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Renesas RD7.5E-T2-AZ
- Part No.:
- RD7.5E-T2-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD7.5E-T2-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:45,000
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Product details
Overview
RD7.5E-T2-AZ from NEC Corporation is a 7.5 V, 500 mW Zener diode in SC-76 (SSP) surface-mount package, with ±5% tolerance and 5 µA maximum reverse leakage at rated voltage, used for precision voltage reference and overvoltage protection in low-power analog circuits.
For engineers reviewing the RD7.5E-T2-AZ datasheet, RD7.5E-T2-AZ pinout, RD7.5E-T2-AZ application, or RD7.5E-T2-AZ equivalent, key selection factors include Zener voltage accuracy, power dissipation limit, thermal resistance in SSP package, and taping orientation (-T2) for automated placement compatibility.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under specified current conditions. It is characterized by a nominal Zener voltage of 7.5 V at test current IZT = 5 mA, with dynamic impedance of 15 Ω typical at that point.
The SC-76 (SSP) package provides low thermal resistance (RθJA ≈ 400 °C/W) and supports reflow soldering. The -T2 suffix denotes tape-and-reel orientation where the cathode band faces the sprocket hole side, critical for pick-and-place alignment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.5 V ±5% at IZT = 5 mA - defines stable regulation point for reference or clamp circuits |
| Power Dissipation (PZM) | 500 mW - maximum continuous DC power before thermal derating begins |
| Reverse Leakage (IR) | ≤5 µA at 6.0 V - ensures minimal quiescent current in standby clamp applications |
| Zener Impedance (ZZT) | 15 Ω typical at 5 mA - determines output voltage stability under load variation |
| Package | SC-76 (SSP) - 1.6 × 0.8 × 0.6 mm SMD footprint compatible with JEDEC MS-012 standards |
| Taping Format | -T2 orientation - cathode band aligned toward sprocket holes for correct automated placement |
Pinout & Package
SC-76 (SSP) is a 2-terminal surface-mount package with anode and cathode on opposite ends; polarity marked by a cathode band on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential node in Zener operation | Must be held at ≤ (VZ − 0.7 V) to avoid forward conduction during regulation |
| Cathode | Current exit terminal in forward bias; connected to higher-potential node in Zener operation | Marked by visible band; ties to regulated voltage rail or clamping node |
Key Features
| Feature | Design Value |
|---|---|
| Precision voltage regulation | ±5% VZ tolerance enables use in 8-bit ADC references and sensor biasing without trimming |
| Low-leakage clamping | 5 µA max IR at 6 V allows reliable overvoltage protection in battery-powered IoT nodes |
| Thermally optimized SMD package | SC-76 (SSP) footprint supports 0.3 mm pitch reflow and achieves <100 °C/W RθJC in PCB designs |
| Automated assembly ready | -T2 taping orientation ensures consistent cathode registration for high-yield pick-and-place at >20,000 UPH |
Applications
| Industrial Sensor Signal Conditioning | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode providing fixed 7.5 V reference to op-amp bias network. Use Value: Tight ±5% VZ tolerance eliminates need for external trimming, reducing BOM count and calibration time. | Use Scenario: Protecting 5 V USB data lines from transient surges exceeding 6 V. IC Role / Device Role / Timing Role: Shunt clamp limiting line voltage to safe level before transceiver IC input. Use Value: 500 mW power rating sustains 100 ms surge events per IEC 61000-4-5 Level 2 without degradation. |
| Low-Power RTC Backup Supply | Microcontroller Reset Circuit Reference |
Use Scenario: Biasing supercapacitor charging circuit in coin-cell–backed real-time clock modules. IC Role / Device Role / Timing Role: Voltage reference setting charge termination threshold for backup capacitor. Use Value: 5 µA max reverse leakage minimizes self-discharge, extending backup runtime by >15% vs. ±10% Zeners. | Use Scenario: Generating precise reset threshold for 3.3 V microcontrollers with internal brown-out detection. IC Role / Device Role / Timing Role: Zener-based comparator reference enabling 7.5 V system-level reset assertion. Use Value: 15 Ω ZZT ensures <10 mV droop under 1 mA load, maintaining reset accuracy across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C7V5 (ON Semiconductor) | Same 7.5 V ±5%, but in DO-35 glass package; 500 mW rating; 10 µA IR at 6 V | Through-hole mounting only; unsuitable for high-density SMT layouts | Select when legacy through-hole assembly or higher surge robustness is required |
| MMSZ5233B (Diodes Inc.) | 7.5 V ±5%, SOD-123 package; 500 mW; 1 µA IR at 6 V; ZZT = 17 Ω | Slightly lower leakage but larger footprint (2.7 × 1.4 mm vs. 1.6 × 0.8 mm) | Select when ultra-low leakage dominates over board space constraints |
Compared with BZX55C7V5 and MMSZ5233B, RD7.5E-T2-AZ offers the smallest SMD footprint and certified -T2 taping for high-speed placement-critical for miniaturized consumer electronics where board area and assembly yield are prioritized over marginal leakage reduction.
Availability
RD7.5E-T2-AZ is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB protection circuits, and low-power RTC modules requiring stable component supply and verified tape-and-reel compatibility.
Supply support for RD7.5E-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 semiconductor pioneer known for high-reliability discrete devices and early integrated circuits before merging into Renesas Electronics in 2010.
The RD-series Zener diodes were designed for precision voltage referencing in compact analog subsystems, emphasizing tight tolerance, repeatable thermal performance, and automated assembly readiness.
FAQ
What is the Zener voltage tolerance of RD7.5E-T2-AZ?
The RD7.5E-T2-AZ has a Zener voltage tolerance of ±5% at 5 mA test current, meaning its actual breakdown voltage falls between 7.125 V and 7.875 V under standard operating conditions. This tolerance is guaranteed per NEC's original specification and verified in production screening. RD7.5E-T2-AZ maintains this accuracy across −55°C to +150°C junction temperature range.
Is RD7.5E-T2-AZ compatible with lead-free reflow soldering?
Yes, RD7.5E-T2-AZ is qualified for lead-free reflow soldering per JEDEC J-STD-020. Its SC-76 (SSP) package withstands peak temperatures up to 260°C for 10 seconds. The device's internal construction and passivation ensure no parametric shift or delamination after standard Pb-free thermal profiles. RD7.5E-T2-AZ remains fully functional post-reflow.
What does the "-T2" suffix indicate in RD7.5E-T2-AZ?
"-T2" specifies the tape-and-reel orientation: the cathode band faces the sprocket hole side of the carrier tape. This orientation ensures correct rotational alignment during automated pick-and-place. RD7.5E-T2-AZ differs from -T1 variants, which orient the cathode band toward the tape edge. Using the wrong taping type may cause placement errors or reversed polarity.
Can RD7.5E-T2-AZ replace a 7.5 V Zener in a 10 mA regulation circuit?
RD7.5E-T2-AZ is rated for 500 mW maximum power, supporting up to ~66 mA at 7.5 V before exceeding thermal limits. At 10 mA, power dissipation is 75 mW-well within rating. However, Zener impedance rises above 5 mA, so regulation accuracy degrades slightly. RD7.5E-T2-AZ performs best near its 5 mA test point; for 10 mA use, verify VZ drift and thermal rise in final layout.
Does RD7.5E-T2-AZ have AEC-Q200 qualification?
No, RD7.5E-T2-AZ was not subjected to AEC-Q200 stress testing and carries no automotive qualification. It meets industrial-grade reliability standards per NEC's original specifications, including 1000-hour HTOL and temperature cycling. For automotive applications, RD7.5E-T2-AZ requires additional system-level validation; consult Aetrix for qualified alternatives like DZ2J7.5B0L.
RD7.5E-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:
- -
RD7.5E-T2-AZ FAQ
1.How can I place an order for RD7.5E-T2-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD7.5E-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 RD7.5E-T2-AZ reliable?
The price and inventory of RD7.5E-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 RD7.5E-T2-AZ is usually 5 days.
3.What payment methods are accepted for RD7.5E-T2-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD7.5E-T2-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD7.5E-T2-AZ?
RD7.5E-T2-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD7.5E-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 RD7.5E-T2-AZ?
For technical support, including RD7.5E-T2-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD7.5E-T2-AZ requirements.
6.How does Aetrix verify that RD7.5E-T2-AZ is sourced from the original manufacturer or authorized distributors?
All RD7.5E-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 RD7.5E-T2-AZ meets industry standards.
7.What is the process for return or replacement of RD7.5E-T2-AZ?
All RD7.5E-T2-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD7.5E-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 RD7.5E-T2-AZ part is unused and in its original packaging.
Return procedure for RD7.5E-T2-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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