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Microchip Technology JANTXV1N5651A
- Part No.:
- JANTXV1N5651A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
JANTXV1N5651A.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:9,592
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Product details
Overview
JANTXV1N5651A from Microchip Technology (formerly Microsemi) is a hermetically sealed, unidirectional transient voltage suppressor (TVS) diode in DO-13 metal package, designed for high-reliability aerospace and military systems. It features 50.4 V minimum breakdown voltage (VBR), 45.4 V rated standoff voltage (VWM), 80.5 V maximum clamping voltage (VC) at 18.6 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform - enabling robust protection against ESD, EFT, and secondary lightning surges in avionics power rails.
For engineers reviewing the JANTXV1N5651A datasheet, JANTXV1N5651A pinout, JANTXV1N5651A application, or JANTXV1N5651A equivalent, this part delivers MIL-PRF-19500/500 Class V qualification, radiation hardness per MicroNote 050, and verified performance under IEC61000-4-2/4-4/4-5 with 12 Ω source impedance up to Class 2 surge levels - critical for flight-critical subsystems requiring deterministic clamping response and long-term hermetic reliability.
Technical Context
This TVS operates as a unidirectional avalanche clamp, triggered only during reverse overvoltage events above its VWM threshold, with cathode tied to case for low-inductance grounding. Its <100 ps response time ensures sub-nanosecond turn-on before sensitive downstream circuitry sustains damage.
The device is rated for -55°C to +175°C operating temperature, exhibits 0.103%/°C temperature coefficient of VBR, and maintains 1500 W pulse power capability at TL = 25°C with 0.01% duty cycle - validated via JEDEC-compliant 10/1000 µs exponential surge testing per Figure 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Rated Standoff) | 45.4 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; sets upper limit for protected line's nominal DC operating voltage. |
| VBR (Min @ IBR) | 50.4 V @ 1 mA - Minimum avalanche initiation voltage; guarantees clamping begins no earlier than this threshold under specified test current. |
| VC @ IPP | 80.5 V @ 18.6 A - Peak voltage across device during full 1500 W surge; defines worst-case overvoltage seen by protected ICs. |
| Peak Pulse Power | 1500 W (10/1000 µs) - Sustained energy absorption capacity without failure; enables single-device protection against MIL-STD-461 CS115 and IEC61000-4-5 Level 2 surges. |
| Response Time | <100 ps - Enables effective suppression of ESD events (IEC61000-4-2 ±8 kV contact) before logic-level transients propagate into FPGA or microcontroller I/O. |
| Operating Temp Range | -55°C to +175°C - Supports deployment in engine-mounted sensors, radar power supplies, and other high-temperature avionics environments. |
| Package | DO-13 (DO-202AA) - Hermetically sealed metal-glass case with tin-lead plating; provides superior moisture resistance and thermal conductivity vs. plastic packages. |
Pinout & Package
Hermetically sealed DO-13 (DO-202AA) metal package with axial leads: cathode terminal electrically connected to case and marked by diode symbol on body; anode is lead 2. Case serves as low-inductance return path for surge current.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Surge Current Input | Connected to protected line; carries full transient current into device during clamping event. |
| Cathode (Case / Lead 1) | Surge Return Path | Internally bonded to metal case; must be soldered to low-impedance ground plane to minimize clamping overshoot and ensure <100 ps response. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 metal packaging | Eliminates moisture ingress and outgassing risks in vacuum or high-humidity flight environments; certified per MIL-PRF-19500/500. |
| JANTXV military qualification | Meets stringent screening requirements including burn-in, temperature cycling, and radiation hardness (MicroNote 050) for space-qualified and airborne platforms. |
| 1500 W peak pulse power | Supports single-device protection against IEC61000-4-5 12 Ω source impedance Class 2 surges (1 kV open-circuit, 500 A short-circuit) without derating. |
| Sub-100 ps response time | Clamps ESD transients faster than typical PCB trace propagation delays, preventing coupling into adjacent signal lines or power domains. |
| 0.103%/°C VBR tempco | Ensures predictable clamping voltage shift across full -55°C to +175°C range - critical for systems where thermal drift could compromise protection margin. |
Applications
| Aerospace Power Distribution | Avionics Sensor Interface |
|---|---|
|
Use Scenario: Protecting 28 V DC bus inputs in flight control actuator power modules from inductive switching spikes and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed directly at connector entry point to shunt transients to chassis ground before reaching DC-DC converters and motor drivers. Use Value: Maintains 45.4 V standoff while clamping to ≤80.5 V during 18.6 A surges - preserving MOSFET gate oxide integrity and preventing latch-up in downstream regulators. |
Use Scenario: Shielding analog front-end inputs of inertial measurement units (IMUs) from ESD and RF-induced transients during ground handling and flight. IC Role / Device Role / Timing Role: Fast-response TVS mounted at sensor harness interface to divert sub-100 ns ESD pulses away from precision op-amps and ADC reference paths. Use Value: Sub-100 ps turn-on prevents transient energy from propagating through PCB traces into sensitive analog signal chains, reducing post-surge calibration drift. |
| Military Vehicle Electronics | Satellite Power Conditioning |
|
Use Scenario: Safeguarding 270 V DC distribution networks in armored vehicle command systems against EMP-like transients and load dump events. IC Role / Device Role / Timing Role: High-power TVS deployed across main power feeders to absorb multi-kW surges generated by alternator field collapse or arc faults. Use Value: 1500 W pulse rating and -55°C to +175°C operation enable reliable protection in extreme under-hood thermal environments without thermal runaway. |
Use Scenario: Protecting solar array regulator inputs in LEO satellites from secondary lightning effects and spacecraft charging transients. IC Role / Device Role / Timing Role: Radiation-hardened TVS integrated into power management unit input stage to clamp induced surges without degradation in vacuum or total ionizing dose exposure. Use Value: Inherent radiation hardness per MicroNote 050 eliminates need for shielding or redundancy, reducing mass and complexity in constrained satellite power architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5651A | Commercial-grade version; same VWM, VBR, VC, and package but lacks MIL-PRF-19500/500 screening and radiation hardness validation. | Approved for industrial or non-safety-critical avionics; not qualified for flight-critical or space-rated deployments. | Select when cost sensitivity outweighs mission-critical reliability requirements and environmental stress screening is unnecessary. |
| JANTXV1N5652A | Higher VWM (50.2 V), VBR (55.8 V min), and VC (89.0 V); same 1500 W rating and DO-13 package. | Used where protected line operates near 48 V nominal (e.g., telecom power systems); provides larger margin above 48 V rail but higher clamping voltage. | Choose when system nominal voltage exceeds 45.4 V and requires tighter VWM/VBR margin without changing board layout. |
Compared with JANTXV1N5651A, the 1N5651A offers identical electrical specs but no military screening, while JANTXV1N5652A raises clamping voltage to support higher-voltage rails - making JANTXV1N5651A optimal for 28 V aerospace systems needing guaranteed radiation tolerance and precise 45.4 V standoff.
Availability
JANTXV1N5651A is available at Aetrix Electronics and suitable for aerospace power distribution, avionics sensor interfaces, and military vehicle electronics requiring stable component supply, long-term obsolescence management, and traceable MIL-spec sourcing.
Supply support for JANTXV1N5651A 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 now manufactures high-reliability analog and mixed-signal components for aerospace, defense, and industrial markets.
The JANTXV1N5651A belongs to Microchip's legacy Microsemi TVS diode family, engineered specifically for mission-critical surge protection in avionics, radars, and satellite power systems where hermeticity, radiation tolerance, and MIL-qualified screening are mandatory.
FAQ
What is the maximum clamping voltage of JANTXV1N5651A under standard test conditions?
The JANTXV1N5651A has a maximum clamping voltage (VC) of 80.5 V when subjected to its rated peak pulse current of 18.6 A using the 10/1000 µs waveform. This value is measured at TA = 25°C and defines the highest voltage that will appear across the protected line during a full-power surge event - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings.
Is JANTXV1N5651A suitable for IEC61000-4-5 compliance testing with 12 Ω source impedance?
Yes, JANTXV1N5651A is explicitly rated for IEC61000-4-5 secondary lightning protection with 12 Ω source impedance up to Class 2 (1 kV open-circuit, 500 A short-circuit). The datasheet confirms this capability in the Applications/Benefits section, making JANTXV1N5651A appropriate for avionics and military vehicle systems requiring validated surge immunity at this impedance level.
Does JANTXV1N5651A require external heat sinking in typical PCB layouts?
No, JANTXV1N5651A does not require external heat sinking for transient suppression duty cycles. Its thermal resistance is 50°C/W junction-to-lead when mounted with 0.375" (10 mm) lead length, and it is rated for 1 W DC power dissipation only at TL ≤ +125°C. Since TVS devices operate in avalanche mode only during brief surges, steady-state heating is negligible - PCB copper area suffices for thermal management.
How is polarity marked on the JANTXV1N5651A DO-13 package?
JANTXV1N5651A uses cathode-to-case polarity: the metal case is the cathode terminal, and a diode symbol is laser-marked on the glass body to indicate polarity. Lead 1 (attached to case) is cathode; lead 2 is anode. This configuration enables low-inductance grounding of the cathode directly to chassis or ground plane - essential for achieving its <100 ps response time and minimizing clamping overshoot.
What is the temperature coefficient of breakdown voltage for JANTXV1N5651A?
The JANTXV1N5651A has a maximum temperature coefficient of breakdown voltage (αVBR) of 0.103%/°C. This value quantifies how VBR increases with junction temperature and is critical for predicting clamping behavior across the full -55°C to +175°C operating range - especially in high-temperature avionics applications where thermal drift could reduce protection margin.
JANTXV1N5651A 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 19.5A
- 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)
JANTXV1N5651A FAQ
1.How can I place an order for JANTXV1N5651A through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTXV1N5651A 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 JANTXV1N5651A reliable?
The price and inventory of JANTXV1N5651A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTXV1N5651A is usually 5 days.
3.What payment methods are accepted for JANTXV1N5651A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTXV1N5651A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTXV1N5651A?
JANTXV1N5651A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTXV1N5651A 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 JANTXV1N5651A?
For technical support, including JANTXV1N5651A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTXV1N5651A requirements.
6.How does Aetrix verify that JANTXV1N5651A is sourced from the original manufacturer or authorized distributors?
All JANTXV1N5651A 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 JANTXV1N5651A meets industry standards.
7.What is the process for return or replacement of JANTXV1N5651A?
All JANTXV1N5651A units undergo pre-shipment inspection (PSI). If there is an issue with JANTXV1N5651A, 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 JANTXV1N5651A part is unused and in its original packaging.
Return procedure for JANTXV1N5651A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTXV1N5651A Tags
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