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Renesas NNCD20DA(91)-T1-A
- Part No.:
- NNCD20DA(91)-T1-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
NNCD20DA(91)-T1-A.pdf
- Description:
- NNCD20DA(91)-T1-A - ELECTROSTATI
- Quantity:
- Payment:
- Shipping:
Inventory:99,000
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Product details
Overview
NNCD20DA(91)-T1-A from Renesas Electronics is a 2-pin ESD noise clipping diode designed for transient voltage suppression in external interface circuits. It features a breakdown voltage of 18.8–21.14 V, dynamic impedance ≤50 Ω at 5 mA, reverse leakage ≤2 μA at 15 V, capacitance of 34 pF at 0 V/1 MHz, and IEC61000-4-2-rated ESD protection up to ±30 kV - deployed in USB, HDMI, and audio jack protection paths.
For engineers reviewing the NNCD20DA(91)-T1-A datasheet, NNCD20DA(91)-T1-A pinout, NNCD20DA(91)-T1-A application, or NNCD20DA(91)-T1-A equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, low capacitance for high-speed signal integrity, surge power handling (85 W @ 10 μs), and SC-76 package compatibility with fine-pitch PCB layouts.
Technical Context
This device operates as a unidirectional Zener-type clamping diode optimized for electrostatic discharge immunity per IEC61000-4-2 Level 4 (±30 kV contact). Its low dynamic impedance ensures rapid voltage clamping during fast transients, while its 34 pF junction capacitance minimizes signal distortion on data lines up to ~300 Mbps.
The NNCD20DA(91)-T1-A is rated for 200 mW steady-state power dissipation on a standard 30 mm × 30 mm × 1.6 mm FR-4 PCB and withstands non-repetitive surge reverse power of 85 W at 10 μs pulse width - enabling robust protection without thermal runaway under typical ESD events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 18.8–21.14 V at 5 mA - defines minimum clamping threshold before conduction; must exceed system operating voltage by ≥20% to avoid false triggering |
| Dynamic Impedance (ZZ) | ≤50 Ω at 5 mA - determines voltage overshoot during ESD pulse; lower value yields tighter clamping |
| Reverse Leakage (IR) | ≤2 μA at 15 V - ensures negligible standby current draw in always-on interface circuits |
| Junction Capacitance (Ct) | 34 pF at 0 V, 1 MHz - limits bandwidth degradation; suitable for USB 2.0 (480 Mbps) and analog audio lines |
| ESD Withstand (IEC61000-4-2) | ±30 kV contact discharge - meets industrial-grade immunity requirements for external ports |
| Surge Reverse Power (PRSM) | 85 W at tT = 10 μs - supports single-event energy absorption without failure |
| Package | SC-76 (2-pin Super Mini Mold) - 1.7 × 2.5 mm footprint with 0.9 mm pitch; compatible with automated SMT placement |
Pinout & Package
Package: SC-76 (2-pin Super Mini Mold), dimensions 1.7 ± 0.1 mm × 2.5 ± 0.15 mm × 1.25 ± 0.1 mm height, cathode indicated by marking band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input/Signal Line Connection | Connected to protected line (e.g., USB D+, HDMI TMDS+); conducts when voltage exceeds VBR |
| Cathode | Ground Reference Terminal | Connected to system ground plane; establishes clamping reference and provides return path for ESD current |
Key Features
| Feature | Design Value |
|---|---|
| IEC61000-4-2 Level 4 Compliance | Guarantees ±30 kV contact / ±15 kV air discharge immunity without degradation - validated per international EMI test standard |
| Low Dynamic Impedance | ≤50 Ω enables sub-25 V clamping voltage during 8/20 μs surges - critical for protecting 3.3 V or 5 V logic interfaces |
| Ultra-Low Capacitance | 34 pF preserves signal integrity on high-speed digital and analog lines - avoids jitter or attenuation in USB/HDMI/audio paths |
| Pb-Free & RoHS Compliant | Pure Sn (tin) lead plating meets EU RoHS Directive 2011/65/EU - no lead in external electrodes or terminations |
| SC-76 Package Thermal Performance | 200 mW power dissipation on standard FR-4 PCB - sufficient for intermittent ESD events without heatsinking |
Applications
| USB 2.0 Port Protection | HDMI Interface Clamping |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines against ESD events during cable insertion/removal in consumer electronics. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between signal line and ground to shunt ESD current away from USB transceiver IC. Use Value: 34 pF capacitance avoids signal rise-time degradation; 18.8–21.14 V VBR ensures no conduction during 3.3 V nominal operation while clamping transients above 25 V. | Use Scenario: Safeguarding HDMI TMDS differential pairs against user-induced ESD in AV receivers and display adapters. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted directly at HDMI connector pins to minimize stub length and preserve 1.65 GHz bandwidth. Use Value: 34 pF capacitance maintains eye diagram integrity; ±30 kV IEC61000-4-2 rating covers worst-case human-body model exposure at external ports. |
| Audio Jack ESD Suppression | Industrial Serial Interface Protection |
Use Scenario: Preventing latch-up or damage in 3.5 mm stereo headphone jacks exposed to repeated static discharge in portable audio devices. IC Role / Device Role / Timing Role: Bidirectional clamping function achieved via series-anode/cathode configuration across L/R/GND paths. Use Value: 2 μA max reverse leakage prevents DC bias shift in analog audio paths; SC-76 footprint allows placement within tight connector keep-out zones. | Use Scenario: Hardening RS-232 or RS-485 transceivers against ESD in factory automation panels and PLC I/O modules. IC Role / Device Role / Timing Role: Ground-referenced transient voltage suppressor installed at connector entry point to divert ESD energy before reaching driver/receiver IC. Use Value: 85 W surge power rating handles multiple 10 μs pulses without parameter drift; 150°C max junction temperature supports extended operation in enclosed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD9X3.3SFT5G (ON Semiconductor) | Lower VBR (3.3 V), higher Ct (110 pF), same SC-76 package | Better suited for 3.3 V logic rails; unsuitable for 5 V or analog lines due to excessive capacitance | Select only if protecting sub-3.3 V interfaces where clamping voltage margin is constrained |
| TPD2E001DRYR (Texas Instruments) | Dual-channel, 15 pF per line, 5.5 V VBR, same 2-pin equivalent per channel | Requires separate device per signal line; superior for multi-line protection but higher BOM count | Prefer when protecting two independent low-voltage signals simultaneously with minimal board area |
Compared with ESD9X3.3SFT5G and TPD2E001DRYR, the NNCD20DA(91)-T1-A offers higher voltage clamping headroom (18.8–21.14 V) and lower capacitance (34 pF), making it uniquely appropriate for 5 V-tolerant or mixed-signal interfaces where both ESD robustness and signal fidelity are required.
Availability
NNCD20DA(91)-T1-A is available at Aetrix Electronics and suitable for USB 2.0 port protection, HDMI interface clamping, and industrial serial interface protection requiring stable component supply across production lifecycles.
Supply support for NNCD20DA(91)-T1-A 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 NNCD20DA(91)-T1-A belongs to Renesas' legacy ESD noise clipping diode family, engineered specifically for IEC61000-4-2-compliant external interface protection in consumer, computing, and industrial equipment.
FAQ
What is the exact breakdown voltage range for NNCD20DA(91)-T1-A?
The NNCD20DA(91)-T1-A has a guaranteed breakdown voltage range of 18.8 V to 21.14 V at 5 mA test current, measured per JEDEC JESD22-A114 with 40 ms pulse. This range ensures reliable clamping above 5 V system rails while maintaining margin below 24 V absolute maximum ratings of common interface ICs. The specification is verified per Renesas datasheet D18879EJ2V0DS.
Does NNCD20DA(91)-T1-A support bidirectional ESD protection?
NNCD20DA(91)-T1-A is a unidirectional diode configured as a cathode-grounded Zener clamp. For bidirectional protection, two units must be used in series opposition (anode-to-anode or cathode-to-cathode) across the signal line and ground. The device itself does not provide symmetrical clamping without external configuration - confirmed in the "Sample Application Circuit" section of Renesas datasheet D18879EJ2V0DS.
What is the thermal resistance and maximum junction temperature of NNCD20DA(91)-T1-A?
NNCD20DA(91)-T1-A has a maximum junction temperature (Tj) of 150°C and is rated for 200 mW steady-state power dissipation when mounted on a 30 mm × 30 mm × 1.6 mm FR-4 PCB. Transient thermal impedance is 625°C/W at 1 ms (per Figure 4), indicating effective short-pulse heat dissipation. These values are specified in the Absolute Maximum Ratings table of Renesas datasheet D18879EJ2V0DS.
Is NNCD20DA(91)-T1-A compliant with RoHS and lead-free manufacturing standards?
Yes, NNCD20DA(91)-T1-A uses pure Sn (tin) lead plating and contains no lead in external electrodes or other parts, satisfying EU RoHS Directive 2011/65/EU. This compliance is explicitly stated in the "Ordering Information" section of Renesas datasheet D18879EJ2V0DS and confirmed by the "Pb-free" notation in the part numbering convention.
What is the ESD voltage rating and test standard for NNCD20DA(91)-T1-A?
NNCD20DA(91)-T1-A is rated for ±30 kV contact discharge and ±15 kV air discharge per IEC61000-4-2 (Level 4), verified using the 150 pF/330 Ω test network. This rating is documented in the "Electrical Characteristics" table under "ESD Voltage (kV)" and referenced in the Features and Applications sections of Renesas datasheet D18879EJ2V0DS.
NNCD20DA(91)-T1-A 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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 18.8V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 34pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Super Mini Mold
NNCD20DA(91)-T1-A FAQ
1.How can I place an order for NNCD20DA(91)-T1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD20DA(91)-T1-A 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 NNCD20DA(91)-T1-A reliable?
The price and inventory of NNCD20DA(91)-T1-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NNCD20DA(91)-T1-A is usually 5 days.
3.What payment methods are accepted for NNCD20DA(91)-T1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD20DA(91)-T1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD20DA(91)-T1-A?
NNCD20DA(91)-T1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD20DA(91)-T1-A 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 NNCD20DA(91)-T1-A?
For technical support, including NNCD20DA(91)-T1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD20DA(91)-T1-A requirements.
6.How does Aetrix verify that NNCD20DA(91)-T1-A is sourced from the original manufacturer or authorized distributors?
All NNCD20DA(91)-T1-A 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 NNCD20DA(91)-T1-A meets industry standards.
7.What is the process for return or replacement of NNCD20DA(91)-T1-A?
All NNCD20DA(91)-T1-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD20DA(91)-T1-A, 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 NNCD20DA(91)-T1-A part is unused and in its original packaging.
Return procedure for NNCD20DA(91)-T1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD20DA(91)-T1-A Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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