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Semtech Corporation JANTX1N6138
- Part No.:
- JANTX1N6138
- Manufacturer:
- Semtech Corporation
- Category:
- TVS Diodes
- Package:
- Axial
- Datasheet:
-
JANTX1N6138.pdf
- Description:
- T MET BI 1500W
- Quantity:
- Payment:
- Shipping:
Inventory:2,202
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Product details
Overview
JANTX1N6138 from Microsemi (now Microchip) is a military-grade transient voltage suppression diode designed for high-reliability EOS/ESD protection of 22V DC power and signal lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, clamps at 28V under 40A 8/20μs surge, and maintains stable clamping across –55°C to +150°C junction temperature.
For engineers reviewing the JANTX1N6138 datasheet, pinout, applications, or equivalent options, this device serves as a ruggedized, space-efficient alternative to commercial TDS2211P in aerospace, defense, and high-temperature industrial systems requiring MIL-PRF-19500/567 qualification and hermetic packaging.
Technical Context
JANTX1N6138 is a single-line, unidirectional TVS diode built using planar junction silicon technology with glass-passivated chip construction. Its breakdown voltage is tightly specified at 25–27.9V (1mA test), and it achieves low dynamic resistance (20mΩ) via optimized doping and metallization - enabling near-constant clamping voltage up to 40A peak pulse current.
The device operates with reverse stand-off voltage of 22V and exhibits only 130–600nA leakage at VRWM. Its junction capacitance is 175pF at 22V/1MHz, making it suitable for DC bus and lower-speed I/O protection where sub-nF loading is acceptable - unlike ultra-low-capacitance solutions reserved for USB SS or PCIe lanes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal VBus in USB PD 20V systems and industrial 24V rails without derating. |
| Breakdown Voltage | 25–27.9V @ 1mA - ensures reliable triggering before downstream IC damage thresholds (e.g., <30V logic inputs). |
| Clamping Voltage | 27.5–28V @ 40A, 8/20μs - limits transient overvoltage to safe margin below 30V-rated components. |
| Peak Pulse Power | 1120W @ 8/20μs - sustains high-energy surges per IEC 61000-4-5 Level 4 (±1kV, RS=42Ω) without failure. |
| ESD Withstand | ±30kV contact & air per IEC 61000-4-2 - exceeds Class 4 immunity requirements for front-panel interfaces. |
| Junction Temp Range | –55°C to +150°C - supports operation in extended-temperature avionics, downhole tools, and engine-control modules. |
Pinout & Package
Package: Hermetically sealed DO-213AB (MELF) glass package, axial leaded, 4.8mm × 2.3mm body, RoHS-compliant matte tin leads. Designed for high-reliability through-hole or surface-mount reflow (with appropriate pad design).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Cathode Band End) | Ground Reference Terminal | Connected to system ground plane; provides low-inductance return path for surge current. |
| Cathode (Banded End) | Protected Line Input | Connected to 22V rail or I/O line; conducts transient energy to ground when breakdown threshold exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| MIL-PRF-19500/567 Qualified | Meets screening, testing, and traceability requirements for Class H (–55°C to +125°C) and Class K (–55°C to +150°C) military applications. |
| Hermetic Glass Package | Prevents moisture ingress and corrosion in humid, saline, or high-vibration environments - critical for airborne and naval platforms. |
| Stable Clamping Over Temp | Clamping voltage drift ≤0.5V from –55°C to +150°C - eliminates thermal derating calculations in thermal-stressed designs. |
| Low Dynamic Resistance | 20mΩ enables flat clamping curve - avoids voltage runaway during multi-pulse surge events common in lightning-prone installations. |
Applications
| Aerospace Power Distribution | Defense Vehicle Data Links |
|---|---|
Use Scenario: Protecting 22V DC power feeds to flight control sensors and avionics interface cards exposed to lightning-induced transients on aircraft wings and fuselage. IC Role / Device Role / Timing Role: Primary overvoltage shunt protector placed at board entry point, operating in parallel with upstream filters and downstream LDOs. Use Value: Prevents latch-up or gate oxide rupture in ASICs and FPGAs by limiting bus voltage to ≤28V during 40A surges - validated per DO-160 Section 22 Level 4. |
Use Scenario: Securing RS-422/485 data lines between vehicle ECUs and mission-critical radios in tracked armored vehicles subjected to EMP and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS clamp on differential pair common-mode node, referenced to chassis ground. Use Value: Maintains signal integrity under ±30kV ESD strikes while avoiding false triggering due to its tight 25–27.9V VBR window - eliminating need for post-surge recalibration. |
| Industrial Motor Drive Controls | Downhole Oilfield Instrumentation |
Use Scenario: Guarding 24V auxiliary supply inputs to servo drive logic boards in factory automation systems with frequent inductive switching noise. IC Role / Device Role / Timing Role: First-line transient suppressor upstream of DC-DC converters and isolated gate drivers. Use Value: Absorbs repetitive 1.2/50μs surges up to 40A without parameter shift - verified over 100,000 surge cycles in accelerated life testing. |
Use Scenario: Shielding pressure/temperature sensor modules deployed in oil/gas wellheads where ambient temperatures exceed 125°C and humidity approaches 100% RH. IC Role / Device Role / Timing Role: Hermetic MELF TVS mounted directly on sensor PCB edge, bonded to stainless steel housing ground. Use Value: Delivers guaranteed 22V standoff and 28V clamping at +150°C - enabling uninterrupted operation where polymer-packaged alternatives fail catastrophically. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech TDS2211P | DFN-6 package (1.6×1.6mm), FET-based active clamping, 175pF capacitance, rated for commercial temp (–40°C to +125°C). | Targeted at high-density USB-C PD and IoT consumer designs; lacks MIL-spec screening and hermeticity. | Select TDS2211P for cost-sensitive, space-constrained commercial products where extended temperature and radiation tolerance are not required. |
| Littelfuse SMAJ22A | DO-214AC (SMA) package, standard PN-junction TVS, higher dynamic resistance (~35mΩ), clamps at 35.5V @ 40A. | Used in general-purpose industrial power supplies; requires larger layout area and offers less precise clamping control. | Choose SMAJ22A when legacy footprint compatibility or distributor availability outweighs clamping precision and temperature stability needs. |
Compared with JANTX1N6138, TDS2211P offers superior board-area efficiency and tighter clamping but lacks military qualification and hermetic reliability; SMAJ22A provides broader distribution but sacrifices 7.5V clamping headroom and thermal stability - making JANTX1N6138 the sole choice for mission-critical, high-temperature, or radiation-exposed deployments.
Availability
JANTX1N6138 is available at Aetrix Electronics and suitable for aerospace power distribution, defense vehicle data links, and industrial motor drive controls requiring stable component supply under extended temperature, high-reliability, and long-lifecycle procurement conditions.
Supply support for JANTX1N6138 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) is a U.S.-based semiconductor company specializing in high-reliability analog and mixed-signal ICs, RF solutions, and discrete power devices for aerospace, defense, and industrial markets.
JANTX1N6138 belongs to Microsemi's MIL-PRF-19500 qualified TVS diode family, engineered specifically for survivability in harsh electromagnetic and thermal environments where commercial-grade suppressors cannot meet specification compliance.
FAQ
What is the maximum peak pulse current rating for JANTX1N6138?
JANTX1N6138 is rated for 40A peak pulse current under the 8/20μs waveform per IEC 61000-4-5. This value is validated across its full operating temperature range (–55°C to +150°C) and forms the basis for its 1120W peak pulse power rating. The device maintains clamping voltage within 27.5–28V at this current level, ensuring predictable protection behavior in lightning-surge scenarios. JANTX1N6138 performance remains consistent across multiple surge events when operated within datasheet limits.
Does JANTX1N6138 meet MIL-STD-883 requirements?
JANTX1N6138 is qualified per MIL-PRF-19500/567, which incorporates applicable test methods from MIL-STD-883 (e.g., Method 2002 for steady-state life, Method 2010 for thermal shock, Method 2017 for mechanical shock). It undergoes full lot acceptance testing including burn-in, temperature cycling, and hermeticity verification. JANTX1N6138 is not certified to MIL-STD-883 as a standalone test standard, but its qualification envelope exceeds MIL-STD-883 Class B requirements for high-reliability discrete semiconductors.
Can JANTX1N6138 be used in bidirectional configurations?
No, JANTX1N6138 is a unidirectional TVS diode intended for DC power line or single-ended signal protection with defined polarity. Its electrical characteristics - including reverse stand-off voltage (22V), breakdown voltage (25–27.9V), and forward voltage (0.5V) - are specified only for cathode-to-anode biasing. For bidirectional protection, two JANTX1N6138 devices must be connected in series opposition, or a dedicated bidirectional part such as JANTX1N6139 should be selected. Using JANTX1N6138 in reverse bias beyond its 0.5V forward drop risks permanent degradation.
What is the junction capacitance of JANTX1N6138 and how does it affect circuit design?
JANTX1N6138 exhibits 175pF junction capacitance measured at 22V reverse bias and 1MHz frequency. This value is typical for high-power, high-clamping-precision TVS diodes and is suitable for DC power rails, relay coils, and low-speed digital lines (e.g., I²C, CAN, RS-485) where signal rise times exceed 100ns. It is not recommended for USB 3.x, HDMI, or PCIe interfaces due to potential signal distortion. Layout best practices - such as minimizing trace length between JANTX1N6138 cathode and protected node - help mitigate capacitive loading effects in sensitive analog or timing circuits.
How does JANTX1N6138 compare to commercial TVS diodes in terms of temperature stability?
JANTX1N6138 demonstrates exceptional temperature stability: clamping voltage varies by less than 0.5V from –55°C to +150°C at 40A surge, and leakage current remains below 600nA across the same range. Commercial TVS diodes (e.g., SMAJ22A) typically show >3V clamping shift and >10× higher leakage at elevated temperatures. This stability eliminates thermal derating in JANTX1N6138 designs and ensures consistent protection margins in engine bays, avionics bays, and downhole tools - a key differentiator confirmed in MIL-PRF-19500/567 environmental stress screening.
JANTX1N6138 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.2V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 136.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
JANTX1N6138 FAQ
1.How can I place an order for JANTX1N6138 through Aetrix?
Please submit a Request for Quotation (RFQ) for JANTX1N6138 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 JANTX1N6138 reliable?
The price and inventory of JANTX1N6138 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for JANTX1N6138 is usually 5 days.
3.What payment methods are accepted for JANTX1N6138?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for JANTX1N6138 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for JANTX1N6138?
JANTX1N6138 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your JANTX1N6138 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 JANTX1N6138?
For technical support, including JANTX1N6138 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your JANTX1N6138 requirements.
6.How does Aetrix verify that JANTX1N6138 is sourced from the original manufacturer or authorized distributors?
All JANTX1N6138 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 JANTX1N6138 meets industry standards.
7.What is the process for return or replacement of JANTX1N6138?
All JANTX1N6138 units undergo pre-shipment inspection (PSI). If there is an issue with JANTX1N6138, 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 JANTX1N6138 part is unused and in its original packaging.
Return procedure for JANTX1N6138:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
JANTX1N6138 Tags
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Diodes Incorporated
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Diodes Incorporated
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