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Microchip Technology JANS1N4615-1/TR
- Part No.:
- JANS1N4615-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-204AH, DO-35, Axial
- Datasheet:
-
JANS1N4615-1/TR.pdf
- Description:
- DIODE ZENER 2V 500MW DO204AH
- Quantity:
- Payment:
- Shipping:
Inventory:6,455
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Product details
Overview
JANS1N4615-1/TR from Microsemi is a 2.0 V, 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 ±5% Zener voltage tolerance at 250 mA test current, 1250 Ω dynamic impedance, and 1.0 µA reverse leakage at 2.0 V, operating across –65 °C to +175 °C.
For engineers reviewing the JANS1N4615-1/TR datasheet, JANS1N4615-1/TR pinout, JANS1N4615-1/TR application, or JANS1N4615-1/TR equivalent, key selection criteria include military-grade reliability qualification, low-noise regulation (1 µV/√Hz), thermal stability up to 175 °C, and axial-leaded DO-35 mechanical compatibility with legacy through-hole designs.
Technical Context
This device operates as a precision voltage reference in reverse-biased breakdown mode, with Zener voltage specified at IZT = 250 mA and characterized over full military temperature range. Its metallurgical bond construction ensures stable junction behavior under thermal cycling and radiation exposure.
The JANS1N4615-1/TR exhibits a negative temperature coefficient of –0.075 %/°C and maintains ≤1.0 µA reverse current at VR = 2.0 V, supporting low-power biasing and reference functions in analog signal chains and power supervision circuits where long-term parametric drift must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 2.0 V ±5% at 250 mA - defines stable regulation point for low-voltage reference circuits |
| Power Dissipation | 500 mW at 25 °C, derated linearly to zero at 175 °C - sets maximum continuous thermal load on PCB |
| Dynamic Impedance ZZT | 1250 Ω at 250 mA - determines output voltage variation under load current changes |
| Reverse Leakage IR | ≤1.0 µA at VR = 2.0 V - ensures minimal quiescent current in standby or sensing paths |
| Noise Density ND | 1 µV/√Hz - enables use in low-noise analog references without added filtering |
| Temp Coefficient αVZ | –0.075 %/°C - quantifies voltage drift with ambient temperature shifts |
| Junction Temp Range | –65 °C to +175 °C - supports operation in extreme environmental conditions |
Pinout & Package
DO-35 (DO-204AH) hermetically sealed axial-leaded glass package with cathode indicated by 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 | Forward conduction terminal | Connected to lower-potential node during Zener regulation; used for forward-bias protection or clamping |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; reverse-biased to maintain 2.0 V reference across load |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/435 JANS qualification | Validated for spaceflight, avionics, and nuclear-hardened systems requiring highest reliability screening |
| Metallurgical bond construction | Eliminates interfacial delamination risk under thermal shock and vibration stress |
| Low noise density (1 µV/√Hz) | Reduces need for external filtering in precision analog references and sensor excitation |
| Hermetic glass DO-35 package | Prevents moisture ingress and parameter shift over decades in sealed enclosures |
| Radiation hardness | Inherently tolerant to total ionizing dose (TID) per Microsemi MicroNote 050 |
Applications
| Avionics Power Monitoring | Satellite Sensor Biasing |
|---|---|
Use Scenario: Monitoring regulated 28 V bus voltage in flight control electronics using resistive divider into ADC input. IC Role / Device Role / Timing Role: Precision 2.0 V reference for ADC voltage scaling and fault threshold detection. Use Value: Stable ±5% VZ and –0.075 %/°C TC ensure <±10 mV error over –55 °C to +125 °C operational range. | Use Scenario: Providing stable bias voltage to radiation-tolerant CMOS image sensor front-end amplifiers. IC Role / Device Role / Timing Role: Low-noise, radiation-hardened Zener reference replacing battery-based solutions. Use Value: 1 µV/√Hz noise density avoids signal-to-noise degradation in low-light imaging channels. |
| Nuclear Instrumentation | Tactical Radio RF Stage Bias |
Use Scenario: Calibrating gamma-ray spectrometer pulse-height analyzers in reactor monitoring systems. IC Role / Device Role / Timing Role: Primary voltage reference for DAC-controlled gain calibration circuitry. Use Value: JANS qualification and 175 °C max junction temperature support operation inside shielded hot-cell enclosures. | Use Scenario: Setting gate bias for GaAs FETs in S-band power amplifier stages of manpack radios. IC Role / Device Role / Timing Role: Temperature-stable DC bias source compensating for FET threshold drift. Use Value: Negative TC matches typical FET VGS drift, reducing net gain variation across military temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4615US-1 | Same electrical specs but in DO-213AA surface-mount package; no axial leads | Requires rework of PCB layout for SMT assembly; unsuitable for through-hole prototyping | Select when board space is constrained and automated placement is available |
| JANTXV1N4615-1 | Identical DO-35 package and electrical parameters; qualified to JANTXV (not JANS) per MIL-PRF-19500/435 | Lacks JANS-level screening for radiation hardness and extended life testing; not approved for spaceflight | Select for high-reliability ground systems where full JANS qualification is not mandated |
Compared with JANS1N4615-1/TR, the 1N4615US-1 offers identical regulation performance in a smaller footprint but requires SMT infrastructure, while JANTXV1N4615-1 reduces cost and lead time but omits radiation tolerance and extended burn-in required for orbital missions.
Availability
JANS1N4615-1/TR is available at Aetrix Electronics and suitable for avionics power monitoring, satellite sensor biasing, and nuclear instrumentation requiring stable component supply with guaranteed traceability and long-term obsolescence management.
Supply support for JANS1N4615-1/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 1N4614–1N4627-1 series was designed specifically for military and space applications demanding MIL-PRF-19500/435 qualification, hermetic sealing, and stable Zener regulation under extreme thermal and radiation environments.
FAQ
What is the Zener voltage tolerance of JANS1N4615-1/TR?
JANS1N4615-1/TR has a nominal Zener voltage of 2.0 V with a ±5% tolerance, as defined in the Electrical Characteristics table at IZT = 250 mA and 25 °C. This tolerance remains valid across the full military temperature range due to JANS-level screening and metallurgical bond construction, ensuring consistent performance in mission-critical systems.
Is JANS1N4615-1/TR RoHS compliant?
No, JANS1N4615-1/TR is not RoHS compliant. Per the nomenclature guide and datasheet notes, RoHS compliance (e3 suffix) is available only on commercial-grade versions. The JANS variant uses traditional tin-lead plating to meet MIL-STD-750 solderability requirements and ensure long-term reliability in harsh environments.
What is the maximum operating temperature for JANS1N4615-1/TR?
JANS1N4615-1/TR has a junction and storage temperature range of –65 °C to +175 °C. Its rated 500 mW power dissipation linearly derates to zero at 175 °C, enabling reliable operation in engine bays, satellite payload bays, and nuclear containment zones where ambient temperatures exceed commercial limits.
Does JANS1N4615-1/TR require heatsinking in standard PCB layouts?
No additional heatsinking is required for JANS1N4615-1/TR at ≤500 mW dissipation within its derating curve. With RθJA = 300 °C/W on FR4 (1 oz Cu, 4 mm² pads), self-heating remains within specification at 25 °C ambient. At elevated ambient temperatures, layout must follow the linear derating profile shown in Figure 2 of the datasheet to avoid exceeding 175 °C junction limit.
How is polarity marked on JANS1N4615-1/TR?
JANS1N4615-1/TR uses a cathode band to indicate polarity: the banded end is the cathode and must be connected to the higher-potential node during Zener regulation. This marking complies with JEDEC DO-35 standards and is visible on the glass body; the anode is the unmarked lead. Polarity reversal will cause forward conduction at ~1.1 V instead of 2.0 V regulation.
JANS1N4615-1/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):
- 2 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 1.25 Ohms
- Current - Reverse Leakage @ Vr:
- 2.5 µA @ 1 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)
JANS1N4615-1/TR FAQ
1.How can I place an order for JANS1N4615-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N4615-1/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 JANS1N4615-1/TR reliable?
The price and inventory of JANS1N4615-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N4615-1/TR is usually 5 days.
3.What payment methods are accepted for JANS1N4615-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N4615-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N4615-1/TR?
JANS1N4615-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N4615-1/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 JANS1N4615-1/TR?
For technical support, including JANS1N4615-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N4615-1/TR requirements.
6.How does Aetrix verify that JANS1N4615-1/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N4615-1/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 JANS1N4615-1/TR meets industry standards.
7.What is the process for return or replacement of JANS1N4615-1/TR?
All JANS1N4615-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N4615-1/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 JANS1N4615-1/TR part is unused and in its original packaging.
Return procedure for JANS1N4615-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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