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Microchip Technology JAN1N4460CUS/TR
- Part No.:
- JAN1N4460CUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- SQ-MELF, A
- Datasheet:
-
JAN1N4460CUS/TR.pdf
- Description:
- DIODE ZENER 6.2V 1.5W D5A
- Quantity:
- Payment:
- Shipping:
Inventory:4,746
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Product details
Overview
JAN1N4460CUS/TR from Microsemi is a military-qualified, hermetically sealed MELF surface-mount Zener diode rated for 1.5 W steady-state power dissipation, with a nominal Zener voltage of 6.2 V at 40 mA test current, ±2% tolerance (C suffix), and junction temperature range of –65 °C to +175 °C - used for precision voltage regulation in radiation-hardened avionics power conditioning.
For engineers reviewing the JAN1N4460CUS/TR datasheet, JAN1N4460CUS/TR pinout, JAN1N4460CUS/TR application, or JAN1N4460CUS/TR equivalent, key selection criteria include Zener voltage tolerance, thermal impedance profile, MIL-PRF-19500/406 qualification level, voidless glass package integrity, and surge current capability under transient load conditions.
Technical Context
This device operates as a two-terminal voltage reference in reverse-biased breakdown mode, delivering stable regulation across 1.0 mA to 3.72 mA continuous current (IZM) with dynamic impedance of 4 Ω at IZT = 40 mA. Its Category 1 internal metallurgical bond ensures mechanical robustness under thermal cycling and shock.
The D-5A MELF package enables high-reliability mounting on ceramic substrates, with thermal resistance junction-to-end cap of 20 °C/W and validated 8.3 ms non-repetitive surge current rating of 2.3 A - critical for transient suppression in regulated DC-DC converter feedback paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.2 V ±2% at 40 mA - defines precise regulation setpoint for feedback networks |
| Power Dissipation (PD) | 1.5 W @ TA = 25 °C - sets maximum continuous thermal load without derating |
| Dynamic Impedance (ZZT) | 4 Ω @ IZT = 40 mA - determines output voltage stability under load variation |
| Max Reverse Current (IR) | 10 µA @ VR = 1.0 V - confirms low leakage below knee voltage for standby efficiency |
| Junction Temperature Range | –65 °C to +175 °C - supports operation in extended-environment aerospace and defense systems |
| Surge Current (IZSM) | 2.3 A @ 8.3 ms square wave - validates transient immunity in power rail protection |
| Forward Voltage (VF) | 1.0 V @ 200 mA - defines forward conduction loss during fault or polarity reversal |
Pinout & Package
Package: D-5A MELF (Voidless hermetically sealed hard glass with tungsten slugs; cathode indicated by band; weight 193 mg).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connects to lower-potential node in reverse-bias regulator configuration |
| Cathode | Zener breakdown terminal | Marked with polarity band; connects to regulated output node in shunt configuration |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic glass seal | Prevents moisture ingress and long-term parameter drift in humid or vacuum environments |
| Category 1 metallurgical bond | Ensures mechanical integrity under MIL-STD-883 mechanical shock and vibration testing |
| MIL-PRF-19500/406 qualification | Validates reliability for JAN-level military applications including flight-critical subsystems |
| Triple-layer passivation | Reduces surface leakage and enhances stability under ionizing radiation exposure |
| Non-ESD-sensitive construction | Eliminates need for ESD handling protocols per MIL-STD-750 Method 1020 |
Applications
| Avionics Power Conditioning | Satellite DC-DC Converter Reference |
|---|---|
Use Scenario: Regulating feedback voltage in radiation-tolerant DC-DC converters powering FPGAs and memory in LEO satellites. IC Role / Device Role / Timing Role: Shunt Zener reference providing stable 6.2 V setpoint for error amplifier input. Use Value: ±2% tolerance and <1.5 W power dissipation enable tight loop control without thermal runaway in confined chassis. | Use Scenario: Stabilizing bias voltage for op-amps and comparators in spacecraft telemetry power supplies. IC Role / Device Role / Timing Role: Precision voltage clamp maintaining reference integrity across –55 °C to +125 °C operational range. Use Value: Hermetic D-5A package and Category 1 bond ensure zero parametric shift after 100 krad(Si) total ionizing dose exposure. |
| Tactical Radio Transceiver Biasing | Nuclear Instrumentation Front-End Protection |
Use Scenario: Providing regulated bias for RF power amplifier stages in handheld military radios subject to wide ambient swings. IC Role / Device Role / Timing Role: Zener shunt regulator compensating for battery voltage sag during transmit bursts. Use Value: 2.3 A surge rating absorbs 8.3 ms RF switching transients without degradation or latch-up. | Use Scenario: Clamping detector signal rails in neutron/gamma spectroscopy front-ends exposed to pulsed radiation fields. IC Role / Device Role / Timing Role: Overvoltage protector limiting input swing to ADC drivers during pulse-induced transients. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for external shielding or redundancy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N4460CUS | Same electrical specs; JANTXV qualification replaces JAN; tighter screening for burn-in and life test | Required for programs specifying JANTXV-level reliability documentation and traceability | Select when full JANTXV compliance (not just JAN) is mandated in procurement specs |
| 1N4460US | Identical Zener voltage, tolerance, and package; commercial-grade (no MIL-PRF-19500 qualification) | Acceptable for non-military prototypes or cost-sensitive industrial designs with relaxed reliability requirements | Choose only if MIL-spec qualification is not required and RoHS compliance is needed |
Compared with JANTXV1N4460CUS and 1N4460US, JAN1N4460CUS/TR provides the baseline JAN-level qualification with verified Category 1 bond integrity and voidless glass seal - making it the minimum-compliance option for legacy military hardware refreshes where JANTXV over-specification incurs unnecessary cost or lead time.
Availability
JAN1N4460CUS/TR is available at Aetrix Electronics and suitable for avionics power conditioning, satellite DC-DC converter reference, and tactical radio transceiver biasing requiring stable component supply across extended temperature and radiation environments.
Supply support for JAN1N4460CUS/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 JAN1N4460CUS/TR belongs to Microsemi's military-qualified Zener diode family designed specifically for voltage regulation in mission-critical systems where failure is not an option - emphasizing hermeticity, radiation tolerance, and MIL-PRF-19500 compliance.
FAQ
What is the Zener voltage tolerance for JAN1N4460CUS/TR?
The JAN1N4460CUS/TR has a Zener voltage tolerance of ±2%, denoted by the "C" suffix in its nomenclature. This means its nominal 6.2 V Zener voltage is guaranteed between 6.076 V and 6.324 V at the specified test current of 40 mA and case temperature of 25 °C - critical for precision feedback loops in regulated power supplies where tight voltage setpoints are required.
Is JAN1N4460CUS/TR qualified to MIL-PRF-19500/406?
Yes, JAN1N4460CUS/TR is qualified to MIL-PRF-19500/406 at the JAN reliability level. This qualification includes rigorous environmental, electrical, and mechanical testing per the specification, confirming its suitability for high-reliability military applications. The "JAN" prefix explicitly denotes this qualification level, distinguishing it from commercial or JANTXV variants of the same base part number.
What package type does JAN1N4460CUS/TR use?
JAN1N4460CUS/TR uses the D-5A MELF (Metal Electrode Leadless Face) package - a cylindrical, hermetically sealed voidless glass construction with tungsten slugs and tin/lead terminations. Its dimensions are defined in Microsemi document T4-LDS-0183-1, with body diameter 0.091–0.103 inches and length 0.168–0.200 inches, optimized for high-reliability surface-mount assembly on ceramic or polyimide substrates.
What is the maximum continuous Zener current for JAN1N4460CUS/TR?
The maximum continuous Zener current (IZM) for JAN1N4460CUS/TR is 3.72 mA at 25 °C case temperature, derived from its 1.5 W power rating and 6.2 V Zener voltage. This value decreases with rising temperature per the derating curve in Figure 2 of the datasheet, reaching zero at +175 °C junction temperature - a key constraint for thermal design in enclosed or high-ambient environments.
Does JAN1N4460CUS/TR have radiation hardness certification?
Yes, JAN1N4460CUS/TR is inherently radiation-hardened as documented in Microsemi MicroNote 050. Its voidless glass package, Category 1 metallurgical bond, and triple-layer passivation contribute to proven performance under total ionizing dose (TID) exposure up to 100 krad(Si), making it suitable for space and nuclear instrumentation applications where radiation-induced parameter shift must be minimized.
JAN1N4460CUS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SQ-MELF, A
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 6.2 V
- Tolerance:
- ±2%
- Power - Max:
- 1.5 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 10 µA @ 3.72 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 1 A
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/406
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D-5A
JAN1N4460CUS/TR FAQ
1.How can I place an order for JAN1N4460CUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N4460CUS/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 JAN1N4460CUS/TR reliable?
The price and inventory of JAN1N4460CUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N4460CUS/TR is usually 5 days.
3.What payment methods are accepted for JAN1N4460CUS/TR?
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4.How is shipping managed for JAN1N4460CUS/TR?
JAN1N4460CUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N4460CUS/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 JAN1N4460CUS/TR?
For technical support, including JAN1N4460CUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N4460CUS/TR requirements.
6.How does Aetrix verify that JAN1N4460CUS/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N4460CUS/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 JAN1N4460CUS/TR meets industry standards.
7.What is the process for return or replacement of JAN1N4460CUS/TR?
All JAN1N4460CUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N4460CUS/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 JAN1N4460CUS/TR part is unused and in its original packaging.
Return procedure for JAN1N4460CUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N4460CUS/TR Tags
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