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Microchip Technology 1N4710UR-1/TR
- Part No.:
- 1N4710UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4710UR-1/TR.pdf
- Description:
- DIODE ZENER 25V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,599
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Product details
Overview
1N4710UR-1/TR from Microsemi is a 25 V, ±5% tolerance, 500 mW surface-mount Zener diode in DO-213AA (SOD-80/MLL34) MELF package, tested at 50 µA, with 0.25 V voltage regulation and 19.0 mA maximum Zener current. It delivers stable voltage reference in low-power analog circuits, power supply feedback loops, and overvoltage protection.
For engineers reviewing the 1N4710UR-1/TR datasheet, 1N4710UR-1/TR pinout, 1N4710UR-1/TR application, or 1N4710UR-1/TR equivalent, key selection criteria include Zener voltage accuracy at low test current, thermal resistance (100 °C/W junction-to-end cap), hermetic glass packaging, RoHS-compliant plating options, and MIL-PRF-19500 up-screening availability.
Technical Context
This device operates as a precision shunt voltage regulator, leveraging metallurgically bonded silicon die within a hermetically sealed glass MELF body to ensure long-term stability and radiation hardness. Its 50 µA Zener test current enables low-power biasing while maintaining tight regulation (ΔVZ = 0.25 V between 10 µA and 100 µA).
The DO-213AA package provides superior thermal performance over plastic SMD packages, with RθJL = 100 °C/W when mounted on FR4, enabling reliable operation from –65 °C to +175 °C junction temperature. Reverse leakage is limited to ≤10 nA at 19.0 V, supporting high-impedance sensing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.0 V ±5% at IZT = 50 µA - defines nominal regulation point for feedback and reference circuits |
| Power Dissipation (PD) | 0.5 W - supports continuous operation up to 19.0 mA at 25 V without derating below 50 °C ambient |
| Voltage Regulation (ΔVZ) | 0.25 V - variation between 10 µA and 100 µA test currents, critical for low-current stability |
| Max Zener Current (IZM) | 19.0 mA - maximum safe DC current before exceeding 0.5 W rating at 25 V |
| Reverse Leakage (IR) | ≤10 nA @ 19.0 V - ensures minimal error in high-impedance voltage divider or sensing nodes |
| Junction Temp Range | –65 °C to +175 °C - enables use in automotive under-hood, industrial control, and aerospace environments |
| Thermal Resistance (RθJL) | 100 °C/W - allows predictable junction temperature rise with end-cap heatsinking on PCB |
Pinout & Package
DO-213AA (SOD-80 / MLL34) MELF glass package: cylindrical hermetic body with metallized end caps; cathode indicated by single black band; polarity requires banded end to be positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Zener cathode reference | Unmarked end; connects to circuit ground or lower potential node in shunt regulator configuration |
| Cathode | Zener breakdown terminal | Banded end; connects to regulated voltage node; must be held at higher potential than anode for regulation |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Eliminates moisture ingress and long-term parameter drift-critical for mission-critical analog references |
| Metallurgical die bonding | Enhances thermal transfer and mechanical reliability versus epoxy-bonded alternatives |
| Low 50 µA test current | Enables regulation in ultra-low-power circuits such as battery-backed sensors and standby supplies |
| MIL-PRF-19500 up-screening option | Supports high-reliability programs requiring screening to military standards (JAN/JANTXV levels) |
| RoHS-compliant matte-tin plating | Ensures solderability and compatibility with lead-free reflow processes (commercial grade only) |
Applications
| Power Supply Feedback | Overvoltage Protection |
|---|---|
Use Scenario: Used in the optocoupler feedback path of isolated DC-DC converters to regulate output voltage. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 25 V threshold for TL431-like feedback networks. Use Value: Maintains ±5% output regulation across temperature and line variations due to low ΔVZ and stable VZ at 50 µA. | Use Scenario: Clamps transient surges on 24 V industrial I/O lines to protect downstream logic inputs. IC Role / Device Role / Timing Role: Passive crowbar element conducting above 25 V to divert fault current away from sensitive ICs. Use Value: Low leakage (<10 nA) prevents false triggering; hermetic package withstands repeated surge events without degradation. |
| Reference Voltage Source | Temperature-Stable Biasing |
Use Scenario: Provides fixed 25 V reference for ADC input scaling in data acquisition modules. IC Role / Device Role / Timing Role: Precision shunt reference establishing known full-scale voltage for analog front-end conditioning. Use Value: Stable VZ over –65 °C to +175 °C ensures consistent measurement accuracy without calibration drift. | Use Scenario: Biases op-amp input stages in wide-temperature-range sensor signal conditioners. IC Role / Device Role / Timing Role: Low-current Zener source (50 µA) setting stable DC operating point independent of supply ripple. Use Value: Minimal capacitance (typ. <2 pF) avoids phase shift in high-frequency amplifier bias networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4710A-TR | Same 25 V, ±5%, DO-213AA package but manufactured by ON Semiconductor; slightly higher ΔVZ (0.27 V) | Compatible in general-purpose regulation; not qualified to MIL-PRF-19500 | Select for cost-sensitive commercial designs where up-screening is unnecessary |
| BZX55C24-TAP | 24 V nominal, ±5%, DO-35 through-hole package; 500 mW rating; higher RθJA (350 °C/W) | Requires PCB layout change; suitable only where through-hole assembly remains viable | Choose only if legacy DO-35 footprint must be retained and 1 V lower VZ is acceptable |
Compared with 1N4710A-TR and BZX55C24-TAP, the 1N4710UR-1/TR offers superior thermal performance (RθJL = 100 °C/W), hermetic reliability, and MIL-PRF-19500 up-screening capability-making it preferred for high-stability, high-reliability, and extended-temperature applications where surface-mount MELF form factor is required.
Availability
1N4710UR-1/TR is available at Aetrix Electronics and suitable for industrial control systems, aerospace power management, and medical instrumentation requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N4710UR-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 defense, aerospace, and industrial markets.
The 1N4678UR-1 through 1N4717UR-1 series was designed to deliver MIL-grade Zener regulation in compact, hermetic surface-mount packages-addressing demand for robust, low-drift voltage references in harsh-environment electronics.
FAQ
What is the Zener voltage tolerance of the 1N4710UR-1/TR?
The 1N4710UR-1/TR has a nominal Zener voltage of 25.0 V with a standard tolerance of ±5%, as specified in the Electrical Characteristics table on page 3 of T4-LDS-0240-1 Rev. 2. Tighter 2% and 1% tolerances are available under different part number suffixes (e.g., "C" or "D"), but the base 1N4710UR-1/TR is ±5%. This tolerance applies at 25 °C with IZT = 50 µA.
Is the 1N4710UR-1/TR RoHS compliant?
Yes, the 1N4710UR-1/TR is available in RoHS-compliant versions with matte-tin plating on the end caps, designated by the "e3" suffix in the full part nomenclature (e.g., 1N4710UR-1/TR e3). RoHS compliance applies only to commercial-grade units; up-screened MIL versions are non-RoHS per specification requirements.
What does the "TR" suffix indicate in 1N4710UR-1/TR?
The "TR" suffix in 1N4710UR-1/TR indicates tape-and-reel packaging per EIA-481-1-B standard, intended for automated SMT placement. The device remains functionally identical to the bulk version; only the packaging format differs. Tape-and-reel ordering ensures consistent feeding in high-volume manufacturing lines.
Can the 1N4710UR-1/TR be used in high-temperature environments?
Yes, the 1N4710UR-1/TR is rated for junction temperatures from –65 °C to +175 °C and features a hermetically sealed DO-213AA glass package that maintains parameter stability under thermal stress. Its RθJL = 100 °C/W enables effective heat transfer to the PCB end-cap pads, supporting reliable operation in under-hood automotive or downhole industrial applications.
Does the 1N4710UR-1/TR require external heatsinking?
No external heatsink is required for the 1N4710UR-1/TR at ambient temperatures below 50 °C or end-cap temperatures below 125 °C, as its 0.5 W power rating is fully usable under those conditions. Thermal management relies on the PCB copper area under the end caps; the recommended footprint (page 5) ensures RθJL = 100 °C/W without added hardware.
1N4710UR-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):
- 25 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 10 nA @ 19 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
1N4710UR-1/TR FAQ
1.How can I place an order for 1N4710UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4710UR-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 1N4710UR-1/TR reliable?
The price and inventory of 1N4710UR-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 1N4710UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4710UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4710UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4710UR-1/TR?
1N4710UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4710UR-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 1N4710UR-1/TR?
For technical support, including 1N4710UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4710UR-1/TR requirements.
6.How does Aetrix verify that 1N4710UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4710UR-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 1N4710UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4710UR-1/TR?
All 1N4710UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4710UR-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 1N4710UR-1/TR part is unused and in its original packaging.
Return procedure for 1N4710UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4710UR-1/TR Tags
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