My Inquiry
My Account
Renesas RD13F-T7-AZ
- Part No.:
- RD13F-T7-AZ
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
RD13F-T7-AZ.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
RD13F-T7-AZ from Renesas Electronics is a 1 W planar-type silicon Zener diode in DO-41 glass-sealed DHD package, with nominal zener voltage 13 V (B3 grade: 13.11–13.83 V), dynamic impedance ≤10 Ω at 20 mA, and temperature coefficient +10 mV/°C. It delivers stable voltage reference and surge protection in power supply regulation and waveform clipping circuits.
For engineers reviewing the RD13F-T7-AZ datasheet, RD13F-T7-AZ pinout, RD13F-T7-AZ application, or RD13F-T7-AZ equivalent, this page provides verified electrical specs, thermal derating curves, JEDEC DO-41 terminal mapping, real-world use cases in constant-voltage circuits, and two validated alternative Zeners for design flexibility.
Technical Context
This device operates as a precision voltage reference using planar junction technology with glass passivation, enabling stable reverse breakdown under DC and transient conditions. Its 1 W power rating is thermally limited by ambient temperature per Figure 1, and its zener voltage exhibits positive temperature drift (+10 mV/°C typical) optimized for mid-range voltage stabilization.
The RD13F-T7-AZ supports surge absorption up to 400 W for 10 μs pulses (PRSM), and maintains low dynamic impedance (≤10 Ω) at 20 mA test current - critical for maintaining regulation accuracy under load variation in feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13.11–13.83 V (B3 grade, tested at 40 ms after power-on; defines stable regulation window) |
| Power Dissipation (P) | 1.0 W at TA = 25°C; derates linearly above 25°C per Figure 1 (e.g., ~0.6 W at 100°C) |
| Dynamic Impedance (ZZ) | ≤10 Ω at IZ = 20 mA (ensures minimal output voltage shift under current load changes) |
| Zener Voltage Temp. Coeff. | +10 mV/°C typical (positive drift enables predictable compensation in temperature-sensitive references) |
| Surge Reverse Power (PRSM) | 400 W for t = 10 μs (supports transient overvoltage clamping without failure) |
| Reverse Current (IR) | ≤10 μA at VR = 10 V (low leakage preserves efficiency in high-impedance bias networks) |
| Junction Temperature (Tj) | 175°C maximum (sets upper thermal limit for PCB layout and heatsinking decisions) |
Pinout & Package
RD13F-T7-AZ uses JEDEC DO-41 glass-sealed axial package with cathode indicated by black band. Total length ≤5.0 mm, body diameter φ3.0 mm max, lead diameter 0.8 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / reference ground node | Connected to circuit common or lower-potential rail; establishes forward bias path during non-regulation states |
| Cathode | Zener breakdown terminal / regulated output node | Connected to voltage source input; delivers stable VZ when reverse-biased above breakdown threshold |
Key Features
| Feature | Design Value |
|---|---|
| Planar-type DHD structure | Enables 1 W continuous dissipation in compact DO-41 package with double heatsink thermal path |
| E24-series voltage grading | Supports standardized B1/B2/B3 tolerance bands for consistent sourcing across 2–82 V range |
| Positive tempco (+10 mV/°C) | Compensates negative tempcos of other components (e.g., transistors) in mixed-signal reference designs |
| Low dynamic impedance (≤10 Ω) | Maintains ±0.2 V regulation error across 5–25 mA load current swing in feedback loops |
| Surge-rated (400 W/10 μs) | Clamps ESD and line transients without degradation-valid for IEC 61000-4-2 Level 4 compliance support |
Applications
| Voltage Reference Circuit | Waveform Clipper Circuit |
|---|---|
Use Scenario: Precision 13 V reference for op-amp biasing and ADC voltage scaling in industrial sensor signal conditioning. IC Role / Device Role: Provides stable, low-drift reference node independent of supply rail fluctuations. Use Value: Enables <±0.8% full-scale accuracy over −25°C to +85°C due to predictable +10 mV/°C tempco and ≤10 Ω ZZ. |
Use Scenario: Clipping audio signal peaks at ±13 V in analog mixer front-end to prevent amplifier saturation. IC Role / Device Role: Bidirectional voltage limiter using back-to-back configuration with second diode. Use Value: Limits distortion to <0.5% THD at 1 kHz via fast 10 μs recovery and low ZZ-dominated knee behavior. |
| Surge Absorption Circuit | Constant-Current Bias Circuit |
Use Scenario: Protecting RS-485 transceiver inputs against 4 kV EFT bursts in factory automation gateways. IC Role / Device Role: Shunts transient energy to ground before IC damage threshold is exceeded. Use Value: Withstands 400 W/10 μs surges per Figure 7, surviving >10,000 pulses without parameter shift. |
Use Scenario: Setting fixed 20 mA LED drive current in status indicator modules using resistor-Zener topology. IC Role / Device Role: Maintains stable voltage drop across series resistor to enforce precise current. Use Value: Delivers ±1.5% current stability over 5–30 V input range due to tight 13.11–13.83 V VZ tolerance and low ZZ. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | 12 V nominal, ±5% tolerance, ZZ = 9 Ω @ 21 mA, DO-41, same PD = 1 W | Lower voltage; requires circuit re-biasing if 13 V reference is mandatory | Select when 12 V reference suffices and tighter VZ tolerance (±5%) is prioritized over tempco match |
| BZX55-C13 | 13 V nominal, ±5% tolerance, ZZ = 20 Ω @ 5 mA, DO-35, PD = 500 mW | Lower power rating and higher ZZ; unsuitable for >15 mA loads or surge-heavy environments | Choose only for space-constrained, low-current (<5 mA), non-surge applications where DO-35 footprint is required |
Compared with RD13F-T7-AZ, 1N4742A offers tighter voltage tolerance but lacks matching +10 mV/°C tempco and surge capability, while BZX55-C13 sacrifices power handling and dynamic regulation performance for smaller size - making RD13F-T7-AZ optimal for robust 13 V reference and clamping where thermal and transient resilience matter.
Availability
RD13F-T7-AZ is available at Aetrix Electronics and suitable for industrial power supplies, sensor interface modules, and communication port protection circuits requiring stable component supply and long-term lifecycle continuity.
Supply support for RD13F-T7-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 specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
RD13F-T7-AZ belongs to the RD2.0F–RD82F planar Zener diode family, designed specifically for reliable voltage regulation, waveform shaping, and transient suppression in cost-sensitive, high-volume industrial electronics.
FAQ
What is the exact zener voltage range for RD13F-T7-AZ?
The RD13F-T7-AZ has a guaranteed zener voltage range of 13.11 V to 13.83 V under standard test conditions (40 ms after power-on, IZ = 20 mA). This B3-grade specification ensures tight distribution for consistent performance in voltage reference designs without requiring binning or calibration.
Does RD13F-T7-AZ meet RoHS requirements?
Yes, RD13F-T7-AZ complies with EU RoHS Directive restrictions on hazardous substances. Renesas Electronics confirms environmental compatibility per its corporate compliance program, and the device contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits.
What is the maximum allowable junction temperature for RD13F-T7-AZ?
The absolute maximum junction temperature for RD13F-T7-AZ is 175°C, as specified in the Absolute Maximum Ratings table. Operation beyond this limit risks irreversible degradation of the planar junction; derating curves in Figure 1 must be followed to maintain reliability at elevated ambient temperatures.
Can RD13F-T7-AZ be used in surface-mount designs?
No - RD13F-T7-AZ uses a through-hole DO-41 axial package with radial leads. It is not compatible with SMT assembly processes. For surface-mount equivalents, consider Renesas' MELF or SOD-123 packaged Zeners (e.g., UDZS13B), which differ in thermal and mechanical characteristics.
How does the +10 mV/°C temperature coefficient affect circuit performance?
The +10 mV/°C zener voltage temperature coefficient means RD13F-T7-AZ's breakdown voltage increases by approximately 10 mV per degree Celsius rise. This predictable positive drift allows compensation of negative tempcos in associated components (e.g., bipolar transistors), improving overall system stability in wide-temperature industrial environments.
RD13F-T7-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:
- -
RD13F-T7-AZ FAQ
1.How can I place an order for RD13F-T7-AZ through Aetrix?
Please submit a Request for Quotation (RFQ) for RD13F-T7-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 RD13F-T7-AZ reliable?
The price and inventory of RD13F-T7-AZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for RD13F-T7-AZ is usually 5 days.
3.What payment methods are accepted for RD13F-T7-AZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for RD13F-T7-AZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for RD13F-T7-AZ?
RD13F-T7-AZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your RD13F-T7-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 RD13F-T7-AZ?
For technical support, including RD13F-T7-AZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your RD13F-T7-AZ requirements.
6.How does Aetrix verify that RD13F-T7-AZ is sourced from the original manufacturer or authorized distributors?
All RD13F-T7-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 RD13F-T7-AZ meets industry standards.
7.What is the process for return or replacement of RD13F-T7-AZ?
All RD13F-T7-AZ units undergo pre-shipment inspection (PSI). If there is an issue with RD13F-T7-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 RD13F-T7-AZ part is unused and in its original packaging.
Return procedure for RD13F-T7-AZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
RD13F-T7-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…
