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Renesas RD36JS-T1-AZ
- Part No.:
- RD36JS-T1-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD36JS-T1-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
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Product details
Overview
RD36JS-T1-AZ from Renesas Electronics is a 36 V, 400 mW DO-34 glass-sealed Zener diode with sharp breakdown characteristics, low noise (≤50 µV), and dynamic impedance of 300 Ω at 5 mA, used for precision voltage regulation in power supply reference circuits.
For engineers reviewing the RD36JS-T1-AZ datasheet, RD36JS-T1-AZ pinout, RD36JS-T1-AZ application, or RD36JS-T1-AZ equivalent, this component serves as a stable, low-noise voltage reference in analog signal conditioning, DC-DC feedback loops, and overvoltage protection circuits where tight tolerance and thermal stability are required.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with a nominal Zener voltage of 36 V (AB2 suffix: 35.07–36.87 V), specified at 5 mA test current. Its sharp knee characteristic ensures predictable conduction onset, and its low noise performance supports high-fidelity reference applications.
Thermal resistance from junction-to-ambient is 375 °C/W on standard 3 mm × 3 mm copper land (0.035 mm thick), and it maintains stable operation up to 175 °C junction temperature. The device complies with JEDEC DO-34 mechanical outline and E24 voltage standardization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 35.07–36.87 V at IZ = 5 mA - defines precise regulation window for feedback or clamping |
| Power Dissipation P | 400 mW at TA = 25 °C - sets maximum continuous DC power handling in standard PCB layout |
| Dynamic Impedance Zz | 300 Ω at IZ = 5 mA - indicates low AC impedance for stable regulation under small-signal load variation |
| Reverse Current IR | ≤0.1 µA at VR = 27 V - ensures minimal leakage in high-impedance bias networks |
| Noise Level en | ≤50 µV (10–500 kHz) - enables use in low-noise analog references without added filtering |
| Temperature Coefficient γZ | +0.06 %/°C - provides predictable positive drift for compensation design in wide-temperature environments |
| Surge Power PRSM | 2.4 W (t = 10 µs) - supports transient overvoltage suppression in pulse-limited protection schemes |
Pinout & Package
DO-34 glass axial package (JEDEC standard); cathode indicated by blue band; body length ≤2.4 mm; lead diameter 0.4 mm; 2-terminal unidirectional device.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in reverse-bias configuration | Connected to lower-potential side of Zener string; forms return path for regulation current |
| Cathode | Zener breakdown terminal / Regulated output node | Connected to regulated rail or error amplifier input; carries full Zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Low noise performance | ≤50 µV RMS (10–500 kHz) - preserves signal integrity in precision analog references |
| Sharp breakdown knee | Dynamic knee impedance Zzk = 300 Ω - ensures rapid, repeatable turn-on for accurate clamping |
| E24-standardized voltage | VZ tolerance aligned to E24 series - simplifies BOM consolidation across 33–39 V Zener variants |
| DO-34 glass seal | Hermetic glass-to-metal construction - guarantees long-term parameter stability and moisture resistance |
| High surge capability | 2.4 W non-repetitive surge rating (10 µs) - withstands short-duration transients without degradation |
Applications
| Power Supply Voltage Reference | Analog Signal Clipping |
|---|---|
Use Scenario: Providing stable 36 V reference for isolated DC-DC converter feedback networks in industrial power modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to fix reference potential at optocoupler input or error amplifier node. Use Value: Enables ±2% output regulation accuracy over –40 to +85 °C ambient due to predictable γZ and low Zz. | Use Scenario: Limiting peak amplitude of sensor output signals before ADC sampling in automotive engine control units. IC Role / Device Role / Timing Role: Bidirectional waveform clipper (with series diode) defining upper clamp at 36 V + VF. Use Value: Prevents ADC saturation using sharp knee behavior and sub-0.1 µA leakage below 27 V. |
| Overvoltage Protection | Current Source Biasing |
Use Scenario: Safeguarding microcontroller I/O pins against accidental 48 V bus coupling in factory automation PLC modules. IC Role / Device Role / Timing Role: Shunt protector activated above 36.87 V to divert fault current to ground. Use Value: Limits pin voltage to safe level within 100 ns via 2.4 W surge rating, avoiding latch-up or oxide damage. | Use Scenario: Establishing constant bias current for JFET-based current mirrors in instrumentation amplifiers. IC Role / Device Role / Timing Role: Stable voltage source across emitter degeneration resistor to set IREF. Use Value: Delivers <10 ppm/°C current drift using low-noise, thermally compensated VZ characteristic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4749A-TAP | 36 V nominal, 1 W rating, DO-41 package, Zz = 15 Ω at 33 mA | Higher power and lower impedance but larger footprint and different thermal profile | Preferred when >400 mW dissipation or <50 Ω dynamic impedance is required; not drop-in due to DO-41 size |
| BZX55-C36 | 36 V nominal, 500 mW, DO-35 package, Zz = 50 Ω at 5 mA, higher leakage (≤5 µA) | Lower Zz but significantly higher IR compromises high-impedance bias networks | Acceptable for general-purpose regulation where leakage <0.1 µA is not critical; DO-35 not mechanically interchangeable with DO-34 |
Compared with 1N4749A-TAP and BZX55-C36, RD36JS-T1-AZ offers superior low-noise performance and tighter leakage control in the compact DO-34 form factor, making it optimal for space-constrained, low-drift analog designs despite its moderate dynamic impedance.
Availability
RD36JS-T1-AZ is available at Aetrix Electronics and suitable for industrial power supplies, analog sensor interfaces, overvoltage protection circuits, and precision reference designs requiring stable component supply and long-term parametric consistency.
Supply support for RD36JS-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
Renesas Electronics Corporation is a global semiconductor manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and system-on-chip solutions for industrial, automotive, and infrastructure markets.
The RDJS series Zener diodes were developed by Renesas (formerly NEC) to deliver high-stability, low-noise voltage references in miniature glass packages for cost-sensitive yet performance-critical analog subsystems.
FAQ
What is the exact Zener voltage range for RD36JS-T1-AZ at 5 mA?
The RD36JS-T1-AZ has a guaranteed Zener voltage range of 35.07 V to 36.87 V when tested at IZ = 5 mA and TA = 25 °C, corresponding to the AB2 suffix variant specified in Renesas' D13937EJ5V0DS00 datasheet. This range reflects manufacturing tolerance per E24 standard and ensures compatibility with 36 V nominal reference designs.
Is RD36JS-T1-AZ suitable for surface-mount assembly?
No, RD36JS-T1-AZ uses a DO-34 axial glass package with radial leads and is designed for through-hole mounting only. It lacks solder pads or terminations compatible with reflow or wave soldering processes. For SMD alternatives, consider Renesas' NZ9F36V or similar SOD-123 packaged Zeners - RD36JS-T1-AZ itself requires manual or selective soldering in through-hole PCB layouts.
What is the maximum allowable reverse current before breakdown in RD36JS-T1-AZ?
At VR = 27 V, the RD36JS-T1-AZ exhibits a maximum reverse current IR of 0.1 µA, as specified in the Electrical Characteristics table. This ultra-low leakage ensures minimal loading in high-impedance reference nodes and supports stable biasing in precision op-amp circuits without introducing offset errors.
Does RD36JS-T1-AZ have automotive qualification?
No, RD36JS-T1-AZ is rated as a Standard quality grade device per Renesas' classification, intended for computers, office equipment, and industrial robots - not for automotive applications. It does not meet AEC-Q200 stress testing requirements. For automotive-grade Zeners, Renesas offers the "A" suffix variants (e.g., RD36JS-AZ) with extended temperature screening and PPAP documentation.
How does the noise performance of RD36JS-T1-AZ compare to generic 36 V Zeners?
RD36JS-T1-AZ delivers ≤50 µV RMS noise (10–500 kHz), significantly lower than typical 36 V Zeners (often >100 µV). This is achieved via optimized DHD (Double Heatsink Diode) construction and low-noise epitaxial process, making RD36JS-T1-AZ suitable for high-resolution data acquisition and low-drift instrumentation where reference noise directly impacts system ENOB.
RD36JS-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:
- -
RD36JS-T1-AZ FAQ
1.How can I place an order for RD36JS-T1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD36JS-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 RD36JS-T1-AZ reliable?
The price and inventory of RD36JS-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 RD36JS-T1-AZ is usually 5 days.
3.What payment methods are accepted for RD36JS-T1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD36JS-T1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD36JS-T1-AZ?
RD36JS-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD36JS-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 RD36JS-T1-AZ?
For technical support, including RD36JS-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD36JS-T1-AZ requirements.
6.How does Aetrix verify that RD36JS-T1-AZ is sourced from the original manufacturer or authorized distributors?
All RD36JS-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 RD36JS-T1-AZ meets industry standards.
7.What is the process for return or replacement of RD36JS-T1-AZ?
All RD36JS-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD36JS-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 RD36JS-T1-AZ part is unused and in its original packaging.
Return procedure for RD36JS-T1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD36JS-T1-AZ Tags
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