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Microchip Technology JAN1N6146AUS/TR
- Part No.:
- JAN1N6146AUS/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, C
- Datasheet:
-
JAN1N6146AUS/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,222
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Product details
Overview
JAN1N6146AUS/TR from Microsemi is a voidless hermetically sealed, bidirectional Transient Voltage Suppressor (TVS) qualified to MIL-PRF-19500/516 at JAN reliability level. It provides 11.4 V working standoff voltage (VWM), 14.25 V minimum breakdown voltage (V(BR)) at 75 mA, and clamps transients to 21.0 V at 71.4 A peak pulse current (IPP) for 10/1000 µs waveform - deployed in military avionics power bus protection.
For engineers reviewing the JAN1N6146AUS/TR datasheet, JAN1N6146AUS/TR pinout, JAN1N6146AUS/TR application, or JAN1N6146AUS/TR equivalent, key selection criteria include its 1500 W peak pulse power rating, -55°C to +175°C junction temperature range, Category 1 metallurgical bonds, RoHS-compliant tin/lead termination (e3), and SQ-MELF "C" package compatibility with automated SMT placement.
Technical Context
This TVS operates bidirectionally with no polarity marking and exhibits a 0.08 %/°C temperature coefficient of breakdown voltage (αV(BR)), enabling stable clamping across extreme thermal environments. Its hard-glass hermetic construction eliminates internal voids and supports radiation hardness per MicroNote 050.
The device delivers 1500 W peak pulse power (PPP) under 10/1000 µs waveform while maintaining 5.0 Ω thermal resistance from junction to end cap (RθJEC). It meets IEC61000-4-2 (ESD), IEC61000-4-4 (EFT), and select IEC61000-4-5 (lightning surge) immunity requirements without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11.4 V - maximum continuous reverse/forward voltage before conduction begins; sets system operating margin. |
| V(BR) min | 14.25 V @ 75 mA - guaranteed breakdown onset; defines threshold for transient clamping activation. |
| VC @ IPP | 21.0 V @ 71.4 A - clamped voltage during 10/1000 µs surge; determines protected circuit's maximum stress level. |
| PPP | 1500 W - peak impulse power handling; enables robust protection against high-energy transients. |
| TJ Range | -55°C to +175°C - operational junction temperature span; supports deployment in aerospace and engine bay environments. |
| RθJEC | 5.0 °C/W - thermal resistance from junction to end cap; informs heatsinking design for sustained power dissipation. |
| αV(BR) | 0.08 %/°C - temperature drift of breakdown voltage; ensures predictable clamping over wide ambient ranges. |
Pinout & Package
Package: SQ-MELF "C" (hermetically sealed voidless hard glass with tungsten slugs; square-end-cap terminals; weight ≈1100 mg). Termination: Tin/lead plate over copper (RoHS e3 option available for commercial grade only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient conduction path | No polarity marking; symmetric bidirectional clamping allows placement without orientation check. |
| End Cap (both ends) | Thermal and mechanical interface | Direct thermal path to PCB pad; requires controlled solder profile (260°C max for 10 s) and optional center adhesive spot (Ø2.29 mm). |
Key Features
| Feature | Design Value |
|---|---|
| Voidless hermetic seal | Eliminates moisture ingress and internal delamination risk; extends lifetime in humid, high-vibration military deployments. |
| Category 1 metallurgical bonds | Ensures bond integrity under thermal cycling and mechanical shock; required for JAN-level reliability qualification. |
| Triple-layer passivation | Protects glass-to-metal interfaces from corrosion and surface leakage; maintains low standby current (ID ≤20 µA @ VWM). |
| MIL-PRF-19500/516 qualification | Validated test compliance across electrical, environmental, and life testing per JAN level; eliminates need for customer requalification. |
Applications
| Aerospace Power Distribution | Military Vehicle ECUs |
|---|---|
Use Scenario: Protection of 28 V DC power buses in satellite payload modules against load dump and ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS clamp absorbing >1 kV transients without failure. Use Value: Prevents latch-up or burnout in downstream DC-DC converters by limiting bus voltage to ≤21.0 V during 71.4 A surges. |
Use Scenario: Input protection for engine control unit (ECU) CAN and sensor interfaces exposed to automotive ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff voltage (11.4 V) aligns with 12 V nominal systems; clamps fast transients before microcontroller I/O damage. Use Value: Meets IEC61000-4-4 EFT immunity up to 4 kV without additional filtering components. |
| Naval Radar Signal Chains | Tactical Radio Front Ends |
Use Scenario: Surge suppression on RF amplifier bias lines subjected to lightning-induced secondary effects per IEC61000-4-5 Level 3. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp with <1 ns response time (inherent to avalanche structure). Use Value: Limits transient energy to <1500 W peak without degrading RF line impedance or introducing insertion loss. |
Use Scenario: ESD protection for front-panel pushbuttons and antenna connectors in handheld radios operating in desert/humid environments. IC Role / Device Role / Timing Role: Non-sensitive to ESD per MIL-STD-750 Method 1020; withstands >15 kV contact discharge. Use Value: Eliminates field failures due to operator-handling ESD without requiring guard rings or layout spacing adjustments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6146AUS | Higher reliability screening (JANTXV level); tighter parametric limits on V(BR), VC, and IPP; extended temperature validation. | Required for flight-critical subsystems where burn-in and lot acceptance testing are mandated. | Select when full JANTXV qualification documentation and traceability are contractually required. |
| 1N6146AUS | Commercial-grade version; same electrical specs but no MIL-PRF-19500/516 qualification; RoHS e3 termination standard. | Suitable for non-military industrial controls where cost sensitivity outweighs qualification needs. | Choose for prototyping or commercial derivatives where JAN-level screening adds unnecessary cost and lead time. |
Compared with JANTXV1N6146AUS, the JAN1N6146AUS/TR offers verified JAN-level reliability at lower screening rigor, while the commercial 1N6146AUS sacrifices qualification for RoHS compliance and faster procurement - enabling tiered sourcing across program phases.
Availability
JAN1N6146AUS/TR is available at Aetrix Electronics and suitable for aerospace power distribution, military vehicle ECUs, and naval radar signal chains requiring stable component supply with full traceability and long-term obsolescence management.
Supply support for JAN1N6146AUS/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) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JAN1N6146AUS/TR belongs to Microsemi's military-qualified TVS family engineered specifically for survivability in mission-critical systems where single-point failure is unacceptable.
FAQ
What is the clamping voltage of JAN1N6146AUS/TR under a 10/1000 µs surge?
The JAN1N6146AUS/TR clamps to a maximum of 21.0 V when subjected to a 71.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuits during surge events. The clamping performance remains stable across its -55°C to +175°C operating junction temperature range, making JAN1N6146AUS/TR suitable for harsh-environment deployments where thermal swing affects protection margins.
Is JAN1N6146AUS/TR RoHS compliant?
JAN1N6146AUS/TR uses tin/lead termination and is not RoHS compliant; RoHS-compliant matte-tin plating (e3) is available only on commercial-grade variants like 1N6146AUS. The JAN1N6146AUS/TR adheres to MIL-PRF-19500/516 requirements, which permit Pb-based finishes for reliability-critical applications. Customers requiring RoHS compliance must evaluate the commercial 1N6146AUS or consult Aetrix for qualified alternatives meeting both environmental and military standards.
What package type does JAN1N6146AUS/TR use?
JAN1N6146AUS/TR is housed in the SQ-MELF "C" package - a voidless hermetically sealed hard-glass case with square-end-cap terminals and tungsten slugs. Its dimensions are BD: 4.65–5.13 mm, BL: 5.21–6.22 mm, and ECT: 0.48–0.71 mm. The package supports automated SMT placement and requires a center adhesive spot (Ø2.29 mm) if mounting uses supplemental bonding beyond solder reflow.
How does JAN1N6146AUS/TR differ from the non-A suffix variant 1N6146US?
The "A" suffix in JAN1N6146AUS/TR indicates tighter voltage tolerances: it guarantees minimum V(BR) = 14.25 V (vs. 5% lower for non-A), maximum VC = 21.0 V (vs. 5% higher), and minimum IPP = 71.4 A (vs. 5% lower). These tighter specifications ensure more predictable clamping behavior in safety-critical designs. The non-A variant (1N6146US) is obsolete and unsupported; JAN1N6146AUS/TR is the current qualified baseline.
What is the maximum steady-state power dissipation for JAN1N6146AUS/TR at 25°C ambient?
At TA = 25°C, the JAN1N6146AUS/TR has a steady-state power dissipation rating of 3.0 W. This value assumes adequate PCB thermal management to maintain junction temperature within limits. For operation above 150°C end-cap temperature, linear derating applies down to zero at 175°C. The 5.0 °C/W junction-to-end-cap thermal resistance (RθJEC) enables accurate thermal modeling when designing heatsink pads or airflow paths around the SQ-MELF body.
JAN1N6146AUS/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, C
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11.4V
- Voltage - Breakdown (Min):
- 14.25V
- Voltage - Clamping (Max) @ Ipp:
- 21V
- Current - Peak Pulse (10/1000µs):
- 71.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/516
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- C, SQ-MELF
JAN1N6146AUS/TR FAQ
1.How can I place an order for JAN1N6146AUS/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JAN1N6146AUS/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 JAN1N6146AUS/TR reliable?
The price and inventory of JAN1N6146AUS/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JAN1N6146AUS/TR is usually 5 days.
3.What payment methods are accepted for JAN1N6146AUS/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JAN1N6146AUS/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JAN1N6146AUS/TR?
JAN1N6146AUS/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JAN1N6146AUS/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 JAN1N6146AUS/TR?
For technical support, including JAN1N6146AUS/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JAN1N6146AUS/TR requirements.
6.How does Aetrix verify that JAN1N6146AUS/TR is sourced from the original manufacturer or authorized distributors?
All JAN1N6146AUS/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 JAN1N6146AUS/TR meets industry standards.
7.What is the process for return or replacement of JAN1N6146AUS/TR?
All JAN1N6146AUS/TR units undergo pre-shipment inspection (PSI). If there is an issue with JAN1N6146AUS/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 JAN1N6146AUS/TR part is unused and in its original packaging.
Return procedure for JAN1N6146AUS/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JAN1N6146AUS/TR Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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