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Microchip Technology 1N5996UR-1/TR
- Part No.:
- 1N5996UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5996UR-1/TR.pdf
- Description:
- DIODE ZENER 6.8V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,097
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Product details
Overview
1N5996UR-1/TR from Microsemi is a surface-mount 6.8 V, 5% tolerance Zener diode in DO-213AA (MLL34/SOD80) MELF package, rated for 500 mW power dissipation at 25°C, with 8 mA test current, 25 Ω dynamic impedance at IZT, and 2.0 µA max reverse leakage at 5.2 V. It serves as a precision voltage reference or shunt regulator in low-power analog circuits.
For engineers reviewing the 1N5996UR-1/TR datasheet, 1N5996UR-1/TR pinout, 1N5996UR-1/TR application, or 1N5996UR-1/TR equivalent, key selection criteria include Zener voltage tolerance (±5%), thermal resistance (300°C/W), junction temperature range (–65°C to +175°C), RoHS compliance status, and DO-213AA footprint compatibility.
Technical Context
This device operates as a silicon planar Zener diode with metallurgically bonded end caps and hermetically sealed glass construction. Its regulation behavior is defined at IZT = 8.0 mA, where VZ = 6.8 V ±5%, and dynamic impedance ZZT = 25 Ω - critical for stable reference performance under varying load currents.
The diode exhibits a positive temperature coefficient of +0.044%/°C and minimal capacitance (~74 pF typical), making it suitable for DC biasing and low-frequency voltage stabilization rather than high-speed signal applications. Reverse leakage remains ≤2.0 µA at 5.2 V, ensuring low quiescent current draw in standby modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.8 V ±5% at 8.0 mA - defines nominal regulation point with tight tolerance for stable reference accuracy |
| Power Dissipation (PD) | 0.5 W at 25°C ambient - sets maximum continuous DC power handling on FR4 board with 1 oz Cu |
| Dynamic Impedance (ZZT) | 25 Ω at IZT = 8.0 mA - determines output voltage variation under small-signal current changes |
| Reverse Leakage (IR) | ≤2.0 µA at 5.2 V - ensures minimal parasitic current in high-impedance bias networks |
| Junction Temperature Range | –65°C to +175°C - supports operation in extended industrial and aerospace environments |
| Thermal Resistance (RθJA) | 300°C/W - informs derating requirements; power must be reduced above 25°C ambient |
| Package | DO-213AA (SOD80/MLL34) MELF - surface-mount cylindrical glass package with cathode band marking |
Pinout & Package
DO-213AA (SOD80/MLL34) is a hermetically sealed glass MELF package with two metallized end caps. Cathode is marked by a single dark band; polarity requires banded end to be biased positive relative to the unmarked anode end during Zener operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown terminal | Connected to higher potential node; regulates voltage by conducting reverse current when VIN exceeds VZ |
| Anode (unmarked end) | Reference return path | Typically tied to system ground or lower-potential rail; completes Zener conduction loop |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables high reliability and long-term stability in harsh thermal and humidity environments |
| Metallurgically bonded end caps | Ensures robust mechanical attachment and low thermal resistance at solder joints |
| RoHS-compliant matte-tin plating | Supports lead-free reflow assembly without compromising solderability or intermetallic formation |
| ESD insensitivity (MIL-STD-750, Method 1020) | Eliminates need for external ESD protection in handling and board-level integration |
| Radiation-hardened design | Validated per Microsemi MicroNote 050 for use in space-grade and high-reliability systems |
Applications
| Low-Power Voltage Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 6.8 V reference for ADC biasing, op-amp feedback networks, or sensor excitation in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Shunt voltage reference diode regulating node voltage against supply variations and load transients. Use Value: Delivers ±5% voltage accuracy with <25 Ω dynamic impedance, enabling sub-1% system-level reference stability without active circuitry. | Use Scenario: Protecting microcontroller I/O pins or analog front-end inputs from transient overvoltage events up to 10 V. IC Role / Device Role / Timing Role: Passive clamping element diverting excess current to ground when input exceeds 6.8 V + forward drop. Use Value: Limits peak voltage to ≤7.9 V (6.8 V + 1.1 V forward drop) with ≤2.0 µA leakage below clamp threshold, preserving signal integrity. |
| Current Source Biasing | Temperature-Stable Bias Network |
Use Scenario: Establishing constant-current bias for LED drivers or transistor amplifiers in compact consumer electronics. IC Role / Device Role / Timing Role: Zener-based current source using series resistor to set IZ ≈ 8 mA for predictable gain and linearity. Use Value: Maintains regulated current within ±5% across –40°C to +85°C due to +0.044%/°C tempco and low RθJA-driven self-heating. | Use Scenario: Compensating thermistor-based sensor circuits requiring matched temperature coefficients in automotive cabin sensors. IC Role / Device Role / Timing Role: Precision Zener element in voltage divider networks where tempco matching minimizes drift-induced offset. Use Value: Predictable +0.044%/°C coefficient enables direct compensation against NTC thermistors with known β values, reducing calibration overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5231B-T | Same 5.1 V nominal, but ±5% tolerance in DO-35 axial package; higher ZZT = 17 Ω; PD = 500 mW | Requires through-hole PCB layout; less suitable for automated SMT assembly | Select when legacy axial footprint or MIL-PRF-19500 screening is required |
| BZX55C6V8-TR | 6.8 V ±5%, DO-35 package, 500 mW, ZZT = 40 Ω; RoHS compliant; no military screening option | Lacks radiation hardness and MIL-PRF-19500 qualification; lower reliability for aerospace use | Select for cost-sensitive commercial designs where radiation tolerance is unnecessary |
Compared with 1N5996UR-1/TR, the 1N5231B-T offers identical voltage tolerance but requires manual assembly and lacks MELF ruggedness, while BZX55C6V8-TR trades radiation hardness and hermetic sealing for lower cost and broader commercial availability.
Availability
1N5996UR-1/TR is available at Aetrix Electronics and suitable for low-power voltage reference, overvoltage protection, and precision biasing applications requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for 1N5996UR-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 aerospace-grade components.
The 1N5996UR-1/TR belongs to Microsemi's legacy 1N5985BUR–1N6031BUR Zener series, designed specifically for demanding industrial, defense, and space applications requiring hermetic sealing, MIL-PRF-19500 screening, and guaranteed parametric stability over temperature and time.
FAQ
What is the Zener voltage tolerance and test current for the 1N5996UR-1/TR?
The 1N5996UR-1/TR has a nominal Zener voltage of 6.8 V with ±5% tolerance, measured at a test current (IZT) of 8.0 mA. This tolerance ensures predictable regulation performance across production lots, and the specified test current defines the operating point where VZ and dynamic impedance ZZT = 25 Ω are guaranteed per datasheet.
Is the 1N5996UR-1/TR RoHS compliant?
Yes, the 1N5996UR-1/TR is RoHS compliant (per e3 marking), featuring matte-tin plating on its DO-213AA end caps. This version is qualified for lead-free reflow soldering up to 260°C for 10 seconds and meets EU Directive 2011/65/EU requirements for commercial-grade units.
What is the maximum reverse leakage current specification for the 1N5996UR-1/TR?
The 1N5996UR-1/TR specifies a maximum reverse leakage current (IR) of 2.0 µA at 5.2 V. This low leakage ensures minimal power loss in high-impedance reference networks and supports accurate voltage regulation even at near-threshold bias conditions.
Can the 1N5996UR-1/TR be used in high-temperature environments?
Yes, the 1N5996UR-1/TR is rated for junction and storage temperatures from –65°C to +175°C. Its DO-213AA glass package and metallurgical bonding enable reliable operation in extended industrial and aerospace thermal profiles, provided power dissipation is derated per the 300°C/W RθJA curve above 25°C ambient.
What does the "TR" suffix indicate in the 1N5996UR-1/TR part number?
The "TR" suffix in 1N5996UR-1/TR indicates tape-and-reel packaging per EIA-481-B standard with 12 mm carrier tape, optimized for automated SMT placement. This format supports high-volume manufacturing and ensures consistent orientation (cathode band facing designated direction) during pick-and-place operations.
1N5996UR-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):
- 6.8 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
1N5996UR-1/TR FAQ
1.How can I place an order for 1N5996UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5996UR-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 1N5996UR-1/TR reliable?
The price and inventory of 1N5996UR-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 1N5996UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5996UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5996UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5996UR-1/TR?
1N5996UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5996UR-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 1N5996UR-1/TR?
For technical support, including 1N5996UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5996UR-1/TR requirements.
6.How does Aetrix verify that 1N5996UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5996UR-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 1N5996UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5996UR-1/TR?
All 1N5996UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5996UR-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 1N5996UR-1/TR part is unused and in its original packaging.
Return procedure for 1N5996UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5996UR-1/TR Tags
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MM5Z5V1ST1G
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