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Microchip Technology 1N5636A
- Part No.:
- 1N5636A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5636A.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:7,751
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Product details
Overview
1N5636A from Microchip (formerly Microsemi) is a unidirectional transient voltage suppressor (TVS) diode in a hermetically sealed DO-13 metal package, designed for high-reliability surge protection in aerospace and industrial systems. It features a 11.1 V rated standoff voltage (VWM), 12.4 V minimum breakdown voltage (V(BR)), 18.2 V maximum clamping voltage (VC) at 82 A peak pulse current, and 1500 W peak pulse power rating per 10/1000 µs waveform - commonly deployed in avionics power rail protection against secondary lightning surges.
For engineers reviewing the 1N5636A datasheet, 1N5636A pinout, 1N5636A application, or 1N5636A equivalent, key selection criteria include its DO-13 mechanical robustness, <100 ps response time, -55°C to +175°C operating range, IEC61000-4-5 Class 4 compliance (12 Ω source impedance), and military-grade qualification availability with JANTXV prefix.
Technical Context
The 1N5636A operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its 12.4 V (min) V(BR) at 1 mA test current. Its clamping action limits transients to ≤18.2 V while conducting up to 82 A peak pulse current under standardized 10/1000 µs surge conditions.
It is hermetically sealed in a DO-13 (DO-202AA) metal-glass package with cathode connected to case, enabling low-inductance mounting and thermal dissipation of 50°C/W junction-to-lead. Its temperature coefficient of V(BR) is +0.081%/°C, ensuring predictable voltage drift across its full -55°C to +175°C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 11.1 V - Maximum continuous reverse voltage before leakage exceeds 5 µA; sets operating margin above system nominal voltage. |
| V(BR) @ I(BR) | 12.4 V min / 13.7 V max @ 1 mA - Avalanche onset threshold defining transient detection sensitivity and conduction initiation point. |
| VC @ IPP | 18.2 V max @ 82 A - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress. |
| PPP | 1500 W @ 10/1000 µs - Surge energy handling capacity; enables protection against IEC61000-4-5 Class 4 (12 Ω) lightning-induced transients. |
| Response Time | <100 ps - Enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4) without signal distortion. |
| Operating Temp | -55°C to +175°C - Supports deployment in engine bays, avionics bays, and downhole equipment without derating. |
| Package | DO-13 (DO-202AA) - Hermetic metal-glass construction ensures long-term reliability in high-humidity, radiation-prone, or vacuum environments. |
Pinout & Package
1N5636A uses a 2-terminal DO-13 (DO-202AA) hermetically sealed metal-glass package. The cathode is electrically connected to the case and marked with a diode symbol on the body. Lead 1 (cathode) must be tied to ground or low-impedance return path for proper clamping operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient input node | Connected to line being protected; conducts surge current toward cathode/case during avalanche. |
| Cathode (Lead 1 / Case) | Clamp reference node | Internally bonded to metal case; must be low-inductance grounded to achieve specified VC and response time. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables precise clamping on positive-going transients only, avoiding interference with DC bias or signal polarity in single-supply rails. |
| 1500 W peak pulse power | Supports repeated surge events per IEC61000-4-5 Class 4 (12 Ω source) without degradation, critical for airborne power distribution units. |
| Hermetic DO-13 packaging | Eliminates moisture ingress and outgassing risks in vacuum or high-G aerospace applications; qualified per MIL-PRF-19500/500. |
| 0.081%/°C V(BR) tempco | Ensures stable clamping threshold across extreme ambient shifts - essential for engine-mounted sensors and flight control electronics. |
| 1.4 g mass & axial leads | Facilitates manual soldering and mechanical strain relief in high-vibration mounts; compatible with legacy through-hole assembly lines. |
Applications
| Aerospace Power Distribution | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V DC bus in aircraft auxiliary power units from load dump and secondary lightning surges (IEC61000-4-5, 12 Ω source). IC Role / Device Role / Timing Role: Unidirectional TVS diode providing sub-100 ps overvoltage clamping on main power rail. Use Value: Limits transient voltage to ≤18.2 V during 82 A surges, preventing latch-up or burnout in upstream DC-DC converters and microcontrollers. |
Use Scenario: Safeguarding gate driver IC inputs in variable-frequency motor drives exposed to inductive switching noise and EFT bursts. IC Role / Device Role / Timing Role: Fast-response transient suppressor placed at isolated logic-level signal entry points. Use Value: Clamps ESD/EFT spikes before they propagate into sensitive CMOS inputs, maintaining functional safety integrity per IEC61800-3. |
| Avionics Sensor Interface | Railway Signaling Equipment |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in flight-critical systems from RF-induced transients and ESD. IC Role / Device Role / Timing Role: Low-leakage (5 µA @ 11.1 V) unidirectional clamp on signal lines referenced to chassis ground. Use Value: Maintains signal fidelity below 11.1 V standby while suppressing >12.4 V transients - preserving ADC accuracy and fault diagnostics. |
Use Scenario: Hardening 24 V DC signaling circuits in trackside interlocking systems against induced surges from nearby traction currents. IC Role / Device Role / Timing Role: High-energy (1500 W) surge protector mounted directly at field-wire entry points on DIN-rail controllers. Use Value: Withstands repeated 1 kV/500 A surges per EN 50121-3-2, extending service life in electromagnetically noisy rail environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5636 | Same VWM (11.1 V), but wider V(BR) tolerance: 11.7–13.2 V vs. 12.4–13.7 V for 1N5636A; no "A" suffix tight-tolerance binning. | Not qualified to MIL-PRF-19500/500; unsuitable for JANTXV-mandated avionics designs requiring traceable parametric screening. | Select 1N5636 only for commercial-grade cost-sensitive applications where ±5% V(BR) variation is acceptable. |
| SMBJ11A | Surface-mount SMB package; same VWM (11 V) and VC (18.2 V), but lower PPP (600 W); RoHS-compliant, non-hermetic plastic body. | Lacks radiation hardness and hermeticity; not approved for space or high-reliability military platforms per MicroNote 050. | Choose SMBJ11A for high-volume industrial PCBs where automated assembly and RoHS compliance outweigh extreme environment requirements. |
Compared with 1N5636 and SMBJ11A, the 1N5636A delivers superior surge robustness (1500 W), hermetic reliability, and military qualification - making it the sole choice for mission-critical avionics and defense systems where failure is not an option.
Availability
1N5636A is available at Aetrix Electronics and suitable for aerospace power distribution, industrial motor drive control, and avionics sensor interface applications requiring stable component supply, long-term obsolescence management, and traceable military-grade sourcing.
Supply support for 1N5636A 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 its high-reliability analog and discrete product portfolio, including radiation-hardened and hermetic components for aerospace, defense, and industrial markets.
The 1N5636A belongs to Microchip's legacy TVS diode family originally developed by Microsemi for demanding surge protection in avionics and military electronics - emphasizing hermetic packaging, wide temperature operation, and IEC61000-4-5 compliance.
FAQ
What is the standoff voltage (VWM) specification for the 1N5636A?
The 1N5636A has a rated standoff voltage (VWM) of 11.1 V, meaning it remains in high-impedance state below this reverse voltage while leaking ≤5 µA. This value is selected to provide sufficient margin above common 12 V nominal systems while ensuring reliable clamping onset at 12.4 V minimum breakdown voltage - a key parameter verified per JEDEC test conditions in the T4-LDS-0096 datasheet.
Is the 1N5636A suitable for IEC61000-4-5 Class 4 lightning surge protection?
Yes, the 1N5636A is explicitly rated for IEC61000-4-5 Class 4 secondary lightning protection with 12 Ω source impedance, as confirmed in the Applications/Benefits section of the T4-LDS-0096 datasheet. Its 1500 W peak pulse power and 18.2 V clamping voltage at 82 A enable it to limit surge energy within safe thresholds for downstream 12 V electronics - a capability validated across the full 1N5629 to 1N5636A Class 4 grouping.
Does the 1N5636A have military qualification options?
Yes, the 1N5636A is available in JAN, JANTX, and JANTXV military-qualified versions (e.g., JANTXV1N5636A) per MIL-PRF-19500/500, offering tighter parametric tolerances, extended temperature screening, and full traceability. These variants retain identical electrical specs and DO-13 packaging as the commercial 1N5636A but undergo additional environmental and reliability testing required for defense and aerospace deployments.
What is the thermal resistance characteristic of the 1N5636A?
The 1N5636A exhibits a thermal resistance of 50°C/W junction-to-lead when measured at 0.375 inches (10 mm) from the case body, per the Maximum Ratings table in the T4-LDS-0096 datasheet. This low thermal resistance - enabled by its metal-glass DO-13 package - allows efficient heat transfer to the PCB or heatsink, supporting reliable operation at full 1500 W surge ratings without thermal runaway.
How does the 1N5636A differ from the plastic-bodied 1N6267–1N6303A series?
The 1N5636A differs fundamentally from the plastic axial-leaded 1N6267–1N6303A series in package construction: it uses a hermetically sealed DO-13 metal-glass case versus plastic encapsulation. This gives the 1N5636A superior moisture resistance, radiation hardness (per MicroNote 050), and long-term stability in vacuum or high-humidity environments - critical distinctions confirmed in the Features section of the T4-LDS-0096 datasheet.
1N5636A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-13
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-13
1N5636A FAQ
1.How can I place an order for 1N5636A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5636A 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 1N5636A reliable?
The price and inventory of 1N5636A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5636A is usually 5 days.
3.What payment methods are accepted for 1N5636A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5636A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5636A?
1N5636A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5636A 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 1N5636A?
For technical support, including 1N5636A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5636A requirements.
6.How does Aetrix verify that 1N5636A is sourced from the original manufacturer or authorized distributors?
All 1N5636A 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 1N5636A meets industry standards.
7.What is the process for return or replacement of 1N5636A?
All 1N5636A units undergo pre-shipment inspection (PSI). If there is an issue with 1N5636A, 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 1N5636A part is unused and in its original packaging.
Return procedure for 1N5636A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5636A Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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