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Microchip Technology 1N4698UR-1/TR
- Part No.:
- 1N4698UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4698UR-1/TR.pdf
- Description:
- DIODE ZENER 11V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,794
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Product details
Overview
1N4698UR-1/TR from Microsemi is a 500 mW surface-mount Zener diode in DO-213AA (SOD-80/MLL34) MELF package, rated for 11.0 V nominal Zener voltage at 50 µA test current, ±5% tolerance, with 0.11 V regulation change between 10 µA and 100 µA. It operates across –65 °C to +175 °C and is used for precision low-current voltage reference and regulation in space-constrained analog circuits.
For engineers reviewing the 1N4698UR-1/TR datasheet, 1N4698UR-1/TR pinout, 1N4698UR-1/TR application, or 1N4698UR-1/TR equivalent, key selection criteria include its 11.0 V Zener voltage, 50 µA test current, hermetically sealed glass construction, minimal 0.05 µA reverse leakage at 8.4 V, and suitability for high-reliability commercial and up-screened MIL-PRF-19500 applications.
Technical Context
This device functions as a two-terminal voltage reference regulator operating in reverse breakdown. Its Zener voltage is specified at 50 µA (IZT), with regulation ΔVZ of 0.11 V measured between 10 µA and 100 µA - indicating tight low-current stability ideal for battery-powered or ultra-low-power biasing.
The DO-213AA package uses metallurgically bonded metal end caps on a glass body, enabling hermetic sealing and high thermal reliability. Thermal resistance junction-to-end cap is 100 °C/W, supporting stable operation when mounted on FR4 with recommended footprint, and junction temperature is rated to +175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 11.0 V at 50 µA - sets precise reference point for low-power analog circuits without requiring external bias current amplification. |
| Zener Test Current (IZT) | 50 µA - enables stable regulation in micropower systems where supply current must remain below 100 µA. |
| Voltage Regulation (ΔVZ) | 0.11 V (10 µA to 100 µA) - ensures minimal drift across operating current range, critical for sensor biasing and ADC reference stability. |
| Max Reverse Leakage (IR) | 0.05 µA at 8.4 V - guarantees negligible error contribution in high-impedance feedback or reference divider networks. |
| Power Dissipation (PD) | 0.5 W - supports continuous regulation under moderate load conditions while maintaining thermal safety on standard FR4 PCBs. |
| Junction Temperature Range | –65 °C to +175 °C - allows deployment in extended-temperature industrial, aerospace, and downhole electronics environments. |
| Package Type | DO-213AA (SOD-80 / MLL34) - hermetically sealed MELF glass package with metallurgical end-cap bonding for high reliability and moisture resistance. |
Pinout & Package
DO-213AA (SOD-80/MLL34) is a cylindrical MELF-style glass package with two metallized end caps serving as anode and cathode terminals. Polarity is marked by a single band indicating the cathode end, which must be held positive relative to the anode during Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener regulation terminal | Connected to higher potential node; reverse-biased operation establishes 11.0 V reference drop across device. |
| Anode (unbanded end) | Reference return terminal | Connected to circuit ground or lower-potential rail; completes Zener conduction path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed glass construction | Prevents moisture ingress and long-term parameter drift, ensuring stable VZ over 15+ years in harsh environments. |
| Metallurgically bonded end caps | Eliminates wirebond fatigue and interfacial delamination, delivering >100,000 thermal cycles reliability in aerospace-grade screening. |
| Low 50 µA test current | Enables direct use with high-impedance sources (e.g., voltage dividers, op-amp outputs) without buffering or current boosting. |
| MIL-PRF-19500 up-screening option | Supports qualification to Class H or K levels for mission-critical defense and space applications requiring lot traceability and burn-in. |
| RoHS-compliant matte-tin plating | Ensures solderability per MIL-STD-750 Method 2026 and compatibility with lead-free reflow profiles up to 260 °C for 10 seconds. |
Applications
| High-Voltage Sensor Biasing | Precision Reference for Low-Power ADCs |
|---|---|
Use Scenario: Providing stable bias voltage to piezoresistive pressure sensors in battery-operated IoT nodes. IC Role / Device Role / Timing Role: Zener diode acting as fixed 11.0 V excitation source for Wheatstone bridge sensing elements. Use Value: Delivers <0.11 V regulation shift across 10–100 µA load variation, minimizing measurement offset error in sub-100 µA power budgets. | Use Scenario: Supplying reference voltage to 16-bit SAR ADCs in portable medical instrumentation. IC Role / Device Role / Timing Role: Two-terminal shunt reference establishing clean 11.0 V reference rail independent of supply ripple. Use Value: 0.05 µA leakage at 8.4 V prevents loading of high-impedance reference input, preserving ENOB and reducing calibration drift. |
| Space-Qualified Power Monitor Calibration | Industrial PLC Analog Input Protection |
Use Scenario: Calibrating radiation-hardened DC-DC converter output monitors aboard LEO satellites. IC Role / Device Role / Timing Role: Primary voltage standard traceable to NIST via MIL-PRF-19500 Class K screening and lot-controlled testing. Use Value: Inherent radiation hardness (per MicroNote 050) and –65 °C to +175 °C operation ensure calibration integrity across orbital thermal cycles. | Use Scenario: Clamping transient overvoltage on 4–20 mA current loop inputs in factory automation controllers. IC Role / Device Role / Timing Role: Shunt protection element limiting input voltage to 11.0 V during ESD or surge events. Use Value: Hermetic DO-213AA package withstands repeated 8 kV HBM ESD strikes without parameter shift, per MIL-STD-750 Method 1020. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C11LT1G | 11 V, ±5%, SOT-23 package, 350 mW rating, 5 mA test current, higher leakage (~100 nA at 8.8 V). | Suitable for cost-sensitive consumer PCBs with ample board area; not hermetically sealed or MIL-upscreenable. | Select when volume production, RoHS compliance, and SMT compatibility outweigh need for extended temperature range or radiation hardness. |
| 1N4740A | 10 V, ±5%, DO-41 through-hole package, 1 W rating, 25 mA test current, larger footprint and lower thermal resistance. | Used in legacy industrial power supplies where board real estate and manual assembly are acceptable. | Select when higher power handling (>500 mW) and through-hole assembly are required, but hermeticity and extreme temperature range are not critical. |
Compared with BZX84-C11LT1G and 1N4740A, the 1N4698UR-1/TR offers superior low-current stability (50 µA IZT vs. 5 mA or 25 mA), hermetic reliability, and extended temperature capability - making it optimal for high-integrity, space-constrained, or extended-life analog reference designs.
Availability
1N4698UR-1/TR is available at Aetrix Electronics and suitable for high-reliability voltage reference, sensor excitation, and analog signal conditioning applications requiring stable component supply across aerospace, industrial control, and medical instrumentation programs.
Supply support for 1N4698UR-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 1N4698UR-1/TR belongs to Microsemi's legacy DO-213AA Zener series designed specifically for applications demanding hermetic sealing, low-test-current stability, and MIL-PRF-19500 up-screening capability - particularly in space, avionics, and downhole electronics.
FAQ
What is the Zener voltage tolerance for 1N4698UR-1/TR?
The 1N4698UR-1/TR has a nominal Zener voltage of 11.0 V with a standard tolerance of ±5%. Tighter tolerances (±2% and ±1%) are available under different part number suffixes (e.g., "C" or "D"), but the "UR-1" base designation indicates the ±5% version. This tolerance is verified at 25 °C with 50 µA test current per the T4-LDS-0240-1 datasheet.
Is 1N4698UR-1/TR RoHS compliant?
Yes, the 1N4698UR-1/TR is available in RoHS-compliant form with matte-tin plating on its end caps, designated by the "e3" suffix in the full part nomenclature (e.g., 1N4698UR-1/TR e3). RoHS compliance applies only to commercial-grade versions; up-screened MIL-PRF-19500 variants retain tin-lead plating unless otherwise specified.
What does the "TR" suffix mean in 1N4698UR-1/TR?
The "TR" suffix in 1N4698UR-1/TR indicates tape-and-reel packaging per EIA-481-1-B standard, intended for automated SMT placement. The device is supplied in carrier tape with 2,500 units per reel, compatible with standard pick-and-place equipment. This packaging format is standard for volume production and ensures consistent orientation (cathode band aligned) during assembly.
Can 1N4698UR-1/TR replace 1N4740A in existing designs?
No, 1N4698UR-1/TR is not a direct replacement for 1N4740A due to differences in Zener voltage (11.0 V vs. 10.0 V), package (DO-213AA vs. DO-41), power rating (0.5 W vs. 1.0 W), and test current (50 µA vs. 25 mA). While both are Zener regulators, substitution requires validation of voltage margin, thermal design, and PCB footprint - especially since 1N4698UR-1/TR is surface-mount and smaller.
What is the maximum reverse leakage current for 1N4698UR-1/TR?
The maximum reverse leakage current (IR) for 1N4698UR-1/TR is 0.05 µA at 8.4 V (76% of VZ), as specified in the Electrical Characteristics table on page 3 of T4-LDS-0240-1 Rev. 2. This ultra-low leakage supports high-impedance reference networks and minimizes error in precision analog circuits where loading must be avoided.
1N4698UR-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):
- 11 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- 50 nA @ 8.4 V
- 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
1N4698UR-1/TR FAQ
1.How can I place an order for 1N4698UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4698UR-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 1N4698UR-1/TR reliable?
The price and inventory of 1N4698UR-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 1N4698UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4698UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4698UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4698UR-1/TR?
1N4698UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4698UR-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 1N4698UR-1/TR?
For technical support, including 1N4698UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4698UR-1/TR requirements.
6.How does Aetrix verify that 1N4698UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4698UR-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 1N4698UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4698UR-1/TR?
All 1N4698UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4698UR-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 1N4698UR-1/TR part is unused and in its original packaging.
Return procedure for 1N4698UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4698UR-1/TR Tags
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