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Renesas NNCD7.5F-T1B-A
- Part No.:
- NNCD7.5F-T1B-A
- Manufacturer:
- Renesas
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
NNCD7.5F-T1B-A.pdf
- Description:
- NNCD7.5F-T1B-A - ELECTROSTATIC D
- Quantity:
- Payment:
- Shipping:
Inventory:36,000
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Product details
Overview
NNCD7.5F-T1B-A from Renesas Electronics is a dual-channel ESD noise clipping diode in SC-59 (EIAJ) 3-pin mini mold package, with breakdown voltage 7.06–7.84 V, dynamic impedance ≤30 Ω at 5 mA, reverse leakage ≤2 µA at 4.0 V, capacitance 90 pF at 1 MHz, and ESD endurance ≥30 kV per IEC 1000-4-2. It serves as bidirectional transient voltage suppressor for USB, audio, and parallel interface lines.
For engineers reviewing the NNCD7.5F-T1B-A datasheet, NNCD7.5F-T1B-A pinout, NNCD7.5F-T1B-A application, or NNCD7.5F-T1B-A equivalent, key selection criteria include common-anode dual-cathode topology, 200 mW total power dissipation, 100 W surge rating (10 µs), junction temperature limit of 150 °C, and compatibility with standard PCB reflow profiles for SC-59 packages.
Technical Context
This device implements an anode-common dual-diode structure optimized for fast clamping of electrostatic discharge transients on signal lines. Its low dynamic impedance (≤30 Ω) ensures rapid voltage limiting during ESD events, while its 90 pF capacitance maintains signal integrity for DC–low-MHz interfaces such as printer ports and legacy audio jacks.
The diode operates within a –55 °C to +150 °C storage range and supports peak surge reverse power of 100 W under non-repetitive 10 µs pulses. Its breakdown voltage tolerance (±5.5%) and guaranteed 30 kV IEC 1000-4-2 immunity are validated per standardized test conditions using 150 pF/330 Ω network.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage | 7.06–7.84 V - defines clamping threshold for bidirectional ESD protection on ±5 V tolerant interfaces |
| Dynamic Impedance | ≤30 Ω at 5 mA - ensures low-voltage overshoot during fast ESD pulses (IEC 1000-4-2) |
| Reverse Leakage | ≤2 µA at 4.0 V - minimizes standby current in always-connected signal paths |
| Capacitance | 90 pF at 1 MHz - suitable for low-speed digital/audio lines; avoids signal distortion on <10 MHz signals |
| ESD Withstand | ≥30 kV contact discharge - meets industrial-grade immunity requirements per IEC 1000-4-2 Level 4 |
| Power Dissipation | 200 mW total - sets thermal derating limit for continuous operation at ambient ≤85 °C |
| Surge Rating | 100 W (10 µs pulse) - handles single-event transients without degradation |
Pinout & Package
Package: SC-59 (EIAJ) 3-pin mini mold, surface-mount, dimensions 2.9 × 1.5 × 1.1 mm (L × W × H), tape-and-reel packaging (T1B-A denotes 3,000 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1. K1 | Cathode 1 | Clamps positive transients on Channel 1; connects to protected signal line (e.g., D+) |
| 2. K2 | Cathode 2 | Clamps positive transients on Channel 2; connects to second protected line (e.g., D−) |
| 3. A | Anode (common) | Reference node tied to system ground or VCC; enables bidirectional clamping via dual cathodes |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel common-anode topology | Enables compact protection of differential or independent signal pairs with shared ground reference |
| 30 kV IEC 1000-4-2 compliance | Validated immunity level eliminates need for external test validation in industrial equipment certification |
| 90 pF low capacitance | Preserves rise/fall times on parallel bus signals (e.g., printer port, PS/2) without edge degradation |
| SC-59 package footprint | Matches industry-standard SOT-23 land pattern; supports automated placement and reflow soldering |
| 150 °C max junction temperature | Supports operation in enclosed enclosures or near heat-generating components without thermal shutdown |
Applications
| USB 1.1 Peripheral Protection | Legacy Parallel Port Clamping |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 1.1 printers, scanners, or HID devices against ESD during cable insertion or handling. IC Role / Device Role / Timing Role: Bidirectional voltage clamp limiting transient excursions to ≤7.84 V during ±30 kV contact discharge events. Use Value: Prevents latch-up or damage to USB transceivers by diverting >95% of ESD current to ground before IC input structures exceed absolute maximum ratings. | Use Scenario: Shielding 8-bit parallel data bus (DATA0–DATA7) and control lines (STROBE, ACK) of dot-matrix or thermal printers. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp maintaining signal fidelity up to 2 MHz while suppressing ±30 kV ESD spikes. Use Value: Eliminates intermittent communication faults caused by ESD-induced bit errors, extending mean time between failures (MTBF) in office environments. |
| Audio Line Surge Suppression | Industrial Control I/O Protection |
Use Scenario: Safeguarding unbalanced analog audio inputs (e.g., MIC_IN, LINE_IN) on consumer AV receivers or PC sound cards. IC Role / Device Role / Timing Role: DC-blocking ESD clamp with 90 pF capacitance preserving frequency response from 20 Hz to 20 kHz. Use Value: Prevents audible pop/crackle and op-amp saturation during user-touch ESD events without attenuating baseband audio signals. | Use Scenario: Hardening digital I/O lines (e.g., optocoupler inputs, relay drivers) in PLC modules exposed to factory-floor ESD. IC Role / Device Role / Timing Role: Fast-response transient suppressor rated for 100 W surge pulses and –55 °C to +125 °C operating range. Use Value: Reduces field returns due to ESD-induced firmware resets or false triggering in harsh industrial settings. |
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-channel, 5.5 V breakdown, 120 pF capacitance, SOT-23-6 package | Higher channel count but larger footprint and higher capacitance; better suited for multi-line USB 2.0 or HDMI protection | Select when protecting ≥3 signal lines simultaneously and board space permits SOT-23-6 layout |
| Vishay SMAJ7.5A | Single-channel, 7.5 V standoff, 1000 W surge rating, DO-214AC package | Higher power handling but 5× larger footprint and no dual-cathode configuration; intended for power rail vs. signal line protection | Choose only for high-energy surge suppression on 5 V supply rails-not for differential signal clamping |
Compared with NUP4105MR6T1G and SMAJ7.5A, NNCD7.5F-T1B-A delivers optimal trade-off of dual-channel integration, 90 pF low capacitance, and SC-59 compactness for cost-sensitive, space-constrained signal-line ESD protection-without over-specifying surge capacity or adding unnecessary channels.
Availability
NNCD7.5F-T1B-A is available at Aetrix Electronics and suitable for USB peripheral design, parallel interface hardening, audio input protection, and industrial I/O conditioning requiring stable component supply and long-term manufacturing continuity.
Supply support for NNCD7.5F-T1B-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, infrastructure, and IoT applications.
NNCD7.5F-T1B-A belongs to Renesas' ESD noise clipping diode family designed specifically for robust, low-capacitance signal-line protection in consumer and industrial electronics-prioritizing IEC 1000-4-2 compliance and SC-59 manufacturability.
FAQ
What is the exact breakdown voltage range specified for NNCD7.5F-T1B-A?
The NNCD7.5F-T1B-A has a guaranteed breakdown voltage range of 7.06 V minimum to 7.84 V maximum, measured at 5 mA DC test current per the official Renesas datasheet. This tolerance band ensures consistent clamping behavior across production lots and supports reliable interface-level protection for ±5 V systems where overvoltage margin must be tightly controlled.
Does NNCD7.5F-T1B-A support bidirectional ESD protection?
Yes, NNCD7.5F-T1B-A provides true bidirectional ESD protection via its anode-common dual-cathode configuration. When a positive transient occurs on either K1 or K2, current flows from cathode to common anode; negative transients forward-bias the diode junctions, clamping both polarities. This architecture enables full IEC 1000-4-2 ±30 kV contact discharge protection without external polarity constraints.
What is the maximum allowable junction temperature for NNCD7.5F-T1B-A?
The maximum junction temperature for NNCD7.5F-T1B-A is 150 °C, as defined in the Renesas datasheet under "Maximum Ratings." This limit governs thermal design margins: at 25 °C ambient, the device can dissipate up to 200 mW continuously; derating is required above 85 °C ambient to maintain Tj ≤ 150 °C, per the thermal resistance curve in Figure 1 of the datasheet.
Can NNCD7.5F-T1B-A be used in automotive applications?
NNCD7.5F-T1B-A is classified as a Standard quality grade device per Renesas documentation and is not qualified for automotive use. It lacks AEC-Q200 stress testing, extended temperature validation beyond –55 °C to +150 °C, and automotive-specific reliability screening. For automotive infotainment or body-control interfaces, Renesas recommends qualified alternatives like the RCLAMP series or equivalent AEC-Q200-compliant TVS diodes.
Is NNCD7.5F-T1B-A compatible with lead-free reflow soldering processes?
Yes, NNCD7.5F-T1B-A is compatible with standard lead-free reflow profiles, including JEDEC J-STD-020D-compliant peak temperatures up to 260 °C. The SC-59 package construction and internal die attach materials are qualified for Pb-free assembly. Reflow profile recommendations-including preheat, soak, ramp-up, and cooling rates-are detailed in Renesas' Semiconductor Device Mounting Technology Manual (Document No. C10535E).
NNCD7.5F-T1B-A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- 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:
- 100W
- 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-59
NNCD7.5F-T1B-A FAQ
1.How can I place an order for NNCD7.5F-T1B-A through Aetrix?
Please submit a Request for Quotation (RFQ) for NNCD7.5F-T1B-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 NNCD7.5F-T1B-A reliable?
The price and inventory of NNCD7.5F-T1B-A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NNCD7.5F-T1B-A is usually 5 days.
3.What payment methods are accepted for NNCD7.5F-T1B-A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NNCD7.5F-T1B-A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NNCD7.5F-T1B-A?
NNCD7.5F-T1B-A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NNCD7.5F-T1B-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 NNCD7.5F-T1B-A?
For technical support, including NNCD7.5F-T1B-A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NNCD7.5F-T1B-A requirements.
6.How does Aetrix verify that NNCD7.5F-T1B-A is sourced from the original manufacturer or authorized distributors?
All NNCD7.5F-T1B-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 NNCD7.5F-T1B-A meets industry standards.
7.What is the process for return or replacement of NNCD7.5F-T1B-A?
All NNCD7.5F-T1B-A units undergo pre-shipment inspection (PSI). If there is an issue with NNCD7.5F-T1B-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 NNCD7.5F-T1B-A part is unused and in its original packaging.
Return procedure for NNCD7.5F-T1B-A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
NNCD7.5F-T1B-A Tags
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ESD9B5.0ST5G
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