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Microchip Technology JANS1N4627-1/TR
- Part No.:
- JANS1N4627-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4627-1/TR.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:4,099
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Product details
Overview
JANS1N4627-1/TR from Microsemi is a 500 mW, 6.2 V Zener voltage regulator diode in DO-35 glass package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers ±1% Zener voltage tolerance, 1200 Ω dynamic impedance at 250 mA test current, and maximum noise density of 5 µV/√Hz.
For engineers reviewing the JANS1N4627-1/TR datasheet, JANS1N4627-1/TR pinout, JANS1N4627-1/TR application, or JANS1N4627-1/TR equivalent, this page provides verified electrical parameters, military-grade qualification context, thermal derating behavior, and direct alternatives with documented voltage/tolerance/package alignment.
Technical Context
The JANS1N4627-1/TR operates as a precision shunt voltage reference with metallurgically bonded construction ensuring stable regulation across -65°C to +175°C junction temperature range. Its 6.2 V nominal Zener voltage exhibits a temperature coefficient of -0.010/+0.050 %/°C, enabling predictable drift compensation in analog power supply feedback paths.
Designed for low-noise operation, it achieves 5 µV/√Hz noise density at IZT = 250 mA and maintains ≤5.0 µA reverse leakage at VR = 5.0 V. Thermal resistance is 250 °C/W junction-to-lead (3/8″ lead length), supporting reliable 500 mW dissipation with linear derating above 50 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 6.2 V ±1% at 250 mA - enables precise 6.2 V reference generation with tight tolerance for feedback sensing |
| Power Dissipation | 500 mW at 25 °C lead temperature - supports robust regulation in compact axial-leaded layouts |
| Zener Impedance | 1200 Ω max at 250 mA - ensures stable output under varying load current without excessive voltage sag |
| Noise Density | 5 µV/√Hz max at 250 mA - critical for low-noise analog references in instrumentation and signal conditioning |
| Reverse Leakage | 5.0 µA max at 5.0 V - guarantees minimal error current in high-impedance bias networks |
| Temp Coefficient | -0.010/+0.050 %/°C - allows predictable voltage drift modeling over extended temperature ranges |
| Junction Temp Range | -65 °C to +175 °C - validated for extreme-environment deployment in space and avionics systems |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode band marking. Cathode terminal is banded end; device operates with banded end positive relative to anode for Zener regulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or lower-potential rail; establishes return path for Zener current |
| Cathode | Regulated output node | Banded end supplies stable 6.2 V reference; must be biased positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space-level) reliability including radiation hardness per MicroNote 050 |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock |
| 1% Zener voltage tolerance | Reduces need for external trimming in precision reference circuits |
| Low capacitance (typ. <2 pF) | Minimizes high-frequency loading on sensitive oscillator or filter nodes |
| ESD immunity per MIL-STD-750 Method 1020 | Enables safe handling during manual assembly without special grounding protocols |
Applications
| Avionics Power Monitoring | Satellite DC-DC Converter Feedback |
|---|---|
Use Scenario: Monitoring regulated 28 V bus voltage in flight control computers using resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 6.2 V shunt reference providing stable scaling point for voltage measurement circuitry. Use Value: ±1% tolerance and -65°C to +175°C operation ensure accurate bus telemetry across full aircraft envelope. | Use Scenario: Setting output voltage of radiation-hardened isolated DC-DC converter in LEO satellite payload. IC Role / Device Role / Timing Role: Primary Zener reference in optocoupler feedback loop controlling secondary-side regulation. Use Value: JANS qualification and inherent radiation hardness eliminate need for additional shielding or redundancy. |
| Missile Guidance Sensor Biasing | Nuclear Plant Control System Reference |
Use Scenario: Providing stable bias voltage to piezoelectric accelerometers in tactical missile inertial measurement units. IC Role / Device Role / Timing Role: Low-noise 6.2 V reference source for sensor signal conditioning amplifiers. Use Value: 5 µV/√Hz noise density prevents degradation of micro-g acceleration resolution. | Use Scenario: Generating calibration reference for analog input modules in safety-critical reactor protection systems. IC Role / Device Role / Timing Role: Long-term stable voltage standard used during periodic field verification of 4–20 mA loop accuracy. Use Value: Hermetic DO-35 package and JANS qualification ensure >20-year parametric stability under continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4627-1 | Same 6.2 V ±1%, DO-35 package, but qualified only to JANTXV level (not JANS); higher allowable failure rate | Lacks full space-level radiation hardness and extended life testing required for Class S missions | Select when cost sensitivity outweighs need for full JANS screening in non-space-critical defense platforms |
| 1N4627US-1 | Same electrical specs and DO-35 package, but commercial-grade (non-mil-qualified); RoHS-compliant matte-tin plating | No MIL-PRF-19500 qualification; unsuitable for environments requiring radiation tolerance or extended temperature validation | Use only in benign industrial or lab environments where military reliability is not mandated |
Compared with JANS1N4627-1/TR, JANTXV1N4627-1 offers reduced screening rigor and lower cost for defense electronics not requiring space qualification, while 1N4627US-1 serves commercial designs needing identical Zener performance without military traceability or environmental hardening.
Availability
JANS1N4627-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite DC-DC converter feedback, and missile guidance sensor biasing requiring stable component supply with full JANS traceability and lot-level documentation.
Supply support for JANS1N4627-1/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 analog and mixed-signal ICs, RF solutions, and radiation-hardened components for aerospace, defense, and industrial markets.
The JANS1N4627-1/TR belongs to Microsemi's legacy 1N46xx-1 series of metallurgically bonded Zener diodes, engineered specifically for mission-critical voltage reference applications demanding MIL-PRF-19500 compliance and extreme environmental resilience.
FAQ
What is the Zener voltage tolerance of JANS1N4627-1/TR?
JANS1N4627-1/TR has a nominal Zener voltage of 6.2 V with ±1% tolerance, measured at 250 mA test current and 25 °C ambient. This tight tolerance is achieved through rigorous JANS-level screening and is specified in the Electrical Characteristics table on page 3 of T4-LDS-0245-2 Rev. 1.
Is JANS1N4627-1/TR compatible with lead-free soldering processes?
JANS1N4627-1/TR features tin-lead plating per MIL-STD-750 Method 2026 and is rated for 10 s at 260 °C solder temperature. While not RoHS-compliant (e3 suffix is commercial-only), its solderability is fully validated for standard SnPb reflow and hand-soldering in military assembly lines.
What is the maximum reverse leakage current for JANS1N4627-1/TR?
JANS1N4627-1/TR specifies a maximum reverse leakage current (IR) of 5.0 µA at VR = 5.0 V and 25 °C. This value is confirmed in the Electrical Characteristics table on page 3 of the official Microsemi datasheet T4-LDS-0245-2 Rev. 1.
Does JANS1N4627-1/TR require heatsinking in typical applications?
JANS1N4627-1/TR does not require external heatsinking at 500 mW dissipation when mounted with 3/8″ (10 mm) lead length from body, per RθJL = 250 °C/W. Derating begins linearly at 50 °C lead temperature, reaching zero at 175 °C - consistent with standard DO-35 axial-leaded thermal design practice.
How is polarity marked on JANS1N4627-1/TR?
JANS1N4627-1/TR uses a cathode band to indicate polarity: the banded end is the cathode and must be held positive relative to the unbanded (anode) end for proper Zener regulation. This marking convention is defined in the Mechanical and Packaging section of T4-LDS-0245-2 Rev. 1.
JANS1N4627-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.2 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 5.7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JANS1N4627-1/TR FAQ
1.How can I place an order for JANS1N4627-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4627-1/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 JANS1N4627-1/TR reliable?
The price and inventory of JANS1N4627-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4627-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4627-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4627-1/TR transactions.
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4.How is shipping managed for JANS1N4627-1/TR?
JANS1N4627-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4627-1/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 JANS1N4627-1/TR?
For technical support, including JANS1N4627-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4627-1/TR requirements.
6.How does Aetrix verify that JANS1N4627-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4627-1/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 JANS1N4627-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4627-1/TR?
All JANS1N4627-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4627-1/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 JANS1N4627-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4627-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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