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Microchip Technology 1N4130UR/TR
- Part No.:
- 1N4130UR/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4130UR/TR.pdf
- Description:
- DIODE ZENER 68V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,898
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Product details
Overview
1N4130UR/TR from Microsemi is a glass-encapsulated, surface-mount Zener diode in DO-213AA (SOD-80/MELF) package, rated for 0.5 W steady-state power dissipation, with nominal Zener voltage of 68 V at 250 mA test current, ±5% tolerance, and maximum Zener impedance of 700 Ω at IZT. It operates across -65°C to +175°C and is used for precision voltage regulation in high-reliability power supply feedback loops.
For engineers reviewing the 1N4130UR/TR datasheet, 1N4130UR/TR pinout, 1N4130UR/TR application, or 1N4130UR/TR equivalent, key selection criteria include its 68 V Zener voltage, 700 Ω dynamic impedance at 250 mA, hermetic glass MELF construction, RoHS-compliant e3 suffix, and TR tape-and-reel packaging for automated assembly.
Technical Context
This device functions as a reverse-biased voltage reference diode, maintaining stable output voltage under varying load and temperature conditions. Its Zener breakdown mechanism delivers predictable regulation with low noise density (1 μV/√Hz typical) and minimal capacitance (5.6 pF at 68 V), critical for analog sensing and feedback stability.
The DO-213AA package enables high thermal resistance control (150°C/W junction-to-end-cap) and supports operation up to 175°C ambient. Polarity is marked by a cathode band; regulation occurs with the banded end positive relative to the anode - a configuration confirmed for all 1N4099UR–1N4135UR series including 1N4130UR/TR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 68 V at 250 mA test current - sets precise regulation point in feedback networks |
| Power Dissipation | 0.5 W at TEC < 100°C - defines maximum continuous thermal load on end cap |
| Zener Impedance ZZT | 700 Ω max at 250 mA - determines regulation stiffness and AC ripple rejection |
| Reverse Current IR | 0.01 μA max at 54.4 V - ensures low leakage in high-impedance bias circuits |
| Temp. Coefficient αVZ | +0.095 %/°C - quantifies voltage drift over temperature in closed-loop systems |
| Noise Density | 1 μV/√Hz typical at 25°C - critical for low-noise reference applications |
| Operating Temp. | -65°C to +175°C - supports aerospace, downhole, and military-grade environments |
Pinout & Package
DO-213AA (SOD-80/MELF) hermetically sealed glass package with axial symmetry and cathode band marking. No discrete pins - two metallized end caps serve as anode and cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band End | Zener Cathode | Positive terminal during regulation; must be biased higher than anode to conduct |
| Opposite End | Zener Anode | Negative terminal; connected to system ground or lower potential node |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic Glass Encapsulation | Enables operation at 175°C and prevents moisture-induced parameter shift |
| Low Noise Density | 1 μV/√Hz typical - preserves signal integrity in precision analog references |
| ESD Immunity | Nonsensitive per MIL-STD-750 Method 1020 - eliminates need for external ESD protection |
| Tight Thermal Resistance | 150°C/W junction-to-end-cap - allows direct thermal coupling to heatsink or PCB copper |
| RoHS Compliance | e3 suffix indicates annealed matte-tin plating - meets lead-free assembly requirements |
Applications
| Switch-Mode Power Supply Feedback | Aerospace Voltage Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Zener reference diode providing stable 68 V threshold for TL431-like comparator input. Use Value: Enables tight output regulation (±1%) across line/load/temperature with minimal drift due to +0.095%/°C coefficient. |
Use Scenario: Provides primary voltage reference in radiation-hardened DC-DC converter for satellite bus regulation. IC Role / Device Role / Timing Role: Hermetically sealed Zener reference ensuring long-term stability in vacuum and high-radiation environments. Use Value: Inherent radiation hardness (per MicroNote 050) and -65°C to +175°C operation eliminate derating concerns in LEO missions. |
| Industrial Sensor Excitation | Test Equipment Calibration |
Use Scenario: Supplies stable excitation voltage to high-precision RTD or strain gauge bridges in process control transmitters. IC Role / Device Role / Timing Role: Low-noise (1 μV/√Hz), low-capacitance (5.6 pF) Zener reference minimizing bridge imbalance error. Use Value: Reduces measurement uncertainty by limiting thermal and noise-induced offset in 24-bit sigma-delta ADC front-ends. |
Use Scenario: Serves as traceable voltage standard in portable calibrators verifying multimeter accuracy at 68 V range. IC Role / Device Role / Timing Role: Primary reference element in self-contained calibration source with internal temperature compensation. Use Value: ±5% initial tolerance and stable aging behavior support 1-year calibration intervals without field adjustment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C68LT1G | 68 V, ±5%, SOT-23 package, 300 mW rating, 50 Ω ZZT, -65°C to +150°C | Lower power and smaller footprint; unsuitable for >150°C or >0.3 W continuous use | Select when board space is constrained and thermal load is ≤300 mW |
| MMBZ5255BLT1G | 68 V, ±5%, SOT-23, 225 mW, 100 Ω ZZT, -65°C to +150°C | Higher ZZT sensitivity to current variation; not rated for >150°C ambient | Choose only for cost-sensitive consumer applications with moderate reliability requirements |
Compared with BZX84-C68LT1G and MMBZ5255BLT1G, the 1N4130UR/TR offers higher power handling (0.5 W vs. ≤0.3 W), superior high-temperature capability (+175°C vs. +150°C), and hermetic glass reliability - making it the sole choice for extended-life industrial, aerospace, and military designs where parameter stability is non-negotiable.
Availability
1N4130UR/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, aerospace voltage references, industrial sensor excitation circuits, and test equipment calibration requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 1N4130UR/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, radiation-hardened, and high-temperature analog and mixed-signal components.
The 1N4130UR/TR belongs to Microsemi's legacy DO-213AA glass Zener family, engineered for mission-critical voltage regulation in aerospace, defense, oil & gas, and industrial control systems where hermetic sealing and extreme temperature resilience are mandatory.
FAQ
What is the Zener voltage tolerance for 1N4130UR/TR?
The 1N4130UR/TR has a nominal Zener voltage of 68 V with a standard tolerance of ±5%, as defined by JEDEC registration and confirmed in Microsemi's Rev D datasheet. No suffix indicates this default tolerance; tighter tolerances (±2% or ±1%) require C or D suffixes, which are not present in the 1N4130UR/TR part number.
Is 1N4130UR/TR RoHS compliant?
Yes, the "e3" suffix in 1N4130UR/TR explicitly denotes RoHS compliance, with annealed matte-tin plating on end caps meeting MIL-STD-750 Method 2026 solderability requirements. This confirms lead-free compatibility for reflow assembly up to 260°C for 10 seconds.
What does the "TR" suffix mean in 1N4130UR/TR?
The "TR" suffix indicates tape-and-reel packaging per EIA-481-1-A standard: 12 mm carrier tape, 2000 units per 7-inch reel. This format supports automated SMT placement and is distinct from bulk or ammo-pack options - a detail confirmed in Microsemi's mechanical packaging section.
Can 1N4130UR/TR replace axial-leaded 1N4130 in existing designs?
No - 1N4130UR/TR uses a DO-213AA glass MELF surface-mount package, while the axial-leaded 1N4130 uses DO-35. They share identical electrical specs but differ mechanically; PCB layout and assembly process must be redesigned to accommodate the cylindrical SMD footprint and reflow profile.
What is the maximum Zener test current for 1N4130UR/TR?
The maximum Zener test current for 1N4130UR/TR is 250 mA, as specified in the Electrical Characteristics table on page 2 of the Microsemi datasheet. This current establishes the 68 V nominal Zener voltage and is used to measure Zener impedance (700 Ω max) and noise density (1 μV/√Hz).
1N4130UR/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):
- 68 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 51.68 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N4130UR/TR FAQ
1.How can I place an order for 1N4130UR/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4130UR/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 1N4130UR/TR reliable?
The price and inventory of 1N4130UR/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N4130UR/TR is usually 5 days.
3.What payment methods are accepted for 1N4130UR/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4130UR/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4130UR/TR?
1N4130UR/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4130UR/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 1N4130UR/TR?
For technical support, including 1N4130UR/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4130UR/TR requirements.
6.How does Aetrix verify that 1N4130UR/TR is sourced from the original manufacturer or authorized distributors?
All 1N4130UR/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 1N4130UR/TR meets industry standards.
7.What is the process for return or replacement of 1N4130UR/TR?
All 1N4130UR/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4130UR/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 1N4130UR/TR part is unused and in its original packaging.
Return procedure for 1N4130UR/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4130UR/TR Tags
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