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Renesas RD13ES-AZ
- Part No.:
- RD13ES-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD13ES-AZ.pdf
- Description:
- DIODE ZENER
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Inventory:8,650
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Product details
Overview
RD13ES-AZ from Renesas Electronics is a 13 V, ±5% tolerance, 400 mW glass-encapsulated Zener diode in DO-34 package with DHD (Double Heatsink Diode) construction. It delivers stable voltage regulation at 5 mA test current, exhibits 10 Ω dynamic impedance at 5 mA, and supports surge reverse power up to 100 W (10 µs pulse), commonly used in precision reference and overvoltage protection circuits.
For engineers reviewing the RD13ES-AZ datasheet, RD13ES-AZ pinout, RD13ES-AZ application, or RD13ES-AZ equivalent, this page provides verified electrical parameters, thermal behavior, JEDEC DO-34 terminal mapping, real-world use cases in voltage clamping and constant-current biasing, and two validated alternative Zener diodes with documented parameter differences.
Technical Context
The RD13ES-AZ operates as a silicon planar Zener diode with sharp reverse breakdown at nominal 13 V, designed for stable DC voltage reference and transient suppression. Its DHD construction enables enhanced thermal dissipation through dual heatsinking paths in the DO-34 glass body, supporting continuous 400 mW operation at 25°C ambient and derated performance up to 175°C junction temperature.
It complies with E24 standard zener voltage grading and is characterized with 0.2 µA maximum reverse leakage at 10 V (VR), 10 Ω typical dynamic impedance (ZZ) at 5 mA, and a positive temperature coefficient of +6.0 mV/°C - confirmed in Fig. 9 of D13935EJ7V0DS - enabling predictable drift compensation in analog reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 12.18–13.62 V at IZ = 5 mA - defines tight 13 V ±5% regulation window for precision references |
| Power Dissipation (P) | 400 mW at TA = 25°C - sets maximum continuous DC power handling on standard PCB layouts |
| Dynamic Impedance (ZZ) | 10 Ω max at IZ = 5 mA - ensures low AC impedance for stable regulation under small-signal load variation |
| Reverse Leakage (IR) | 0.2 µA max at VR = 10 V - guarantees minimal standby current in high-impedance bias networks |
| Surge Power (PRSM) | 100 W non-repetitive, t = 10 µs - enables robust transient suppression without device failure |
| Junction Temperature (Tj) | –65 to +175°C - supports operation in industrial environments with wide ambient swings |
| Package | DO-34 (JEDEC) - 2.4 mm max body length, 5 mm lead pitch, glass-sealed, axial-leaded for through-hole mounting |
Pinout & Package
RD13ES-AZ uses the standard DO-34 axial package: cathode indicated by black band; leads are unmarked anode and banded cathode terminals. The device is mounted vertically or horizontally on PCBs with 5 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener reference ground node | Connected to circuit common or lower-potential rail; forms return path during reverse breakdown |
| Cathode | Zener breakdown terminal / regulated output node | Marked with black band; supplies stable 13 V reference when reverse-biased above VZ |
Key Features
| Feature | Design Value |
|---|---|
| DHD construction | Dual heatsink geometry reduces thermal resistance, enabling full 400 mW rating in compact DO-34 form factor |
| Planar process | Ensures consistent breakdown characteristics, low parameter spread, and improved long-term stability vs. diffused junctions |
| E24 voltage grading | Guarantees precise 13 V selection within standardized resistor/Zener value series for design compatibility |
| DO-34 glass seal | Provides hermetic reliability, moisture resistance, and compatibility with wave soldering at 260°C peak |
Applications
| Power Supply Reference | Voltage Clamping |
|---|---|
Use Scenario: Providing stable 13 V reference for op-amp feedback networks and ADC voltage references in industrial sensor signal conditioning modules. IC Role / Device Role / Timing Role: Zener reference diode supplying precise DC bias point for analog front-end circuitry. Use Value: Delivers ±5% voltage accuracy and <10 Ω dynamic impedance to minimize reference drift under varying load currents. | Use Scenario: Protecting microcontroller I/O pins from ESD and inductive switching transients in motor drive control boards. IC Role / Device Role / Timing Role: Shunt clamp limiting voltage excursions to ≤13.62 V during fast-rising surges. Use Value: Absorbs 100 W non-repetitive surges (10 µs) without degradation, preserving downstream logic integrity. |
| Constant Current Bias | Waveform Shaping |
Use Scenario: Establishing fixed bias current for LED drivers and transistor amplifiers in telecom line interface cards. IC Role / Device Role / Timing Role: Series-pass Zener element setting ILED ≈ (VCC – 13 V)/Rset with low temperature drift (+6.0 mV/°C). Use Value: Enables predictable current sourcing across –40°C to +85°C ambient due to known, linear VZ temperature coefficient. | Use Scenario: Clipping audio signal peaks in analog mixer outputs to prevent amplifier saturation. IC Role / Device Role / Timing Role: Bidirectional waveform limiter using back-to-back RD13ES-AZ and standard diode for symmetrical ±13 V clipping. Use Value: Sharp 13 V knee and low ZZ ensure clean, repeatable clipping thresholds without rounding or hysteresis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, ±5%, 1000 mW rating, DO-41 package, 22 Ω ZZ @ 21 mA | Higher power, higher ZZ, larger footprint - suited for higher-current regulation but less precise at low IZ | Select when >400 mW continuous dissipation or DO-41 board layout is required |
| BZX55-C13 | 13 V nominal, ±5%, 500 mW rating, DO-35 package, 20 Ω ZZ @ 5 mA | Same VZ, higher P, slightly higher ZZ, smaller DO-35 body - better for space-constrained boards needing margin | Select when tighter PCB area budget exists and 500 mW headroom justifies DO-35 rework |
Compared with RD13ES-AZ, 1N4742A offers higher power but looser low-current regulation; BZX55-C13 matches VZ and tolerance while increasing power rating and reducing package size - both require layout verification due to differing footprints and thermal profiles.
Availability
RD13ES-AZ is available at Aetrix Electronics and suitable for industrial power supply reference, analog signal conditioning, and overvoltage protection requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for RD13ES-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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and memory solutions for automotive, industrial, and consumer applications.
RD13ES-AZ belongs to the legacy NEC RDx.xES Zener diode family, engineered for high-stability voltage reference and transient suppression in cost-sensitive, space-constrained industrial equipment.
FAQ
What is the exact zener voltage range for RD13ES-AZ at 5 mA test current?
The RD13ES-AZ has a guaranteed zener voltage range of 12.18 V to 13.62 V when measured at IZ = 5 mA and TA = 25°C, per the "AB" suffix row in Table on page 3 of D13935EJ7V0DS. This ±5% tolerance band ensures predictable regulation in precision analog circuits where RD13ES-AZ serves as a stable reference node.
Does RD13ES-AZ have a specified temperature coefficient, and how does it affect circuit performance?
Yes, RD13ES-AZ exhibits a positive zener voltage temperature coefficient of +6.0 mV/°C, as confirmed in Fig. 9 of its datasheet. This means its VZ increases linearly with junction temperature - critical for applications like temperature-compensated references where RD13ES-AZ may be paired with negative-TC components to achieve net zero drift.
Can RD13ES-AZ be used in surface-mount designs?
No - RD13ES-AZ is exclusively packaged in the axial DO-34 glass case with radial leads, intended for through-hole mounting only. It lacks SMD-compatible terminations or tape-and-reel packaging. For surface-mount equivalents, consider SOD-123 or SOD-323 packaged Zeners with matching VZ and power ratings, not RD13ES-AZ itself.
What is the maximum allowable surge reverse power for RD13ES-AZ, and under what conditions?
RD13ES-AZ supports a non-repetitive surge reverse power of 100 W at pulse width t = 10 µs, as defined in Absolute Maximum Ratings and illustrated in Fig. 10 of D13935EJ7V0DS. This rating assumes single-event transients; repetitive surges require derating based on thermal recovery time shown in Fig. 11's transient impedance curve.
Is RD13ES-AZ compliant with RoHS and lead-free soldering requirements?
Yes - RD13ES-AZ meets EU RoHS Directive requirements for restricted substances. Its DO-34 glass package and internal metallization are compatible with lead-free wave soldering processes up to 260°C peak temperature, as confirmed in Renesas' environmental compliance documentation referenced in the datasheet footer.
RD13ES-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:
- -
RD13ES-AZ FAQ
1.How can I place an order for RD13ES-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD13ES-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 RD13ES-AZ reliable?
The price and inventory of RD13ES-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD13ES-AZ is usually 5 days.
3.What payment methods are accepted for RD13ES-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD13ES-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD13ES-AZ?
RD13ES-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD13ES-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 RD13ES-AZ?
For technical support, including RD13ES-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD13ES-AZ requirements.
6.How does Aetrix verify that RD13ES-AZ is sourced from the original manufacturer or authorized distributors?
All RD13ES-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 RD13ES-AZ meets industry standards.
7.What is the process for return or replacement of RD13ES-AZ?
All RD13ES-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD13ES-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 RD13ES-AZ part is unused and in its original packaging.
Return procedure for RD13ES-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD13ES-AZ Tags
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