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Microchip Technology JANS1N4627D-1/TR
- Part No.:
- JANS1N4627D-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4627D-1/TR.pdf
- Description:
- DIODE ZENER 6.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:2,564
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Product details
Overview
JANS1N4627D-1/TR from Microsemi is a 6.2 V, 1% tolerance, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability aerospace and defense applications. It delivers stable voltage regulation at 250 mA test current with 1200 Ω dynamic impedance and ±0.010/+0.050 %/°C temperature coefficient.
For engineers reviewing the JANS1N4627D-1/TR datasheet, JANS1N4627D-1/TR pinout, JANS1N4627D-1/TR application, or JANS1N4627D-1/TR equivalent, key selection criteria include its 1% Zener voltage tolerance, JANS-level radiation-hardened qualification, low noise density (5 µV/√Hz), and DO-35 axial-leaded hermetic packaging for thermal stability in harsh environments.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with Zener voltage specified at IZT = 250 mA and characterized over -65°C to +175°C junction temperature range. Its metallurgical bond construction ensures mechanical robustness and long-term parameter stability under thermal cycling and vibration stress.
The JANS1N4627D-1/TR exhibits a positive temperature coefficient (+0.050 %/°C max) above 6.2 V, enabling predictable drift compensation in reference circuits. Its 1200 Ω dynamic impedance at 250 mA and 5.0 µA maximum reverse leakage at VR = 5.0 V support stable regulation across wide current and temperature variations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 6.2 V ±1% at 250 mA - enables precise 6.2 V reference generation with tight initial accuracy |
| Power Dissipation | 500 mW at 25°C - supports continuous regulation in compact through-hole designs without forced cooling |
| Dynamic Impedance ZZT | 1200 Ω at 250 mA - limits output voltage variation under load transients in feedback references |
| Temp Coefficient αVZ | -0.010/+0.050 %/°C - allows predictable drift modeling in temperature-compensated circuits |
| Noise Density ND | 5 µV/√Hz at 250 mA - minimizes broadband noise injection into sensitive analog references |
| Reverse Leakage IR | 5.0 µA max at VR = 5.0 V - ensures low quiescent current in standby regulation paths |
| Junction Temp Range | -65°C to +175°C - validated for operation in extended-temperature military and space platforms |
Pinout & Package
DO-35 (DO-204AH) axial-leaded hermetically sealed glass package with cathode band marking; leads are tin-lead or RoHS-compliant matte-tin plated, solderable per MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; establishes reference potential for Zener regulation |
| Cathode | Zener output node | Banded end; supplies regulated 6.2 V when reverse-biased; must be held positive relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| JANS qualification per MIL-PRF-19500/435 | Meets highest reliability screening for aerospace flight hardware and nuclear systems |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and mechanical vibration |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision reference designs |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over 20+ year service life in sealed enclosures |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 |
Applications
| High-Reliability Power Reference | Aerospace Sensor Biasing |
|---|---|
Use Scenario: Stable 6.2 V reference for ADC voltage references and op-amp bias networks in satellite power management units. IC Role / Device Role / Timing Role: Shunt voltage regulator providing fixed reference potential independent of input rail fluctuations. Use Value: 1% tolerance and -65°C to +175°C operation ensure reference accuracy across orbital thermal cycles without recalibration. | Use Scenario: Bias supply for radiation-hardened pressure and temperature transducers on launch vehicle telemetry systems. IC Role / Device Role / Timing Role: Precision current sink regulating sensor excitation voltage under EMI-rich engine environments. Use Value: Low 5 µV/√Hz noise density prevents signal corruption in microvolt-level sensor outputs. |
| Nuclear Instrumentation Reference | Tactical Radio Voltage Clamp |
Use Scenario: Primary voltage clamp in neutron detector front-end amplifiers requiring long-term stability in high-radiation zones. IC Role / Device Role / Timing Role: Overvoltage protection element limiting amplifier input swing during pulse events. Use Value: JANS qualification and inherent radiation hardness eliminate parametric drift after 100 krad(Si) exposure. | Use Scenario: Zener clamp on RF power amplifier bias rails in manpack radios operating in desert temperature extremes. IC Role / Device Role / Timing Role: Thermal-stable voltage limiter preventing transistor overdrive during battery voltage sag. Use Value: 250 °C/W junction-to-lead thermal resistance enables reliable operation at 75°C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4627D-1 | Same 6.2 V ±1%, DO-35 package, but qualified only to JANTXV level (lower screening than JANS) | Lacks full JANS radiation and burn-in testing; suitable for non-flight-critical subsystems | Select when full JANS qualification is not mandated but 1% tolerance and DO-35 form factor are required |
| 1N4627UR-1TR | Same electrical specs, but in surface-mount DO-213AA package (no axial leads) | Enables automated SMT assembly; requires PCB redesign due to different footprint and thermal path | Select when board space constraints or production automation require SMT mounting over through-hole |
Compared with JANS1N4627D-1/TR, JANTXV1N4627D-1 offers identical regulation performance with reduced reliability screening, while 1N4627UR-1TR provides identical electrical behavior in a surface-mount format-neither is pin-compatible, but both serve as functional alternatives where qualification level or packaging drives selection.
Availability
JANS1N4627D-1/TR is available at Aetrix Electronics and suitable for high-reliability power reference, aerospace sensor biasing, and nuclear instrumentation applications requiring stable component supply across extended product lifecycles.
Supply support for JANS1N4627D-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 aerospace-grade components.
The 1N46xx-1 series was designed specifically for military and space applications demanding guaranteed performance under extreme temperature, radiation, and mechanical stress conditions.
FAQ
What does the "D" suffix indicate in JANS1N4627D-1/TR?
The "D" suffix in JANS1N4627D-1/TR specifies ±1% Zener voltage tolerance at 250 mA test current, per JEDEC nomenclature. This tighter tolerance enables higher-accuracy voltage references compared to standard 5% (blank) or 2% (C) variants. The JANS1N4627D-1/TR maintains this 1% specification across its qualified temperature range and lifetime screening.
Is JANS1N4627D-1/TR compatible with lead-free solder reflow processes?
JANS1N4627D-1/TR features tin-lead plating per MIL-STD-750 method 2026 and is rated for 260°C solder temperature at 10 seconds. While it can withstand lead-free reflow peak temperatures, its termination is not RoHS-compliant (e3 suffix required for RoHS). For JANS1N4627D-1/TR, use SnPb solder or verify compatibility with your process engineer before lead-free assembly.
How does the metallurgical bond improve reliability of JANS1N4627D-1/TR?
The internal metallurgical bond in JANS1N4627D-1/TR replaces traditional adhesive bonding, eliminating interfacial delamination under thermal cycling and mechanical shock. This construction directly supports MIL-PRF-19500/435 JANS qualification by ensuring parameter stability over 1000+ thermal cycles from -65°C to +175°C-critical for JANS1N4627D-1/TR deployment in launch vehicle and satellite systems.
What is the maximum Zener current IZM for JANS1N4627D-1/TR at 25°C?
The maximum Zener current IZM for JANS1N4627D-1/TR is 61.0 mA at 25°C, calculated from its 500 mW power rating and 6.2 V nominal Zener voltage (IZM = PM(AV)/VZ). Derating begins linearly at 50°C ambient, reaching zero at 175°C. This value is confirmed in the Electrical Characteristics table on page 3 of the T4-LDS-0245-2 datasheet for JANS1N4627D-1/TR.
Does JANS1N4627D-1/TR require heatsinking in typical applications?
JANS1N4627D-1/TR does not require external heatsinking in standard applications due to its 250 °C/W junction-to-lead thermal resistance and DO-35 package design optimized for conduction through leads. When mounted with 3/8″ (10 mm) lead length from body on FR4 PCB, it sustains full 500 mW dissipation at 25°C ambient. At elevated ambient temperatures, derating follows the curve in Figure 2 of the JANS1N4627D-1/TR datasheet.
JANS1N4627D-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:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.2 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 5 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)
JANS1N4627D-1/TR FAQ
1.How can I place an order for JANS1N4627D-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4627D-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 JANS1N4627D-1/TR reliable?
The price and inventory of JANS1N4627D-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 JANS1N4627D-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4627D-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4627D-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4627D-1/TR?
JANS1N4627D-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4627D-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 JANS1N4627D-1/TR?
For technical support, including JANS1N4627D-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4627D-1/TR requirements.
6.How does Aetrix verify that JANS1N4627D-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4627D-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 JANS1N4627D-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4627D-1/TR?
All JANS1N4627D-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4627D-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 JANS1N4627D-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4627D-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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