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Renesas RD6.2FM(D)-T1-AZ
- Part No.:
- RD6.2FM(D)-T1-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
RD6.2FM(D)-T1-AZ.pdf
- Description:
- DIODE ZENER 2-POWER MINI MOLD
- Quantity:
- Payment:
- Shipping:
Inventory:9,490
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Product details
Overview
RD6.2FM(D)-T1-AZ from Renesas Electronics is a 1 W planar-type Zener diode in a 2-pin power mini mold package, with a nominal Zener voltage of 6.2 V (5.8–6.6 V), dynamic impedance of 40 Ω at 5 mA, and maximum reverse current of 20 μA at 3.0 V. It serves as a precision voltage reference and surge clamp in low-power analog and protection circuits.
For engineers reviewing the RD6.2FM(D)-T1-AZ datasheet, RD6.2FM(D)-T1-AZ pinout, RD6.2FM(D)-T1-AZ application, or RD6.2FM(D)-T1-AZ equivalent, this part is selected for stable 6.2 V regulation in space-constrained industrial and consumer power supplies, waveform clippers, and transient suppression networks where thermal performance and mounting density are critical.
Technical Context
This Zener diode operates in reverse-biased breakdown mode with tightly controlled voltage tolerance (±6.5% at 5 mA) and low dynamic impedance to maintain regulation under varying load currents. Its planar junction structure ensures consistent avalanche characteristics and long-term stability over temperature.
Designed for surface-mount use on ceramic or glass-epoxy PCBs, RD6.2FM(D)-T1-AZ delivers 1 W continuous power dissipation at 25°C ambient, derating linearly above TA = 25°C per Figure 1, and withstands 400 W surge reverse power for 10 μs pulses-enabling robust ESD and transient immunity without external snubbers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.8–6.6 V at IZ = 5 mA - defines usable regulation window for 6.2 V reference designs |
| Dynamic Impedance (ZZ) | 40 Ω max at IZ = 5 mA - ensures <1% output deviation for ±2 mA load changes |
| Reverse Current (IR) | 20 μA max at VR = 3.0 V - guarantees low leakage in standby and battery-backed circuits |
| Power Dissipation (P) | 1.0 W at TA = 25°C - supports continuous operation in compact SMT layouts with minimal heatsinking |
| Junction Temperature (Tj) | 150°C max - enables reliable operation in enclosed industrial enclosures up to 100°C ambient |
| Surge Reverse Power (PRSM) | 400 W at t = 10 μs - absorbs common-mode transients per IEC 61000-4-5 Level 3 without failure |
Pinout & Package
RD6.2FM(D)-T1-AZ uses a 2-pin power mini mold package (4.7 × 2.5 × 1.55 mm) with cathode indicated by a band. Mounting area is reduced ~35% vs. legacy 3-pin RD**P variants, enabling high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection | Connected to ground or lower-potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal / regulated output node | Provides stable 6.2 V reference when reverse-biased; must be tied to input via current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Planar junction construction | Ensures repeatable Zener voltage distribution and low parameter drift over 10-year field life |
| Two-pin SMT package | Eliminates third pin constraint, simplifying layout and reducing board area by ~35% vs. RD**P series |
| Flat-surface mounting | Enables automated optical inspection (AOI) and eliminates tombstoning risk during reflow |
| 150°C junction rating | Supports operation in sealed enclosures with limited airflow, such as industrial PLC modules |
Applications
| Industrial Power Supply Reference | USB Port Overvoltage Clamp |
|---|---|
Use Scenario: Precision 6.2 V reference in isolated flyback auxiliary winding feedback network. IC Role / Device Role / Timing Role: Shunt voltage reference providing error signal to optocoupler-driven PWM controller. Use Value: Maintains ±1.5% output regulation across line/load/temperature with 40 Ω ZZ limiting feedback loop gain variation. |
Use Scenario: Clamping transient spikes on USB VBUS line during hot-plug events. IC Role / Device Role / Timing Role: Passive overvoltage protector absorbing >400 W surges for 10 μs without degradation. Use Value: Prevents damage to downstream USB PHY ICs while adding <0.5 mm² footprint and zero active components. |
| Audio Signal Limiter | Microcontroller Reset Circuit |
Use Scenario: Symmetrical clipping of line-level audio signals to prevent amplifier saturation. IC Role / Device Role / Timing Role: Bidirectional limiter using two back-to-back RD6.2FM(D)-T1-AZ diodes. Use Value: Delivers clean 6.2 V peak clipping threshold with matched forward/reverse knee voltages for low THD. |
Use Scenario: Brown-out detection and reset hold in battery-powered MCU systems. IC Role / Device Role / Timing Role: Zener-based voltage monitor triggering external reset IC when supply drops below 6.2 V. Use Value: Enables deterministic reset assertion at 6.2 V with <20 μA leakage preserving battery life in sleep mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C6V2 (Nexperia) | 350 mW SOT-23 package; ZZ = 60 Ω at 5 mA; tighter VZ tolerance (±5%) | Limited to low-power portable devices due to lower PD; unsuitable for 1 W surge absorption | Select when board space is <1.5 mm² and surge immunity is not required |
| 1N4735A (ON Semiconductor) | 1 W DO-41 through-hole; ZZ = 5 Ω at 43 mA; higher test current shifts operating point | Requires wave soldering or hand assembly; incompatible with fully SMT production lines | Select only for legacy repair or prototyping where manual assembly is acceptable |
Compared with BZX84-C6V2 and 1N4735A, RD6.2FM(D)-T1-AZ uniquely balances 1 W SMT power handling, 40 Ω low-impedance regulation at standard 5 mA test current, and industry-standard 2-pin mini-mold footprint-making it optimal for high-volume industrial SMT designs requiring both precision and ruggedness.
Availability
RD6.2FM(D)-T1-AZ is available at Aetrix Electronics and suitable for industrial power supplies, USB interface protection circuits, and microcontroller reset networks requiring stable component supply and long-term obsolescence management.
Supply support for RD6.2FM(D)-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 delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
RD6.2FM(D)-T1-AZ belongs to Renesas' legacy Zener diode family designed for high-reliability voltage reference and transient suppression in Standard-grade industrial equipment-emphasizing manufacturability, thermal robustness, and long-lifecycle support.
FAQ
What is the Zener voltage tolerance of RD6.2FM(D)-T1-AZ at 5 mA?
The RD6.2FM(D)-T1-AZ has a Zener voltage range of 5.8 V to 6.6 V at IZ = 5 mA, corresponding to ±6.5% tolerance about the nominal 6.2 V value. This tolerance is guaranteed per the B-class specification in the D16083EJ2V0DS datasheet and applies across the full operating temperature range of −55°C to +150°C.
Can RD6.2FM(D)-T1-AZ be used in place of RD6.2FM without design changes?
Yes, RD6.2FM(D)-T1-AZ is a direct replacement for RD6.2FM with identical electrical specifications, package dimensions, and pinout. The "(D)" suffix denotes tape-and-reel packaging per JIS C 0605, and "-T1-AZ" indicates RoHS-compliant plating and standard Renesas marking-no PCB or schematic modifications are needed.
What is the maximum allowable surge pulse width for 400 W on RD6.2FM(D)-T1-AZ?
The RD6.2FM(D)-T1-AZ supports a 400 W surge reverse power rating for pulses up to 10 μs, as defined in the Absolute Maximum Ratings table. Pulse widths beyond 10 μs require derating per Figure 6 in the datasheet, where PRSM drops to ~200 W at 100 μs and ~40 W at 10 ms.
Does RD6.2FM(D)-T1-AZ meet RoHS requirements?
Yes, RD6.2FM(D)-T1-AZ complies with EU RoHS Directive 2011/65/EU. The "-AZ" suffix explicitly denotes lead-free, halogen-free terminations and conformal markings per Renesas' environmental compliance program, verified through material declarations and XRF testing.
How does the thermal impedance of RD6.2FM(D)-T1-AZ affect its power derating?
RD6.2FM(D)-T1-AZ exhibits a transient thermal impedance of 312°C/W (per Figure 5), meaning a 1 W pulse causes ~312°C junction rise over ambient for short durations. For continuous operation, derating follows the curve in Figure 1: power drops to 0.5 W at 100°C ambient and reaches zero at 150°C, requiring thermal pad design or airflow in high-TA environments.
RD6.2FM(D)-T1-AZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-Power Mini Mold
RD6.2FM(D)-T1-AZ FAQ
1.How can I place an order for RD6.2FM(D)-T1-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD6.2FM(D)-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 RD6.2FM(D)-T1-AZ reliable?
The price and inventory of RD6.2FM(D)-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 RD6.2FM(D)-T1-AZ is usually 5 days.
3.What payment methods are accepted for RD6.2FM(D)-T1-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD6.2FM(D)-T1-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD6.2FM(D)-T1-AZ?
RD6.2FM(D)-T1-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD6.2FM(D)-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 RD6.2FM(D)-T1-AZ?
For technical support, including RD6.2FM(D)-T1-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD6.2FM(D)-T1-AZ requirements.
6.How does Aetrix verify that RD6.2FM(D)-T1-AZ is sourced from the original manufacturer or authorized distributors?
All RD6.2FM(D)-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 RD6.2FM(D)-T1-AZ meets industry standards.
7.What is the process for return or replacement of RD6.2FM(D)-T1-AZ?
All RD6.2FM(D)-T1-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD6.2FM(D)-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 RD6.2FM(D)-T1-AZ part is unused and in its original packaging.
Return procedure for RD6.2FM(D)-T1-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD6.2FM(D)-T1-AZ Tags
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