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Renesas RD6.2ES-T4-AZ
- Part No.:
- RD6.2ES-T4-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD6.2ES-T4-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:40,000
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Product details
Overview
RD6.2ES-T4-AZ from Renesas Electronics is a 6.2 V, 400 mW DO-34 glass-sealed zener diode with DHD (Double Heatsink Diode) construction, ±5% zener voltage tolerance at 5 mA test current, 3.0 Ω dynamic impedance, and 5 µA reverse leakage at 4.85 V, used for precision voltage regulation in low-power analog circuits and surge protection in signal lines.
For engineers reviewing the RD6.2ES-T4-AZ datasheet, RD6.2ES-T4-AZ pinout, RD6.2ES-T4-AZ application, or RD6.2ES-T4-AZ equivalent, this page delivers verified electrical specs, thermal behavior, JEDEC DO-34 package details, and direct alternative options for voltage reference and transient suppression design.
Technical Context
This planar-processed zener diode operates in reverse breakdown with stable voltage regulation across 1–100 mA zener current range. Its DHD construction enables enhanced thermal dissipation through dual heatsinking paths in the DO-34 axial leaded package.
It exhibits a positive temperature coefficient of +3.0 mV/°C near 6.2 V, enabling predictable drift compensation in temperature-sensitive references. The device supports non-repetitive 100 W surge power handling for 10 µs pulses per Fig. 10, making it suitable for transient overvoltage clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±5% at IZ = 5 mA - defines nominal regulation point with tight tolerance for stable reference generation |
| Power Dissipation (P) | 400 mW at TA = 25°C - sets maximum continuous DC power limit before thermal derating begins |
| Dynamic Impedance (ZZ) | 3.0 Ω at IZ = 5 mA - indicates low AC resistance for minimal output voltage variation under load changes |
| Reverse Leakage (IR) | 5 µA max at VR = 4.85 V - ensures negligible standby current in high-impedance bias networks |
| Surge Power (PRSM) | 100 W for t = 10 µs - provides robust transient suppression capability against ESD or inductive spikes |
| Junction Temperature (Tj) | 175°C maximum - allows operation in elevated ambient environments when properly mounted |
| Package | DO-34 (JEDEC) - standard axial glass-body package with 5 mm lead pitch for through-hole PCB assembly |
Pinout & Package
RD6.2ES-T4-AZ uses a two-terminal DO-34 glass-sealed axial package with cathode indicated by a black band. No internal circuitry or active control pins - terminals are purely anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower potential side in reverse-biased zener configuration; carries full zener current during regulation |
| Cathode | Reverse breakdown terminal | Marked with black band; connected to higher potential side; establishes regulated voltage drop across device |
Key Features
| Feature | Design Value |
|---|---|
| DHD construction | Enables dual thermal path from junction to leads, improving power handling vs. conventional DO-34 diodes |
| Planar process | Delivers consistent breakdown characteristics and tighter VZ distribution across production lots |
| E24 standard VZ | Aligns with preferred-value resistor series, simplifying BOM consolidation for multi-voltage designs |
| Short-pitch compatibility | Supports 5 mm PCB lead spacing, reducing board area vs. larger axial packages like DO-41 |
| 175°C max junction temp | Permits use in thermally constrained enclosures without forced cooling or derating penalties |
Applications
| Voltage Reference Circuit | Signal Line Surge Protection |
|---|---|
Use Scenario: Providing stable 6.2 V bias for op-amp input stages or ADC reference dividers in sensor signal conditioning modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to clamp and regulate node voltage. Use Value: Delivers 6.2 V ±5% accuracy with 3.0 Ω dynamic impedance, minimizing error contribution to measurement chains. | Use Scenario: Clamping fast transients on RS-232 or CAN bus data lines exposed to ESD or inductive switching noise. IC Role / Device Role / Timing Role: Passive shunt protector absorbing surge energy before it reaches interface ICs. Use Value: Withstands 100 W non-repetitive surges (10 µs), limiting peak voltage to ≤6.97 V per datasheet VZ(max). |
| Constant Current Source | Waveform Clipping Circuit |
Use Scenario: Building a simple LED driver or bias current source using a series resistor and RD6.2ES-T4-AZ as voltage reference. IC Role / Device Role / Timing Role: Sets fixed voltage drop to establish predictable current through external load. Use Value: Maintains regulation down to 1 mA, enabling stable 0.5–30 mA current ranges with <5% deviation. | Use Scenario: Limiting audio signal peaks in preamplifier outputs to prevent distortion or downstream clipping. IC Role / Device Role / Timing Role: Bidirectional clipper (with second diode) or unidirectional limiter in analog signal path. Use Value: Sharp 6.2 V knee and low ZZ ensure clean, repeatable clipping threshold with minimal harmonic generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A | 6.2 V ±5%, 1.0 W rating, DO-41 package, 5.0 Ω ZZ at 20 mA | Higher power but larger footprint; less suitable for space-constrained DO-34 layouts | Select when >400 mW continuous dissipation is required and board area permits DO-41 mounting |
| BZX55C6V2 | 6.2 V ±5%, 500 mW rating, DO-35 package, 10 Ω ZZ at 5 mA | Same voltage grade but higher dynamic impedance and different thermal profile due to smaller DO-35 body | Prefer for cost-sensitive consumer designs where 10 Ω ZZ is acceptable and DO-35 is already standardized |
Compared with RD6.2ES-T4-AZ, 1N4735A offers triple the power rating but requires more PCB area and has higher dynamic impedance at typical operating currents; BZX55C6V2 matches voltage tolerance but trades off regulation precision and thermal robustness for lower cost and smaller size.
Availability
RD6.2ES-T4-AZ is available at Aetrix Electronics and suitable for voltage reference, surge suppression, constant current, and waveform clipping applications requiring stable component supply and long-term obsolescence management.
Supply support for RD6.2ES-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 Japanese semiconductor manufacturer formed in 2010 via merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
RD6.2ES-T4-AZ belongs to the legacy RDx.xES zener diode family designed for general-purpose voltage regulation and protection in standard-grade industrial and consumer electronics.
FAQ
What is the zener voltage tolerance and test condition for RD6.2ES-T4-AZ?
The RD6.2ES-T4-AZ has a zener voltage of 6.2 V with ±5% tolerance, measured at a test current of 5 mA. This specification is confirmed in the Electrical Characteristics table of Renesas document D13935EJ7V0DS, where the AB2 suffix variant (corresponding to RD6.2ES-T4-AZ) shows a min/max range of 5.99 V to 6.24 V under those conditions. RD6.2ES-T4-AZ maintains this tolerance across its qualified operating temperature range.
Does RD6.2ES-T4-AZ have a specified temperature coefficient, and how does it affect performance?
Yes, RD6.2ES-T4-AZ exhibits a zener voltage temperature coefficient of +3.0 mV/°C near its 6.2 V operating point, as shown in Fig. 9 of the datasheet. This positive drift means the regulated voltage increases linearly with junction temperature, enabling predictable compensation in reference circuits. RD6.2ES-T4-AZ's coefficient is optimized for stability in mid-voltage zeners and remains consistent across production lots due to its planar process.
Can RD6.2ES-T4-AZ be used in surface-mount designs?
No, RD6.2ES-T4-AZ is exclusively offered in the through-hole DO-34 axial glass package and is not available in SMD variants. Its mechanical construction-glass body with radial leads-requires hole mounting and wave or hand soldering. For SMT equivalents, consider the BZX84-C6V2 (SOT-23) or MMBZ5234B (SOT-23), though these differ in power rating, impedance, and thermal behavior from RD6.2ES-T4-AZ.
What is the maximum surge power rating of RD6.2ES-T4-AZ, and under what conditions is it valid?
RD6.2ES-T4-AZ supports a non-repetitive surge reverse power of 100 W for pulse widths of 10 µs, as defined in Absolute Maximum Ratings and illustrated in Fig. 10 of the datasheet. This rating assumes single-event application with adequate recovery time between pulses and is not intended for repetitive surge conditions. RD6.2ES-T4-AZ must be operated within its 400 mW steady-state limit during normal regulation.
Is RD6.2ES-T4-AZ compliant with RoHS and lead-free soldering requirements?
RD6.2ES-T4-AZ was originally released prior to RoHS enforcement (document dated April 2003), and the datasheet does not specify lead-free construction. Renesas' later product lines (e.g., the RA series) explicitly declare RoHS compliance, but for RD6.2ES-T4-AZ, leaded glass and solder-compatible terminations are implied by its DO-34 JEDEC standard and era of manufacture. Customers requiring RoHS compliance should verify current lot status with Renesas or select modern alternatives such as the BZX55C6V2 (RoHS-compliant DO-35).
RD6.2ES-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:
- -
RD6.2ES-T4-AZ FAQ
1.How can I place an order for RD6.2ES-T4-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD6.2ES-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 RD6.2ES-T4-AZ reliable?
The price and inventory of RD6.2ES-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 RD6.2ES-T4-AZ is usually 5 days.
3.What payment methods are accepted for RD6.2ES-T4-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD6.2ES-T4-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD6.2ES-T4-AZ?
RD6.2ES-T4-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD6.2ES-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 RD6.2ES-T4-AZ?
For technical support, including RD6.2ES-T4-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD6.2ES-T4-AZ requirements.
6.How does Aetrix verify that RD6.2ES-T4-AZ is sourced from the original manufacturer or authorized distributors?
All RD6.2ES-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 RD6.2ES-T4-AZ meets industry standards.
7.What is the process for return or replacement of RD6.2ES-T4-AZ?
All RD6.2ES-T4-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD6.2ES-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 RD6.2ES-T4-AZ part is unused and in its original packaging.
Return procedure for RD6.2ES-T4-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD6.2ES-T4-AZ Tags
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