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Microchip Technology JANTX1N5648A
- Part No.:
- JANTX1N5648A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTX1N5648A.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:7,291
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Product details
Overview
JANTX1N5648A from Microchip Technology (formerly Microsemi) is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in a DO-13 metal package, designed for high-reliability aerospace and military applications. It features a 34.8 V rated standoff voltage (VWM), 45.2 V maximum clamping voltage (VC) at 25.3 A peak pulse current (IPP), and 1500 W peak pulse power rating at 10/1000 µs waveform - used primarily to protect avionics power rails and signal lines from secondary lightning surges per IEC61000-4-5 Class 4 (42 Ω source).
For engineers reviewing the JANTX1N5648A datasheet, JANTX1N5648A pinout, JANTX1N5648A application, or JANTX1N5648A equivalent, this part delivers radiation-hardened, fast-response (<100 ps) overvoltage protection with MIL-PRF-19500/500 JANTX qualification, hermetic DO-13 packaging, and guaranteed performance across –55°C to +175°C operating temperature.
Technical Context
The JANTX1N5648A operates as a unidirectional avalanche diode, entering controlled breakdown above its 38.7–40.9 V breakdown voltage (V(BR)) at 1 mA test current. Its low thermal resistance (50°C/W junction-to-lead) enables robust surge handling without thermal runaway under repetitive transients.
It complies with IEC61000-4-2 (ESD), -4-4 (EFT), and -4-5 (lightning surge) standards, specifically qualified for Class 4 secondary lightning protection with 42 Ω source impedance. The cathode-is-case polarity and tin-lead plating ensure reliable solderability and grounding integrity in high-vibration environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff Voltage) | 34.8 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; sets minimum system operating voltage margin. |
| V(BR) Min/Max @ I(BR) | 38.7 V / 40.9 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPP | 45.2 V @ 25.3 A - Clamped voltage during 10/1000 µs surge; defines worst-case rail overshoot seen by downstream ICs. |
| PPP | 1500 W - Peak pulse power capability at TL = 25°C; supports single-event surge immunity up to IEC61000-4-5 Level 4. |
| Response Time | <100 ps - Enables effective suppression of ESD (IEC61000-4-2 ±8 kV contact) before sensitive circuitry latches or fails. |
| Operating Temp Range | –55°C to +175°C - Validated for extended-range operation in engine-mounted avionics and space-grade electronics. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with cathode connected to case; provides EMI shielding and mechanical ruggedness. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically bonded to case and marked with diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point | Connected to protected line; carries full surge current into avalanche junction during overvoltage events. |
| Cathode (Lead 1 / Case) | Reference and return path | Internally tied to metal case; must be soldered to low-impedance ground plane for optimal clamping and EMI control. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/500 JANTX qualification | Guaranteed screening, lot traceability, and environmental testing per military specification - required for DoD and FAA-certified systems. |
| Hermetic DO-13 metal package | Eliminates moisture ingress and long-term parameter drift; maintains stable V(BR) and VC over 20+ year service life in humid or corrosive environments. |
| 1500 W peak pulse power (10/1000 µs) | Supports repeated surge events without degradation - validated for ≥1000 pulses at 0.01% duty cycle per MIL-STD-750 Method 2019. |
| Radiation hardness | Inherently radiation-tolerant per MicroNote 050 - suitable for low-earth orbit (LEO) satellite power conditioning and nuclear instrumentation. |
| Class 4 IEC61000-4-5 compliance (42 Ω) | Validated for 4 kV surge immunity in aircraft electrical subsystems - meets RTCA DO-160 Section 22 Level 4 requirements. |
Applications
| Avionics Power Bus Protection | Ground Vehicle Control Module Input |
|---|---|
Use Scenario: Protecting 28 V DC main bus in commercial aircraft flight control computers from induced lightning transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between bus and chassis ground to limit voltage excursion during IEC61000-4-5 Class 4 (42 Ω) surges. Use Value: Limits bus overshoot to ≤45.2 V, preventing latch-up in downstream PMICs and FPGAs while maintaining MIL-STD-704A compliance. |
Use Scenario: Safeguarding CAN transceiver inputs in military tactical vehicle ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Front-end transient suppressor on 12 V supply rail feeding ISO 11898-compliant CAN PHY. Use Value: Clamps 100 V/50 ms load dump spikes to <45.2 V within 100 ps, preserving CAN signal integrity and avoiding bus-off recovery delays. |
| Satellite Power Converter Input | Industrial PLC Analog Input Protection |
Use Scenario: Shielding DC-DC converter primary side in LEO microsatellites from electrostatic discharge during launch and orbital operations. IC Role / Device Role / Timing Role: Radiation-hardened unidirectional TVS on 28 V input rail upstream of buck controller ICs. Use Value: Withstands >10 krad(Si) TID and single-event burnout (SEB) up to 30 V bias - verified per MicroNote 050 and MIL-STD-883 Method 1019. |
Use Scenario: Guarding 4–20 mA analog input channels in oil & gas refinery PLCs against field wiring-induced surges. IC Role / Device Role / Timing Role: Series-connected TVS on sensor loop return path to shunt induced common-mode transients. Use Value: Maintains ≤5 µA standby leakage at 24 V nominal, ensuring <0.025% full-scale error impact on precision current measurement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| JANTXV1N5648A | Higher screening level (JANTXV vs JANTX); tighter V(BR) tolerance (±5% vs ±10%), lower αV(BR) (0.101%/°C vs 0.101%/°C - identical), same VC/IPP. | Required for spaceflight-critical subsystems where parametric stability over temperature and radiation is mandatory. | Select JANTXV1N5648A when mission assurance level exceeds MIL-PRF-19500/500 Class H screening requirements. |
| 1N5648A (commercial) | No military qualification; not screened to MIL-PRF-19500; same electrical specs but no radiation hardness or extended temp validation. | Suitable only for non-mission-critical industrial prototypes or ground-test fixtures. | Choose 1N5648A only for cost-sensitive development boards where JANTX-level reliability is not mandated. |
Compared with JANTX1N5648A, JANTXV1N5648A offers enhanced parametric consistency for space-grade designs, while 1N5648A provides identical electrical behavior without military screening - enabling staged qualification paths from prototype to flight hardware.
Availability
JANTX1N5648A is available at Aetrix Electronics and suitable for avionics power protection, military vehicle electronics, satellite power systems, and industrial PLC analog input protection requiring stable component supply across extended temperature and radiation environments.
Supply support for JANTX1N5648A 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 full product continuity, military qualification, and technical support for legacy Microsemi TVS devices including the JANTX1N5648A.
The JANTX1N5648A belongs to Microchip's high-reliability discrete TVS portfolio, engineered specifically for defense, aerospace, and critical infrastructure applications demanding hermetic sealing, radiation tolerance, and MIL-PRF-19500 compliance.
FAQ
What is the maximum clamping voltage of the JANTX1N5648A during a 10/1000 µs surge?
The JANTX1N5648A has a maximum clamping voltage (VC) of 45.2 V when subjected to its rated peak pulse current of 25.3 A under the 10/1000 µs waveform. This value is measured at 25°C lead temperature and defines the upper voltage limit imposed on protected circuits during standardized surge events per IEC61000-4-5.
Is the JANTX1N5648A suitable for bidirectional transient suppression?
No, the JANTX1N5648A is a unidirectional TVS diode - it conducts only in reverse breakdown and blocks forward current beyond its ~1 V forward voltage drop. For bidirectional protection in the same DO-13 package, Microchip specifies the 1N6036–1N6072A series, which are explicitly designed for symmetrical AC-line or data-line surge suppression.
Does the JANTX1N5648A require derating at elevated temperatures?
Yes, the JANTX1N5648A must be derated above 25°C lead temperature. Its 1500 W peak pulse power rating decreases linearly to zero at 175°C, following the derating curve in Figure 4 of T4-LDS-0096 Rev. 3. At 125°C lead temperature, maximum PPP drops to approximately 750 W, and steady-state power dissipation is limited to 1 W.
How is polarity identified on the JANTX1N5648A DO-13 package?
The JANTX1N5648A uses cathode-to-case polarity: the metal case and Lead 1 (shorter lead, per standard DO-13 orientation) are internally connected to the cathode. Polarity is marked on the body with a molded diode symbol pointing toward the cathode end, and the case must be soldered to the system ground plane for proper clamping function.
What IEC standards does the JANTX1N5648A meet for electromagnetic compatibility?
The JANTX1N5648A is validated for IEC61000-4-2 (ESD ±8 kV contact), IEC61000-4-4 (EFT 4 kV), and IEC61000-4-5 (lightning surge, Class 4 with 42 Ω source). These certifications are confirmed in the Applications/Benefits section of T4-LDS-0096 Rev. 3 and supported by Microchip's compliance documentation for MIL-qualified parts.
JANTX1N5648A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-202AA, DO-13, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 25.3A
- 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)
JANTX1N5648A FAQ
1.How can I place an order for JANTX1N5648A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N5648A 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 JANTX1N5648A reliable?
The price and inventory of JANTX1N5648A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N5648A is usually 5 days.
3.What payment methods are accepted for JANTX1N5648A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N5648A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N5648A?
JANTX1N5648A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N5648A 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 JANTX1N5648A?
For technical support, including JANTX1N5648A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N5648A requirements.
6.How does Aetrix verify that JANTX1N5648A is sourced from the original manufacturer or authorized distributors?
All JANTX1N5648A 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 JANTX1N5648A meets industry standards.
7.What is the process for return or replacement of JANTX1N5648A?
All JANTX1N5648A units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N5648A, 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 JANTX1N5648A part is unused and in its original packaging.
Return procedure for JANTX1N5648A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N5648A Tags
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Diodes Incorporated
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