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Microchip Technology 1N3154UR-1/TR
- Part No.:
- 1N3154UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N3154UR-1/TR.pdf
- Description:
- DIODE ZENER 8.4V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:104
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Product details
Overview
1N3154UR-1/TR from Microsemi is a temperature-compensated 8.4 V Zener reference diode in DO-7 (DO-204AA) glass axial-leaded package, rated for ±5% voltage tolerance at 10 mA test current, with 0.01 %/°C temperature coefficient, 15 Ω zener impedance, and 130 mV max voltage drift over –55°C to +100°C. It serves as a precision voltage reference in analog instrumentation calibration circuits.
For engineers reviewing the 1N3154UR-1/TR datasheet, 1N3154UR-1/TR pinout, 1N3154UR-1/TR application, or 1N3154UR-1/TR equivalent, key selection criteria include its low TC stability, hermetic glass packaging, MIL-PRF-19500/158 JANTXV qualification capability, and RoHS-compliant tape-and-reel availability via the "TR" suffix.
Technical Context
This device belongs to Microsemi's JEDEC-registered 1N3154–1N3157A series of zero-TC Zener references, engineered for minimal voltage drift across wide temperature ranges. Its metallurgically bonded junction achieves 0.01 %/°C effective temperature coefficient and 130 mV total ΔVZ over –55°C to +100°C when biased at 10 mA.
The DO-7 package supports axial-leaded mounting with tin-lead or matte-tin plating per MIL-STD-750, and operates up to 175°C storage temperature. It is ESD-insensitive per MIL-STD-750 Method 1020 and rated for 500 mW dissipation at 25°C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.00–8.80 V @ IZT = 10 mA - defines nominal 8.4 V reference with ±5% initial tolerance |
| Temp Coefficient (αVZ) | 0.01 %/°C - ensures <±1.3 mV/°C drift in precision analog references |
| Zener Impedance (ZZT) | 15 Ω @ 1 mA ac superimposed on 10 mA dc - enables stable regulation under dynamic load changes |
| Voltage Drift (ΔVZT) | 130 mV over –55°C to +100°C - guarantees bounded error in industrial temperature environments |
| Max Reverse Current (IR) | 10 μA @ 5.5 V - confirms low leakage for high-impedance reference node integrity |
| Power Dissipation | 500 mW @ TL = 25°C - supports continuous operation in compact PCB layouts with adequate heatsinking |
Pinout & Package
Hermetically sealed DO-7 (DO-204AA) glass axial-leaded package with cathode band marking; polarity requires banded end to be positive relative to unmarked end during forward-biased reference operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Reference ground return | Low-impedance path for bias current return; must connect to system ground or regulated negative rail |
| Cathode (banded end) | Reference output node | Provides stable 8.4 V potential; connects to high-impedance input of op-amp or ADC reference pin |
Key Features
| Feature | Design Value |
|---|---|
| Temperature-compensated Zener structure | 0.01 %/°C TC enables <±0.85 mV error over 0–70°C ambient in calibrated instruments |
| Hermetic glass DO-7 package | Enables operation from –65°C to +175°C and long-term stability in harsh environments |
| MIL-PRF-19500/158 qualification path | Supports JANTXV-level military use via prefix/suffix modification (e.g., JANTXV1N3154-1) |
| RoHS-compliant tape-and-reel option | "TR" suffix denotes EIA-296 compliant packaging for automated SMT-compatible axial insertion |
Applications
| High-Accuracy Digital Multimeters | Industrial Process Transmitters |
|---|---|
Use Scenario: Reference voltage source for 24-bit sigma-delta ADC front-end in handheld DMMs requiring sub-10 ppm stability. IC Role / Device Role / Timing Role: Precision voltage reference for ADC internal gain calibration and offset nulling. Use Value: 130 mV total drift over –55°C to +100°C ensures <0.015% full-scale error without active compensation. | Use Scenario: Stable excitation source for 4–20 mA loop-powered pressure sensors in oil & gas field instrumentation. IC Role / Device Role / Timing Role: Primary reference for voltage-to-current conversion circuitry powering sensor bridges. Use Value: 0.01 %/°C TC maintains loop accuracy within ±0.1% over –40°C to +85°C operating range. |
| Aerospace Avionics Power Monitors | Calibration Equipment for Metrology Labs |
Use Scenario: Reference element in redundant power supply monitoring modules where radiation tolerance and long-term drift are critical. IC Role / Device Role / Timing Role: Voltage reference for comparator-based overvoltage/undervoltage detection thresholds. Use Value: Hermetic DO-7 construction and MIL-qualified variants (e.g., JANTXV1N3154-1) support 10+ year field reliability. | Use Scenario: Primary standard in portable calibration sources used to verify benchtop DMMs and data loggers. IC Role / Device Role / Timing Role: Traceable reference node for programmable voltage outputs with manual trim adjustment. Use Value: Tight 8.00–8.80 V tolerance window allows binning to ±1% or ±2% versions (e.g., 1N3154UR-1/TR-2%) for metrology-grade traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N3155UR-1/TR | 0.005 %/°C TC, 65 mV ΔVZT over –55°C to +100°C - lower drift than 1N3154UR-1/TR | Better suited for extended-temperature industrial controllers requiring tighter regulation | Select when <±0.5 mV/°C drift is required and cost premium is acceptable |
| 1N3156UR-1/TR | 0.002 %/°C TC, 26 mV ΔVZT over –55°C to +100°C - significantly improved stability | Preferred for aerospace avionics and lab-grade calibration where long-term drift dominates error budget | Choose for highest-stability commercial-grade Zener in same DO-7 footprint |
Compared with 1N3154UR-1/TR, the 1N3155UR-1/TR offers half the temperature coefficient and ~50% less voltage drift, while the 1N3156UR-1/TR delivers fivefold TC reduction and near-DC stability suitable for metrology-grade references - all retain identical DO-7 package, polarity, and bias requirements.
Availability
1N3154UR-1/TR is available at Aetrix Electronics and suitable for high-reliability instrumentation, industrial process control, and aerospace power monitoring applications requiring stable component supply with consistent electrical performance and hermetic packaging.
Supply support for 1N3154UR-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 (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, RF, and radiation-hardened components for defense, aerospace, and industrial markets.
The 1N3154UR-1/TR belongs to Microsemi's legacy 1N3154–1N3157A Zener reference diode family, designed specifically for precision voltage referencing in mission-critical systems where long-term stability, temperature insensitivity, and hermetic reliability are mandatory.
FAQ
What is the nominal Zener voltage and tolerance of the 1N3154UR-1/TR?
The 1N3154UR-1/TR has a nominal Zener voltage of 8.4 V with a guaranteed range of 8.00–8.80 V at 10 mA test current, corresponding to ±5% initial tolerance. This tolerance is specified per JEDEC registration and applies to the base part number before optional suffixes like "-1%" or "-2%" are added for tighter binning.
Does the 1N3154UR-1/TR have military qualification, and how is it designated?
Yes - the base 1N3154UR-1/TR can be ordered with JANTXV qualification by using the prefix "JANTXV" and retaining the "-1" suffix, forming "JANTXV1N3154-1". This variant meets MIL-PRF-19500/158 Class V requirements. The "UR" and "TR" suffixes denote RoHS-compliant plating and tape-and-reel packaging, respectively, and remain compatible with military ordering conventions.
What is the maximum operating temperature and power rating for the 1N3154UR-1/TR?
The 1N3154UR-1/TR is rated for continuous operation from –65°C to +175°C storage temperature, with recommended operating range up to +100°C. Its DC power dissipation is 500 mW at 25°C lead temperature (TL), though optimal voltage-temperature stability is achieved at 10 mA bias (≤90 mW dissipation).
How does the temperature coefficient of the 1N3154UR-1/TR affect its performance in real circuits?
The 1N3154UR-1/TR has an effective temperature coefficient of 0.01 %/°C, meaning its output voltage changes by approximately ±0.84 mV per °C around 8.4 V. Over –55°C to +100°C, this results in ≤130 mV total drift - a design-critical bound for analog signal chains where reference stability directly impacts measurement accuracy.
Is the 1N3154UR-1/TR RoHS compliant, and what does the "e3" and "TR" suffix indicate?
Yes - the "UR" in 1N3154UR-1/TR indicates RoHS-compliant matte-tin plating per MIL-STD-750 Method 2026. The "TR" suffix denotes EIA-296 standard tape-and-reel packaging for automated handling. Note that "e3" is an alternate RoHS suffix used on other variants but is not part of this specific orderable number; "UR" fulfills the same compliance requirement.
1N3154UR-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):
- 8.4 V
- Tolerance:
- ±4.76%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 15 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 5.5 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N3154UR-1/TR FAQ
1.How can I place an order for 1N3154UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N3154UR-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 1N3154UR-1/TR reliable?
The price and inventory of 1N3154UR-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 1N3154UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N3154UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N3154UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N3154UR-1/TR?
1N3154UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N3154UR-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 1N3154UR-1/TR?
For technical support, including 1N3154UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N3154UR-1/TR requirements.
6.How does Aetrix verify that 1N3154UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N3154UR-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 1N3154UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N3154UR-1/TR?
All 1N3154UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N3154UR-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 1N3154UR-1/TR part is unused and in its original packaging.
Return procedure for 1N3154UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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