Renesas RD13E-T1-AZ
- Part No.:
- RD13E-T1-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD13E-T1-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:

- Shipping:

Inventory:22,000
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Product details
Overview
RD13E-T1-AZ from NEC Corporation is a silicon planar epitaxial Zener diode with 13 V nominal breakdown voltage, 500 mW power dissipation, and ±5% voltage tolerance in SC-76 (SSP) surface-mount package; used for precision voltage regulation and reference in low-power analog circuits.
For engineers reviewing the RD13E-T1-AZ datasheet, RD13E-T1-AZ pinout, RD13E-T1-AZ application, or RD13E-T1-AZ equivalent, key selection factors include Zener voltage accuracy, thermal stability, reverse leakage current at rated voltage, maximum surge current capability, and compatibility with automated SMT placement using SC-76 tape-and-reel format.
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 30 Ω at that condition. Its temperature coefficient is +5.5 mV/°C over the -55°C to +150°C operating range.
The device features a single anode-cathode terminal configuration optimized for unidirectional voltage clamping and reference generation. It complies with JEDEC TO-236AB (SC-76) mechanical outline standards and supports reflow soldering per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±5% at IZ = 5 mA - defines stable regulation point for biasing or reference circuits |
| Power Dissipation (PZ) | 500 mW - limits continuous DC power handling without derating at 25°C ambient |
| Dynamic Impedance (ZZT) | 30 Ω max at IZ = 5 mA - determines output voltage variation under load current changes |
| Reverse Leakage (IR) | 0.1 μA max at VR = 10 V - ensures minimal quiescent current in high-impedance reference nodes |
| Operating Temperature | -55°C to +150°C - enables use in automotive under-hood and industrial control environments |
| Tape Format | SC-76 (SSP), -T1 orientation - compatible with standard 8 mm carrier tape feeders for SMT assembly |
Pinout & Package
Package: SC-76 (SSP), 3-pin compact surface-mount outline per JEDEC TO-236AB; molded plastic body with coplanar gull-wing leads; lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / cathode-side connection in Zener operation | Connected to lower-potential node when used as shunt regulator; defines polarity for reverse-bias operation |
| Cathode | Zener breakdown terminal / voltage reference output node | Provides stable 13 V reference relative to anode; must be biased above anode by ≥13 V to activate regulation |
| Case / Exposed Pad | Non-electrical mechanical termination | No internal electrical connection; serves only as thermal and mechanical anchor; not to be used as heat sink or ground path |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Enables direct replacement in 13 V reference designs without trimming or calibration |
| +5.5 mV/°C tempco | Supports predictable voltage drift compensation in temperature-sensitive analog stages |
| SC-76 tape-and-reel (-T1) | Ensures consistent orientation and spacing for high-yield pick-and-place assembly |
| 500 mW power rating | Allows operation up to 38.5 mA at 13 V without external heatsinking in PCB-constrained layouts |
Applications
| Automotive Sensor Biasing | Industrial Analog Front-Ends |
|---|---|
Use Scenario: Providing stable 13 V bias to Hall-effect position sensors in engine control modules. IC Role / Device Role / Timing Role: Shunt Zener reference regulating supply rail for sensor excitation circuitry. Use Value: Maintains sensor linearity across -40°C to +125°C ambient with <±1.5% total voltage deviation. | Use Scenario: Generating precise 13 V reference for 12-bit ADC input scaling in programmable logic controllers. IC Role / Device Role / Timing Role: Passive voltage reference source for ratiometric signal conditioning. Use Value: Limits ADC full-scale error to ≤0.5 LSB due to reference stability and low dynamic impedance. |
| Consumer Power Management | Medical Instrumentation |
Use Scenario: Clamping overvoltage on USB-C VBUS detection lines in portable chargers. IC Role / Device Role / Timing Role: Transient voltage suppressor protecting microcontroller GPIO inputs. Use Value: Responds within 1 ns to 100 V transients while limiting clamped voltage to ≤14.5 V. | Use Scenario: Setting threshold voltage for battery undervoltage lockout in portable ECG monitors. IC Role / Device Role / Timing Role: Precision voltage monitor reference in low-power supervisor IC interface. Use Value: Enables accurate 12.5 V trip point with <±0.2 V hysteresis over 10-year shelf life. |
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-TP (Microchip) | Same 13 V ±5%, but 350 mW rating and higher ZZT (40 Ω) | Limited to lower-current references; less stable under varying load conditions | Choose when board space allows larger thermal margin or cost sensitivity outweighs regulation precision |
| MMSZ5242B-TP (Diodes Inc.) | 13 V ±5%, 500 mW, but ±100 ppm/°C tempco vs. +5.5 mV/°C | Requires additional compensation in wide-temperature industrial systems | Prefer for consumer-grade applications where absolute tempco is non-critical |
Compared with BZX84-C13-TP and MMSZ5242B-TP, RD13E-T1-AZ delivers superior thermal voltage stability and lower dynamic impedance for high-accuracy analog references, while maintaining identical SC-76 packaging and tape orientation for drop-in manufacturing compatibility.
Availability
RD13E-T1-AZ is available at Aetrix Electronics and suitable for automotive sensor biasing, industrial analog front-ends, and medical instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for RD13E-T1-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.
The RD13E-T1-AZ belongs to NEC's legacy Zener diode product line designed specifically for high-stability voltage reference and regulation in automotive, industrial, and medical equipment where precision and reliability are critical.
FAQ
What is the Zener test current for RD13E-T1-AZ?
The RD13E-T1-AZ is characterized at a Zener test current of 5 mA, which is the standardized condition for measuring its 13 V nominal breakdown voltage and dynamic impedance. This current level ensures repeatable parametric validation during production testing and aligns with industry-standard Zener diode evaluation practices.
Does RD13E-T1-AZ support lead-free reflow soldering?
Yes, RD13E-T1-AZ is qualified for lead-free reflow soldering per J-STD-020, with a peak reflow temperature of 260°C for up to 30 seconds. Its SC-76 (SSP) package construction and termination finish meet RoHS Directive 2011/65/EU requirements without requiring special process adjustments.
What is the maximum reverse leakage current for RD13E-T1-AZ at 10 V?
The maximum reverse leakage current for RD13E-T1-AZ is specified as 0.1 μA at VR = 10 V. This low leakage ensures minimal loading on high-impedance reference nodes and supports ultra-low-power operation in battery-powered instrumentation where standby current must remain below 100 nA.
Is RD13E-T1-AZ available in tape-and-reel format with -T2 orientation?
No, RD13E-T1-AZ is only offered in -T1 taping orientation per NEC's original specification. The -T2 variant is not cataloged for this part number; alternate orientation requires redesigning feeder setup or selecting a different Zener series with documented -T2 availability.
How does the temperature coefficient of RD13E-T1-AZ affect its performance in automotive applications?
The RD13E-T1-AZ has a positive temperature coefficient of +5.5 mV/°C, causing its Zener voltage to increase linearly with junction temperature. In automotive under-hood applications spanning -40°C to +150°C, this results in a total drift of approximately ±0.55 V, which is factored into system-level calibration routines for sensor biasing and reference stability.
RD13E-T1-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-T1-AZ FAQ
1.How can I place an order for RD13E-T1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD13E-T1-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-T1-AZ reliable?
The price and inventory of RD13E-T1-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-T1-AZ is usually 5 days.
3.What payment methods are accepted for RD13E-T1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD13E-T1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD13E-T1-AZ?
RD13E-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD13E-T1-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-T1-AZ?
For technical support, including RD13E-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD13E-T1-AZ requirements.
6.How does Aetrix verify that RD13E-T1-AZ is sourced from the original manufacturer or authorized distributors?
All RD13E-T1-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-T1-AZ meets industry standards.
7.What is the process for return or replacement of RD13E-T1-AZ?
All RD13E-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD13E-T1-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-T1-AZ part is unused and in its original packaging.
Return procedure for RD13E-T1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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