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Renesas NNCD20DT-T1-AT
- Part No.:
- NNCD20DT-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
NNCD20DT-T1-AT.pdf
- Description:
- NNCD20DT-T1-AT - ELECTROSTATIC D
- Quantity:
- Payment:
- Shipping:
Inventory:26,002
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Product details
Overview
NNCD20DT-T1-AT from Renesas Electronics is an ESD noise clipping diode designed for bidirectional transient suppression on LIN bus lines. It features a breakdown voltage of 18–22 V, 14 pF typical capacitance at 1 MHz, 85 W surge reverse power rating (10 μs pulse), 200 mW steady-state power dissipation, and complies with IEC61000-4-2 ESD immunity standards. It is used in automotive LIN transceiver protection circuits.
For engineers reviewing the NNCD20DT-T1-AT datasheet, NNCD20DT-T1-AT pinout, NNCD20DT-T1-AT application, or NNCD20DT-T1-AT equivalent, key selection criteria include bidirectional clamping voltage window, low 14 pF capacitance for minimal signal distortion on 20 kbps LIN bus, SC-76 package compatibility with high-density PCB layouts, and verified 30 kV contact ESD performance per IEC61000-4-2.
Technical Context
The NNCD20DT-T1-AT operates as a dual-directional Zener-type transient voltage suppressor, leveraging avalanche breakdown to clamp both positive and negative transients. Its 18–22 V VBR range ensures reliable triggering above normal LIN bus operating voltage (typically 12 V) while avoiding false triggering during load-dump or battery-transient events.
It delivers 85 W peak surge power handling under 10 μs unidirectional pulses and maintains ≤0.1 μA reverse leakage at 13 V, enabling low standby current in always-on LIN nodes. The device is qualified for automotive-grade ambient operation up to +125°C and junction temperatures up to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 18–22 V - Clamps transients above nominal LIN bus voltage without interfering with 12 V signaling |
| Capacitance | 14 pF @ 1 MHz - Minimizes signal rise-time degradation on 20 kbps LIN bus |
| Surge Reverse Power | 85 W @ 10 μs - Withstands ISO 7637-2 Pulse 1/2a-induced surges in automotive environments |
| ESD Rating | ±30 kV contact per IEC61000-4-2 - Meets automotive ESD immunity requirements for LIN physical layer |
| Power Dissipation | 200 mW - Sustains continuous thermal load on standard 50 mm × 50 mm × 1.6 mm FR-4 PCB |
| Package | SC-76 (2-pin Super Mini Mold) - Enables 0.9 mm pitch, high-density placement near LIN transceivers |
Pinout & Package
Package: SC-76 (2-pin Super Mini Mold), dimensions 2.5 ± 0.15 mm × 1.7 ± 0.1 mm × 0.3 ± 0.05 mm, lead-free pure Sn plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to LIN bus line; forms cathode-to-ground path for negative transients |
| 2 | Cathode | Connected to ground; forms anode-to-ground path for positive transients via internal Zener structure |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Simultaneous suppression of ± transients without external polarity configuration |
| Low dynamic capacitance | 14 pF preserves LIN bus signal integrity at 20 kbps without edge rounding or timing skew |
| IEC61000-4-2 compliance | Validated 30 kV contact discharge performance eliminates need for additional ESD staging |
| High surge power density | 85 W in SC-76 package enables compact placement directly at connector or transceiver I/O |
Applications
| Automotive LIN Node Protection | LIN Transceiver I/O Clamp |
|---|---|
Use Scenario: Protecting LIN slave nodes (e.g., door modules, seat controllers) from ESD events during service or assembly. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between LIN bus line and ground, adjacent to transceiver input. Use Value: Prevents latch-up or damage to LIN transceivers during ±30 kV contact ESD events while adding only 14 pF loading. | Use Scenario: Shielding LIN master transceivers from induced surges in body control modules. IC Role / Device Role / Timing Role: Low-capacitance clamping diode integrated into transceiver reference design layout. Use Value: Maintains LIN bus timing margin by limiting added capacitance to 14 pF, ensuring <1% bit error rate at 20 kbps. |
| Body Electronics ESD Guard | Chassis Ground-Referenced Surge Absorption |
Use Scenario: ESD protection for LIN-connected sensors (e.g., rain/light sensors) mounted on vehicle exterior panels. IC Role / Device Role / Timing Role: First-line defense against human-body-model discharges entering via exposed harness connectors. Use Value: Achieves full IEC61000-4-2 Level 4 compliance (±30 kV contact) without increasing PCB area beyond SC-76 footprint. | Use Scenario: Suppressing coupled transients from nearby 12 V power switching (e.g., window lift motors) onto LIN wiring. IC Role / Device Role / Timing Role: Ground-referenced surge absorber diverting energy from LIN bus to chassis ground plane. Use Value: Handles 85 W surge pulses (10 μs) without degradation, preserving signal fidelity during simultaneous power actuation. |
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 12 pF capacitance but lower 30 W surge rating; single-channel, same SC-70 package | Targeted at USB/low-speed data lines, not validated for LIN bus ESD stress profiles | Preferable only if system-level ESD testing shows margin beyond 30 kV and surge energy remains below 30 W |
| ESD9X5.0ST5G | 5.0 V breakdown, higher 20 pF capacitance, 100 W surge rating; same SC-76 footprint | Designed for 5 V logic rails, not optimized for 12 V LIN bus clamping window | Acceptable only with revised clamping threshold analysis and validation of false-trigger immunity at 12 V bus swing |
Compared with TPD2E001DRYR and ESD9X5.0ST5G, the NNCD20DT-T1-AT provides the optimal balance of 18–22 V clamping window, 14 pF capacitance, and 85 W surge capability specifically validated for LIN bus immunity-making it the preferred choice where automotive-grade bidirectional ESD protection at native bus voltage is required.
Availability
NNCD20DT-T1-AT is available at Aetrix Electronics and suitable for automotive body electronics, LIN-based sensor networks, and chassis-mounted control modules requiring stable component supply across extended production lifecycles.
Supply support for NNCD20DT-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, and power devices for automotive and industrial markets.
The NNCD20DT-T1-AT belongs to Renesas' legacy ESD protection diode family developed for automotive LIN bus systems, with design focus on minimizing signal distortion while delivering certified IEC61000-4-2 immunity in space-constrained modules.
FAQ
What is the exact breakdown voltage range specified for NNCD20DT-T1-AT?
The NNCD20DT-T1-AT has a guaranteed breakdown voltage range of 18 V minimum to 22 V maximum at 5 mA test current, measured using a 40 ms pulse per the D18880EJ1V0DS datasheet. This window ensures robust clamping above nominal 12 V LIN bus voltage while preventing premature conduction during normal operation. The NNCD20DT-T1-AT's VBR tolerance supports consistent protection behavior across temperature and unit-to-unit variation.
Does NNCD20DT-T1-AT support bidirectional ESD protection?
Yes, the NNCD20DT-T1-AT is explicitly designed as a bidirectional ESD noise clipping diode, capable of suppressing both positive and negative transients on the LIN bus line. Its internal structure enables symmetrical clamping action between pins 1 (anode) and 2 (cathode), allowing it to protect against contact ESD events of ±30 kV per IEC61000-4-2 without polarity-specific routing. This makes NNCD20DT-T1-AT ideal for unidirectional bus lines like LIN that experience mixed-polarity threats.
What is the capacitance value of NNCD20DT-T1-AT and why does it matter for LIN bus?
The NNCD20DT-T1-AT exhibits 14 pF typical capacitance at 1 MHz and 0 V bias, a value confirmed in the D18880EJ1V0DS datasheet. This low capacitance is critical for LIN bus applications because it minimizes signal edge distortion and timing skew on the 20 kbps serial bus. Higher capacitance would degrade rise/fall times, risking bit errors or synchronization loss-so the NNCD20DT-T1-AT's 14 pF ensures full protocol compliance without requiring layout compensation.
Is NNCD20DT-T1-AT qualified for automotive temperature ranges?
Yes, the NNCD20DT-T1-AT is rated for storage temperatures from −55°C to +150°C and junction temperatures up to +150°C, with recommended operation up to +125°C ambient. These ratings align with AEC-Q200 stress test expectations for passive components in automotive body electronics. The NNCD20DT-T1-AT's thermal performance is validated on standard 50 mm × 50 mm × 1.6 mm FR-4 PCBs, supporting deployment in engine bay-proximate or under-hood LIN nodes where thermal cycling is severe.
What package type does NNCD20DT-T1-AT use and what are its mounting dimensions?
NNCD20DT-T1-AT uses the SC-76 (2-pin Super Mini Mold) package, measuring 2.5 ± 0.15 mm in length, 1.7 ± 0.1 mm in width, and 0.3 ± 0.05 mm in height. Its recommended mount pad layout specifies 0.9 mm pad spacing and 0.8 mm pad width, enabling high-density placement adjacent to LIN transceivers. The NNCD20DT-T1-AT's SC-76 footprint is compatible with standard reflow profiles and supports automated optical inspection due to its defined land pattern.
NNCD20DT-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13V (Max)
- Voltage - Breakdown (Min):
- 18V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 14pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Super Mini Mold
NNCD20DT-T1-AT FAQ
1.How can I place an order for NNCD20DT-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD20DT-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 NNCD20DT-T1-AT reliable?
The price and inventory of NNCD20DT-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 NNCD20DT-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD20DT-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD20DT-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD20DT-T1-AT?
NNCD20DT-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD20DT-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 NNCD20DT-T1-AT?
For technical support, including NNCD20DT-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD20DT-T1-AT requirements.
6.How does Aetrix verify that NNCD20DT-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD20DT-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 NNCD20DT-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD20DT-T1-AT?
All NNCD20DT-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD20DT-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 NNCD20DT-T1-AT part is unused and in its original packaging.
Return procedure for NNCD20DT-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD20DT-T1-AT Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
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Diodes Incorporated
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Nexperia USA Inc.
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Diodes Incorporated
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