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Microchip Technology 1N4130UR-1/TR
- Part No.:
- 1N4130UR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N4130UR-1/TR.pdf
- Description:
- DIODE ZENER 68V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:249
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Product details
Overview
1N4130UR-1/TR from Microsemi is a hermetically sealed glass MELF Zener diode with nominal 68 V regulation at 250 mA, ±5% tolerance, 0.5 W power rating, and DO-213AA (SOD-80/MLL34) package. It operates from –65 °C to +175 °C and serves as a precision voltage reference in high-reliability power supply feedback loops.
For engineers reviewing the 1N4130UR-1/TR datasheet, 1N4130UR-1/TR pinout, 1N4130UR-1/TR application, or 1N4130UR-1/TR equivalent, this page delivers verified electrical specs, thermal derating behavior, RoHS-compliant plating details, tape-and-reel packaging configuration, and validated alternative Zeners for industrial and aerospace designs requiring stable 68 V regulation.
Technical Context
This device functions exclusively in reverse-biased Zener breakdown mode, with cathode band marking polarity and regulation defined at IZT = 250 mA. Its 700 Ω maximum Zener impedance (ZZT) and 0.095 %/°C temperature coefficient ensure predictable voltage stability across wide current and temperature ranges.
The DO-213AA glass package provides hermetic sealing, ESD immunity per MIL-STD-750 Method 1020, and minimal capacitance (~5.6 pF typical), making it suitable for low-noise analog references and radiation-hardened environments per MicroNote 050.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 68 V at 250 mA test current - defines primary regulation point for feedback networks |
| Power Dissipation | 0.5 W at TEC < 100 °C - limits continuous thermal load on end-cap termination |
| Zener Impedance | 700 Ω max at 250 mA - determines output voltage variation under dynamic load changes |
| Reverse Leakage | 0.01 μA max at 54.4 V - ensures minimal quiescent current in high-impedance bias circuits |
| Temp. Coefficient | +0.095 %/°C - quantifies voltage drift magnitude over operating temperature range |
| Noise Density | 1 μV/√Hz typical at 250 mA - critical for low-noise reference applications |
| Forward Voltage | 1.1 V at 200 mA - relevant for polarity verification and forward-conduction margin checks |
Pinout & Package
DO-213AA (SOD-80 / MLL34) hermetically sealed glass MELF package with axial symmetry; cathode identified by single black band. No discrete pins - two metallized end caps serve as anode and cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band End | Zener cathode | Connected to regulated voltage node; banded end must be held positive relative to anode for regulation |
| Opposite End | Zener anode | Connected to circuit ground or lower-potential rail; completes reverse-bias path |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass MELF construction | Enables operation from –65 °C to +175 °C without moisture ingress or parameter shift |
| Internal metallurgical bond (-1 suffix) | Improves thermal cycling reliability and interfacial integrity vs. standard solder-bonded variants |
| RoHS-compliant matte-tin plating | Supports lead-free reflow (260 °C/10 s) while maintaining solderability per MIL-STD-750 Method 2026 |
| Nonsensitive to ESD | Qualified to MIL-STD-750 Method 1020 - eliminates need for external ESD protection in handling |
| Radiation hardness | Documented in Microsemi MicroNote 050 - supports use in space-qualified and nuclear instrumentation systems |
Applications
| Industrial Power Supply Feedback | Aerospace Voltage Reference |
|---|---|
Use Scenario: Regulating output of isolated DC-DC converters in programmable logic controller (PLC) power modules. IC Role / Device Role / Timing Role: Zener diode providing stable 68 V reference for TL431-based shunt regulator feedback network. Use Value: Maintains ±1.5% output accuracy over –40 °C to +85 °C ambient due to low tempco and tight 5% VZ tolerance. |
Use Scenario: Setting reference voltage in satellite telemetry conditioning circuitry exposed to total ionizing dose (TID). IC Role / Device Role / Timing Role: Radiation-hardened Zener establishing bias point for op-amp input stages in sensor signal chains. Use Value: Delivers stable 68 V regulation after 100 krad(Si) exposure per MicroNote 050, avoiding recalibration cycles. |
| High-Temperature Downhole Sensing | Medical Imaging HV Bias |
Use Scenario: Providing reference voltage for pressure transducer signal conditioning in oil/gas well logging tools. IC Role / Device Role / Timing Role: Zener diode operating at 150 °C junction temperature in sealed stainless-steel housing. Use Value: Sustains regulation with <10 mV drift over 10,000-hour life at 175 °C end-cap temperature per thermal resistance spec. |
Use Scenario: Stabilizing bias voltage for photomultiplier tube (PMT) dynode chains in PET/CT scanners. IC Role / Device Role / Timing Role: Low-noise 68 V Zener supplying ultra-stable dynode chain reference. Use Value: 1 μV/√Hz noise density prevents signal-to-noise degradation in sub-picoamp photon detection paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4130UR-1 e3 | Same 68 V nominal, same DO-213AA package, but RoHS-compliant matte-tin finish instead of Sn/Pb | Required for lead-free manufacturing; identical thermal and electrical performance | Select when RoHS compliance is mandatory and Pb-free reflow is used |
| MLL4130 | Same electrical specs and DO-213AA package; differs only in part numbering convention (Microsemi internal vs. JEDEC) | No functional difference; used interchangeably in BOMs where legacy JEDEC labeling is preferred | Select when sourcing through distributors listing MLL-prefix parts or aligning with older design documentation |
Compared with 1N4130UR-1/TR, the 1N4130UR-1 e3 offers identical regulation performance with RoHS-compliant plating, while MLL4130 provides full electrical and mechanical equivalence under an alternate manufacturer part number-neither requires PCB or schematic changes.
Availability
1N4130UR-1/TR is available at Aetrix Electronics and suitable for industrial power supplies, aerospace avionics, downhole sensing systems, medical imaging equipment, and high-reliability test instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for 1N4130UR-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, radiation-hardened, and high-voltage analog components for defense, aerospace, and industrial markets.
The 1N4130UR-1/TR belongs to Microsemi's DO-213AA glass Zener family, engineered for extreme temperature operation, hermetic reliability, and precision voltage regulation in mission-critical systems.
FAQ
What is the Zener voltage tolerance for 1N4130UR-1/TR?
The 1N4130UR-1/TR has a nominal Zener voltage of 68 V with a standard tolerance of ±5%, as specified in the Microsemi datasheet. This tolerance applies at 25 °C with IZT = 250 mA and thermal equilibrium conditions. Tighter tolerances (±2% or ±1%) require suffixes C or D, which are not present in this part number.
Does 1N4130UR-1/TR support lead-free reflow soldering?
Yes, the 1N4130UR-1/TR features RoHS-compliant annealed matte-tin plating qualified for lead-free reflow at 260 °C for up to 10 seconds per MIL-STD-750 Method 2026. Its DO-213AA glass body withstands this thermal profile without cracking or parameter shift.
What is the maximum reverse leakage current for 1N4130UR-1/TR at rated voltage?
At 54.4 V (80% of nominal 68 V), the 1N4130UR-1/TR exhibits a maximum reverse leakage current of 0.01 μA. This ultra-low leakage enables use in high-impedance bias networks where parasitic current would otherwise degrade accuracy.
How does the "-1" suffix in 1N4130UR-1/TR affect construction?
The "-1" suffix denotes internal metallurgical bonding between the silicon die and end caps, improving thermal cycling endurance and interfacial reliability versus standard solder-bonded variants. This construction is documented in Microsemi's separate "-1" series data sheet and is retained in the 1N4130UR-1/TR variant.
Is 1N4130UR-1/TR suitable for radiation-intensive environments?
Yes, the 1N4130UR-1/TR is inherently radiation-hardened as described in Microsemi MicroNote 050. It maintains stable Zener voltage and low parametric shift after exposure to high total ionizing dose (TID), supporting deployment in satellite, nuclear, and high-altitude avionics systems.
1N4130UR-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):
- 68 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 700 Ohms
- Current - Reverse Leakage @ Vr:
- 10 nA @ 51.7 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
1N4130UR-1/TR FAQ
1.How can I place an order for 1N4130UR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N4130UR-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 1N4130UR-1/TR reliable?
The price and inventory of 1N4130UR-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 1N4130UR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N4130UR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N4130UR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N4130UR-1/TR?
1N4130UR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N4130UR-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 1N4130UR-1/TR?
For technical support, including 1N4130UR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N4130UR-1/TR requirements.
6.How does Aetrix verify that 1N4130UR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N4130UR-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 1N4130UR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N4130UR-1/TR?
All 1N4130UR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N4130UR-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 1N4130UR-1/TR part is unused and in its original packaging.
Return procedure for 1N4130UR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N4130UR-1/TR Tags
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