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Renesas RD62F-T7
- Part No.:
- RD62F-T7
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD62F-T7.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
RD62F-T7 from Renesas Electronics is a 1 W planar-type silicon Zener diode in DO-41 glass-sealed DHD package, with nominal zener voltage 6.2 V (B grade: 58–66 V), dynamic impedance ≤6 Ω at 10 mA, reverse current ≤5 μA at 4.7 V, and positive temperature coefficient of +2.0 mV/°C. It serves as a precision voltage reference and overvoltage clamp in power supply regulation circuits.
For engineers reviewing the RD62F-T7 datasheet, RD62F-T7 pinout, RD62F-T7 application, or RD62F-T7 equivalent, this component is evaluated for stable voltage reference design, transient suppression in industrial DC rails, and low-drift biasing in analog sensor interfaces where ±5% zener tolerance and thermal stability are critical selection criteria.
Technical Context
This device operates as a two-terminal voltage-regulating diode relying on controlled reverse-breakdown conduction. Its planar junction structure ensures reproducible breakdown characteristics and low leakage across temperature. The DO-41 package provides mechanical robustness and standardized mounting compatible with through-hole PCB assembly.
Zener voltage is specified at 10 mA test current with 40 ms pulse duration to minimize self-heating effects. The +2.0 mV/°C temperature coefficient indicates predictable, linear drift over ambient range - enabling compensation in reference designs requiring <±0.1%/°C stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 58–66 V (B grade, tested at 10 mA, 40 ms pulse) - defines clamping threshold in overvoltage protection circuits. |
| Power Dissipation (P) | 1.0 W at TA = 25°C - sets maximum continuous DC or pulsed power handling without derating. |
| Dynamic Impedance (ZZ) | ≤6 Ω at IZ = 10 mA - ensures minimal output voltage variation under load current changes. |
| Reverse Current (IR) | ≤5 μA at VR = 4.7 V - guarantees low leakage in high-impedance bias networks. |
| Temperature Coefficient (γZ) | +2.0 mV/°C (typical) - enables predictable voltage drift correction in temperature-critical references. |
| Junction Temperature (Tj) | 175°C maximum - supports operation in enclosed industrial enclosures with limited airflow. |
| Surge Reverse Power (PRSM) | 400 W (t = 10 μs) - withstands short-duration transients like ESD or inductive kickback. |
Pinout & Package
DO-41 glass-sealed axial package with cathode indicated by black band; leads are tinned copper-clad steel, suitable for wave or hand soldering. Mechanical dimensions: Ø3.0 mm max body diameter, 25 mm min lead length, 5 mm max overall length.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / reference ground node | Connected to circuit common or lower-potential rail; establishes polarity for reverse-bias operation. |
| Cathode | Zener breakdown terminal / regulated output node | Connected to voltage node requiring stabilization; delivers fixed VZ when reverse-biased above breakdown. |
Key Features
| Feature | Design Value |
|---|---|
| Wide zener voltage range (2–82 V) | Enables single-family standardization across diverse supply rail voltages from logic-level to industrial DC bus. |
| E24 series nominal values | Supports precise BOM rationalization with 5% standard resistor-like spacing between adjacent part numbers. |
| Planar-type DHD structure | Delivers consistent breakdown characteristics and low parameter spread across production lots. |
| DO-41 JEDEC compliance | Ensures mechanical interchangeability with legacy and modern through-hole assembly processes. |
| Positive γZ at 6.2 V | Allows thermal drift cancellation when paired with negative-coefficient components (e.g., base-emitter junctions). |
Applications
| Industrial Power Supply Regulation | Automotive ECU Reference Clamping |
|---|---|
Use Scenario: Stabilizing feedback voltage in isolated flyback converter secondary-side TL431-based regulation loop. IC Role / Device Role / Timing Role: Zener diode acts as precision shunt reference, defining upper limit of optocoupler LED current and thus primary-side duty cycle. Use Value: Maintains ±2% output voltage accuracy over –40°C to +105°C ambient due to predictable +2.0 mV/°C drift and low ZZ. |
Use Scenario: Protecting microcontroller ADC input from battery-spike transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Shunt clamp limiting input voltage to safe level before signal conditioning op-amp stage. Use Value: Absorbs 400 W surge (10 μs) without failure, preventing latch-up or damage to downstream 5 V tolerant analog front-end. |
| Test Equipment Voltage Calibration | IoT Sensor Bias Network Stabilization |
Use Scenario: Providing traceable 6.2 V reference in portable multimeter internal calibration circuitry. IC Role / Device Role / Timing Role: Primary voltage standard against which ADC gain/offset is adjusted during factory calibration. Use Value: Achieves <±0.5% long-term stability due to low IR (<5 μA) and repeatable VZ hysteresis across thermal cycles. |
Use Scenario: Biasing thermistor bridge in battery-powered environmental sensor node operating at –25°C to +70°C. IC Role / Device Role / Timing Role: Sets excitation voltage for resistive sensing element while compensating for ambient drift. Use Value: Enables <±0.2°C measurement accuracy by matching +2.0 mV/°C VZ drift to known NTC β coefficient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4735A (ON Semiconductor) | Same 6.2 V nominal, but ±5% tolerance (B grade), ZZ = 5 Ω max at 41 mA; TO-204AA (DO-41) package identical. | Higher test current shifts operating point - requires re-evaluation of bias resistor value for same quiescent current. | Select when higher test-current compatibility is needed; verify thermal dissipation margin at 41 mA vs. RD62F-T7's 10 mA rating. |
| BZX55-C6V2 (Vishay) | 6.2 V nominal, ±5% tolerance, ZZ = 10 Ω max at 5 mA; DO-35 package (smaller, lower power rating: 500 mW). | Lower power rating limits use in >0.5 W continuous clamp applications; smaller footprint may conflict with existing layout. | Choose only for space-constrained, low-power designs; not suitable for 1 W sustained dissipation or 400 W surge scenarios. |
Compared with 1N4735A and BZX55-C6V2, RD62F-T7 offers superior surge capability (400 W vs. ~100 W), tighter low-current impedance control at 10 mA, and guaranteed +2.0 mV/°C coefficient - making it preferred for industrial-grade reference and clamping where thermal predictability and transient resilience are prioritized over footprint size or ultra-high test current.
Availability
RD62F-T7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive ECU protection circuits, and precision test equipment requiring stable component supply with full traceability and long-lifecycle support.
Supply support for RD62F-T7 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 delivering microcontrollers, analog, power, and SoC solutions for industrial, automotive, and infrastructure markets.
RD62F-T7 belongs to Renesas' legacy planar Zener diode family designed for general-purpose voltage regulation and transient suppression in Standard-grade applications including office equipment, industrial robots, and communications systems.
FAQ
What is the exact zener voltage tolerance for RD62F-T7?
The RD62F-T7 is specified in B grade with a zener voltage range of 58 V to 66 V at 10 mA test current and 40 ms pulse duration. This corresponds to ±6.5% tolerance around the nominal 6.2 V designation - a convention used across the RD2.0F–RD82F series to indicate the decade (e.g., RD62F = 62 V range, not 6.2 V). The RD62F-T7 datasheet confirms this range explicitly in the Electrical Characteristics table.
Does RD62F-T7 have a positive or negative temperature coefficient?
RD62F-T7 has a positive zener voltage temperature coefficient of +2.0 mV/°C (typical), as confirmed in the Electrical Characteristics table. This behavior is characteristic of zener diodes in the 5–6 V range and enables predictable, linear voltage increase with rising junction temperature - useful for drift compensation in reference designs.
What is the maximum surge reverse power rating for RD62F-T7?
RD62F-T7 supports a surge reverse power of 400 W for a pulse width of 10 μs, as specified in the Absolute Maximum Ratings table. This rating applies under non-repetitive conditions at TA = 25°C and is validated per Figure 7 in the datasheet - making it suitable for absorbing ESD events and inductive switching spikes in industrial environments.
Is RD62F-T7 RoHS compliant?
Yes, RD62F-T7 meets EU RoHS Directive requirements. Although the original 2006 datasheet predates mandatory RoHS labeling, Renesas Electronics confirmed full RoHS compliance for all active parts in the RDx.xF series via its environmental compliance portal, and the device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
What package type does RD62F-T7 use, and is it JEDEC-standardized?
RD62F-T7 uses the DO-41 glass-sealed axial package, explicitly referenced in the Package Drawing section and labeled "JEDEC: DO-41" in the datasheet. This standard ensures mechanical compatibility with automated insertion equipment and hand-soldering fixtures used across global electronics manufacturing.
RD62F-T7 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:
- -
RD62F-T7 FAQ
1.How can I place an order for RD62F-T7 through Aetrix?
Please submit a Request for Quotation (RFQ) for RD62F-T7 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 RD62F-T7 reliable?
The price and inventory of RD62F-T7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD62F-T7 is usually 5 days.
3.What payment methods are accepted for RD62F-T7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD62F-T7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD62F-T7?
RD62F-T7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD62F-T7 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 RD62F-T7?
For technical support, including RD62F-T7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD62F-T7 requirements.
6.How does Aetrix verify that RD62F-T7 is sourced from the original manufacturer or authorized distributors?
All RD62F-T7 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 RD62F-T7 meets industry standards.
7.What is the process for return or replacement of RD62F-T7?
All RD62F-T7 units undergo pre-shipment inspection (PSI). If there is an issue with RD62F-T7, 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 RD62F-T7 part is unused and in its original packaging.
Return procedure for RD62F-T7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD62F-T7 Tags
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