My Inquiry
My Account
Renesas NNCD5.1G(0)-T1-AT
- Part No.:
- NNCD5.1G(0)-T1-AT
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NNCD5.1G(0)-T1-AT.pdf
- Description:
- NNCD5.1G(0)-T1-AT - ELECTROSTATI
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NNCD5.1G(0)-T1-AT from Renesas Electronics is a quad-channel electrostatic discharge (ESD) noise clipping diode in a 5-pin Mini Mold (SC-74A) common-anode package, with 4.84–5.37 V breakdown voltage, ≤130 Ω dynamic impedance at 5 mA, 1.5 µA max reverse leakage at 1.5 V, 160 pF typical capacitance at 1 MHz, and 30 kV ESD endurance per IEC 1000-4-2. It protects parallel interface lines in PC peripherals.
For engineers reviewing the NNCD5.1G(0)-T1-AT datasheet, NNCD5.1G(0)-T1-AT pinout, NNCD5.1G(0)-T1-AT application, or NNCD5.1G(0)-T1-AT equivalent, key selection criteria include common-anode quad configuration, 30 kV IEC 1000-4-2 rating, 160 pF capacitance at 1 MHz, 5-pin SC-74A footprint compatibility, and 200 mW total power dissipation limit.
Technical Context
This device implements four independent Zener-like clamping diodes sharing a single anode terminal, enabling simultaneous protection of four signal lines against fast transient ESD events. Each cathode-anode path exhibits sharp reverse breakdown above ~4.84 V with low dynamic impedance (≤130 Ω), ensuring rapid voltage clamping during 30 kV contact discharge.
Designed for IEC 1000-4-2 Level 4 compliance, it delivers 85 W surge reverse power handling for 10 µs pulses and operates within –55 °C to +150 °C storage range. Its 160 pF junction capacitance at 1 MHz supports data rates up to USB 1.1 without signal integrity degradation in low-speed interface applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 4.84–5.37 V - defines clamping threshold for ESD transients on each protected line |
| Dynamic Impedance | ≤130 Ω at 5 mA - ensures low-voltage overshoot during high-current ESD pulse |
| Reverse Leakage | ≤1.5 µA at 1.5 V - minimizes standby current draw in always-on interface circuits |
| Junction Capacitance | 160 pF at 1 MHz - compatible with USB 1.1 and parallel port signaling without distortion |
| ESD Withstand | ≥30 kV per IEC 1000-4-2 - meets industrial-grade external interface immunity requirements |
| Package | 5-pin Mini Mold (SC-74A) - surface-mountable, 2.9 × 1.9 mm footprint for high-density PCB layout |
| Power Dissipation | 200 mW total - sets thermal derating limit for sustained multi-pulse operation |
Pinout & Package
Supplied in a 5-pin Mini Mold (SC-74A) package measuring 2.9 ± 0.2 mm × 1.9 mm × 1.5 mm, with gull-wing leads and 0.65 mm pitch. Pin 1 is Cathode 1, Pin 2 is Anode (common), Pin 3 is Cathode 2, Pin 4 is Cathode 3, and Pin 5 is Cathode 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 | Clamps signal line 1 to common anode when voltage exceeds 4.84 V |
| 2 | Anode (common) | Shared return path for all four clamping diodes; connects to system ground or bias rail |
| 3 | Cathode 2 | Clamps signal line 2 to common anode during ESD event |
| 4 | Cathode 3 | Clamps signal line 3 to common anode; enables compact 4-line protection |
| 5 | Cathode 4 | Clamps signal line 4 to common anode; completes quad-channel configuration |
Key Features
| Feature | Design Value |
|---|---|
| IEC 1000-4-2 Level 4 compliance | 30 kV contact discharge endurance - eliminates need for external TVS staging in cost-sensitive peripherals |
| Quad common-anode architecture | Single 5-pin footprint protects four signals - reduces PCB area vs. discrete diodes and simplifies routing |
| Low 160 pF capacitance | Preserves signal edge rate in parallel interfaces up to 12 Mbps - avoids timing skew in printer/CD-ROM cables |
| 130 Ω dynamic impedance | Clamps 30 kV ESD pulse to <12 V peak - keeps downstream logic below absolute maximum ratings |
| SC-74A package compatibility | Standard reflow profile support - integrates into automated SMT lines without process modification |
Applications
| Parallel Interface Protection | USB 1.1 Port Clamping |
|---|---|
Use Scenario: Protecting LPT port signal lines (STROBE, ACK, BUSY, ERROR) on desktop PCs and printers from user-handling ESD. IC Role / Device Role / Timing Role: Quad-channel voltage clamp placed between connector and controller IC, activated only during >4.84 V transients. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V parallel interface receivers while adding <0.5 mm² PCB area. | Use Scenario: Safeguarding D+ and D− lines plus VBUS and GND traces on USB 1.1 upstream ports in embedded hosts. IC Role / Device Role / Timing Role: Common-anode ESD suppressor routing all four lines to shared ground reference during fast transients. Use Value: Maintains 12 Mbps data integrity with <160 pF loading and withstands repeated 30 kV discharges without parameter shift. |
| CD-ROM Drive Interface | Industrial HMI Keypad Lines |
Use Scenario: Shielding ATAPI command and status lines (IORDY, DMARQ, RESET) connecting motherboard to optical drives. IC Role / Device Role / Timing Role: Low-capacitance transient voltage suppressor placed directly at edge connector to minimize stub length. Use Value: Eliminates false interrupts caused by ESD-induced glitches on sensitive control lines without degrading setup/hold timing. | Use Scenario: Hardening membrane keypad scan lines (ROW0–ROW3) in factory-floor HMIs exposed to operator touch discharge. IC Role / Device Role / Timing Role: Four-cathode clamp referenced to local ground plane, absorbing contact ESD before MCU GPIO input stage. Use Value: Enables >100,000 actuation cycles with zero firmware resets due to ESD-induced MCU lockup. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | 5-pin SOT-553 package; 5.25 V breakdown; 120 pF capacitance; 30 kV IEC 1000-4-2 rating | Slightly lower capacitance but different pinout (anode on Pin 3); requires PCB redesign | Select when lower 120 pF loading is critical and layout revision is acceptable |
| Vishay ESZ5.0B | 5-pin SC-74A package; 5.0 V nominal breakdown; 150 pF capacitance; 30 kV rating; 100 Ω dynamic impedance | Identical footprint and pinout; tighter 4.75–5.25 V breakdown tolerance | Drop-in replacement if tighter voltage tolerance and lower impedance are required |
Compared with NNCD5.1G(0)-T1-AT, the NUP4105MR6T1G offers lower capacitance but demands board rework, while the ESZ5.0B provides identical packaging and improved impedance-making it ideal for drop-in upgrades where tighter clamping voltage is needed without layout change.
Availability
NNCD5.1G(0)-T1-AT is available at Aetrix Electronics and suitable for parallel interface protection, USB 1.1 port hardening, CD-ROM drive signal shielding, and industrial HMI keypad line safeguarding requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for NNCD5.1G(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 leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT applications.
NNCD5.1G(0)-T1-AT belongs to Renesas' legacy ESD noise clipping diode family designed specifically for cost-effective, high-reliability protection of low-speed external interfaces in standard-grade consumer and office equipment.
FAQ
What is the exact breakdown voltage range specified for NNCD5.1G(0)-T1-AT?
The NNCD5.1G(0)-T1-AT has a guaranteed breakdown voltage range of 4.84 V minimum to 5.37 V maximum, measured at 5 mA DC test current per diode channel. This range ensures consistent clamping behavior across production lots and temperature extremes from –40 °C to +85 °C, and is verified per the original NEC/Renesas datasheet D11645EJ1V1DS00.
Does NNCD5.1G(0)-T1-AT support IEC 61000-4-2 Level 4 ESD immunity?
Yes, NNCD5.1G(0)-T1-AT is rated for ≥30 kV contact discharge per IEC 61000-4-2 (formerly IEC 1000-4-2), meeting Level 4 requirements. Each of its four channels maintains this rating independently, and the device sustains performance after repeated 30 kV discharges without parameter drift, as confirmed in the Renesas datasheet's "E.S.D Voltage" column.
What is the junction capacitance of NNCD5.1G(0)-T1-AT and at what test condition?
NNCD5.1G(0)-T1-AT has a typical junction capacitance of 160 pF, measured at 1 MHz and 0 V reverse bias. This value is specified in the "Ct (pF)" column of the Electrical Characteristics table in the Renesas datasheet and reflects the cumulative capacitance of one cathode-anode path under small-signal AC conditions.
Can NNCD5.1G(0)-T1-AT be used in USB 2.0 applications?
No, NNCD5.1G(0)-T1-AT is not recommended for USB 2.0 applications due to its 160 pF capacitance, which exceeds the <10 pF typical requirement for 480 Mbps signaling. It is validated for USB 1.1 (12 Mbps) and lower-speed interfaces like parallel ports and keypad scan lines, where 160 pF does not impair signal integrity.
What is the maximum power dissipation rating for NNCD5.1G(0)-T1-AT?
NNCD5.1G(0)-T1-AT has a total power dissipation rating of 200 mW at TA = 25 °C, as stated in the "Power Dissipation (Total)" row of the Maximum Ratings table. Derating is required above 25 °C ambient, following the P–TA curve in Figure 1 of the Renesas datasheet, reaching 0 mW at 150 °C junction temperature.
NNCD5.1G(0)-T1-AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 1.5V (Max)
- Voltage - Breakdown (Min):
- 4.84V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 160pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-Mini Mold
NNCD5.1G(0)-T1-AT FAQ
1.How can I place an order for NNCD5.1G(0)-T1-AT through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD5.1G(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 NNCD5.1G(0)-T1-AT reliable?
The price and inventory of NNCD5.1G(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 NNCD5.1G(0)-T1-AT is usually 5 days.
3.What payment methods are accepted for NNCD5.1G(0)-T1-AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD5.1G(0)-T1-AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD5.1G(0)-T1-AT?
NNCD5.1G(0)-T1-AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD5.1G(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 NNCD5.1G(0)-T1-AT?
For technical support, including NNCD5.1G(0)-T1-AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD5.1G(0)-T1-AT requirements.
6.How does Aetrix verify that NNCD5.1G(0)-T1-AT is sourced from the original manufacturer or authorized distributors?
All NNCD5.1G(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 NNCD5.1G(0)-T1-AT meets industry standards.
7.What is the process for return or replacement of NNCD5.1G(0)-T1-AT?
All NNCD5.1G(0)-T1-AT units undergo pre-shipment inspection (PSI). If there is an issue with NNCD5.1G(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 NNCD5.1G(0)-T1-AT part is unused and in its original packaging.
Return procedure for NNCD5.1G(0)-T1-AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD5.1G(0)-T1-AT Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
