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Microchip Technology JANS1N4625C-1/TR
- Part No.:
- JANS1N4625C-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4625C-1/TR.pdf
- Description:
- DIODE ZENER 5.1V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:9,701
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Product details
Overview
JANS1N4625C-1/TR from Microsemi is a 5.1 V, 2% 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 1500 Ω dynamic impedance and ±0.045%/°C to +0.030%/°C temperature coefficient.
For engineers reviewing the JANS1N4625C-1/TR datasheet, JANS1N4625C-1/TR pinout, JANS1N4625C-1/TR application, or JANS1N4625C-1/TR equivalent, key selection factors include its JANS-level radiation hardness, 2% Zener voltage tolerance, low noise density (2 µV/√Hz), and hermetically sealed axial-leaded construction for mission-critical power rail stabilization.
Technical Context
This device operates as a precision shunt voltage regulator in reverse-biased breakdown mode, with cathode band marking polarity. Its metallurgical bond ensures mechanical robustness under thermal cycling and shock, while its DO-35 glass package provides hermetic sealing essential for space-grade reliability.
The JANS1N4625C-1/TR exhibits a Zener voltage of 5.1 V at 250 mA, dynamic impedance of 1500 Ω, and maximum reverse leakage of 5.0 µA at 3.0 V - all specified at 25 °C and validated across -65 °C to +175 °C junction temperature range per MIL-PRF-19500/435.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 5.1 V at 250 mA - defines nominal regulation point for precision reference design |
| Zener Tolerance | ±2% - tighter than standard 5% parts, enabling higher accuracy in feedback loops |
| Power Rating | 500 mW - supports stable regulation up to 98 mA at 5.1 V before thermal derating begins |
| Dynamic Impedance ZZT | 1500 Ω - determines output voltage variation under load transients |
| Noise Density ND | 2 µV/√Hz - critical for low-noise analog references and sensor excitation circuits |
| Temp Coefficient αVZ | -0.045 to +0.030 %/°C - enables predictable drift compensation in wide-temperature environments |
| Max Reverse Current IR | 5.0 µA @ 3.0 V - ensures minimal leakage in standby or low-power modes |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with cathode indicated by color band; 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; must be held at lower potential than cathode during regulation |
| Cathode | Zener regulation output | Banded end; connected to input supply rail to clamp voltage at 5.1 V relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for Class S (space) applications with full lot traceability and radiation hardness per MicroNote 050 |
| Metallurgical bond construction | Eliminates die attach voids and interfacial delamination under thermal shock and vibration stress |
| Hermetic glass DO-35 package | Prevents moisture ingress and long-term parameter drift in humid or corrosive environments |
| Low noise density | 2 µV/√Hz at 5.1 V enables use in precision ADC references and low-noise op-amp biasing |
| ESD immunity | Non-sensitive per MIL-STD-750 method 1020 - no handling precautions required beyond standard ESD protocols |
Applications
| Avionics Power Monitoring | Satellite Bus Voltage Reference |
|---|---|
Use Scenario: Monitoring 28 V DC bus voltage in flight control computers using resistive divider into ADC. IC Role / Device Role / Timing Role: Precision shunt reference providing stable 5.1 V reference for ADC conversion. Use Value: ±2% tolerance and low tempco ensure <±0.5% total error over -55 °C to +125 °C operating range. | Use Scenario: Generating stable bias for radiation-hardened op-amps in satellite telemetry conditioning circuits. IC Role / Device Role / Timing Role: Low-noise Zener reference source replacing IC-based references where latch-up risk exists. Use Value: 2 µV/√Hz noise density and inherent TID hardness eliminate need for shielding or redundancy. |
| Missile Guidance Sensor Biasing | Nuclear Instrumentation Front-End |
Use Scenario: Supplying regulated bias to piezoelectric accelerometers in high-G launch environments. IC Role / Device Role / Timing Role: Shock-tolerant voltage clamp protecting sensor signal chain from supply transients. Use Value: Metallurgical bond and DO-35 mechanical integrity survive >10,000 g shock per MIL-STD-883 Method 2002. | Use Scenario: Providing reference voltage for pulse-height analyzers in reactor monitoring systems. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining calibration stability under neutron flux. Use Value: Inherent hardness per MicroNote 050 avoids degradation after 100 krad(Si) total ionizing dose exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4625C-1 | Same electrical specs but qualified only to JANTXV level; lacks full JANS screening (e.g., burn-in, lot acceptance tests) | Approved for high-reliability military ground systems but not spaceflight or nuclear-rated programs | Select when JANS-level radiation hardness and extended temperature validation are not required |
| 1N4625C-1/TR | Commercial-grade version; same DO-35 package and 5.1 V/2% specs but no MIL-PRF-19500 qualification | RoHS-compliant (e3 suffix), lower cost, suitable for industrial test equipment or non-safety-critical instrumentation | Choose for cost-sensitive designs where MIL-spec screening adds unnecessary overhead |
Compared with JANTXV1N4625C-1 and 1N4625C-1/TR, the JANS1N4625C-1/TR uniquely provides full JANS-level screening including radiation testing, extended temperature life testing, and lot traceability - making it the only option qualified for Class S space missions and nuclear instrumentation.
Availability
JANS1N4625C-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite bus voltage reference, and missile guidance sensor biasing requiring stable component supply across extended temperature ranges and radiation environments.
Supply support for JANS1N4625C-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 components for aerospace, defense, and industrial markets.
The JANS1N4625C-1/TR belongs to Microsemi's legacy MIL-PRF-19500-qualified Zener diode family, engineered specifically for voltage regulation in radiation-intensive, thermally extreme, and mission-critical electronic systems.
FAQ
What is the Zener voltage and tolerance of JANS1N4625C-1/TR?
The JANS1N4625C-1/TR has a nominal Zener voltage of 5.1 V with a tight ±2% tolerance, measured at 250 mA test current and 25 °C ambient. This tolerance is achieved through post-package screening and is maintained across the full -65 °C to +175 °C junction temperature range per MIL-PRF-19500/435 requirements.
Is JANS1N4625C-1/TR qualified for space applications?
Yes, JANS1N4625C-1/TR is fully qualified to JANS level per MIL-PRF-19500/435, including radiation hardness assurance per Microsemi MicroNote 050. It is approved for Class S space applications and undergoes full lot acceptance testing, burn-in, and extended temperature life screening - unlike JANTX or commercial variants.
What package type does JANS1N4625C-1/TR use?
JANS1N4625C-1/TR uses the hermetically sealed axial-leaded DO-35 (DO-204AH) glass package with tin-lead or RoHS-compliant matte-tin plating. The cathode is marked by a distinct band, and the package meets MIL-STD-750 solderability requirements.
What is the maximum power dissipation of JANS1N4625C-1/TR?
JANS1N4625C-1/TR has a rated average power dissipation of 500 mW at 25 °C lead temperature. Power must be linearly derated starting at 50 °C lead temperature, reaching zero at 175 °C, per the derating curve in the official datasheet T4-LDS-0245-2.
Does JANS1N4625C-1/TR have low noise performance?
Yes, JANS1N4625C-1/TR delivers a noise density of 2 µV/√Hz at 5.1 V and 250 mA, measured in the 1 kHz–3 kHz band. This low-noise characteristic makes it suitable for precision analog references in ADCs, sensor interfaces, and low-drift op-amp bias networks.
JANS1N4625C-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):
- 5.1 V
- Tolerance:
- ±2%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.5 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 3 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)
JANS1N4625C-1/TR FAQ
1.How can I place an order for JANS1N4625C-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4625C-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 JANS1N4625C-1/TR reliable?
The price and inventory of JANS1N4625C-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 JANS1N4625C-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4625C-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4625C-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4625C-1/TR?
JANS1N4625C-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4625C-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 JANS1N4625C-1/TR?
For technical support, including JANS1N4625C-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4625C-1/TR requirements.
6.How does Aetrix verify that JANS1N4625C-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4625C-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 JANS1N4625C-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4625C-1/TR?
All JANS1N4625C-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4625C-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 JANS1N4625C-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4625C-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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