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Microchip Technology JAN1N4616D-1
- Part No.:
- JAN1N4616D-1
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JAN1N4616D-1.pdf
- Description:
- DIODE ZENER 2.2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:7,629
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Product details
Overview
JAN1N4616D-1 from Microsemi is a 1% tolerance, 2.2 V, 500 mW metallurgically bonded glass Zener diode in DO-35 package, qualified to JANS level per MIL-PRF-19500/435 for high-reliability voltage regulation in aerospace and defense power supplies.
For engineers reviewing the JAN1N4616D-1 datasheet, JAN1N4616D-1 pinout, JAN1N4616D-1 application, or JAN1N4616D-1 equivalent, key selection factors include its 1% Zener voltage tolerance, 1300 Ω dynamic impedance at 250 mA test current, -0.075 %/°C temperature coefficient, and hermetically sealed axial-leaded construction for stable regulation under thermal stress.
Technical Context
This device operates as a precision shunt voltage regulator with a nominal Zener voltage of 2.2 V at 250 mA test current (IZT), exhibiting low noise density (1 µV/√Hz) and minimal capacitance. Its metallurgical bond ensures mechanical robustness and long-term stability in harsh environments.
The diode is polarity-marked with a cathode band and must be reverse-biased (banded end positive) for regulation. It supports linear derating from 500 mW at 25 °C to zero at 175 °C ambient on standard FR4 PCBs with defined copper pad geometry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.2 V ±1% at 250 mA - enables precise low-voltage reference generation in analog sensing and bias circuits. |
| Power Dissipation | 500 mW at 25 °C - supports continuous regulation in compact, unheatsinked designs with controlled thermal layout. |
| Dynamic Impedance ZZT | 1300 Ω at IZT = 250 mA - limits output voltage variation under load transients in feedback loops. |
| Temp Coefficient αVZ | -0.075 %/°C - ensures predictable, monotonic drift over -65 to +175 °C operating range. |
| Noise Density ND | 1 µV/√Hz - minimizes added noise in precision reference and low-noise amplifier bias networks. |
| Reverse Leakage IR | 2.0 µA at VR = 1.0 V - maintains low quiescent current in standby or battery-powered regulation stages. |
| Junction Temp Range | -65 to +175 °C - certified for operation in extended-temperature military and space-grade systems. |
Pinout & Package
DO-35 (DO-204AH) axial-leaded glass package with hermetically sealed construction; cathode indicated by single black band; tin-lead or RoHS-compliant matte-tin plating; weight ≈ 0.2 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Reference ground node | Connected to system ground or common return; forms low-impedance path for reverse leakage and regulation current. |
| Cathode | Regulated output node | Banded end; held at stable 2.2 V above anode when reverse-biased; supplies reference voltage to downstream circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 qualification | JANS-level reliability certification confirms suitability for flight-critical avionics and satellite power conditioning. |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal cycling and mechanical shock in launch environments. |
| 1% Zener voltage tolerance | Reduces need for post-assembly trimming in precision voltage references used in ADC/DAC calibration circuits. |
| Low noise density (1 µV/√Hz) | Preserves signal integrity in low-level analog front-ends where reference noise couples into sensitive measurement paths. |
| Hermetic glass sealing | Prevents moisture ingress and parameter drift over decades in sealed enclosures without conformal coating. |
Applications
| Avionics Power Reference | Satellite Sensor Biasing |
|---|---|
Use Scenario: Providing stable 2.2 V reference for analog-to-digital converters in inertial measurement units (IMUs) aboard tactical aircraft. IC Role / Device Role / Timing Role: Shunt voltage regulator establishing precision DC bias point for op-amp input stages and ADC reference buffers. Use Value: 1% tolerance and -0.075 %/°C tempco ensure <±2.5 mV drift across -40 to +85 °C operational envelope, meeting MIL-STD-810G thermal shock requirements. | Use Scenario: Biasing photodiode preamplifiers in star tracker focal plane arrays on LEO satellites. IC Role / Device Role / Timing Role: Low-noise Zener source supplying regulated voltage to ultra-low-input-bias-current op-amps. Use Value: 1 µV/√Hz noise density prevents degradation of sub-picoamp photocurrent resolution, critical for centroid accuracy in attitude determination. |
| Nuclear Instrumentation | Tactical Radio RF Stage Bias |
Use Scenario: Generating reference voltage for pulse-height analyzers in radiation detection systems deployed in nuclear facilities. IC Role / Device Role / Timing Role: Radiation-hardened shunt regulator maintaining stable bias for scintillation detector amplifiers. Use Value: Inherent radiation hardness per MicroNote 050 allows operation up to 100 krad(Si) total ionizing dose without parameter shift, eliminating need for shielding or redundancy. | Use Scenario: Supplying gate bias to GaAs FETs in high-frequency transmit amplifiers of manpack radios operating in desert environments. IC Role / Device Role / Timing Role: Temperature-stable voltage source compensating for FET threshold voltage drift across -30 to +70 °C ambient. Use Value: Linear derating to zero power at 175 °C junction temperature enables reliable operation at 125 °C board temperature without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JAN1N4616C-1 | 2% Zener voltage tolerance instead of 1%; identical electrical specs otherwise. | Suitable for non-critical biasing where tighter tolerance not required; lower cost. | Select when ±2% regulation accuracy meets system error budget and cost optimization is prioritized. |
| 1N4616US-1 | Same 1% tolerance and 2.2 V rating but in surface-mount DO-213AA package; no axial leads. | Required for automated SMT assembly; unsuitable for through-hole or manual prototyping. | Choose for volume production PCBs requiring reflow-compatible packaging and reduced board area. |
Compared with JAN1N4616C-1 and 1N4616US-1, the JAN1N4616D-1 uniquely delivers 1% tolerance in a JANS-qualified axial-leaded DO-35 package-enabling legacy military hardware upgrades without layout changes while meeting stringent accuracy and reliability mandates.
Availability
JAN1N4616D-1 is available at Aetrix Electronics and suitable for avionics power reference, satellite sensor biasing, and nuclear instrumentation requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N4616D-1 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 JAN1N4616D-1 belongs to Microsemi's legacy MIL-PRF-19500/435 qualified Zener diode family, designed specifically for precision voltage regulation in mission-critical systems where parameter stability under extreme thermal, radiation, and mechanical stress is mandatory.
FAQ
What is the Zener voltage tolerance of JAN1N4616D-1?
JAN1N4616D-1 has a nominal Zener voltage of 2.2 V with a guaranteed tolerance of ±1%, as indicated by the "D" suffix in the part number per Microsemi's nomenclature. This tight tolerance is maintained across the full operating temperature range of -65 to +175 °C and supports high-accuracy reference applications without external trimming.
Is JAN1N4616D-1 qualified for space applications?
JAN1N4616D-1 is qualified to JANS level per MIL-PRF-19500/435, which includes screening for radiation hardness per Microsemi MicroNote 050. While not a QML-V qualified part, its inherent radiation tolerance and hermetic DO-35 package make it suitable for use in LEO satellite subsystems where total ionizing dose up to 100 krad(Si) is expected.
What is the maximum Zener test current IZT for JAN1N4616D-1?
The maximum Zener test current IZT for JAN1N4616D-1 is 250 mA, as specified in Microsemi's T4-LDS-0245-2 datasheet. This current defines the operating point at which the 2.2 V Zener voltage and 1300 Ω dynamic impedance are measured, and the device supports continuous operation at this current within its 500 mW power limit at 25 °C ambient.
Does JAN1N4616D-1 have RoHS compliance?
No, JAN1N4616D-1 is not RoHS compliant. The "e3" RoHS designation applies only to commercial-grade versions (e.g., 1N4616D-1e3); the "JAN" prefix indicates military-grade qualification with tin-lead plating per MIL-STD-750, method 2026, and therefore falls outside RoHS exemption scope.
What is the thermal resistance junction-to-lead for JAN1N4616D-1?
The thermal resistance junction-to-lead (RθJL) for JAN1N4616D-1 is 250 °C/W when measured with 3/8 inch (10 mm) lead length from the body, per the Maximum Ratings table in the official datasheet. This value is critical for calculating junction temperature rise during sustained regulation and informs heatsinking decisions in high-power-density designs.
JAN1N4616D-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-204AH, DO-35, Axial
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 2.2 V
- Tolerance:
- ±1%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1300 Ohms
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/435
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AH (DO-35)
JAN1N4616D-1 FAQ
1.How can I place an order for JAN1N4616D-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4616D-1 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 JAN1N4616D-1 reliable?
The price and inventory of JAN1N4616D-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4616D-1 is usually 5 days.
3.What payment methods are accepted for JAN1N4616D-1?
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4.How is shipping managed for JAN1N4616D-1?
JAN1N4616D-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4616D-1 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 JAN1N4616D-1?
For technical support, including JAN1N4616D-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4616D-1 requirements.
6.How does Aetrix verify that JAN1N4616D-1 is sourced from the original manufacturer or authorized distributors?
All JAN1N4616D-1 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 JAN1N4616D-1 meets industry standards.
7.What is the process for return or replacement of JAN1N4616D-1?
All JAN1N4616D-1 units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4616D-1, 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 JAN1N4616D-1 part is unused and in its original packaging.
Return procedure for JAN1N4616D-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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