My Inquiry
My Account
Microchip Technology JANTXV1N5649A
- Part No.:
- JANTXV1N5649A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTXV1N5649A.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:2,408
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
JANTXV1N5649A from Microchip (formerly Microsemi) is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal-glass package, designed for high-reliability military and aerospace surge protection. It features 42.3 V minimum breakdown voltage (VBR), 38.1 V rated standoff voltage (VWM), 67.8 V maximum clamping voltage (VC) at 22.2 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform - deployed in avionics power rails and I/O interfaces subject to IEC61000-4-2/4-4/4-5 transients.
For engineers reviewing the JANTXV1N5649A datasheet, JANTXV1N5649A pinout, JANTXV1N5649A application, or JANTXV1N5649A equivalent, key selection criteria include its MIL-PRF-19500/500 JANTXV qualification, hermetic DO-13 package, sub-100 ps response time, -55°C to +175°C operating range, and secondary lightning protection capability with 42 Ω source impedance up to Class 4 per IEC61000-4-5.
Technical Context
The JANTXV1N5649A operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds VWM (38.1 V), clamping transient energy within <100 ps. Its thermal resistance is 50°C/W junction-to-lead at 10 mm lead length, enabling robust surge handling without thermal runaway under repetitive low-duty-cycle pulses.
It complies with MIL-PRF-19500/500 Class V requirements, including radiation hardness per MicroNote 050, and is rated for 200 A forward surge current (8.3 ms half-sine) - confirming suitability for high-energy inductive switching environments such as aircraft generator control units and flight control actuator drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 38.1 V - Maximum continuous reverse operating voltage before conduction begins; sets minimum system rail margin for reliable standby operation. |
| VBR @ IBR | 42.3–44.7 V @ 1 mA - Breakdown onset threshold; ensures predictable turn-on during fast transients without premature leakage. |
| VC @ IPP | 67.8 V @ 22.2 A - Clamped voltage during 10/1000 µs surge; defines worst-case overvoltage seen by protected downstream ICs. |
| PPP | 1500 W - Peak pulse power handling capacity; supports single-event surges up to 22.2 A without failure. |
| TOP/TSTG | -55°C to +175°C - Extended temperature range enables deployment in engine-mounted avionics and power conversion modules. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode-connected case; provides EMI shielding and moisture resistance for harsh environments. |
| Response Time | <100 ps - Enables effective suppression of ESD (IEC61000-4-2) and EFT (IEC61000-4-4) events before sensitive circuitry is damaged. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to the metal case and marked with diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point during reverse-biased clamping | Connected to protected line; carries full surge current into device during overvoltage event. |
| Cathode (Lead 1 / Case) | Clamping reference and return path | Internally bonded to metal case; must be tied to system ground plane with low-inductance connection for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 metal-glass construction | Eliminates moisture ingress and long-term parameter drift; certified for 20+ year field life in sealed avionics enclosures. |
| JANTXV qualification per MIL-PRF-19500/500 | Guarantees screening for burn-in, temperature cycling, and radiation hardness - required for DoD and FAA-certified systems. |
| 1500 W peak pulse power (10/1000 µs) | Supports repeated surge events in engine control units without degradation; validated at 0.01% duty cycle. |
| Sub-100 ps response time | Clamps ESD events before logic-level transceivers or ADC inputs experience latch-up or gate oxide damage. |
| Inherent radiation hardness | Meets total ionizing dose (TID) requirements per MicroNote 050 - suitable for satellite power conditioning and UAV flight controllers. |
Applications
| Aircraft Power Distribution Units | Avionics Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 28 V DC bus feeders in airborne electrical systems against load dump and inductive kickback from relay coils and motor controllers. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between bus rail and ground, absorbing >1 kV transients within 100 ps. Use Value: Prevents catastrophic failure of upstream DC-DC converters and downstream solid-state relays during rapid bus disconnection events. |
Use Scenario: Shielding analog sensor inputs (e.g., pressure, temperature) in flight control computers from coupled RF and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-mode protector on signal lines, conducting only during transients exceeding 38.1 V while maintaining <5 µA leakage at nominal bias. Use Value: Preserves signal integrity and avoids false triggering in closed-loop control loops during ground-air electromagnetic interference events. |
| Military Vehicle Engine Control Modules | Satellite Power Conditioning Circuits |
|
Use Scenario: Safeguarding microcontroller I/O and CAN transceiver power rails in tracked vehicle ECUs exposed to 12 V/24 V battery transients and EMP-like pulses. IC Role / Device Role / Timing Role: Primary surge arrestor on input filter stage, clamping to 67.8 V to keep downstream LDOs and logic within safe SOA. Use Value: Enables compliance with MIL-STD-1275B Class III surge requirements without adding bulkier MOV-based solutions. |
Use Scenario: Protecting DC-DC converter inputs in LEO satellite power management units subjected to solar array arcing and single-event effects. IC Role / Device Role / Timing Role: Radiation-hardened transient suppressor mounted directly at converter input terminals, leveraging hermetic seal for vacuum compatibility. Use Value: Maintains system uptime by preventing latch-up or parametric shift in PMICs during orbital radiation bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5648A | VWM = 34.8 V, VC = 56.4 V @ 26.5 A - lower clamping voltage but reduced standoff margin. | Better for 24 V systems with tighter voltage headroom; less suitable for 28 V nominal rails where 38.1 V VWM prevents false triggering. | Select JANTXV1N5648A only when system max operating voltage is ≤32 V and lower clamping priority outweighs standoff margin. |
| JANTXV1N5650A | VWM = 41.3 V, VC = 73.5 V @ 20.4 A - higher standoff but elevated clamping voltage increases stress on downstream devices. | Appropriate for 36–40 V avionics buses (e.g., auxiliary power units); requires verification that protected ICs tolerate 73.5 V transient overshoot. | Choose JANTXV1N5650A when system nominal voltage exceeds 38 V and clamping margin allows 73.5 V excursion without violating downstream SOA limits. |
Compared with JANTXV1N5649A, JANTXV1N5648A offers lower clamping at the cost of reduced standoff margin, while JANTXV1N5650A extends standoff capability at the expense of higher clamping voltage - making JANTXV1N5649A the optimal balance for standard 28 V aircraft power distribution.
Availability
JANTXV1N5649A is available at Aetrix Electronics and suitable for airborne avionics, military vehicle electronics, and satellite power systems requiring stable component supply across extended product lifecycles and rigorous qualification traceability.
Supply support for JANTXV1N5649A 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
Microchip Technology acquired Microsemi in 2018 and maintains legacy military-grade discrete product lines including high-reliability TVS diodes, ensuring long-term support and qualification integrity.
The JANTXV1N5649A belongs to Microchip's legacy MIL-PRF-19500/500 qualified TVS family, engineered specifically for mission-critical surge protection in defense, aerospace, and space applications where hermeticity, radiation tolerance, and extended temperature operation are mandatory.
FAQ
What is the maximum clamping voltage of the JANTXV1N5649A under standard test conditions?
The JANTXV1N5649A has a maximum clamping voltage (VC) of 67.8 V when subjected to its rated 22.2 A peak pulse current (IPP) using the 10/1000 µs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during a surge event. The JANTXV1N5649A maintains this clamping performance across its full -55°C to +175°C operating range, with minimal derating required due to its low thermal resistance.
Does the JANTXV1N5649A meet MIL-PRF-19500/500 requirements?
Yes, the JANTXV1N5649A is fully qualified to MIL-PRF-19500/500 Class V standards, including screening for burn-in, temperature cycling, mechanical shock, and radiation hardness per MicroNote 050. The "JANTXV" prefix explicitly denotes compliance with these military specifications, and the device is listed in the Qualified Products List (QPL) for transient suppressors. The JANTXV1N5649A retains full traceability to original Microsemi manufacturing and test records.
What is the standoff voltage rating for the JANTXV1N5649A, and how does it relate to system design?
The JANTXV1N5649A has a rated standoff voltage (VWM) of 38.1 V, meaning it remains non-conductive up to this reverse voltage level at 25°C. This value is selected to exceed the maximum continuous operating voltage of 28 V aircraft systems (including ripple and tolerance), ensuring no leakage or false triggering during normal operation. Designers must verify that system peak voltage never exceeds 38.1 V to maintain reliable JANTXV1N5649A functionality without premature conduction.
Can the JANTXV1N5649A be used for IEC61000-4-5 secondary lightning protection?
Yes, the JANTXV1N5649A is validated for secondary lightning protection per IEC61000-4-5 with 42 Ω source impedance up to Class 4, supporting surge levels up to 4 kV. Its 1500 W peak pulse power rating and sub-100 ps response time enable effective clamping of induced surges from nearby lightning strikes in airborne and ground vehicle platforms. The JANTXV1N5649A is commonly deployed in conjunction with series impedance (e.g., 10 Ω resistors) to shape the surge waveform before reaching protected ICs.
What is the thermal resistance specification for the JANTXV1N5649A, and why does it matter?
The JANTXV1N5649A has a junction-to-lead thermal resistance (RθJL) of 50°C/W when measured at 10 mm (0.375 inch) from the case body. This low thermal resistance enables efficient heat transfer from the silicon die to the PCB copper or chassis during high-energy transients, preventing thermal runaway during repetitive surge events. It directly supports the device's 1500 W peak pulse rating and ensures reliability in high-temperature environments like engine bays or sealed avionics enclosures where ambient temperatures reach +125°C.
JANTXV1N5649A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-202AA, DO-13, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 23.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- Military
- Qualification:
- MIL-PRF-19500/500
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-13 (DO-202AA)
JANTXV1N5649A FAQ
1.How can I place an order for JANTXV1N5649A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N5649A 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 JANTXV1N5649A reliable?
The price and inventory of JANTXV1N5649A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N5649A is usually 5 days.
3.What payment methods are accepted for JANTXV1N5649A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N5649A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N5649A?
JANTXV1N5649A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N5649A 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 JANTXV1N5649A?
For technical support, including JANTXV1N5649A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N5649A requirements.
6.How does Aetrix verify that JANTXV1N5649A is sourced from the original manufacturer or authorized distributors?
All JANTXV1N5649A 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 JANTXV1N5649A meets industry standards.
7.What is the process for return or replacement of JANTXV1N5649A?
All JANTXV1N5649A units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N5649A, 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 JANTXV1N5649A part is unused and in its original packaging.
Return procedure for JANTXV1N5649A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N5649A Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
