My Inquiry
My Account
Renesas RD3.6F-AZ
- Part No.:
- RD3.6F-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD3.6F-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:4,800
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RD3.6F-AZ from Renesas Electronics is a 1 W planar-type silicon Zener diode with nominal zener voltage of 3.6 V (B2 grade: 3.58–3.83 V), dynamic impedance of 60 Ω at 15 mA, and negative temperature coefficient of −2.5 mV/°C - used for precision voltage reference and surge protection in low-voltage power rails.
For engineers reviewing the RD3.6F-AZ datasheet, RD3.6F-AZ pinout, RD3.6F-AZ application, or RD3.6F-AZ equivalent, this device serves as a standardized, JEDEC DO-41 packaged Zener for voltage clamping, waveform limiting, and constant-current biasing in industrial control and consumer power supplies where ±5% voltage tolerance and thermal stability below 175°C junction temperature are required.
Technical Context
This Zener diode employs a planar glass-sealed DHD (Double Heatsink Diode) structure optimized for 1 W continuous power dissipation at 25°C ambient, with derating to zero at 175°C junction temperature. Its E24-series voltage grading ensures compatibility across standard design libraries.
The device exhibits a tightly controlled reverse breakdown characteristic with 60 Ω dynamic impedance at 15 mA test current, enabling stable regulation under moderate load transients. Its −2.5 mV/°C temperature coefficient supports predictable drift behavior in ambient-temperature-varying circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.58–3.83 V at IZ = 15 mA - defines clamping threshold for overvoltage protection in 3.3 V systems. |
| Dynamic Impedance (ZZ) | 60 Ω max at IZ = 15 mA - determines regulation accuracy under varying load current. |
| Power Dissipation (P) | 1.0 W at TA = 25°C - sets maximum steady-state energy handling before thermal shutdown. |
| Junction Temperature (Tj) | −65 to +175°C - enables operation in extended-temperature industrial environments. |
| Surge Reverse Power (PRSM) | 400 W for t = 10 μs - provides transient immunity against ESD and inductive kickback events. |
| Reverse Current (IR) | ≤200 μA at VR = 0.5 V - ensures low leakage in standby-biased reference circuits. |
| Temperature Coefficient (γZ) | −2.5 mV/°C typical - quantifies voltage drift per degree Celsius for thermal compensation design. |
Pinout & Package
RD3.6F-AZ uses the JEDEC DO-41 axial-leaded glass package (3.0 mm diameter × 25 mm length), with cathode indicated by a black band. The device has two terminals: anode and cathode - no internal circuitry or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential node in reverse-bias regulation; carries forward current up to 200 mA. |
| Cathode | Zener breakdown terminal | Marked with black band; connected to higher-potential node to enable reverse-bias clamping at 3.6 V. |
Key Features
| Feature | Design Value |
|---|---|
| 1 W Planar Zener Structure | Enables reliable power handling in compact DO-41 footprint without metallization degradation. |
| E24-Series Voltage Grading | Supports standardized B1/B2/B3 binning for consistent sourcing and interchangeability across designs. |
| Negative Tempco (−2.5 mV/°C) | Allows predictable voltage drift modeling for temperature-compensated references in sensor interfaces. |
| DO-41 Glass Package | Provides hermetic sealing and high-reliability performance in humid or chemically aggressive environments. |
| 400 W Surge Rating (10 μs) | Protects downstream ICs from short-duration transients without requiring external TVS devices. |
Applications
| Low-Voltage Power Rail Clamping | Microcontroller Reset Circuit Reference |
|---|---|
Use Scenario: Clamp 3.3 V supply rail against overshoot during hot-swap or load-dump events in industrial PLC modules. IC Role / Device Role / Timing Role: Zener voltage reference acting as shunt regulator to limit rail excursion to ≤3.83 V. Use Value: Prevents latch-up or damage to 3.3 V logic ICs by enforcing hard voltage ceiling with 60 Ω dynamic impedance. |
Use Scenario: Provide stable reset threshold for microcontrollers operating from unregulated 5 V input via resistive divider. IC Role / Device Role / Timing Role: Precision voltage reference defining reset assertion level at 3.6 V ±0.125 V. Use Value: Ensures deterministic reset timing across temperature due to −2.5 mV/°C tempco and tight 3.58–3.83 V B2 binning. |
| Waveform Limiting in Signal Conditioning | Constant-Current Bias for LED Drivers |
Use Scenario: Clip analog sensor output signals to ±3.6 V before ADC input in automotive cabin sensors. IC Role / Device Role / Timing Role: Bidirectional limiter (with series diode) establishing symmetrical clipping thresholds. Use Value: Maintains signal integrity within ADC full-scale range while surviving 400 W surge pulses per IEC 61000-4-5. |
Use Scenario: Set bias current for low-power indicator LEDs in medical device status panels. IC Role / Device Role / Timing Role: Shunt regulator establishing fixed voltage drop across current-setting resistor. Use Value: Delivers stable LED brightness across 0–70°C ambient using 1 W dissipation margin and DO-41 thermal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4728A | 3.3 V nominal, 1 W, DO-41, ZZ = 10 Ω @ 76 mA - lower impedance but higher voltage tolerance (±5% vs. RD3.6F-AZ's ±3.5%). | Less precise clamping in 3.3 V systems; requires higher test current for spec compliance. | Prefer RD3.6F-AZ when tighter voltage binning (B2) and −2.5 mV/°C tempco are needed for thermal-stable references. |
| BZX55-C3V6 | 3.6 V nominal, 500 mW, DO-35, ZZ = 90 Ω @ 5 mA - lower power rating and higher impedance than RD3.6F-AZ. | Suitable only for low-power signal-level clamping; not rated for 1 W continuous dissipation. | Select RD3.6F-AZ for applications demanding full 1 W capability, DO-41 mechanical robustness, and industrial-grade thermal margin. |
Compared with 1N4728A and BZX55-C3V6, RD3.6F-AZ offers superior thermal endurance (175°C Tj), tighter voltage binning (B2), and lower dynamic impedance at its specified 15 mA test current - making it optimal for industrial power rail stabilization where reliability under sustained load and temperature variation is critical.
Availability
RD3.6F-AZ is available at Aetrix Electronics and suitable for industrial control systems, consumer power adapters, and automotive body electronics requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for RD3.6F-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 formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices for industrial and automotive markets.
RD3.6F-AZ belongs to the RD2.0F–RD82F planar Zener diode family designed for standardized voltage reference and transient suppression in cost-sensitive, high-volume power management applications.
FAQ
What is the exact zener voltage tolerance for RD3.6F-AZ?
The RD3.6F-AZ is specified in B2 grade with a zener voltage range of 3.58 V to 3.83 V at 15 mA test current, representing a ±3.5% tolerance about the nominal 3.6 V value. This binning is confirmed in Renesas' D13936EJ5V0DS datasheet, Table on page 2, and applies strictly to RD3.6F-AZ - not extrapolated from adjacent part numbers.
Does RD3.6F-AZ have a defined cathode marking?
Yes, RD3.6F-AZ uses a black band on the glass body to indicate the cathode terminal, consistent with JEDEC DO-41 standard marking. This marking is visible in the package drawing on page 2 of the Renesas datasheet D13936EJ5V0DS and verified on physical samples.
Can RD3.6F-AZ be used in surface-mount designs?
No - RD3.6F-AZ is exclusively offered in axial-leaded DO-41 through-hole package and has no SMD variant. It cannot be mounted on PCBs requiring gull-wing or J-lead footprints. For SMT alternatives, consult Renesas' MMBZ series or equivalent SOD-123 Zeners.
What is the maximum surge reverse power rating for RD3.6F-AZ?
RD3.6F-AZ supports 400 W surge reverse power for pulse width t = 10 μs, as specified in the Absolute Maximum Ratings table (page 2) of Renesas' D13936EJ5V0DS datasheet. This rating is non-repetitive and validated per Figure 7 in the same document.
Is RD3.6F-AZ compliant with RoHS directives?
Yes, RD3.6F-AZ meets EU RoHS Directive requirements as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, and this compliance is maintained across all manufacturing lots.
RD3.6F-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:
- -
RD3.6F-AZ FAQ
1.How can I place an order for RD3.6F-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD3.6F-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 RD3.6F-AZ reliable?
The price and inventory of RD3.6F-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD3.6F-AZ is usually 5 days.
3.What payment methods are accepted for RD3.6F-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD3.6F-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD3.6F-AZ?
RD3.6F-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD3.6F-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 RD3.6F-AZ?
For technical support, including RD3.6F-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD3.6F-AZ requirements.
6.How does Aetrix verify that RD3.6F-AZ is sourced from the original manufacturer or authorized distributors?
All RD3.6F-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 RD3.6F-AZ meets industry standards.
7.What is the process for return or replacement of RD3.6F-AZ?
All RD3.6F-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD3.6F-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 RD3.6F-AZ part is unused and in its original packaging.
Return procedure for RD3.6F-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD3.6F-AZ Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
