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Microchip Technology 1N4680UR-1/TR
- Part No.:
- 1N4680UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4680UR-1/TR.pdf
- Description:
- DIODE ZENER 2.2V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,981
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Product details
Overview
1N4680UR-1/TR from Microsemi is a 0.5 W surface-mount Zener diode in DO-213AA (SOD80/MLL34) MELF package, rated for 2.2 V nominal Zener voltage at 50 µA test current, ±5% tolerance, with 0.75 V regulation variation and 4.0 µA max reverse leakage at 1.0 V. It delivers stable voltage reference in low-power analog sensing and precision biasing circuits.
For engineers reviewing the 1N4680UR-1/TR datasheet, 1N4680UR-1/TR pinout, 1N4680UR-1/TR application, or 1N4680UR-1/TR equivalent, key selection criteria include its low 50 µA Zener test current, hermetically sealed glass construction, MIL-PRF-19500 up-screening capability, RoHS-compliant commercial version, and minimal 1.0 pF typical capacitance at zero bias.
Technical Context
This Zener diode operates in reverse breakdown to maintain a stable 2.2 V reference across wide temperature (–65 °C to +175 °C) and current ranges. Its metallurgically bonded silicon die ensures high reliability and radiation hardness per MicroNote 050, with thermal resistance of 100 °C/W junction-to-end-cap on FR4 board.
The device exhibits low dynamic impedance due to tight regulation (ΔVZ = 0.75 V between 10 µA and 100 µA), minimal capacitance (<1.0 pF), and ESD insensitivity per MIL-STD-750 Method 1020 - making it suitable for noise-sensitive analog front-ends and space-constrained SMT designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.2 V at 50 µA - defines precise reference point for low-current biasing and sensing |
| Zener Test Current | 50 µA - enables ultra-low-power operation without external current sources |
| Voltage Tolerance | ±5% - standard grade for cost-sensitive industrial and instrumentation applications |
| Max Reverse Leakage | 4.0 µA at 1.0 V - ensures minimal error contribution in high-impedance feedback paths |
| Power Dissipation | 0.5 W - supports continuous regulation in compact SMT layouts with proper PCB copper area |
| Junction Temp Range | –65 °C to +175 °C - qualified for extended-temperature automotive and aerospace environments |
| Package Type | DO-213AA (SOD80/MLL34) - hermetic glass MELF package with end-cap terminations for high-reliability solder joints |
Pinout & Package
DO-213AA (SOD80/MLL34) is a hermetically sealed glass MELF package with two metallized end caps serving as anode and cathode terminals. Cathode is marked by a band; device operates with banded end positive during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener regulation terminal | Connected to higher potential node; reverse-biased to establish 2.2 V reference |
| Anode (unbanded end) | Reference return path | Connected to circuit ground or lower-potential rail; completes Zener conduction path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Eliminates moisture ingress and long-term parameter drift in harsh environments |
| Metallurgical die bonding | Enables high thermal conductivity and radiation hardness per MicroNote 050 |
| Low 50 µA Zener test current | Reduces quiescent power in battery-powered and energy-harvesting systems |
| MIL-PRF-19500 up-screening option | Supports qualification for military, aerospace, and high-reliability industrial programs |
| RoHS-compliant matte-tin plating | Ensures lead-free solder compatibility and compliance with environmental directives |
Applications
| Low-Power Sensor Biasing | Precision Reference for ADC/DAC |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors in portable instrumentation. IC Role / Device Role / Timing Role: Zener voltage reference source establishing fixed bias point for sensor signal conditioning. Use Value: 2.2 V output with <1.0 pF capacitance minimizes phase shift and noise coupling into high-impedance sensor nodes. | Use Scenario: Supplying reference voltage to 12-bit+ analog-to-digital converters in medical data acquisition modules. IC Role / Device Role / Timing Role: Precision shunt reference delivering stable 2.2 V to ADC VREF input. Use Value: ±5% tolerance and low 50 µA test current enable accurate digitization without external trimming or active buffering. |
| Overvoltage Clamp in Signal Lines | Low-Current Power Rail Stabilization |
Use Scenario: Protecting microcontroller I/O pins from transient overvoltage in industrial control interfaces. IC Role / Device Role / Timing Role: Passive clamping element limiting signal swing to 2.2 V above ground. Use Value: Fast response and ESD insensitivity per MIL-STD-750 ensure robust protection without degradation after repeated events. | Use Scenario: Stabilizing 2.2 V supply for low-power logic or real-time clock backup circuits. IC Role / Device Role / Timing Role: Shunt regulator maintaining regulated voltage under variable load conditions. Use Value: 0.5 W dissipation and 220 mA max Zener current support stable regulation even with 10–100 µA load variations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4680US-1/TR | Same electrical specs but in plastic SOD-123 package; no hermetic seal; higher RθJA (350 °C/W) | Limited to commercial-grade, non-radiation-hardened, non-military applications | Select when cost and board space are prioritized over reliability and extended temperature performance |
| BZX55C2V2 | 2.2 V ±5%, 500 mW, DO-35 package; 100 µA test current; 100 nA leakage at 1 V | Higher leakage and larger footprint; not MIL-qualified or radiation-hardened | Select for general-purpose consumer electronics where hermeticity and extreme temp range are unnecessary |
Compared with 1N4680US-1/TR and BZX55C2V2, the 1N4680UR-1/TR offers superior thermal stability, hermetic reliability, and radiation hardness - critical for aerospace, defense, and high-precision analog systems where long-term parameter consistency is mandatory.
Availability
1N4680UR-1/TR is available at Aetrix Electronics and suitable for low-power sensor biasing, precision ADC reference design, and overvoltage protection circuits requiring stable component supply across extended temperature and reliability-critical deployments.
Supply support for 1N4680UR-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, radiation-hardened, and precision analog components for aerospace, defense, and industrial markets.
The 1N4678UR-1 through 1N4717UR-1 series was designed to deliver MIL-qualified, hermetically sealed Zener references for mission-critical voltage regulation where long-term stability and environmental resilience are essential.
FAQ
What is the Zener voltage and tolerance of the 1N4680UR-1/TR?
The 1N4680UR-1/TR has a nominal Zener voltage of 2.2 V at 50 µA test current, with a standard tolerance of ±5%. Tighter tolerances (1% and 2%) are available under different part number suffixes, but the TR-suffixed commercial version shown here is specified at ±5%.
Is the 1N4680UR-1/TR RoHS compliant?
Yes, the 1N4680UR-1/TR is RoHS compliant with matte-tin plating on its end caps, as confirmed in the Microsemi datasheet revision T4-LDS-0240-1 Rev. 2. RoHS compliance applies only to the commercial-grade version - up-screened MIL versions use tin-lead plating.
What package type does the 1N4680UR-1/TR use, and how is polarity marked?
The 1N4680UR-1/TR uses the DO-213AA (SOD80/MLL34) hermetic glass MELF package. Polarity is indicated by a visible band on the cathode end; the device regulates with the banded end held at a higher potential than the unbanded anode end.
Can the 1N4680UR-1/TR be used in high-reliability or aerospace applications?
Yes - the 1N4680UR-1/TR supports MIL-PRF-19500 up-screening and is inherently radiation-hardened per Microsemi's MicroNote 050. Its hermetic glass construction and metallurgical die bonding make it suitable for aerospace, defense, and extended-temperature industrial applications.
What is the maximum reverse leakage current for the 1N4680UR-1/TR?
The maximum reverse leakage current for the 1N4680UR-1/TR is 4.0 µA at 1.0 V reverse voltage, measured at 25 °C. This low leakage ensures minimal error in high-impedance reference and bias networks where current draw must be tightly controlled.
1N4680UR-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):
- 2.2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 4 µA @ 1 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
1N4680UR-1/TR FAQ
1.How can I place an order for 1N4680UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4680UR-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 1N4680UR-1/TR reliable?
The price and inventory of 1N4680UR-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 1N4680UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4680UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4680UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4680UR-1/TR?
1N4680UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4680UR-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 1N4680UR-1/TR?
For technical support, including 1N4680UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4680UR-1/TR requirements.
6.How does Aetrix verify that 1N4680UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4680UR-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 1N4680UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4680UR-1/TR?
All 1N4680UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4680UR-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 1N4680UR-1/TR part is unused and in its original packaging.
Return procedure for 1N4680UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4680UR-1/TR Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
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MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
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BZT52C15S-7-F
Diodes Incorporated
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MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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SMAZ12-13-F
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