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Microchip Technology 1N5986UR/TR
- Part No.:
- 1N5986UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5986UR/TR.pdf
- Description:
- DIODE ZENER 2.7V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,998
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Product details
Overview
1N5986UR/TR from Microsemi is a surface-mount 2.7 V, 5% tolerance Zener diode in DO-213AA (SOD80/MLL34) MELF package, rated for 500 mW power dissipation at 25°C, with 100 mA test current, 1900 Ω dynamic impedance at IZT, and 75 µA max reverse leakage at 1.0 V. It serves as a precision voltage reference or shunt regulator in low-power analog circuits.
For engineers reviewing the 1N5986UR/TR datasheet, 1N5986UR/TR pinout, 1N5986UR/TR application, or 1N5986UR/TR equivalent, key selection criteria include its 2.7 V nominal Zener voltage, 5% tolerance, DO-213AA thermal resistance (RθJA = 300 °C/W), RoHS-compliant matte-tin plating, and suitability for commercial-grade voltage stabilization under −65 to +175 °C junction temperature range.
Technical Context
This device operates as a silicon planar Zener diode with metallurgically bonded end caps, designed for stable reverse-bias regulation across wide temperature and current ranges. Its breakdown behavior is characterized by a 100 mA test current (IZT) and a knee current (IZK) of 0.25 mA, enabling reliable operation down to low-current biasing.
The DO-213AA glass-encapsulated MELF package provides hermetic sealing and minimal parasitic capacitance (typical <1 pF at low frequencies), supporting high-frequency stability and radiation hardness per MicroNote 050. Thermal performance is defined for FR4 PCB mounting with 1 oz copper and specified footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 2.7 V at 100 mA - defines precise regulation point for low-voltage reference circuits |
| Zener Tolerance | ±5% - ensures voltage accuracy within ±0.135 V for production calibration |
| Power Dissipation | 0.5 W at 25°C ambient - sets maximum continuous DC power before thermal derating applies |
| Dynamic Impedance | 1900 Ω at IZT - indicates voltage regulation sensitivity to current variation |
| Reverse Leakage | 75 µA max at 1.0 V - confirms low off-state current for standby power integrity |
| Junction Temperature Range | −65 to +175 °C - supports operation in extended industrial and aerospace environments |
| Forward Voltage | 1.1 V at 200 mA - defines conduction threshold when used in forward-biased protection paths |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package: hermetically sealed cylindrical body with tin-lead or RoHS-compliant matte-tin plated end caps; cathode indicated by single band; polarity requires banded end to be positive during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground node | Connected to circuit common; forms return path for Zener current during regulation |
| Cathode (banded end) | Regulated output node | Biased positive relative to anode; delivers stable 2.7 V output under reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount DO-213AA package | Enables automated placement and reflow soldering on high-density PCBs without axial lead trimming |
| Metallurgically bonded construction | Ensures long-term bond integrity and thermal cycle reliability under repeated power-on/off stress |
| Non-ESD-sensitive design | Eliminates need for ESD handling protocols during assembly (MIL-STD-750, Method 1020 compliant) |
| Radiation-hardened structure | Validated for total ionizing dose (TID) resilience per Microsemi MicroNote 050, suitable for space-qualified systems |
| RoHS-compliant option | Matte-tin plating meets EU Directive 2011/65/EU for commercial-grade versions only |
Applications
| Low-Voltage Reference Source | Overvoltage Clamp for MCU I/O |
|---|---|
Use Scenario: Providing stable 2.7 V bias for ADC reference inputs or op-amp feedback networks in battery-powered sensors. IC Role / Device Role / Timing Role: Shunt voltage reference diode regulating supply rail against load and temperature drift. Use Value: Maintains ±5% output accuracy over −40 to +85 °C ambient, minimizing calibration drift in portable instrumentation. | Use Scenario: Protecting 3.3 V microcontroller GPIO pins from transient overvoltage events exceeding 2.7 V. IC Role / Device Role / Timing Role: Fast-acting clamp limiting input voltage to safe Zener breakdown level before damage occurs. Use Value: 75 µA leakage at 1.0 V ensures negligible standby current draw while clamping transients within nanoseconds. |
| Temperature-Stable Bias Generator | Low-Power Voltage Monitor |
Use Scenario: Generating bias currents for precision current sources where temperature coefficient must remain below ±100 ppm/°C. IC Role / Device Role / Timing Role: Zener element with +0.075 %/°C tempco used in series with compensating components. Use Value: Predictable positive tempco enables passive compensation in analog front-end designs without active circuitry. | Use Scenario: Detecting brown-out conditions in 2.8–3.0 V supply rails using comparator input referenced to 2.7 V Zener. IC Role / Device Role / Timing Role: Fixed threshold reference enabling deterministic undervoltage lockout (UVLO) activation. Use Value: 100 mA test current ensures stable regulation even under light loading, critical for accurate UVLO hysteresis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5223BTR | 2.5 V nominal, 5% tolerance, DO-35 axial package, 500 mW rating | Requires through-hole PCB layout and manual assembly; higher RθJA (~500 °C/W) | Select when legacy board compatibility or axial mounting is required |
| BZX55-C2V7-TR | 2.7 V nominal, 5% tolerance, DO-35 package, 500 mW, Pro Electron compliant | Same electrical specs but non-MIL-qualified; no radiation hardness or MIL-PRF-19500 screening options | Select for cost-sensitive commercial designs without military or space requirements |
Compared with 1N5986UR/TR, 1N5223BTR offers identical power and tolerance but lacks MELF packaging advantages and radiation hardening; BZX55-C2V7-TR matches voltage and tolerance but omits high-reliability screening and hermetic glass construction, making it unsuitable for mission-critical environments.
Availability
1N5986UR/TR is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage protection, and analog bias generation requiring stable component supply across industrial control, medical sensor modules, and aerospace subsystems.
Supply support for 1N5986UR/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 and mixed-signal ICs, discrete devices, and RF solutions for aerospace, defense, and industrial markets.
The 1N5985BUR–1 to 1N6031BUR-1 series was engineered to deliver MIL-PRF-19500 qualified Zener regulation in compact surface-mount form, targeting applications demanding radiation tolerance, hermetic sealing, and extended temperature operation.
FAQ
What is the nominal Zener voltage and tolerance of the 1N5986UR/TR?
The 1N5986UR/TR has a nominal Zener voltage of 2.7 V with a ±5% tolerance, measured at 100 mA test current (IZT). This means the actual regulated voltage falls between 2.565 V and 2.835 V under standard operating conditions, ensuring predictable performance in precision reference applications.
Is the 1N5986UR/TR RoHS compliant?
Yes, the 1N5986UR/TR is RoHS compliant with matte-tin plating on its end caps, as indicated by the "e3" suffix in Microsemi's nomenclature system. This compliance applies only to commercial-grade versions and meets EU Directive 2011/65/EU requirements for restricted substances.
What package type does the 1N5986UR/TR use, and what are its key mechanical features?
The 1N5986UR/TR uses the DO-213AA (SOD80/MLL34) MELF glass package: a hermetically sealed cylindrical body with metallurgically bonded end caps, cathode band marking, and 0.063–0.067 inch diameter. Its design supports automated SMT placement and provides low parasitic capacitance and radiation hardness.
What is the maximum power dissipation and thermal resistance of the 1N5986UR/TR?
The 1N5986UR/TR is rated for 0.5 W power dissipation at 25°C ambient temperature, with thermal resistance junction-to-ambient (RθJA) of 300 °C/W when mounted on FR4 PCB with 1 oz copper and recommended footprint. Derating begins above 25°C per the published power derating curve.
Does the 1N5986UR/TR have radiation-hardened characteristics?
Yes, the 1N5986UR/TR exhibits inherent radiation hardness validated per Microsemi MicroNote 050, due to its silicon planar Zener structure and hermetic DO-213AA packaging. This makes it suitable for low-dose-rate space and nuclear instrumentation applications where TID resilience is required.
1N5986UR/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):
- 2.7 V
- Tolerance:
- -
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N5986UR/TR FAQ
1.How can I place an order for 1N5986UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5986UR/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 1N5986UR/TR reliable?
The price and inventory of 1N5986UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5986UR/TR is usually 5 days.
3.What payment methods are accepted for 1N5986UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5986UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5986UR/TR?
1N5986UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5986UR/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 1N5986UR/TR?
For technical support, including 1N5986UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5986UR/TR requirements.
6.How does Aetrix verify that 1N5986UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N5986UR/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 1N5986UR/TR meets industry standards.
7.What is the process for return or replacement of 1N5986UR/TR?
All 1N5986UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5986UR/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 1N5986UR/TR part is unused and in its original packaging.
Return procedure for 1N5986UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5986UR/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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BZT52C15-7-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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BZT52C3V6LP-7
Diodes Incorporated
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SMAZ12-13-F
Diodes Incorporated
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