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Renesas RD16F(10)-T6-AZ
- Part No.:
- RD16F(10)-T6-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD16F(10)-T6-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
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Inventory:5,000
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Product details
Overview
RD16F(10)-T6-AZ from Renesas Electronics is a 1 W planar-type silicon Zener diode with a nominal zener voltage of 16 V (B3 grade: 15.89–16.71 V), dynamic impedance of 12 Ω at 20 mA, and temperature coefficient of +13 mV/°C. It features DO-41 glass-sealed DHD (Double Heatsink Diode) packaging and is rated for surge reverse power up to 400 W (t = 10 μs), making it suitable for precision voltage regulation and transient suppression in industrial power supplies.
For engineers reviewing the RD16F(10)-T6-Az datasheet, RD16F(10)-T6-AZ pinout, RD16F(10)-T6-AZ application, or RD16F(10)-T6-AZ equivalent, key selection criteria include its ±5% zener voltage tolerance (B3 grade), low dynamic impedance, positive temperature coefficient above 5.6 V, JEDEC DO-41 mechanical compatibility, and suitability for constant-voltage reference and overvoltage clamping in DC-DC converter feedback networks.
Technical Context
This device operates as a two-terminal voltage-reference element relying on controlled reverse-breakdown conduction. Its planar junction construction ensures stable zener characteristics and reproducible breakdown voltage across production lots. The DO-41 package provides axial lead mounting and thermal dissipation via PCB copper area, with junction-to-ambient thermal resistance dependent on heatsinking (e.g., 200°C/W at 5 mm² foil area).
The RD16F(10)-T6-AZ exhibits a positive zener voltage temperature coefficient (+13 mV/°C), confirming operation in the avalanche breakdown region typical for voltages ≥ 6 V. Its 1 W steady-state power rating is derated linearly above 25°C ambient, and it supports transient surge absorption per Figure 7 (400 W, 10 μs non-repetitive pulse).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.89–16.71 V (B3 grade, tested at 20 mA; defines stable regulation range) |
| Power Dissipation (P) | 1.0 W at TA = 25°C; derates to zero at 175°C junction temperature |
| Dynamic Impedance (ZZ) | 12 Ω max at IZ = 20 mA; determines output voltage stability under load variation |
| Reverse Current (IR) | 10 μA max at VR = 12.8 V; specifies leakage before breakdown onset |
| Temperature Coefficient (γZ) | +13 mV/°C typical; indicates voltage increases with temperature-critical for temp-stable references |
| Surge Reverse Power (PRSM) | 400 W (10 μs pulse); enables single-pulse transient suppression without failure |
| Junction Temperature (Tj) | −65 to +175°C; defines operational envelope for reliability in harsh environments |
Pinout & Package
RD16F(10)-T6-AZ uses a standard axial-leaded DO-41 package (JEDEC) with cathode indicated by a black band. Leads are tinned copper-clad steel; body is glass-encapsulated planar silicon. Mounting requires minimum 25 mm lead length between body and PCB for thermal isolation per datasheet Figure 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / low-side connection in reverse-biased configuration | Connected to lower potential node when used as shunt regulator; carries full load current during regulation |
| Cathode | Zener breakdown terminal / high-side connection in reverse-biased configuration | Marked with black band; connected to higher potential node; defines regulated output voltage referenced to anode |
Key Features
| Feature | Design Value |
|---|---|
| Wide zener voltage range (2–82 V) | Enables standardized BOM coverage across multiple supply rails using same footprint and process |
| E24 series nominal values | Supports common resistor ladder design practices and simplifies inventory management |
| DO-41 glass-sealed DHD structure | Provides robust moisture resistance and long-term parameter stability vs. plastic packages |
| Positive temperature coefficient (>5.6 V) | Allows series stacking with negative-coefficient devices for near-zero TC references |
| 1 W continuous + 400 W pulsed rating | Permits use in both steady-state regulation and infrequent surge suppression without external TVS |
Applications
| Voltage Reference for Analog Circuits | Overvoltage Clamp in DC-DC Converters |
|---|---|
Use Scenario: Providing stable bias voltage for op-amp comparators and ADC reference buffers in industrial sensor signal chains. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise 16 V rail independent of input variation. Use Value: Maintains <±1% output accuracy over −40°C to +85°C ambient due to predictable +13 mV/°C drift and low ZZ. |
Use Scenario: Clamping feedback node voltage in isolated flyback converters to prevent controller IC damage during output overvoltage events. IC Role / Device Role / Timing Role: Transient voltage suppressor placed across optocoupler input or TL431 reference divider. Use Value: Absorbs 400 W surges (10 μs) without degradation, eliminating need for discrete TVS diodes in cost-sensitive designs. |
| Waveform Limiting in Signal Conditioning | Surge Protection for Microcontroller I/O |
Use Scenario: Limiting peak amplitude of AC-coupled audio or sensor signals entering MCU ADC inputs. IC Role / Device Role / Timing Role: Bidirectional clipper (anode–cathode back-to-back) defining symmetrical ±16 V swing limits. Use Value: Low 12 Ω ZZ ensures sharp clipping knee and minimal signal distortion below threshold. |
Use Scenario: Protecting 3.3 V or 5 V GPIO pins from ESD and inductive kickback in motor control H-bridge interfaces. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp referenced to local ground, triggered only above 16 V. Use Value: Fast response (<1 ns) and 1 W steady-state rating enable reliable protection without false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4744A (ON Semiconductor) | 14 V nominal, ±5%, 1 W, DO-41, ZZ = 15 Ω @ 25 mA, γZ = +11 mV/°C | Lower voltage; less suitable for 16 V rail regulation but tighter tolerance in some batches | Select when 14 V reference suffices and legacy stock availability is prioritized |
| BZX85C16 (Nexperia) | 16 V nominal, ±5%, 1.3 W, DO-41, ZZ = 40 Ω @ 5 mA, γZ = +12 mV/°C | Higher power rating but significantly higher dynamic impedance reduces regulation precision | Prefer for higher-power clamping where voltage stability is secondary to energy absorption |
Compared with RD16F(10)-T6-AZ, the 1N4744A offers lower voltage and marginally lower temperature coefficient but lacks the 20 mA test condition alignment and exact B3-grade distribution; the BZX85C16 trades regulation accuracy for higher surge capacity and wider production tolerance-making RD16F(10)-T6-AZ optimal for precision 16 V references demanding low ZZ and consistent γZ.
Availability
RD16F(10)-T6-AZ is available at Aetrix Electronics and suitable for industrial power supplies, analog sensor interfaces, and embedded system voltage supervision requiring stable component supply and long-lifecycle support.
Supply support for RD16F(10)-T6-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 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
The RD16F(10)-T6-AZ belongs to Renesas' legacy planar zener diode family designed for general-purpose voltage regulation and transient suppression in standard industrial and consumer equipment.
FAQ
What is the exact zener voltage tolerance for RD16F(10)-T6-AZ?
The RD16F(10)-T6-AZ is specified in the B3 voltage classification, with a guaranteed zener voltage range of 15.89 V to 16.71 V at 20 mA test current. This ±2.6% tolerance (relative to nominal 16 V) is tighter than the broader B-grade (15.26–16.71 V) and reflects tighter binning for precision applications requiring consistent regulation points.
Does RD16F(10)-T6-AZ have a cathode marking, and how is polarity identified?
Yes, RD16F(10)-T6-AZ uses a black band on the glass body to indicate the cathode terminal. This marking aligns with JEDEC DO-41 standards and must be oriented toward the higher-potential node in shunt regulator configurations. The unmarked end is the anode, and correct polarity is essential to achieve intended zener breakdown behavior.
Can RD16F(10)-T6-AZ be used in series for higher voltage references?
Yes, RD16F(10)-T6-AZ can be connected in series to generate higher reference voltages-for example, two units yield ~32 V. However, ensure matched temperature coefficients (+13 mV/°C each) and current balancing resistors, as mismatched units may cause unequal voltage division and thermal runaway under load.
What is the maximum allowable surge duration for RD16F(10)-T6-AZ at 400 W?
The 400 W surge rating for RD16F(10)-T6-AZ applies strictly to non-repetitive pulses of 10 μs duration, as defined in Figure 7 of the datasheet. Longer pulses or repetitive surges exceeding this limit risk thermal runaway and permanent parametric shift-even if average power remains within 1 W-due to insufficient heat dissipation time.
Is RD16F(10)-T6-AZ compliant with RoHS and lead-free assembly requirements?
Yes, RD16F(10)-T6-AZ meets EU RoHS Directive requirements. The device uses lead-free terminations compatible with standard reflow soldering profiles (peak ≤ 260°C), and its glass-encapsulated construction contains no restricted substances above threshold limits per Renesas' environmental compliance documentation.
RD16F(10)-T6-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:
- -
RD16F(10)-T6-AZ FAQ
1.How can I place an order for RD16F(10)-T6-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD16F(10)-T6-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 RD16F(10)-T6-AZ reliable?
The price and inventory of RD16F(10)-T6-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD16F(10)-T6-AZ is usually 5 days.
3.What payment methods are accepted for RD16F(10)-T6-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD16F(10)-T6-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD16F(10)-T6-AZ?
RD16F(10)-T6-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD16F(10)-T6-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 RD16F(10)-T6-AZ?
For technical support, including RD16F(10)-T6-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD16F(10)-T6-AZ requirements.
6.How does Aetrix verify that RD16F(10)-T6-AZ is sourced from the original manufacturer or authorized distributors?
All RD16F(10)-T6-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 RD16F(10)-T6-AZ meets industry standards.
7.What is the process for return or replacement of RD16F(10)-T6-AZ?
All RD16F(10)-T6-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD16F(10)-T6-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 RD16F(10)-T6-AZ part is unused and in its original packaging.
Return procedure for RD16F(10)-T6-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD16F(10)-T6-AZ Tags
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