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Renesas NNCD3.3DA-T1-AT
- Part No.:
- NNCD3.3DA-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
NNCD3.3DA-T1-AT.pdf
- Description:
- NNCD3.3DA-T1-AT - ELECTROSTATIC
- Quantity:
- Payment:
- Shipping:
Inventory:41,554
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Product details
Overview
NNCD3.3DA-T1-AT from Renesas Electronics is an ESD noise clipping diode designed for transient voltage suppression in external interface circuits. It features a 3.1–3.5 V breakdown voltage (VBR), 130 Ω dynamic impedance (ZZ), 1.0 μA reverse leakage at 1.0 V, 220 pF capacitance at 1 MHz, and 30 kV ESD immunity per IEC61000-4-2 - deployed in USB, audio jack, and HDMI port protection.
For engineers reviewing the NNCD3.3DA-T1-AT datasheet, NNCD3.3DA-T1-AT pinout, NNCD3.3DA-T1-AT application, or NNCD3.3DA-T1-AT equivalent, key selection criteria include clamping voltage margin, low capacitance for high-speed signal integrity, surge power handling (85 W), SC-76 package footprint compatibility, and Pb-free lead plating compliance.
Technical Context
This device operates as a unidirectional silicon clamping diode optimized for electrostatic discharge protection on low-voltage data lines. Its low 3.3 V nominal breakdown enables early conduction before IC-level damage thresholds are exceeded, while its 220 pF junction capacitance balances ESD robustness with minimal signal distortion in sub-100 Mbps interfaces.
The diode is rated for 85 W non-repetitive surge reverse power (tT = 10 μs), 200 mW steady-state power dissipation on standard FR-4 PCB, and operates across −55°C to +150°C storage temperature range - confirming suitability for consumer and industrial ambient environments without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 3.1–3.5 V @ 5 mA - defines precise clamping onset point to protect 3.3 V logic rails |
| Dynamic Impedance (ZZ) | 130 Ω @ 5 mA - determines voltage overshoot during fast ESD transients (lower = tighter clamping) |
| Capacitance (Ct) | 220 pF @ 1 MHz, 0 V - limits signal rise-time degradation in USB 1.1/2.0 and analog audio paths |
| ESD Withstand | ±30 kV contact discharge per IEC61000-4-2 - exceeds Level 4 immunity requirement for end-equipment certification |
| Surge Power (PRSM) | 85 W @ 10 μs pulse - sustains single-event energy without thermal runaway on typical PCB layouts |
| Reverse Leakage (IR) | ≤1.0 μA @ 1.0 V - ensures negligible standby current in always-on interface circuits |
Pinout & Package
Package: 2-pin Super Mini Mold (SC-76), dimensions 2.5 ± 0.15 mm × 1.7 ± 0.1 mm × 1.25 ± 0.1 mm, cathode indicated by marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Signal input / protected line connection | Connected to I/O trace upstream of protected IC; conducts surge current toward ground when reverse-biased |
| Cathode | Ground reference / clamp return path | Must be tied to low-inductance system ground plane to minimize clamping voltage overshoot during ESD events |
Key Features
| Feature | Design Value |
|---|---|
| IEC61000-4-2 certified ESD protection | Validated ±30 kV contact discharge performance - eliminates need for external test validation in end-product qualification |
| Low-clamp-voltage architecture | 3.3 V nominal VBR ensures clamping occurs below 3.63 V (110% of 3.3 V rail), preventing overvoltage damage to downstream 3.3 V logic |
| SC-76 surface-mount package | 1.7 mm width enables dense routing in space-constrained ports (e.g., mini-USB, micro-HDMI) without sacrificing thermal mass |
| Pb-free lead finish | Pure Sn (Tin) plating meets RoHS Directive 2011/65/EU and JEDEC J-STD-609A Class 1 moisture sensitivity requirements |
Applications
| USB 2.0 Data Lines | Audio Jack ESD Protection |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 connectors against human-body-model ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Clamping diode placed between signal line and chassis ground, conducting transient current away from USB transceiver IC. Use Value: 220 pF capacitance avoids signal integrity degradation at 480 Mbps; 30 kV rating ensures pass-fail compliance in USB-IF interoperability testing. | Use Scenario: Shielding 3.5 mm stereo headphone/mic jack contacts from ESD during user plug/unplug cycles in portable media players. IC Role / Device Role / Timing Role: Unidirectional shunt element connected from tip/ring/sleeve to ground, clamping fast-rising transients before reaching codec or amplifier inputs. Use Value: Low 1.0 μA leakage prevents DC offset in analog audio paths; 3.3 V VBR aligns with common codec supply rails for safe margin. |
| HDMI Hot-Plug Detection Line | Industrial Serial Interface (RS-232) |
Use Scenario: Safeguarding the HDMI HPD (Hot-Plug Detect) pin against ESD during display cable mating in digital signage systems. IC Role / Device Role / Timing Role: Voltage clamp referenced to 3.3 V system ground, limiting HPD line excursion to ≤3.5 V during ±8 kV air discharge events. Use Value: Tight 3.1–3.5 V VBR window guarantees HPD logic-high recognition remains intact while suppressing ESD-induced false triggers. | Use Scenario: Protecting RS-232 driver/receiver pins in programmable logic controllers exposed to field technician handling in factory environments. IC Role / Device Role / Timing Role: Bidirectional protection implemented using two NNCD3.3DA-T1-AT devices (anode-to-ground and cathode-to-ground) on each signal line. Use Value: 85 W surge rating handles repetitive industrial ESD exposure; SC-76 footprint allows dual-diode layout within 5 mm² PCB area per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | 0.65 pF capacitance, 5.5 V VBR, 1-channel dual-diode array in SOT-553 | Better suited for high-speed USB 3.0/PCIe where <1 pF is mandatory; higher VBR unsuitable for 3.3 V rail protection | Select TPD2E001DRYR only if signal bandwidth exceeds 5 GHz and system rail is ≥5 V. |
| ESD9X3.3SCT5G | 3.3 V VBR, 120 pF, SOD-923 package (1.0 × 0.6 mm), 25 kV IEC61000-4-2 rating | Smaller footprint and lower capacitance than NNCD3.3DA-T1-AT but lower ESD rating - insufficient for full Level 4 compliance | Choose ESD9X3.3SCT5G only for cost-sensitive consumer designs where 25 kV suffices and board space is critical. |
Compared with TPD2E001DRYR and ESD9X3.3SCT5G, the NNCD3.3DA-T1-AT delivers superior 30 kV ESD immunity and proven 3.3 V rail compatibility at the expense of higher capacitance - making it optimal for cost-effective, standards-compliant protection of legacy high-speed interfaces.
Availability
NNCD3.3DA-T1-AT is available at Aetrix Electronics and suitable for USB 2.0 port protection, audio jack ESD hardening, and HDMI hot-plug detection circuits requiring stable component supply across production lifecycles.
Supply support for NNCD3.3DA-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.
The NNCD series belongs to Renesas' dedicated ESD protection diode product line, engineered specifically for IEC61000-4-2 compliance in consumer and industrial interface circuits with tight voltage-margin constraints.
FAQ
What is the maximum operating temperature for the NNCD3.3DA-T1-AT?
The NNCD3.3DA-T1-AT has a maximum junction temperature (Tj) of 150°C and a storage temperature range of −55°C to +150°C. Its thermal performance is validated on a standard 30 mm × 30 mm × 1.6 mm FR-4 PCB, supporting reliable operation in industrial ambient conditions without forced cooling. The NNCD3.3DA-T1-AT maintains specified electrical characteristics within this full range.
Does the NNCD3.3DA-T1-AT meet RoHS requirements?
Yes, the NNCD3.3DA-T1-AT uses pure Sn (Tin) lead plating and contains no Pb in external electrodes or other parts, fully complying with EU RoHS Directive 2011/65/EU. This Pb-free construction is explicitly stated in the ordering information section of the original NEC/Renesas datasheet D18879EJ2V0DS.
Can the NNCD3.3DA-T1-AT be used for bidirectional ESD protection?
No - the NNCD3.3DA-T1-AT is a unidirectional diode. For bidirectional protection, two units must be configured in series opposition (anode-to-anode or cathode-to-cathode). This configuration is documented in Renesas' sample application circuit for parallel interface protection and achieves ±30 kV immunity on both polarities.
What is the capacitance value of the NNCD3.3DA-T1-AT and how does it affect signal integrity?
The NNCD3.3DA-T1-AT has a typical junction capacitance (Ct) of 220 pF measured at 1 MHz and 0 V bias. This value is appropriate for USB 2.0 (480 Mbps), analog audio, and HDMI HPD lines, where bandwidth requirements are ≤100 MHz. For higher-speed interfaces like USB 3.0, lower-capacitance alternatives should be considered. The NNCD3.3DA-T1-AT's capacitance is a deliberate trade-off enabling robust 30 kV ESD protection.
Is the NNCD3.3DA-T1-AT suitable for automotive applications?
The NNCD3.3DA-T1-AT is classified as a "Standard" quality grade device per Renesas documentation, intended for computers, office equipment, and consumer electronics - not automotive-grade systems. It lacks AEC-Q200 qualification, extended temperature screening, or zero-defect manufacturing controls required for automotive use. For automotive infotainment interfaces, Renesas' "High Quality" grade ESD suppressors should be selected instead of the NNCD3.3DA-T1-AT.
NNCD3.3DA-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 1V (Max)
- Voltage - Breakdown (Min):
- 3.1V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 220pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Super Mini Mold
NNCD3.3DA-T1-AT FAQ
1.How can I place an order for NNCD3.3DA-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD3.3DA-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 NNCD3.3DA-T1-AT reliable?
The price and inventory of NNCD3.3DA-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 NNCD3.3DA-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD3.3DA-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD3.3DA-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD3.3DA-T1-AT?
NNCD3.3DA-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD3.3DA-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 NNCD3.3DA-T1-AT?
For technical support, including NNCD3.3DA-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD3.3DA-T1-AT requirements.
6.How does Aetrix verify that NNCD3.3DA-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD3.3DA-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 NNCD3.3DA-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD3.3DA-T1-AT?
All NNCD3.3DA-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD3.3DA-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 NNCD3.3DA-T1-AT part is unused and in its original packaging.
Return procedure for NNCD3.3DA-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD3.3DA-T1-AT Tags
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DESD3V3E1BL-7B
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Nexperia USA Inc.
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Diodes Incorporated
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