Microchip Technology 1N6015UR-1/TR
- Part No.:
- 1N6015UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N6015UR-1/TR.pdf
- Description:
- DIODE ZENER 43V 500MW DO213AA
- Quantity:
- Payment:

- Shipping:

Inventory:5,588
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Product details
Overview
1N6015UR-1/TR from Microsemi is a surface-mount 500 mW Zener diode in DO-213AA (MLL34/SOD80) MELF package, rated for 43 V nominal Zener voltage at 2.0 mA test current, with ±5% tolerance (B suffix), 900 Ω maximum dynamic impedance at IZT, and 0.1 µA maximum reverse leakage at 33 V. It regulates voltage in power supply reference and overvoltage protection circuits across industrial temperature ranges.
For engineers reviewing the 1N6015UR-1/TR datasheet, 1N6015UR-1/TR pinout, 1N6015UR-1/TR application, or 1N6015UR-1/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (RθJA = 300 °C/W), low capacitance (<12 pF typical), radiation-hardened construction, and RoHS-compliant commercial-grade availability with TR tape-and-reel packaging.
Technical Context
This device operates as a two-terminal voltage reference by maintaining a stable 43 V across its terminals under reverse-biased breakdown conditions, with regulation specified at IZT = 2.0 mA and lead temperature of 30 °C. Its metallurgically bonded glass package ensures hermetic sealing and high reliability per MIL-PRF-19500 screening options.
The 1N6015UR-1/TR exhibits a positive temperature coefficient of +0.095 %/°C and supports stable operation from –65 °C to +175 °C junction temperature. Its low 0.04 g mass and minimal parasitic capacitance make it suitable for precision analog references where thermal drift and signal integrity are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 43 V ±5% at 2.0 mA - defines precise regulation point for feedback loops and voltage clamping |
| Power Dissipation (PD) | 0.5 W at 25 °C - sets maximum continuous power handling on FR4 PCB with standard footprint |
| Dynamic Impedance (ZZT) | ≤900 Ω at IZT = 2.0 mA - determines regulation stability under varying load currents |
| Reverse Leakage (IR) | ≤0.1 µA at 33 V - ensures minimal quiescent current in high-impedance bias networks |
| Junction Temperature Range | –65 °C to +175 °C - enables deployment in extended-temperature industrial and aerospace environments |
| Thermal Resistance (RθJA) | 300 °C/W - informs PCB copper area requirements for thermal management on 1 oz FR4 |
| Capacitance (Typ.) | <12 pF - preserves high-frequency signal integrity in RF bias and timing circuits |
Pinout & Package
DO-213AA (SOD80 / MLL34) MELF glass package: hermetically sealed cylindrical body with tin-lead or RoHS-compliant matte-tin end-cap plating; 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; establishes return path for Zener current |
| Cathode (banded end) | Regulated output node | Provides stable 43 V reference when reverse-biased; connects to error amplifier input or clamp point |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables operation up to +175 °C junction temperature and inherent radiation hardness per MicroNote 050 |
| Metallurgical bonding | Eliminates wire bonds to improve mechanical robustness and long-term reliability under thermal cycling |
| Low ESD sensitivity | Qualified to MIL-STD-750, Method 1020 - allows handling without special ESD controls in production |
| RoHS-compliant option | e3 suffix available - meets EU RoHS Directive 2011/65/EU for commercial-grade versions only |
| Tape-and-reel packaging | TR suffix denotes EIA-481-B compliant 12 mm carrier tape - supports automated SMT placement |
Applications
| Power Supply Reference | Overvoltage Protection |
|---|---|
Use Scenario: Precision voltage reference in isolated DC-DC converter feedback networks. IC Role / Device Role / Timing Role: Zener diode provides stable 43 V reference to optocoupler input or error amplifier. Use Value: Tight ±5% tolerance and +0.095 %/°C tempco enable <±1.5% total output regulation over –40 °C to +85 °C ambient. | Use Scenario: Clamp circuit protecting microcontroller I/O pins from transient surges. IC Role / Device Role / Timing Role: Reverse-biased 1N6015UR-1/TR shunts excess voltage above 43 V to ground. Use Value: Low 0.1 µA leakage at 33 V minimizes standby current; 0.5 W rating absorbs short-duration transients. |
| Industrial Sensor Biasing | Aerospace Voltage Monitoring |
Use Scenario: Providing excitation voltage to resistive temperature detectors (RTDs) in factory automation systems. IC Role / Device Role / Timing Role: Acts as low-noise, low-capacitance (12 pF) bias source for bridge sensor interfaces. Use Value: Minimal capacitance prevents phase shift in 1 kHz bridge excitation; hermetic package withstands humid industrial environments. | Use Scenario: Monitoring bus voltage in satellite power distribution units requiring radiation tolerance. IC Role / Device Role / Timing Role: Zener reference in comparator-based undervoltage/overvoltage detection circuit. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for additional shielding or derating in LEO missions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N6015UR-1 | No TR suffix - bulk or ammo pack; identical electrical specs and DO-213AA package | Not optimized for automated SMT assembly; requires manual or vibratory bowl feeding | Select 1N6015UR-1/TR when using pick-and-place equipment; choose 1N6015UR-1 for prototyping or low-volume hand-soldered builds |
| BZX84-C43 | SOT-23 package (3.0 × 1.4 × 1.1 mm); 43 V ±5%; 300 mW rating; higher RθJA (~450 °C/W) | Higher thermal resistance limits power handling on small PCBs; smaller footprint saves space but reduces heat dissipation | Choose BZX84-C43 only if board space is constrained and power dissipation remains below 250 mW; 1N6015UR-1/TR preferred for full 0.5 W operation |
Compared with 1N6015UR-1 and BZX84-C43, the 1N6015UR-1/TR delivers superior thermal performance (300 °C/W vs. 450 °C/W), higher power margin (0.5 W vs. 0.3 W), and radiation-hardened reliability-making it optimal for industrial and aerospace voltage reference designs where stability and longevity are critical.
Availability
1N6015UR-1/TR is available at Aetrix Electronics and suitable for industrial power supplies, aerospace voltage monitors, sensor biasing circuits, and overvoltage protection systems requiring stable component supply and long-lifecycle support.
Supply support for 1N6015UR-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 and mixed-signal components for aerospace, defense, and industrial markets.
The 1N6015UR-1/TR belongs to Microsemi's legacy DO-213AA Zener diode family, engineered for precision voltage regulation in harsh-environment applications where hermetic sealing, radiation tolerance, and extended temperature operation are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N6015UR-1/TR?
The 1N6015UR-1/TR has a nominal Zener voltage of 43 V with ±5% tolerance, denoted by the "B" suffix in its part nomenclature. This means the actual measured VZ falls between 40.85 V and 45.15 V when tested at IZT = 2.0 mA and 30 °C lead temperature, per Microsemi T4-LDS-0228-1 Rev. 1 specifications.
Does the 1N6015UR-1/TR require heatsinking for 0.5 W operation?
No external heatsink is required for the 1N6015UR-1/TR at 0.5 W, provided it is mounted on FR4 PCB with recommended footprint (1 oz copper) and ambient temperature remains below 25 °C. Derating begins above 25 °C per Figure 1 in the datasheet, with full power limited to end cap temperature <100 °C.
Is the 1N6015UR-1/TR RoHS compliant?
Yes, the 1N6015UR-1/TR is RoHS compliant when ordered with the "e3" suffix (e.g., 1N6015UR-1/TR e3), indicating matte-tin end-cap plating. RoHS compliance applies to commercial-grade versions only; military-screened variants are not RoHS compliant.
What does the "TR" suffix mean in 1N6015UR-1/TR?
"TR" indicates tape-and-reel packaging per EIA-481-B standard using 12 mm carrier tape. This format enables automated surface-mount assembly. The electrical and mechanical specifications of 1N6015UR-1/TR are identical to the bulk-packaged 1N6015UR-1; only packaging differs.
Can the 1N6015UR-1/TR replace the 1N6015B-1 in axial-leaded designs?
No-the 1N6015UR-1/TR uses DO-213AA (MELF) surface-mount packaging, while the 1N6015B-1 uses DO-35 (axial-leaded) packaging. They share identical electrical specs but differ mechanically; PCB layout and assembly process must be redesigned to accommodate the cylindrical SMD geometry of the 1N6015UR-1/TR.
1N6015UR-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):
- 43 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
1N6015UR-1/TR FAQ
1.How can I place an order for 1N6015UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6015UR-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 1N6015UR-1/TR reliable?
The price and inventory of 1N6015UR-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 1N6015UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N6015UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6015UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6015UR-1/TR?
1N6015UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6015UR-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 1N6015UR-1/TR?
For technical support, including 1N6015UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6015UR-1/TR requirements.
6.How does Aetrix verify that 1N6015UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N6015UR-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 1N6015UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N6015UR-1/TR?
All 1N6015UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6015UR-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 1N6015UR-1/TR part is unused and in its original packaging.
Return procedure for 1N6015UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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