My Inquiry
My Account
Renesas NNCD7.5G-T1-A
- Part No.:
- NNCD7.5G-T1-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- SC-74A, SOT-753
- Datasheet:
-
NNCD7.5G-T1-A.pdf
- Description:
- NNCD7.5G-T1-A - ELECTROSTATIC DI
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
NNCD7.5G-T1-A 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 a minimum breakdown voltage of 7.06 V, dynamic impedance ≤30 Ω at 5 mA, and ESD endurance ≥30 kV per IEC 1000-4-2. It protects external interface circuits such as parallel ports, CD-ROM connectors, and peripheral cables in consumer and office electronics.
For engineers reviewing the NNCD7.5G-T1-A datasheet, NNCD7.5G-T1-A pinout, NNCD7.5G-T1-A application, or NNCD7.5G-T1-A equivalent, key selection criteria include verified 30 kV IEC 1000-4-2 immunity, 4.0 V reverse leakage max at 1.0 V bias, 90 pF typical capacitance at 1 MHz, and compatibility with automated SMT placement due to its SC-74A footprint.
Technical Context
This device implements four independent cathode-to-common-anode ESD clamping paths in a single monolithic silicon die. Each channel exhibits sharp avalanche breakdown above 7.06 V and low dynamic impedance (≤30 Ω), enabling fast transient suppression during contact or air-gap ESD events.
Designed for I/O line protection, it operates with zero-bias capacitance of 90 pF (typ.) and leakage current ≤2 µA at VR = 4.0 V, ensuring minimal signal distortion on high-speed digital interfaces like parallel printer or legacy PC peripheral buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 7.06–7.84 V min/max - defines precise clamping threshold for overvoltage transients |
| Dynamic Impedance (Zz) | ≤30 Ω at 5 mA - ensures low-voltage overshoot during 30 kV ESD pulses |
| ESD Withstand Voltage | ≥30 kV per IEC 1000-4-2 - validated immunity level for human-body-model surges |
| Reverse Capacitance (Ct) | 90 pF typ. at 1 MHz - low enough for <10 Mbps parallel bus signal integrity |
| Leakage Current (IR) | ≤2 µA at VR = 4.0 V - prevents DC loading on protected I/O lines |
| Surge Power (PRSM) | 85 W at t = 10 µs - supports single-pulse energy absorption without failure |
| Package | 5-pin Mini Mold (SC-74A) - surface-mount compatible with standard pick-and-place equipment |
Pinout & Package
Package: 5-pin Mini Mold (SC-74A), dimensions 2.9 × 1.9 × 1.4 mm, gull-wing leads, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode 1 (K1) | First ESD clamp path - connects to protected signal line 1 |
| 2 | Anode (A, common) | Shared anode node - ties all four clamps to ground or reference rail |
| 3 | Cathode 2 (K2) | Second ESD clamp path - isolates protection for signal line 2 |
| 4 | Cathode 3 (K3) | Third ESD clamp path - enables multi-line protection in compact layout |
| 5 | Cathode 4 (K4) | Fourth ESD clamp path - supports full quad-interface coverage (e.g., D0–D3) |
Key Features
| Feature | Design Value |
|---|---|
| IEC 1000-4-2 compliance | 30 kV contact/air discharge rating - meets industrial ESD immunity requirements without external circuitry |
| Quad common-anode topology | Four independent clamping diodes sharing one anode - reduces PCB area vs. discrete solutions |
| Low dynamic impedance | ≤30 Ω at 5 mA - limits clamped voltage to <8.5 V during 30 kV event |
| Controlled capacitance | 90 pF typical - preserves rise/fall times on parallel data buses up to 10 Mbps |
| Automated assembly support | SC-74A gull-wing footprint - compatible with standard reflow profiles and AOI inspection |
Applications
| Parallel Printer Interface Protection | CD-ROM Drive Data Bus Clamping |
|---|---|
Use Scenario: Protects bidirectional 8-bit parallel port signals (e.g., STROBE, ACK, BUSY, D0–D7) from ESD during cable hot-plug or handling. IC Role / Device Role / Timing Role: Quad-channel voltage clamp - each cathode assigned to one data or control line; common anode grounded. Use Value: Prevents latch-up or damage to microcontroller GPIO or ASIC interface logic by limiting transient voltage to ≤8.5 V. | Use Scenario: Shields CD-ROM drive's 16-bit data bus and control lines (e.g., RD, WR, CS) against ESD from ribbon cable insertion or chassis contact. IC Role / Device Role / Timing Role: Multi-line ESD suppressor - K1–K4 assigned to critical high-fanout lines; low 90 pF capacitance avoids data eye closure. Use Value: Maintains signal integrity at 2×/4× CD-ROM transfer rates while surviving >30 kV contact discharge per IEC test. |
| Legacy PC Peripheral Connector Guard | Industrial Control Panel Keypad Interface |
Use Scenario: Installed on motherboard edge connector or add-in card for PS/2, game port, or floppy controller interfaces exposed to user access. IC Role / Device Role / Timing Role: Common-anode transient voltage suppressor - anode tied to chassis ground; cathodes routed to each signal pin. Use Value: Eliminates need for four separate SOD-323 diodes, reducing BOM count and layout complexity by 75%. | Use Scenario: Protects membrane keypad scan lines and interrupt inputs on factory HMI panels subject to operator finger discharge. IC Role / Device Role / Timing Role: Low-leakage ESD clamp - IR ≤2 µA at 4 V ensures no false keypress detection from DC bias shift. Use Value: Enables reliable operation in ungrounded plastic enclosures where floating ground paths increase ESD risk. |
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 | Quad SC-74 package, 7.5 V VBR, 100 pF Ct, 30 kV ESD rating - higher capacitance than NNCD7.5G-T1-A | Optimized for USB 2.0 and audio lines; less suitable for >5 Mbps parallel buses | Select when lower cost and broad distributor availability outweigh 10 pF capacitance penalty |
| Vishay SMAJ7.5A | Single-channel SMA package, 7.5 V VBR, 150 pF Ct, 30 kV rating - discrete solution requiring 4x placement | Higher board area use and assembly cost; better thermal dissipation for repetitive surges | Choose only if surge repetition rate exceeds NNCD7.5G-T1-A's 85 W single-pulse limit |
Compared with NUP4105MR6T1G and SMAJ7.5A, NNCD7.5G-T1-A delivers tighter capacitance control (90 pF vs. 100/150 pF) and integrated quad layout - critical for space-constrained parallel interfaces where signal integrity and assembly efficiency are prioritized over surge repetition tolerance.
Availability
NNCD7.5G-T1-A is available at Aetrix Electronics and suitable for parallel interface protection, CD-ROM bus clamping, legacy peripheral shielding, and industrial keypad ESD hardening requiring stable component supply across long-lifecycle embedded programs.
Supply support for NNCD7.5G-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 leader delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and enterprise applications.
NNCD7.5G-T1-A belongs to Renesas' ESD noise clipping diode family designed specifically for IEC 1000-4-2 compliant interface protection in standard-grade consumer and office electronics.
FAQ
What is the exact breakdown voltage range specified for NNCD7.5G-T1-A?
The NNCD7.5G-T1-A has a guaranteed breakdown voltage range of 7.06 V (minimum) to 7.84 V (maximum) at 5 mA test current, as confirmed in the official Renesas datasheet D11645EJ1V1DS00. This tight VBR window ensures consistent clamping behavior across production lots and temperature ranges, making NNCD7.5G-T1-A suitable for precision ESD protection where overvoltage margin must be tightly controlled.
Does NNCD7.5G-T1-A meet IEC 61000-4-2 Level 4 ESD immunity?
Yes, NNCD7.5G-T1-A is rated for ≥30 kV ESD withstand per IEC 61000-4-2 (formerly IEC 1000-4-2), exceeding Level 4 (8 kV contact / 15 kV air) requirements. The datasheet explicitly states "endurance of no less than 30 KV" under the IEC test methodology, validating its use in harsh handling environments such as retail kiosks, industrial HMIs, and consumer peripherals where repeated human-contact ESD is expected.
What is the maximum allowable reverse leakage current for NNCD7.5G-T1-A at 4.0 V bias?
The maximum reverse leakage current for NNCD7.5G-T1-A is 2 µA at VR = 4.0 V and TA = 25 °C, as specified in the Electrical Characteristics table. This low leakage ensures minimal DC loading on protected I/O lines - critical for open-drain or weak-pullup interfaces like legacy parallel port handshaking signals (e.g., ACK, BUSY), where excessive leakage could cause false state detection or timing violations.
Can NNCD7.5G-T1-A be used in place of NNCD6.8G-T1-A without circuit redesign?
No - NNCD7.5G-T1-A and NNCD6.8G-T1-A have different breakdown voltages (7.06–7.84 V vs. 6.47–7.14 V) and dynamic impedances (≤30 Ω vs. ≤30 Ω but tested at different currents), so direct substitution requires verification of clamping margin relative to the protected IC's absolute maximum ratings. While both share identical pinout and package, the higher VBR of NNCD7.5G-T1-A may delay clamping onset, risking overvoltage exposure in systems designed around the 6.8 V threshold.
Is NNCD7.5G-T1-A qualified for automotive applications?
No - NNCD7.5G-T1-A is classified as a Standard quality grade device per Renesas documentation, intended for computers, office equipment, and consumer electronics. It is not qualified to AEC-Q200 or rated for automotive temperature ranges (–40 °C to +125 °C). For automotive infotainment or body-control interfaces, Renesas offers dedicated AEC-Q200-qualified ESD arrays such as the RCLAMP series, not NNCD7.5G-T1-A.
NNCD7.5G-T1-A 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):
- 4V (Max)
- Voltage - Breakdown (Min):
- 7.06V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- 85W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 90pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-74A
NNCD7.5G-T1-A FAQ
1.How can I place an order for NNCD7.5G-T1-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD7.5G-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 NNCD7.5G-T1-A reliable?
The price and inventory of NNCD7.5G-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 NNCD7.5G-T1-A is usually 5 days.
3.What payment methods are accepted for NNCD7.5G-T1-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD7.5G-T1-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD7.5G-T1-A?
NNCD7.5G-T1-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD7.5G-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 NNCD7.5G-T1-A?
For technical support, including NNCD7.5G-T1-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD7.5G-T1-A requirements.
6.How does Aetrix verify that NNCD7.5G-T1-A is sourced from the original manufacturer or authorized distributors?
All NNCD7.5G-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 NNCD7.5G-T1-A meets industry standards.
7.What is the process for return or replacement of NNCD7.5G-T1-A?
All NNCD7.5G-T1-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD7.5G-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 NNCD7.5G-T1-A part is unused and in its original packaging.
Return procedure for NNCD7.5G-T1-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD7.5G-T1-A 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…
