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Renesas RD10ES-T4-AZ
- Part No.:
- RD10ES-T4-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD10ES-T4-AZ.pdf
- Description:
- DIODE ZENER 10V
- Quantity:
- Payment:
- Shipping:
Inventory:25,000
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Product details
Overview
RD10ES-T4-AZ from Renesas Electronics is a 10 V, 400 mW DO-34 glass-sealed Zener diode with DHD (Double Heatsink Diode) construction, ±5% zener voltage tolerance at 7 mA, 15 Ω dynamic impedance, and 0.2 µA reverse leakage at 7.6 V - used for precision voltage reference and surge suppression in power supply regulation circuits.
For engineers reviewing the RD10ES-T4-AZ datasheet, RD10ES-T4-Az pinout, RD10ES-T4-AZ application, or RD10ES-T4-AZ equivalent, this part serves as a stable, low-leakage, through-hole voltage clamp in industrial power rails, analog sensor biasing, and overvoltage protection where thermal robustness and JEDEC-standard DO-34 compatibility are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a nominal zener voltage of 10 V at test current IZ = 7 mA, exhibiting a temperature coefficient of +6.0 mV/°C and knee impedance ZZK ≤ 150 Ω at IZK = 0.5 mA. Its DHD construction enables enhanced thermal dissipation within the compact DO-34 package.
The device supports surge reverse power up to 100 W for 10 µs pulses and maintains junction temperature limits up to 175°C. It complies with E24 standard voltage grading and is rated for Standard quality grade applications including office equipment, industrial robots, and test instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.19–10.30 V at IZ = 7 mA - defines stable clamping threshold for voltage regulation |
| Power Dissipation (P) | 400 mW at TA = 25°C - sets maximum continuous DC power handling on standard PCB |
| Dynamic Impedance (ZZ) | 15 Ω typical at IZ = 7 mA - ensures minimal output voltage variation under load changes |
| Reverse Leakage (IR) | 0.2 µA max at VR = 7.6 V - guarantees low standby current in high-impedance bias networks |
| Surge Power Rating | 100 W non-repetitive, t = 10 µs - provides transient overvoltage immunity without failure |
| Junction Temperature (Tj) | 175°C maximum - allows operation in thermally demanding environments with proper layout |
| Package | DO-34 (JEDEC) - standardized through-hole glass body enabling automated insertion and reflow compatibility |
Pinout & Package
RD10ES-T4-AZ is a two-terminal axial lead diode in DO-34 glass package (body length ≤ 2.4 mm, diameter ≤ 2.0 mm), with cathode indicated by black band. No internal pin numbering applies - anode and cathode are defined by physical polarity only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward conduction terminal | Connected to lower-potential node in reverse-biased Zener configuration |
| Cathode (black band end) | Zener breakdown terminal | Connected to higher-potential node; defines clamping reference point |
Key Features
| Feature | Design Value |
|---|---|
| DHD construction | Double heatsink geometry improves thermal resistance by ~25% vs. conventional DO-34 diodes |
| E24-standard VZ | Enables precise selection across 10 V nominal with ±5% tolerance - simplifies BOM rationalization |
| Low IR at sub-VZ | 0.2 µA max at 76% of VZ - minimizes error in high-resistance voltage divider references |
| Short pitch compatibility | 5 mm lead spacing supports dense PCB layouts without requiring custom footprint adjustments |
| Planar process | Ensures consistent parametric distribution and long-term stability under thermal cycling |
Applications
| Industrial Power Supply Regulation | Analog Sensor Biasing |
|---|---|
Use Scenario: Stabilizing reference voltage for linear regulators and op-amp feedback networks in factory automation controllers. IC Role / Device Role / Timing Role: Zener voltage reference providing fixed 10 V rail for ADC reference and LDO feedback. Use Value: Tight 9.19–10.30 V tolerance and 15 Ω ZZ ensure <±10 mV drift across load and temperature in 24 V input systems. |
Use Scenario: Supplying stable excitation voltage to resistive temperature detectors (RTDs) in HVAC monitoring units. IC Role / Device Role / Timing Role: Precision bias source maintaining constant current through 100 Ω RTD elements. Use Value: 0.2 µA reverse leakage prevents measurement offset errors in microamp-level bridge circuits. |
| Overvoltage Protection Clamp | Waveform Clipping Circuit |
Use Scenario: Protecting microcontroller I/O pins from ESD transients in industrial HMI panels. IC Role / Device Role / Timing Role: Fast-acting shunt clamp limiting voltage to ≤10.3 V during 1 kV ESD events. Use Value: 100 W surge rating at 10 µs enables reliable single-pulse absorption without degradation. |
Use Scenario: Limiting audio signal peaks in analog line driver stages of professional audio mixers. IC Role / Device Role / Timing Role: Symmetrical clipping element defining upper/lower amplitude bounds. Use Value: Sharp knee characteristic (ZZK ≤ 150 Ω at 0.5 mA) ensures clean, repeatable waveform truncation. |
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, 1 W, DO-41 package, 17 Ω ZZ, 5 µA IR at 7.6 V | Higher power but larger footprint and higher leakage - suitable where board space permits | Prefer when >400 mW continuous dissipation is needed; not drop-in due to DO-41 vs. DO-34 mechanical mismatch |
| BZX55C10 | 10 V, 500 mW, DO-35 package, 20 Ω ZZ, 5 µA IR at 7.6 V | Higher power rating but different thermal profile and slightly looser tolerance (±5% vs. ±5.5%) | Consider for cost-sensitive designs where DO-35 insertion tooling exists; requires layout review for thermal relief |
Compared with RD10ES-T4-AZ, 1N4740A offers higher power but larger size and higher leakage, while BZX55C10 provides marginally higher dissipation in a different package - RD10ES-T4-AZ remains optimal for space-constrained, low-leakage DO-34-restricted designs requiring tight thermal response.
Availability
RD10ES-T4-AZ is available at Aetrix Electronics and suitable for industrial power supply regulation, analog sensor biasing, overvoltage protection clamp, and waveform clipping circuits requiring stable component supply and long-lifecycle support.
Supply support for RD10ES-T4-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 formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and automotive markets.
RD10ES-T4-AZ belongs to the RD2.0ES–RD39ES series of planar Zener diodes designed specifically for precision voltage reference and transient suppression in Standard-grade industrial electronics.
FAQ
What is the zener voltage tolerance of RD10ES-T4-AZ?
The RD10ES-T4-AZ has a zener voltage range of 9.19 V to 10.30 V at IZ = 7 mA, corresponding to ±5.5% tolerance about the nominal 10 V rating. This tolerance is specified per E24 standard and verified under pulse test conditions (40 ms duration), ensuring repeatability in production calibration.
Does RD10ES-T4-AZ support surge protection applications?
Yes, RD10ES-T4-AZ supports non-repetitive surge suppression with a rated surge reverse power of 100 W at pulse width t = 10 µs. Its DHD construction and low thermal resistance enable reliable energy absorption without junction failure, making it suitable for IEC 61000-4-2 level 3 ESD clamping when properly heat-sunk.
What is the maximum junction temperature rating for RD10ES-T4-AZ?
The RD10ES-T4-AZ is rated for a maximum junction temperature (Tj) of 175°C. This allows operation in high-ambient environments such as enclosed industrial enclosures or near heat-generating components, provided PCB copper area and airflow meet thermal resistance requirements outlined in Figure 7 of the datasheet.
Is RD10ES-T4-AZ RoHS compliant?
RD10ES-T4-AZ meets RoHS Directive 2011/65/EU requirements as confirmed by Renesas Electronics' environmental compliance documentation. The DO-34 glass package contains no lead in solderable terminations, and all materials comply with restricted substance thresholds for cadmium, mercury, hexavalent chromium, PBB, and PBDE.
How does the DHD construction improve thermal performance of RD10ES-T4-AZ?
The DHD (Double Heatsink Diode) construction in RD10ES-T4-AZ uses dual internal thermal paths to reduce junction-to-ambient thermal resistance by approximately 25% versus conventional DO-34 diodes. This enables higher sustained power dissipation at elevated ambient temperatures, as validated in Figure 6 of the datasheet.
RD10ES-T4-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:
- -
RD10ES-T4-AZ FAQ
1.How can I place an order for RD10ES-T4-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD10ES-T4-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 RD10ES-T4-AZ reliable?
The price and inventory of RD10ES-T4-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD10ES-T4-AZ is usually 5 days.
3.What payment methods are accepted for RD10ES-T4-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD10ES-T4-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD10ES-T4-AZ?
RD10ES-T4-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD10ES-T4-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 RD10ES-T4-AZ?
For technical support, including RD10ES-T4-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD10ES-T4-AZ requirements.
6.How does Aetrix verify that RD10ES-T4-AZ is sourced from the original manufacturer or authorized distributors?
All RD10ES-T4-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 RD10ES-T4-AZ meets industry standards.
7.What is the process for return or replacement of RD10ES-T4-AZ?
All RD10ES-T4-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD10ES-T4-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 RD10ES-T4-AZ part is unused and in its original packaging.
Return procedure for RD10ES-T4-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD10ES-T4-AZ Tags
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