Pb-free" designation, confirming absence of lead in both terminations and internal construction - essential for compliance in automotive and industrial manufacturing environments.
NNCD36ST-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-T1-AT FAQ
1.How can I place an order for NNCD36ST-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD36ST-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-T1-AT reliable?
The price and inventory of NNCD36ST-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-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD36ST-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD36ST-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD36ST-T1-AT?
NNCD36ST-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD36ST-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-T1-AT?
For technical support, including NNCD36ST-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD36ST-T1-AT requirements.
6.How does Aetrix verify that NNCD36ST-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD36ST-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-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD36ST-T1-AT?
All NNCD36ST-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD36ST-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-T1-AT part is unused and in its original packaging.
Return procedure for NNCD36ST-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD36ST-T1-AT Tags
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