My Inquiry
My Account
Microchip Technology 1N4716UR-1/TR
- Part No.:
- 1N4716UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4716UR-1/TR.pdf
- Description:
- DIODE ZENER 39V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,664
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N4716UR-1/TR from Microsemi is a 39.0 V, ±5% tolerance, 500 mW surface-mount Zener diode in DO-213AA (SOD80/MLL34) MELF package, tested at 50 µA Zener current, with 0.39 V voltage regulation and 0.01 µA reverse leakage at 29.6 V, used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N4716UR-1/TR datasheet, 1N4716UR-1/TR pinout, 1N4716UR-1/TR application, or 1N4716UR-1/TR equivalent, key selection criteria include Zener voltage accuracy at low test current, hermetic glass packaging for reliability, thermal resistance of 250 °C/W on FR4, radiation hardness per MicroNote 050, and RoHS-compliant matte-tin plating option.
Technical Context
This Zener diode operates in reverse breakdown to maintain stable voltage across wide temperature (-65 to +175 °C) and current ranges, with minimal capacitance (typical <1.5 pF at 0 V) and non-ESD-sensitive construction per MIL-STD-750 Method 1020. Its metallurgically bonded silicon die ensures high-reliability performance in harsh environments.
The DO-213AA package enables surface-mount assembly with solderable end caps, while the banded cathode marking defines polarity for regulation with the banded end positive. Power derating begins above 50 °C ambient or 125 °C end-cap temperature, per JEDEC-compliant 0.5 W steady-state rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 39.0 V ±5% at IZT = 50 µA - defines nominal regulation point for feedback and reference circuits |
| Power Dissipation (PD) | 0.5 W at TA < 50 °C or TEC < 125 °C - sets maximum continuous power handling on standard FR4 PCB |
| Regulation Voltage (∆VZ) | 0.39 V - difference between VZ measured at 100 µA and 10 µA, indicating knee sharpness and low-current stability |
| Reverse Leakage (IR) | 0.01 µA at VR = 29.6 V - ensures negligible current draw in standby or high-impedance bias networks |
| Thermal Resistance (RθJA) | 250 °C/W - determines junction temperature rise under load on standard 1 oz Cu FR4 board |
| Junction Temperature Range | -65 to +175 °C - supports operation in extended industrial, aerospace, and downhole applications |
| Forward Voltage (VF) | 1.5 V at 100 mA - relevant for forward-bias clamping or ESD protection path design |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package with hermetically sealed construction, tin-lead or RoHS-compliant matte-tin plated end caps, and cathode indicated by axial band. Device is bidirectional in mounting but polarized for Zener operation: banded end is cathode and must be held positive relative to anode during regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Banded End | Cathode | Connected to higher potential node during Zener regulation; defines polarity for voltage reference and clamp functions |
| Non-Banded End | Anode | Connected to lower potential node (e.g., ground or feedback node); completes reverse-bias path for breakdown conduction |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Glass MELF Package | DO-213AA construction provides moisture resistance, long-term parameter stability, and compatibility with high-reliability screening per MIL-PRF-19500 |
| Low Test Current Operation | 50 µA Zener test current enables stable regulation in ultra-low-power bias networks and battery-backed circuits |
| Metallurgical Die Bonding | Direct metal-silicon bond eliminates wire bonds, improving thermal transfer and mechanical robustness under thermal cycling |
| Radiation Hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space-qualified and nuclear instrumentation designs |
| ESD Insensitivity | Non-sensitive to electrostatic discharge per MIL-STD-750 Method 1020 - reduces handling precautions and system-level ESD hardening requirements |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Provides precise 39 V reference in optocoupler-coupled feedback loop of isolated DC-DC converters. IC Role / Device Role / Timing Role: Zener diode acts as voltage reference and error amplifier bias element in secondary-side regulation circuit. Use Value: Tight 5% tolerance and low ∆VZ ensure stable output voltage across line/load/temperature variations without trimming. |
Use Scenario: Supplies stable bias voltage to bridge-based pressure or temperature transducers in factory automation systems. IC Role / Device Role / Timing Role: Functions as shunt reference to establish known excitation level for ratiometric sensor signal conditioning. Use Value: Low 0.01 µA leakage preserves microamp-level sensor bias accuracy and minimizes measurement drift. |
| Overvoltage Clamp Protection | Aerospace Power Monitoring |
Use Scenario: Clamps transient surges on 24 V rail in automotive body control modules to protect downstream logic ICs. IC Role / Device Role / Timing Role: Shunt limiter that conducts above 39 V to divert excess energy to ground during load dump events. Use Value: Hermetic DO-213AA package withstands repeated surge stress without parameter shift or failure. |
Use Scenario: Serves as primary voltage reference in radiation-hardened power telemetry units aboard LEO satellites. IC Role / Device Role / Timing Role: Precision Zener reference for ADC input scaling in spacecraft bus voltage monitoring subsystems. Use Value: Inherent radiation hardness and -65 to +175 °C operation eliminate need for shielding or derating in orbital thermal vacuum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4716A | Same 39 V nominal Zener voltage and DO-35 through-hole package; 5% tolerance; RθJA = 500 °C/W (higher thermal resistance) | Requires through-hole PCB assembly; less suitable for high-density or automated SMT lines | Select when legacy through-hole layout exists and thermal dissipation is managed via heatsinking or lower ambient |
| BZX55C39 | 39 V Zener in DO-35; 5% tolerance; 500 mW rating; higher typical leakage (≤5 µA at 29.6 V vs. 0.01 µA) | Lacks hermetic sealing and radiation hardness; not qualified to MIL-PRF-19500 | Choose for cost-sensitive commercial applications where environmental ruggedness and radiation tolerance are not required |
Compared with 1N4716UR-1/TR, the 1N4716A offers identical electrical specs but requires through-hole assembly and has poorer thermal performance, while BZX55C39 trades reliability and leakage performance for lower cost in benign environments.
Availability
1N4716UR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, overvoltage clamp protection, and aerospace power monitoring requiring stable component supply with traceable sourcing and long-term lifecycle support.
Supply support for 1N4716UR-1/TR 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
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N4716UR-1/TR belongs to Microsemi's legacy DO-213AA Zener series designed for applications demanding hermetic reliability, low-leakage regulation, and operation across extreme temperature and radiation environments.
FAQ
What is the Zener voltage tolerance and test condition for 1N4716UR-1/TR?
The 1N4716UR-1/TR has a nominal Zener voltage of 39.0 V with ±5% tolerance, measured at a Zener test current (IZT) of 50 µA. This low-current test condition enables accurate characterization in low-power bias networks and ensures stable regulation even under minimal drive conditions. The 1N4716UR-1/TR datasheet specifies this value on page 3 of T4-LDS-0240-1 Rev. 2.
Is 1N4716UR-1/TR RoHS compliant?
Yes, the 1N4716UR-1/TR is available in RoHS-compliant version with matte-tin plated end caps, designated by the "e3" suffix in the full part nomenclature (e.g., 1N4716UR-1e3/TR). RoHS compliance applies only to commercial-grade variants; up-screened military versions retain tin-lead plating. The 1N4716UR-1/TR meets lead-free soldering requirements per JEDEC J-STD-020.
What is the maximum reverse leakage current for 1N4716UR-1/TR?
The maximum reverse leakage current (IR) for 1N4716UR-1/TR is 0.01 µA at a reverse voltage (VR) of 29.6 V and 25 °C. This ultra-low leakage supports high-impedance reference and bias applications where current draw must remain below 10 nA. The value is specified in the Electrical Characteristics table on page 3 of the official 1N4716UR-1/TR datasheet.
Can 1N4716UR-1/TR be used in radiation-intensive environments?
Yes, the 1N4716UR-1/TR is inherently radiation-hardened per Microsemi MicroNote 050, making it suitable for space, nuclear, and high-altitude applications. Its metallurgically bonded die and hermetic DO-213AA package contribute to total ionizing dose (TID) resilience without requiring additional shielding. This radiation tolerance is confirmed in the Applications/Benefits section of the 1N4716UR-1/TR technical documentation.
What is the thermal resistance and power derating behavior of 1N4716UR-1/TR?
The 1N4716UR-1/TR has a junction-to-ambient thermal resistance (RθJA) of 250 °C/W when mounted on FR4 with 1 oz copper. Its 0.5 W power rating applies only at TA < 50 °C or TEC < 125 °C; beyond those temperatures, linear derating applies per Figure 1 in the 1N4716UR-1/TR datasheet. This behavior ensures safe operation in thermally constrained industrial enclosures.
1N4716UR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 39 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 nA @ 29.6 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 100 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4716UR-1/TR FAQ
1.How can I place an order for 1N4716UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4716UR-1/TR 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 1N4716UR-1/TR reliable?
The price and inventory of 1N4716UR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4716UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4716UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4716UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4716UR-1/TR?
1N4716UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4716UR-1/TR 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 1N4716UR-1/TR?
For technical support, including 1N4716UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4716UR-1/TR requirements.
6.How does Aetrix verify that 1N4716UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4716UR-1/TR 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 1N4716UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4716UR-1/TR?
All 1N4716UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4716UR-1/TR, 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 1N4716UR-1/TR part is unused and in its original packaging.
Return procedure for 1N4716UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4716UR-1/TR 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…
