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Renesas RD11JS-T1-AZ
- Part No.:
- RD11JS-T1-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD11JS-T1-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:14,000
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Product details
Overview
RD11JS-T1-AZ from Renesas Electronics is a 400 mW, DO-34 glass-sealed Zener diode with nominal zener voltage 11.10 V to 11.56 V (AB3 suffix), dynamic impedance ≤100 Ω at 5 mA, reverse current ≤0.1 µA at 8.0 V, and sharp breakdown characteristic for precision voltage reference in low-noise analog circuits.
For engineers reviewing the RD11JS-T1-AZ datasheet, RD11JS-T1-AZ pinout, RD11JS-T1-AZ application, or RD11JS-T1-AZ equivalent, this component serves as a stable shunt regulator in power supply feedback loops, overvoltage protection clamps, and waveform shaping circuits where tight voltage tolerance and low noise are critical.
Technical Context
The RD11JS-T1-AZ operates as a silicon planar Zener diode using DHD (Double Heatsink Diode) construction in a miniature DO-34 package. It achieves sharp breakdown via controlled doping and junction geometry, enabling stable regulation at test current Iz = 5 mA with knee impedance Zzk ≤100 Ω.
Its thermal resistance Rth-JA is 375 °C/W on standard 3 mm × 3 mm copper pad, and it maintains specified performance across –65 °C to +175 °C storage temperature range. The device exhibits a positive zener voltage temperature coefficient of +0.04 %/°C at 11 V, supporting predictable drift behavior in compensated designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Vz | 11.10–11.56 V (AB3 suffix, tested at 5 mA); defines precise clamping threshold for voltage regulation |
| Power Dissipation P | 400 mW at TA = 25 °C; sets maximum continuous DC power handling before thermal derating |
| Dynamic Impedance Zz | ≤100 Ω at Iz = 5 mA; ensures minimal output voltage variation under load current changes |
| Reverse Current IR | ≤0.1 µA at VR = 8.0 V; guarantees low leakage in high-impedance bias networks |
| Surge Reverse Power PRSM | 2.4 W for t = 10 µs; supports transient overvoltage suppression without failure |
| Junction Temperature Tj | 175 °C maximum; enables operation in elevated ambient environments with proper PCB thermal design |
| Noise Level en | ≤20 µV (10–500 kHz); critical for low-noise reference applications such as sensor signal conditioning |
Pinout & Package
RD11JS-T1-AZ uses a DO-34 glass-sealed axial package (JEDEC standard), with cathode indicated by blue band. Total body length ≤2.4 mm, diameter φ ≈ 1.8 mm. Leads are tinned copper, suitable for through-hole mounting and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential node in reverse-biased Zener configuration; carries forward current up to 150 mA |
| Cathode | Zener breakdown terminal | Marked with blue band; connected to higher potential node; establishes regulated voltage drop when reverse biased |
Key Features
| Feature | Design Value |
|---|---|
| Low noise performance | en ≤20 µV (10–500 kHz), enabling use in precision analog references and sensor front-ends |
| Sharp breakdown characteristic | Defined knee region with Zzk ≤100 Ω, ensuring stable regulation onset without soft turn-on |
| DO-34 glass package | Hermetically sealed, moisture-resistant construction with proven long-term reliability in industrial environments |
| E24-standard zener voltage | Vz aligned to E24 series (11.1 V / 11.5 V options), simplifying BOM consolidation and design reuse |
| High surge capability | PRSM = 2.4 W (10 µs pulse), providing robustness against ESD and line transients in unprotected inputs |
Applications
| Power Supply Feedback Regulation | Overvoltage Protection Clamp |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulators or switching converter feedback paths. IC Role / Device Role / Timing Role: Shunt reference element setting precise error amplifier reference point. Use Value: Tight Vz tolerance (±2%) and low Zz ensure <±10 mV output deviation under load step changes. |
Use Scenario: Limiting input voltage to protect downstream ICs from transient overvoltage events. IC Role / Device Role / Timing Role: Fast-acting clamp activated above 11.56 V to divert excess current. Use Value: 2.4 W surge rating absorbs 10 µs transients without degradation, extending system MTBF. |
| Waveform Clipping Circuit | Reference Voltage Source |
Use Scenario: Hard-limiting AC signal peaks in audio or instrumentation signal chains. IC Role / Device Role / Timing Role: Bidirectional clipping element defining symmetrical upper/lower amplitude bounds. Use Value: Sharp breakdown and low noise preserve signal integrity while preventing amplifier saturation. |
Use Scenario: Generating stable 11.1 V reference for ADCs, DACs, or comparator thresholds. IC Role / Device Role / Timing Role: Passive voltage reference with minimal temperature-induced drift (+0.04 %/°C). Use Value: Low IR (≤0.1 µA) avoids loading high-impedance reference buffers, maintaining accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4740A | 10 V nominal Vz, 1 W power rating, DO-41 package, Zz = 20 Ω at 25 mA | Higher power but looser Vz tolerance (±5%), larger footprint, higher leakage (≤5 µA) | Select when higher surge energy absorption is required and board space allows DO-41 mounting. |
| BZX55C11 | 11 V nominal Vz, 500 mW rating, DO-35 package, Zz = 20 Ω at 5 mA, IR = 0.1 µA at 8.2 V | Similar Vz range and leakage, but DO-35 plastic package offers lower cost and RoHS compliance | Choose for cost-sensitive consumer designs where hermetic glass seal is not mandatory. |
Compared with RD11JS-T1-AZ, the 1N4740A delivers greater surge capacity but sacrifices voltage precision and noise performance; the BZX55C11 matches key electrical specs closely but trades glass-sealed reliability for plastic-package manufacturability and cost efficiency.
Availability
RD11JS-T1-AZ is available at Aetrix Electronics and suitable for power supply regulation, overvoltage protection, and precision reference applications requiring stable component supply, long-lifecycle support, and traceable sourcing for industrial control systems.
Supply support for RD11JS-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 leader specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The RD11JS-T1-AZ belongs to the RDxJS series of low-noise Zener diodes designed for precision voltage reference and clamping in industrial-grade analog circuits where stability, sharp breakdown, and hermetic reliability are essential.
FAQ
What is the exact zener voltage range for RD11JS-T1-AZ?
The RD11JS-T1-AZ has a guaranteed zener voltage range of 11.10 V to 11.56 V when tested at 5 mA (AB3 suffix). This specification is measured per the D13937EJ5V0DS00 datasheet and reflects the tightest tolerance option within the RD11JS family, making RD11JS-T1-AZ suitable for applications demanding high initial accuracy without post-production trimming.
Is RD11JS-T1-AZ compatible with lead-free reflow processes?
RD11JS-T1-AZ is a DO-34 glass-sealed axial diode intended for through-hole assembly and wave soldering. Its construction does not support standard lead-free reflow profiles (peak >260 °C); exposure to such temperatures risks glass-to-metal seal fracture. RD11JS-T1-AZ should be hand-soldered or wave-soldered using SnPb or low-temperature lead-free alloys (<240 °C peak).
Does RD11JS-T1-AZ have a specified temperature coefficient?
Yes - RD11JS-T1-AZ exhibits a positive zener voltage temperature coefficient of +0.04 %/°C at 11 V, as shown in Figure 6 of the D13937EJ5V0DS00 datasheet. This value enables predictable Vz drift over temperature and supports compensation in precision reference designs where ambient variation exceeds ±20 °C.
What is the maximum reverse current for RD11JS-T1-AZ at 8.0 V?
The maximum reverse current IR for RD11JS-T1-AZ is 0.1 µA at VR = 8.0 V, per the Electrical Characteristics table in the D13937EJ5V0DS00 datasheet. This ultra-low leakage ensures minimal error contribution in high-impedance voltage divider or bias networks, preserving accuracy in battery-powered or low-power sensor interfaces.
Can RD11JS-T1-AZ be used in place of RD11JS-T1?
RD11JS-T1-AZ is the standardized Renesas part number superseding earlier NEC-branded RD11JS-T1 variants. Both share identical electrical specifications, DO-34 packaging, and marking (blue cathode band). RD11JS-T1-AZ is fully backward-compatible and represents the current production version following the 2010 Renesas merger.
RD11JS-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:
- -
RD11JS-T1-AZ FAQ
1.How can I place an order for RD11JS-T1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD11JS-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 RD11JS-T1-AZ reliable?
The price and inventory of RD11JS-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 RD11JS-T1-AZ is usually 5 days.
3.What payment methods are accepted for RD11JS-T1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD11JS-T1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD11JS-T1-AZ?
RD11JS-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD11JS-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 RD11JS-T1-AZ?
For technical support, including RD11JS-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD11JS-T1-AZ requirements.
6.How does Aetrix verify that RD11JS-T1-AZ is sourced from the original manufacturer or authorized distributors?
All RD11JS-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 RD11JS-T1-AZ meets industry standards.
7.What is the process for return or replacement of RD11JS-T1-AZ?
All RD11JS-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD11JS-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 RD11JS-T1-AZ part is unused and in its original packaging.
Return procedure for RD11JS-T1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD11JS-T1-AZ Tags
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