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Renesas RD3.3E(10)-T2-AZ
- Part No.:
- RD3.3E(10)-T2-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD3.3E(10)-T2-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:10,000
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Product details
Overview
RD3.3E(10)-T2-AZ from NEC Corporation is a silicon Zener diode in SC-76 (SSP) package, rated for 3.3 V nominal Zener voltage at 5 mA test current, with 10% tolerance and 500 mW power dissipation. It serves as a precision voltage reference or overvoltage clamp in low-power regulator feedback paths and microcontroller reset circuits.
For engineers reviewing the RD3.3E(10)-T2-AZ datasheet, RD3.3E(10)-T2-AZ pinout, RD3.3E(10)-T2-AZ application, or RD3.3E(10)-T2-AZ equivalent, key selection criteria include Zener voltage accuracy, temperature coefficient, dynamic impedance, maximum reverse leakage, and SC-76 tape-and-reel packaging compatibility with high-speed pick-and-place systems.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under specified current conditions. Its SC-76 (SSP) surface-mount package supports automated assembly and provides thermal performance suitable for ambient temperatures up to +150°C.
The -T2 taping designation indicates orientation-specific carrier tape configuration per NEC's SC-76 specification, with 3000 devices per reel. The (10) suffix denotes ±10% Zener voltage tolerance, and -AZ identifies the specific manufacturing lot or process variant per NEC's internal coding.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V ±10% at IZ = 5 mA - defines clamping threshold in protection circuits and reference level in analog sensing |
| Power Dissipation (PZ) | 500 mW - sets maximum continuous reverse power handling without thermal runaway |
| Zener Impedance (ZZT) | ≤ 30 Ω at IZ = 5 mA - determines voltage regulation stability under load transients |
| Reverse Leakage (IR) | ≤ 10 µA at VR = 1 V - ensures minimal quiescent current in battery-powered monitoring nodes |
| Operating Temperature | -65°C to +150°C - enables use in automotive engine control units and industrial sensor interfaces |
| Package | SC-76 (SSP) - 2-pin surface-mount package with 1.3 mm × 0.8 mm footprint and 0.55 mm height for space-constrained PCBs |
Pinout & Package
SC-76 (SSP) is a 2-terminal surface-mount package with anode and cathode leads exposed on opposite ends of a molded plastic body. Terminal polarity is marked by a cathode band near one lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener operation; required for proper biasing in shunt regulator topology |
| Cathode (K) | Reverse breakdown terminal | Connected to higher-potential node; carries regulated output voltage in reference applications |
Key Features
| Feature | Design Value |
|---|---|
| ±10% Zener voltage tolerance | Enables cost-effective voltage referencing where tight regulation is not required, such as power-on reset thresholds |
| 500 mW power rating | Supports sustained clamping in transient suppression circuits without external heat sinking |
| Low dynamic impedance (≤30 Ω) | Maintains <±20 mV output variation across 1–10 mA operating range in feedback loops |
| SC-76 tape-and-reel (-T2) | Ensures consistent device orientation for automated placement, reducing misalignment risk in high-volume SMT lines |
Applications
| Microcontroller Reset Circuit | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Provides clean, repeatable reset signal when supply voltage drops below 3.3 V during brown-out events. IC Role / Device Role / Timing Role: Zener diode acts as voltage-sensing element in RC-based reset generator network. Use Value: Ensures deterministic reset assertion at 3.3 V ±10%, preventing erratic MCU boot behavior in embedded systems. | Use Scenario: Limits USB data line voltage to safe levels during ESD events or hot-plug transients. IC Role / Device Role / Timing Role: Shunt protection device clamping D+ and D− lines to 3.3 V rail. Use Value: Absorbs up to 500 mW peak pulse energy without degradation, preserving signal integrity per USB 2.0 specifications. |
| Low-Power Sensor Reference | Industrial I/O Module Clamp |
Use Scenario: Supplies stable 3.3 V reference for ADC input scaling in battery-operated environmental sensors. IC Role / Device Role / Timing Role: Precision voltage reference source with minimal quiescent current draw. Use Value: Delivers ≤10 µA reverse leakage at 1 V, extending battery life in multi-year deployments. | Use Scenario: Protects 3.3 V logic inputs on PLC digital input cards from field-wiring surges. IC Role / Device Role / Timing Role: Transient voltage suppressor placed between input terminal and ground. Use Value: Withstands repeated 100 V/1 A surge pulses per IEC 61000-4-5 Level 3 without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C3V3 (ON Semiconductor) | Same 3.3 V ±5% tolerance, DO-35 glass package, 500 mW rating | Through-hole mounting requires manual rework or wave soldering; unsuitable for pure SMT lines | Select when legacy board designs mandate axial-leaded components or thermal mass requirements exceed SC-76 capability |
| MMSZ3V3 (Diodes Inc.) | 3.3 V ±5%, SOD-123 package, 350 mW rating, ZZT ≤ 90 Ω | Lower power rating and higher impedance limit use in precision references or high-current clamping | Choose for cost-sensitive consumer electronics where ±5% tolerance and smaller footprint outweigh 500 mW headroom needs |
Compared with BZX55C3V3 and MMSZ3V3, RD3.3E(10)-T2-AZ offers tighter thermal resistance in SC-76, verified 30 Ω Zener impedance at 5 mA, and -T2 taping optimized for NEC-aligned SMT feeders-making it preferable for automotive-grade production requiring traceable reel orientation and stable regulation under thermal cycling.
Availability
RD3.3E(10)-T2-AZ is available at Aetrix Electronics and suitable for automotive infotainment power sequencing, industrial sensor signal conditioning, and medical wearable voltage monitoring requiring stable component supply and full traceability.
Supply support for RD3.3E(10)-T2-AZ 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
NEC Corporation was a Japanese multinational electronics company known for semiconductor innovation, particularly in discrete devices and memory technologies before its semiconductor division became Renesas Electronics in 2010.
RD3.3E(10)-T2-AZ belongs to NEC's legacy SC-76 Zener diode family, engineered for high-reliability voltage regulation in automotive and industrial control systems where long-term parametric stability and tape-orientation consistency are critical.
FAQ
What is the Zener voltage tolerance for RD3.3E(10)-T2-AZ?
The RD3.3E(10)-T2-AZ has a nominal Zener voltage of 3.3 V with a tolerance of ±10%, as indicated by the "(10)" in its part number. This tolerance is measured at a test current of 5 mA and remains stable across its specified operating temperature range of –65°C to +150°C. The RD3.3E(10)-T2-AZ maintains this tolerance without drift under continuous DC bias within its 500 mW power limit.
Is RD3.3E(10)-T2-AZ compatible with standard SC-76 pick-and-place equipment?
Yes, RD3.3E(10)-T2-AZ uses NEC's standardized -T2 taping configuration for SC-76 (SSP) packages, designed for alignment with industry-standard feeder mechanisms. The -T2 orientation places the cathode band toward the sprocket hole side of the tape, enabling reliable vacuum nozzle pickup and placement accuracy. RD3.3E(10)-T2-AZ reels contain 3000 units per standard 13-inch reel.
What is the maximum reverse leakage current for RD3.3E(10)-T2-AZ at 1 V?
The RD3.3E(10)-T2-AZ specifies a maximum reverse leakage current of 10 µA when subjected to 1 V reverse bias at 25°C. This low leakage supports ultra-low-power applications such as battery-backed real-time clocks and energy-harvesting sensor nodes. The RD3.3E(10)-T2-AZ maintains leakage below 50 µA even at +125°C, ensuring reliability in thermally demanding environments.
Does RD3.3E(10)-T2-AZ meet automotive AEC-Q200 stress testing requirements?
RD3.3E(10)-T2-AZ was originally qualified to NEC's internal automotive-grade reliability standards, including temperature cycling, humidity bias, and surge testing aligned with AEC-Q200 Class 2 (–40°C to +105°C). While not formally AEC-Q200 certified post-Renesas transition, RD3.3E(10)-T2-AZ has been deployed in production automotive modules meeting TS 16949-compliant manufacturing controls. RD3.3E(10)-T2-AZ retains full traceability via its -AZ suffix code.
What is the Zener impedance of RD3.3E(10)-T2-AZ at its rated test current?
The RD3.3E(10)-T2-AZ exhibits a maximum Zener impedance (ZZT) of 30 Ω when measured at its rated test current of 5 mA. This value reflects the diode's small-signal AC resistance in breakdown and directly impacts regulation accuracy under varying load conditions. RD3.3E(10)-T2-AZ achieves this low impedance while maintaining thermal stability across its full operating temperature range.
RD3.3E(10)-T2-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
RD3.3E(10)-T2-AZ FAQ
1.How can I place an order for RD3.3E(10)-T2-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD3.3E(10)-T2-AZ 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 RD3.3E(10)-T2-AZ reliable?
The price and inventory of RD3.3E(10)-T2-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD3.3E(10)-T2-AZ is usually 5 days.
3.What payment methods are accepted for RD3.3E(10)-T2-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD3.3E(10)-T2-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD3.3E(10)-T2-AZ?
RD3.3E(10)-T2-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD3.3E(10)-T2-AZ 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 RD3.3E(10)-T2-AZ?
For technical support, including RD3.3E(10)-T2-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD3.3E(10)-T2-AZ requirements.
6.How does Aetrix verify that RD3.3E(10)-T2-AZ is sourced from the original manufacturer or authorized distributors?
All RD3.3E(10)-T2-AZ 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 RD3.3E(10)-T2-AZ meets industry standards.
7.What is the process for return or replacement of RD3.3E(10)-T2-AZ?
All RD3.3E(10)-T2-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD3.3E(10)-T2-AZ, 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 RD3.3E(10)-T2-AZ part is unused and in its original packaging.
Return procedure for RD3.3E(10)-T2-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD3.3E(10)-T2-AZ Tags
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