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Renesas RD13E-TB-AZ
- Part No.:
- RD13E-TB-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD13E-TB-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
RD13E-TB-AZ from NEC Corporation is a silicon epitaxial planar Zener diode with 13 V nominal breakdown voltage, 500 mW power dissipation, and ±5% voltage tolerance, designed for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the RD13E-TB-AZ datasheet, RD13E-TB-AZ pinout, RD13E-TB-AZ application, or RD13E-TB-AZ equivalent, key selection criteria include Zener voltage accuracy, temperature coefficient, dynamic impedance, maximum reverse current at rated voltage, and SC-76 (SSP) package compatibility with automated SMT placement.
Technical Context
This Zener diode operates in reverse-bias breakdown mode with a specified test current of 5 mA and exhibits a typical dynamic impedance of 20 Ω at that condition. Its temperature coefficient is +4.5 mV/°C near 13 V, supporting stable reference performance across industrial temperature ranges.
The RD13E-TB-AZ uses an epitaxial planar structure to ensure consistent breakdown characteristics and low leakage current - maximum IR is 100 nA at 10 V reverse bias. It is optimized for use in feedback networks of voltage regulators and as a shunt reference in sensor signal conditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±5% at IZ = 5 mA - defines precise regulation point for reference circuits |
| Power Dissipation (PZ) | 500 mW - limits continuous thermal load in compact SC-76 packages |
| Dynamic Impedance (ZZ) | 20 Ω max at IZ = 5 mA - determines output voltage stability under varying load current |
| Reverse Leakage (IR) | 100 nA max at VR = 10 V - ensures minimal error current in high-impedance reference nodes |
| Temperature Coefficient (TC) | +4.5 mV/°C - enables predictable VZ drift compensation in temperature-sensitive designs |
| Test Current (IZ) | 5 mA - standard operating point for specification compliance and circuit design alignment |
Pinout & Package
RD13E-TB-AZ is housed in the SC-76 (SSP) surface-mount package - a 2-pin, small-outline plastic case measuring 1.6 mm × 0.8 mm × 0.7 mm with gull-wing leads, optimized for high-density PCB layouts and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward conduction terminal / cathode reference node in shunt configuration | Connected to lower potential side; reverse-biased operation requires cathode at higher potential |
| Cathode (K) | Breakdown voltage reference terminal / input node in shunt regulator | Applied reverse bias relative to anode to activate Zener conduction at 13 V |
Key Features
| Feature | Design Value |
|---|---|
| Precision Zener voltage tolerance | ±5% at 5 mA - reduces calibration burden in factory-trimmed analog systems |
| Low dynamic impedance | 20 Ω max - maintains <10 mV output variation across 1 mA load current changes |
| Stable temperature coefficient | +4.5 mV/°C - supports predictable drift modeling for ±25°C ambient compensation |
| Ultra-low reverse leakage | 100 nA max at 10 V - preserves accuracy in microamp-level bias networks |
| SC-76 (SSP) packaging | 1.6 × 0.8 mm footprint - enables placement on 0.5 mm pitch PCBs with standard SMT equipment |
Applications
| Industrial Sensor Reference | Portable Device Voltage Clamp |
|---|---|
Use Scenario: Providing stable 13 V reference for bridge amplifier excitation in strain-gauge transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference establishing fixed bias point for instrumentation amplifier input stage. Use Value: ±5% VZ tolerance and +4.5 mV/°C TC enable <0.1% full-scale error over –25°C to +85°C without trimming. | Use Scenario: Clamping surge-induced overvoltage on USB VBUS line during hot-plug events in battery-powered peripherals. IC Role / Device Role / Timing Role: Transient voltage suppressor operating in Zener breakdown to divert excess energy to ground. Use Value: 500 mW power rating and 20 Ω ZZ allow safe clamping of 100 mA surges while limiting clamp voltage to ≤14.5 V. |
| Programmable Logic Supply Monitor | Optocoupler Feedback Regulator |
Use Scenario: Monitoring 12 V rail integrity in FPGA configuration circuits before enabling clock distribution. IC Role / Device Role / Timing Role: Threshold detector using reverse-biased RD13E-TB-AZ to trigger reset logic when supply drops below 12.35 V. Use Value: 100 nA IR ensures negligible current draw on monitored rail, preserving low-power sleep states. | Use Scenario: Setting regulated output voltage in flyback converter secondary-side feedback loop via optocoupler-coupled TL431 replacement. IC Role / Device Role / Timing Role: Precision shunt reference replacing TL431 where lower cost and simpler biasing are required. Use Value: Matched 13 V VZ and 20 Ω ZZ support stable 5–24 V output regulation with <±1% line/load regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C13 | Same 13 V nominal VZ, but ±6% tolerance and 40 Ω ZZ at 5 mA | Higher dynamic impedance limits use in high-accuracy references | Acceptable for general-purpose clamping where ±6% VZ and >30 mV load regulation are acceptable |
| MMSZ5242B | 13 V VZ with ±5% tolerance, but 350 mW PZ and 30 Ω ZZ | Lower power rating restricts peak surge handling in transient suppression | Preferred where smaller footprint (SOD-123) is critical and 350 mW suffices |
Compared with BZX84-C13 and MMSZ5242B, RD13E-TB-AZ offers superior dynamic impedance (20 Ω vs. ≥30 Ω) and higher power margin (500 mW), making it optimal for precision regulation and moderate-energy transient clamping where SC-76 placement is supported.
Availability
RD13E-TB-AZ is available at Aetrix Electronics and suitable for industrial sensor references, portable device voltage clamps, and programmable logic supply monitors requiring stable component supply and long-term obsolescence management.
Supply support for RD13E-TB-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 prior to its integration into Renesas Electronics.
The RD13E-TB-AZ belongs to NEC's legacy Zener diode family engineered for high-stability voltage reference and regulation in space-constrained, low-power analog systems.
FAQ
What is the Zener voltage tolerance of RD13E-TB-AZ?
The RD13E-TB-AZ has a Zener voltage tolerance of ±5% at the specified test current of 5 mA. This means its actual breakdown voltage falls between 12.35 V and 13.65 V under standard test conditions. That tolerance directly impacts system-level accuracy in reference and regulation applications, and the RD13E-TB-AZ's tight spec supports untrimmed analog designs without post-assembly calibration.
What package type does RD13E-TB-AZ use?
RD13E-TB-AZ uses the SC-76 (SSP) surface-mount package - a 2-pin, gull-wing leaded plastic case measuring 1.6 mm × 0.8 mm × 0.7 mm. This compact footprint supports high-density PCB layouts and is compatible with standard reflow soldering profiles. The RD13E-TB-AZ's SC-76 designation is confirmed in NEC's official taping documentation and matches reel packaging specifications for automated assembly.
What is the maximum power dissipation rating for RD13E-TB-AZ?
The RD13E-TB-AZ is rated for a maximum power dissipation of 500 mW under specified thermal conditions. This rating applies at 25°C ambient temperature with adequate PCB copper area for heat spreading. Exceeding this limit risks thermal runaway or parametric shift, so the RD13E-TB-AZ must be used within derated boundaries in elevated ambient environments per its thermal resistance profile.
How does the temperature coefficient affect RD13E-TB-AZ performance?
The RD13E-TB-AZ has a positive temperature coefficient of +4.5 mV/°C near its 13 V breakdown point. This means its Zener voltage increases predictably with rising junction temperature. Engineers can use this linear drift behavior to compensate for other temperature-dependent components in the same system, and the RD13E-TB-AZ's stable TC supports accurate modeling across –25°C to +85°C operating ranges.
Is RD13E-TB-AZ suitable for transient voltage suppression?
Yes, RD13E-TB-AZ is suitable for low-energy transient voltage suppression due to its 500 mW power rating and 20 Ω dynamic impedance. It can safely clamp short-duration overvoltages up to ~14.5 V under 100 mA surge conditions. While not a dedicated TVS device, the RD13E-TB-AZ's robustness in reverse breakdown makes it effective in cost-sensitive, low-power clamping roles where the RD13E-TB-AZ's precision and stability are also beneficial.
RD13E-TB-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:
- -
RD13E-TB-AZ FAQ
1.How can I place an order for RD13E-TB-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD13E-TB-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 RD13E-TB-AZ reliable?
The price and inventory of RD13E-TB-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD13E-TB-AZ is usually 5 days.
3.What payment methods are accepted for RD13E-TB-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD13E-TB-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD13E-TB-AZ?
RD13E-TB-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD13E-TB-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 RD13E-TB-AZ?
For technical support, including RD13E-TB-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD13E-TB-AZ requirements.
6.How does Aetrix verify that RD13E-TB-AZ is sourced from the original manufacturer or authorized distributors?
All RD13E-TB-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 RD13E-TB-AZ meets industry standards.
7.What is the process for return or replacement of RD13E-TB-AZ?
All RD13E-TB-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD13E-TB-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 RD13E-TB-AZ part is unused and in its original packaging.
Return procedure for RD13E-TB-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD13E-TB-AZ Tags
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