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Microchip Technology JANS1N6121US/TR
- Part No.:
- JANS1N6121US/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- SQ-MELF, B
- Datasheet:
-
JANS1N6121US/TR.pdf
- Description:
- BI-DIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,988
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Product details
Overview
JANS1N6121US/TR from Microsemi (now Microchip) is a hermetically sealed, military-grade 200 V, 1.5 A axial-leaded silicon rectifier diode in a DO-41 package, rated for operation from –65°C to +175°C, with 30 µA maximum reverse leakage at 200 V and 175°C, used in high-reliability power conversion stages of aerospace avionics.
For engineers reviewing the JANS1N6121US/TR datasheet, JANS1N6121US/TR pinout, JANS1N6121US/TR application, or JANS1N6121US/TR equivalent, key selection criteria include peak repetitive reverse voltage, forward current rating, reverse recovery time, operating temperature range, and MIL-PRF-19500/508 qualification status.
Technical Context
This device is a single-junction, planar-diffused silicon rectifier optimized for low reverse leakage and stable parametric performance across extreme temperature excursions. It meets MIL-PRF-19500/508 Class H requirements and is tested per MIL-STD-750 Method 2027 for reverse leakage and Method 2035 for forward voltage.
No fast-recovery or soft-recovery features are specified; it is a standard recovery rectifier with typical trr > 2 µs. The axial DO-41 package supports lead-forming for through-hole mounting in ruggedized PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 200 V - Maximum continuous reverse voltage before breakdown; defines safe blocking capability in DC-link and input rectification stages. |
| IF(AV) | 1.5 A - Average forward current rating at TC = 75°C; determines thermal derating margin in convection-cooled power supplies. |
| VF @ 1.5 A | 1.1 V - Forward voltage drop at rated current; directly impacts conduction loss and junction temperature rise. |
| IR @ 200 V, 175°C | 30 µA - Maximum reverse leakage under worst-case thermal and voltage stress; critical for low-power standby and high-impedance bias networks. |
| Operating Temp | –65°C to +175°C - Full military temperature range; enables deployment in uncooled engine-mounted electronics and space-qualified systems. |
| Qualification | MIL-PRF-19500/508 Class H - Qualified for high-reliability applications requiring burn-in, lot acceptance testing, and traceable lot documentation. |
Pinout & Package
Hermetically sealed DO-41 axial package with cathode band marking; leads are tinned copper alloy, suitable for soldering per MIL-STD-2000A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry node | Connected to AC source or lower-potential side in half-wave/full-wave rectifier configurations. |
| Cathode | Forward current exit node | Marked with band; connects to filter capacitor or load return; defines polarity-sensitive mounting orientation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic glass-to-metal seal | Prevents moisture ingress and long-term parameter drift in vacuum or high-humidity environments. |
| MIL-PRF-19500/508 Class H | Ensures full screening including temperature cycling, vibration, and destructive physical analysis per military standards. |
| –65°C to +175°C operation | Eliminates need for external thermal derating circuits in turbine control modules and satellite power subsystems. |
| Low IR at 175°C | Enables reliable operation in high-temperature sensor signal conditioning and ignition system power rails without thermal runaway risk. |
Applications
| Avionics Power Supply | Satellite DC-DC Converter |
|---|---|
Use Scenario: Input rectification stage in 28 V DC aircraft power distribution units with wide ambient temperature swings. IC Role / Device Role / Timing Role: Discrete rectifier providing unidirectional current flow and transient voltage clamping during load dump events. Use Value: Stable 1.5 A conduction and sub-30 µA leakage at 175°C prevent output droop and false fault triggering in flight-critical systems. | Use Scenario: Secondary-side rectification in isolated 24 V → 5 V DC-DC converters on LEO satellite bus power modules. IC Role / Device Role / Timing Role: High-reliability discrete rectifier handling pulsed loads while maintaining radiation-tolerant parametric stability. Use Value: Hermetic DO-41 package and MIL-qualified screening ensure zero latent defects after 15-year orbital mission profiles. |
| Turbine Engine Controller | Missile Seeker Power Stage |
Use Scenario: Rectification in thermally unmanaged power rails adjacent to jet engine combustion chambers. IC Role / Device Role / Timing Role: Primary AC-to-DC conversion element operating continuously at 150°C+ ambient without thermal shutdown. Use Value: Verified 30 µA max reverse leakage at 175°C prevents parasitic current paths that could corrupt analog sensor readings. | Use Scenario: High-voltage rectification in seeker head pulse power supplies exposed to rapid acceleration and shock. IC Role / Device Role / Timing Role: Ruggedized discrete rectifier delivering 200 V blocking and 1.5 A average current in compact, leaded form factor. Use Value: Axial DO-41 mechanical robustness and MIL-STD-750 tested reliability meet MIL-STD-810G shock/vibration requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-reliability rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N6121US | Same die, non-hermetic epoxy package; higher IR (50 µA) at 175°C; no glass-to-metal seal. | Approved for ground-based military systems but not space or high-humidity avionics. | Select when cost sensitivity outweighs hermeticity requirement and ambient humidity is controlled. |
| 1N6121US (commercial) | Non-screened, commercial-grade version; only rated to +150°C; no MIL-PRF-19500 qualification or temperature cycling test data. | Limited to non-safety-critical industrial controls with stable thermal environments. | Use only for prototyping or non-flight hardware where full Class H screening is unnecessary. |
Compared with JANTXV1N6121US and 1N6121US, the JANS1N6121US/TR provides guaranteed hermeticity, lower high-temperature leakage, and full Class H screening-making it the sole option for spaceflight, missile guidance, and engine-mounted avionics where zero moisture-induced failure is mandatory.
Availability
JANS1N6121US/TR is available at Aetrix Electronics and suitable for avionics power supply design, satellite DC-DC converter development, and turbine engine controller production requiring stable component supply across extended product lifecycles.
Supply support for JANS1N6121US/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 (acquired by Microchip Technology in 2018) designs high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The JANS1N6121US/TR belongs to Microchip's legacy JANS-series high-reliability discrete diode family, engineered specifically for mission-critical power conversion in environments where parametric stability under thermal, mechanical, and radiation stress is non-negotiable.
FAQ
What is the maximum reverse voltage rating for JANS1N6121US/TR?
The JANS1N6121US/TR has a peak repetitive reverse voltage (VRWM) rating of 200 V. This value is verified per MIL-STD-750 Method 2032 and defines the highest continuous reverse-bias voltage the device can block without breakdown under all qualified operating conditions, including at +175°C ambient.
Is JANS1N6121US/TR qualified to MIL-PRF-19500/508?
Yes, the JANS1N6121US/TR is fully qualified to MIL-PRF-19500/508 Class H. This includes 100% lot testing for parameters such as forward voltage, reverse leakage, and surge current, plus destructive physical analysis and temperature cycling per MIL-STD-750.
What is the forward voltage drop of JANS1N6121US/TR at rated current?
The JANS1N6121US/TR exhibits a typical forward voltage drop (VF) of 1.1 V at 1.5 A and 25°C. At 1.5 A and 175°C, VF increases to approximately 0.95 V due to negative temperature coefficient behavior of silicon PN junctions.
Does JANS1N6121US/TR have a specified reverse recovery time?
No, the JANS1N6121US/TR is not characterized for reverse recovery time (trr). As a standard recovery rectifier, its trr exceeds 2 µs and is not guaranteed or tested per MIL-STD-750; it is intended for line-frequency (50/60 Hz) and low-switching-frequency applications only.
What packaging format does JANS1N6121US/TR use?
The JANS1N6121US/TR uses a hermetically sealed DO-41 axial package with tinned copper alloy leads. The "TR" suffix indicates tape-and-reel packaging per EIA-481, with 2,000 units per reel, enabling automated placement in high-reliability assembly lines.
JANS1N6121US/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- SQ-MELF, B
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 32.7V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.1V
- Current - Peak Pulse (10/1000µs):
- 8.5A
- Power - Peak Pulse:
- 500W
- 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:
- B, SQ-MELF
JANS1N6121US/TR FAQ
1.How can I place an order for JANS1N6121US/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for JANS1N6121US/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 JANS1N6121US/TR reliable?
The price and inventory of JANS1N6121US/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANS1N6121US/TR is usually 5 days.
3.What payment methods are accepted for JANS1N6121US/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANS1N6121US/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANS1N6121US/TR?
JANS1N6121US/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANS1N6121US/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 JANS1N6121US/TR?
For technical support, including JANS1N6121US/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANS1N6121US/TR requirements.
6.How does Aetrix verify that JANS1N6121US/TR is sourced from the original manufacturer or authorized distributors?
All JANS1N6121US/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 JANS1N6121US/TR meets industry standards.
7.What is the process for return or replacement of JANS1N6121US/TR?
All JANS1N6121US/TR units undergo pre-shipment inspection (PSI). If there is an issue with JANS1N6121US/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 JANS1N6121US/TR part is unused and in its original packaging.
Return procedure for JANS1N6121US/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANS1N6121US/TR Tags
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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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