My Inquiry
My Account
Renesas RD2.2F-T6-AZ
- Part No.:
- RD2.2F-T6-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD2.2F-T6-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:2,089
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RD2.2F-T6-AZ from Renesas Electronics is a 1 W planar-type silicon Zener diode with a nominal zener voltage of 2.2 V (B2 grade: 2.21–2.45 V), dynamic impedance ≤20 Ω at 40 mA, and negative temperature coefficient of −2.0 mV/°C - designed for precision voltage reference and low-voltage clamping in power supply regulation circuits.
For engineers reviewing the RD2.2F-T6-AZ datasheet, RD2.2F-T6-AZ pinout, RD2.2F-T6-AZ application, or RD2.2F-T6-AZ equivalent, this device serves as a stable, low-voltage shunt regulator in DC-DC feedback paths, overvoltage protection networks, and waveform limiting stages where tight tolerance and thermal stability below 3 V are required.
Technical Context
This Zener diode operates in reverse breakdown mode with a specified test current of 40 mA and maintains regulation across ambient temperatures from −65°C to +175°C. Its DO-41 glass-sealed package enables reliable heat dissipation up to 1 W at 25°C, derating linearly above that ambient per Figure 1.
The device exhibits a surge reverse power rating of 400 W for 10 μs pulses and features a cathode-indicated marking (black band) on the axial body. Its E24-series voltage grading ensures compatibility with standard BOM consolidation practices for low-voltage Zener families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.21–2.45 V at IZ = 40 mA - defines precise clamping threshold for sub-3 V rail stabilization |
| Power Dissipation (P) | 1.0 W at TA = 25°C - supports continuous regulation in compact PCB layouts with adequate copper area |
| Dynamic Impedance (ZZ) | ≤20 Ω at IZ = 40 mA - ensures minimal output voltage shift under load transients |
| Temperature Coefficient (γZ) | −2.0 mV/°C - provides predictable, compensatable drift in temperature-sensitive references |
| Reverse Current (IR) | ≤200 μA at VR = 0.7 V - guarantees low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | 175°C maximum - allows operation in industrial environments with localized heating |
| Surge Power (PRSM) | 400 W for t = 10 μs - absorbs transient spikes without degradation in ESD or inductive kick scenarios |
Pinout & Package
RD2.2F-T6-AZ uses a DO-41 axial glass package (JEDEC standard), with cathode identified by a black band. The device has two terminals: anode and cathode - no internal connections or multi-pin configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Reference ground node in shunt regulator | Connected to system ground or lower-potential rail; carries forward current up to 200 mA |
| Cathode | Zener breakdown terminal / Regulated output node | Marked with black band; connected to input rail via series resistor; holds voltage at VZ when reverse-biased |
Key Features
| Feature | Design Value |
|---|---|
| Planar-type DHD structure | Enables consistent breakdown characteristics and long-term stability under thermal cycling |
| E24-series voltage grading | Supports standardized BOM management across 2–82 V Zener family with predictable parametric spacing |
| 1 W power rating in DO-41 | Delivers higher power density than legacy 500 mW Zeners, reducing need for parallel devices |
| Negative γZ at 2.2 V | Compensates for positive TC of other components (e.g., op-amp inputs) in precision analog circuits |
| DO-41 mechanical robustness | Withstands board-level thermal stress and vibration in industrial control and instrumentation |
Applications
| Low-Voltage Power Supply Reference | ESD Protection Clamp |
|---|---|
Use Scenario: Stabilizing feedback node of a 3.3 V LDO or buck converter operating near dropout. IC Role / Device Role: Shunt voltage reference providing fixed 2.2 V threshold to comparator or error amplifier input. Use Value: Maintains regulation accuracy within ±5% over −40°C to +85°C due to known γZ and low ZZ. |
Use Scenario: Protecting microcontroller I/O pins against ±8 kV HBM ESD events. IC Role / Device Role: Low-capacitance clamp diverting surge current to ground before IC damage occurs. Use Value: Activates at 2.45 V (max), limiting pin voltage well below absolute maximum ratings of 5.5 V tolerant GPIOs. |
| Waveform Limiter in Sensor Signal Chain | Overvoltage Detection Threshold |
Use Scenario: Conditioning analog output of a 0–2.5 V pressure sensor feeding an ADC. IC Role / Device Role: Hard clipping element preventing ADC saturation during sensor overrange or noise spikes. Use Value: Sharp knee at 2.2 V ensures clean limiting without signal distortion in 12-bit measurement systems. |
Use Scenario: Monitoring 3.3 V system rail for brownout or overvoltage conditions. IC Role / Device Role: Input to voltage supervisor IC (e.g., TLV809) configured as 2.2 V reset threshold detector. Use Value: Enables accurate, temperature-compensated trip point using external resistor divider scaling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4728A | Zener voltage 3.3 V (±5%), P = 1 W, ZZ = 10 Ω @ 76 mA, DO-41 | Higher VZ shifts use case to 3.3 V rail regulation; not suitable for sub-2.5 V clamping | Select only if circuit requires ≥3.3 V reference and can accommodate higher thermal drift (+2.5 mV/°C) |
| BZX55-C2V4 | Zener voltage 2.4 V (±5%), P = 500 mW, ZZ = 100 Ω @ 5 mA, DO-35 | Lower power rating limits sustained current handling; higher ZZ degrades regulation under load | Acceptable for low-current biasing but not for 40 mA regulation or surge absorption |
Compared with RD2.2F-T6-AZ, the 1N4728A offers tighter ZZ but at incompatible voltage and opposite temperature drift, while BZX55-C2V4 sacrifices power capability and dynamic performance for smaller footprint - making RD2.2F-T6-AZ uniquely suited for 2.2 V, 1 W, thermally stable shunt regulation.
Availability
RD2.2F-T6-AZ is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and embedded controller protection circuits requiring stable component supply and long-lifecycle support.
Supply support for RD2.2F-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 leader formed in 2010 through the merger of NEC Electronics and Renesas Technology, specializing in microcontrollers, analog, and power devices.
RD2.2F-T6-AZ belongs to the RD2.0F–RD82F planar Zener diode family, engineered for standardized voltage reference and protection across industrial, computing, and communications equipment - aligned with Renesas' "Standard" quality grade.
FAQ
What is the exact zener voltage range for RD2.2F-T6-AZ?
The RD2.2F-T6-AZ has a guaranteed zener voltage range of 2.21 V to 2.45 V at 40 mA test current (B2 grade), as specified in the Renesas D13936EJ5V0DS datasheet. This range reflects manufacturing tolerance and ensures consistent clamping behavior in low-voltage regulation circuits where precision below 2.5 V is critical.
Is RD2.2F-T6-AZ RoHS compliant?
Yes, RD2.2F-T6-AZ meets EU RoHS Directive requirements. Renesas confirms environmental compliance for this device in its official documentation and product change notices. No lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances exceed allowable thresholds, supporting use in consumer and industrial electronics sold in regulated markets.
What package type does RD2.2F-T6-AZ use?
RD2.2F-T6-AZ uses the DO-41 axial glass package per JEDEC standards, with overall dimensions of φ3.0 mm max diameter and 25 mm min length. The cathode is marked by a black band, and the device is mechanically rated for standard wave soldering and hand assembly processes without special handling.
Can RD2.2F-T6-AZ replace RD2.0F in existing designs?
RD2.2F-T6-AZ is not a direct replacement for RD2.0F due to differing zener voltage ranges: RD2.0F specifies 1.88–2.25 V (B2), while RD2.2F-T6-AZ is 2.21–2.45 V. Substituting may shift regulation points by up to 250 mV, affecting loop stability or protection thresholds - validation of system-level performance is required before interchange.
What is the maximum surge power rating for RD2.2F-T6-AZ?
RD2.2F-T6-AZ supports a surge reverse power rating of 400 W for pulse widths of 10 μs, as defined in Figure 7 of the D13936EJ5V0DS datasheet. This enables reliable suppression of fast transients such as ESD, relay coil flyback, or switching noise without permanent parameter shift or junction failure.
RD2.2F-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:
- -
RD2.2F-T6-AZ FAQ
1.How can I place an order for RD2.2F-T6-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD2.2F-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 RD2.2F-T6-AZ reliable?
The price and inventory of RD2.2F-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 RD2.2F-T6-AZ is usually 5 days.
3.What payment methods are accepted for RD2.2F-T6-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD2.2F-T6-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD2.2F-T6-AZ?
RD2.2F-T6-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD2.2F-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 RD2.2F-T6-AZ?
For technical support, including RD2.2F-T6-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD2.2F-T6-AZ requirements.
6.How does Aetrix verify that RD2.2F-T6-AZ is sourced from the original manufacturer or authorized distributors?
All RD2.2F-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 RD2.2F-T6-AZ meets industry standards.
7.What is the process for return or replacement of RD2.2F-T6-AZ?
All RD2.2F-T6-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD2.2F-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 RD2.2F-T6-AZ part is unused and in its original packaging.
Return procedure for RD2.2F-T6-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD2.2F-T6-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…
