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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Microchip Technology 1N6002UR-1/TR

Name: 1N6002UR-1/TR
Brand: Microchip Technology
SKU: 1N6002UR-1/TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 1N6002UR-1/TR

Manufacturer:: Microchip Technology

Category:: Single Zener Diodes

Package:: DO-213AA

Datasheet:: 1N6002UR-1/TR.pdf

Description:: DIODE ZENER 12V 500MW DO213AA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

1N6002UR-1/TR from Microsemi is a surface-mount 12 V Zener diode in DO-213AA (MLL34/SOD80) MELF package, rated for 500 mW power dissipation at 25°C, with ±5% voltage tolerance (B-suffix), 5 mA test current, and 700 Ω dynamic impedance at I_ZT. It serves as a precision voltage reference or shunt regulator in low-power analog circuits, power supply feedback loops, and overvoltage protection stages.

For engineers reviewing the 1N6002UR-1/TR datasheet, 1N6002UR-1/TR pinout, 1N6002UR-1/TR application, or 1N6002UR-1/TR equivalent, key selection criteria include its 12 V nominal Zener voltage, DO-213AA thermal resistance (R_θJA = 300 °C/W), RoHS-compliant matte-tin plating, and MIL-PRF-19500 screening availability via prefix modification.

Technical Context

This device operates in reverse-biased breakdown mode, delivering stable regulation across 1.0 mA to 22 mA dc current (I_ZK to I_ZM). Its Zener voltage exhibits +0.073 %/°C temperature coefficient, minimizing drift over industrial temperature ranges (–65 °C to +175 °C).

The DO-213AA glass package features hermetically sealed metallurgical bonds, end-cap solderability per MIL-STD-750 Method 2026, and cathode polarity indicated by a single band. Capacitance is minimized (typical <33 pF at 12 V), supporting high-frequency stability in reference and clamping applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Nominal Zener Voltage	12 V at 5 mA test current - defines regulation setpoint for feedback or reference circuits
Power Dissipation	0.5 W at 25 °C ambient - limits continuous shunt current to ~42 mA at 12 V
Zener Impedance	700 Ω at I_ZT = 5 mA - determines output voltage variation under load transients
Temp. Coefficient	+0.073 %/°C - ensures predictable voltage drift; +0.88 V total change over –55 °C to +125 °C
Reverse Leakage	≤0.1 µA at 9.1 V - guarantees minimal quiescent current in standby regulation
Package	DO-213AA (MLL34/SOD80) MELF - enables high-reliability surface mount with 0.04 g mass and 150 °C/W junction-to-end-cap thermal resistance

Pinout & Package

DO-213AA (MLL34/SOD80) is a cylindrical glass MELF package with two metallized end caps serving as anode and cathode terminals. Cathode is marked by a single band; operation requires cathode positive relative to anode for Zener conduction.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Reference ground node	Connected to circuit common or lower-potential rail; carries full Zener current during regulation
Cathode (banded end)	Zener regulation node	Connected to regulated voltage point; polarity must be maintained for proper breakdown conduction

Key Features

Feature	Design Value
Hermetic glass construction	Enables long-term stability and moisture resistance without conformal coating
MIL-PRF-19500 screening option	Supports high-reliability aerospace and defense designs via MQ/MX/MV/CDS prefixes
RoHS-compliant matte-tin plating	Ensures lead-free assembly compatibility and solder joint reliability on FR4 PCBs
Low capacitance (<33 pF)	Minimizes signal coupling and phase shift in high-frequency reference or clamp circuits

Applications

Power Supply Feedback	Overvoltage Clamp
Use Scenario: Used in secondary-side feedback loop of isolated DC-DC converters to regulate output voltage via optocoupler interface. IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 12 V threshold for TL431-type error amplifiers. Use Value: Maintains ±1% output regulation across line/load/temperature with <0.1 µA leakage limiting bias current error.	Use Scenario: Placed across sensitive IC inputs to limit transient overvoltage from ESD or inductive kickback. IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing surge energy before downstream logic reaches destructive voltage. Use Value: Responds within nanoseconds due to low junction capacitance and triggers at tightly controlled 12 V ±5%, protecting 12 V-rated interfaces.
Industrial Sensor Reference	Programmable Current Source
Use Scenario: Supplies stable bias voltage to bridge sensor amplifiers in process control transmitters operating from 24 V loop supplies. IC Role / Device Role / Timing Role: Precision voltage reference establishing gain and offset calibration points for instrumentation amplifiers. Use Value: Delivers <10 ppm/°C effective drift (via +0.073 %/°C TC and low thermal resistance) enabling 0.1% accuracy over –40 °C to +85 °C.	Use Scenario: Configured with series resistor to generate fixed 12 V reference current for LED biasing or DAC reference scaling. IC Role / Device Role / Timing Role: Stable voltage source enabling predictable current through external resistor (e.g., 1.2 kΩ → 10 mA). Use Value: Supports accurate current setting with 700 Ω Z_ZT contributing <7 mV error per 1 mA load variation.

Power Supply Feedback

Overvoltage Clamp

Use Scenario: Used in secondary-side feedback loop of isolated DC-DC converters to regulate output voltage via optocoupler interface.

IC Role / Device Role / Timing Role: Shunt voltage reference providing precise 12 V threshold for TL431-type error amplifiers.

Use Value: Maintains ±1% output regulation across line/load/temperature with <0.1 µA leakage limiting bias current error.

Use Scenario: Placed across sensitive IC inputs to limit transient overvoltage from ESD or inductive kickback.

IC Role / Device Role / Timing Role: Fast-acting shunt clamp absorbing surge energy before downstream logic reaches destructive voltage.

Use Value: Responds within nanoseconds due to low junction capacitance and triggers at tightly controlled 12 V ±5%, protecting 12 V-rated interfaces.

Industrial Sensor Reference

Programmable Current Source

Use Scenario: Supplies stable bias voltage to bridge sensor amplifiers in process control transmitters operating from 24 V loop supplies.

IC Role / Device Role / Timing Role: Precision voltage reference establishing gain and offset calibration points for instrumentation amplifiers.

Use Value: Delivers <10 ppm/°C effective drift (via +0.073 %/°C TC and low thermal resistance) enabling 0.1% accuracy over –40 °C to +85 °C.

Use Scenario: Configured with series resistor to generate fixed 12 V reference current for LED biasing or DAC reference scaling.

IC Role / Device Role / Timing Role: Stable voltage source enabling predictable current through external resistor (e.g., 1.2 kΩ → 10 mA).

Use Value: Supports accurate current setting with 700 Ω Z_ZT contributing <7 mV error per 1 mA load variation.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Zener regulation applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX55C12	Same 12 V, ±5% rating but in DO-35 axial package; higher R_θJA (~500 °C/W); no MIL screening path	Requires through-hole mounting; unsuitable for automated SMT lines or high-density layouts	Select when legacy through-hole design or cost sensitivity outweighs SMT efficiency and thermal performance
MMBZ5242B	SOT-23 package; same 12 V, ±5%; lower power (350 mW); higher Z_ZT (1000 Ω); no MIL option	Limited to low-current (<30 mA) regulation; not suitable for >100 mW continuous dissipation	Choose for space-constrained PCBs where 0.5 W rating is unnecessary and footprint reduction is critical

Compared with BZX55C12 and MMBZ5242B, the 1N6002UR-1/TR offers superior thermal performance (R_θJA = 300 °C/W), direct MIL-PRF-19500 qualification path, and MELF reliability-making it optimal for industrial and aerospace shunt regulation where stability, power margin, and screening compliance are essential.

Availability

1N6002UR-1/TR is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and industrial sensor reference applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.

Supply support for 1N6002UR-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 1N6002UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener diode family, engineered for precision voltage regulation in mission-critical systems where thermal stability, hermetic packaging, and military-grade screening are mandatory.

FAQ

What is the Zener voltage tolerance of the 1N6002UR-1/TR?

The 1N6002UR-1/TR has a nominal Zener voltage of 12 V with ±5% tolerance (B-suffix), meaning its actual breakdown voltage falls between 11.4 V and 12.6 V when tested at 5 mA. This tolerance is confirmed in the Electrical Characteristics table on page 3 of Microsemi T4-LDS-0228-1 Rev. 1, and applies across the full operating temperature range of –65 °C to +175 °C.

Is the 1N6002UR-1/TR RoHS compliant?

Yes, the 1N6002UR-1/TR is RoHS compliant (e3 suffix), featuring matte-tin plating on both end caps. Per Microsemi documentation, RoHS compliance is available for commercial-grade versions only; military-screened variants (MQ/MX/MV/CDS prefixes) retain tin-lead plating unless otherwise specified.

What does the "TR" suffix indicate in 1N6002UR-1/TR?

The "TR" suffix denotes tape-and-reel packaging per EIA-481-B standard using 12 mm carrier tape. This format supports automated SMT placement and is the default for volume orders. The base part number 1N6002UR-1 refers to the same electrical and mechanical specifications but in bulk or ammo-pack formats.

Can the 1N6002UR-1/TR be used in high-temperature environments?

Yes, the 1N6002UR-1/TR is rated for junction and storage temperatures from –65 °C to +175 °C. Its DO-213AA glass package and metallurgical bonds ensure stability under thermal cycling. Derating is required above 25 °C ambient: power dissipation decreases linearly to zero at 150 °C ambient (per Figure 1 derating curve in T4-LDS-0228-1).

What is the maximum Zener current (I_ZM) for the 1N6002UR-1/TR?

The maximum dc Zener current for the 1N6002UR-1/TR is 22 mA at 25 °C ambient, calculated from P_D = 0.5 W and V_Z = 12 V (I_ZM = P_D/V_ZM, where V_ZM = 12.6 V max). This value is confirmed in the Electrical Characteristics table on page 3 of T4-LDS-0228-1 Rev. 1.

1N6002UR-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):: 12 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

1N6002UR-1/TR FAQ

1.How can I place an order for 1N6002UR-1/TR through Aetrix?

Please submit a Request for Quotation (RFQ) for 1N6002UR-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 1N6002UR-1/TR reliable?

The price and inventory of 1N6002UR-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 1N6002UR-1/TR is usually 5 days.

3.What payment methods are accepted for 1N6002UR-1/TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6002UR-1/TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 1N6002UR-1/TR?

1N6002UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 1N6002UR-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 1N6002UR-1/TR?

For technical support, including 1N6002UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6002UR-1/TR requirements.

6.How does Aetrix verify that 1N6002UR-1/TR is sourced from the original manufacturer or authorized distributors?

All 1N6002UR-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 1N6002UR-1/TR meets industry standards.

7.What is the process for return or replacement of 1N6002UR-1/TR?

All 1N6002UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N6002UR-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 1N6002UR-1/TR part is unused and in its original packaging.

Return procedure for 1N6002UR-1/TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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