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Microchip Technology 1N5663A/TR
- Part No.:
- 1N5663A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5663A/TR.pdf
- Description:
- TVS DIODE 145VWM 234VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:5,668
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Product details
Overview
1N5663A/TR from Microchip Technology is a unidirectional transient voltage suppressor (TVS) diode in a hermetically sealed DO-13 metal package, rated for 1500 W peak pulse power at 10/1000 µs, with 138 V standoff voltage (VWM), 153 V minimum breakdown voltage (V(BR)), and 244 V maximum clamping voltage (VC) at 6.2 A peak pulse current. It is used for secondary lightning protection in avionics, industrial control, and power supply input stages per IEC 61000-4-5 with 42 Ω source impedance (Class 2).
For engineers reviewing the 1N5663A/TR datasheet, 1N5663A/TR pinout, 1N5663A/TR application, or 1N5663A/TR equivalent, this device delivers sub-100 ps response time, radiation-hardened operation, and military-grade reliability in through-hole mounting - critical for high-reliability aerospace, defense, and ruggedized embedded systems requiring stable transient suppression under -55°C to +175°C operating conditions.
Technical Context
The 1N5663A/TR operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its 153–162 V V(BR) range at 1 mA test current. Its clamping action limits transient-induced voltage to ≤244 V at 6.2 A, enabling protection of downstream silicon against ESD (IEC 61000-4-2), EFT (IEC 61000-4-4), and induced lightning surges.
Designed for DO-13 (DO-202AA) through-hole mounting, the device features cathode-to-case polarity, tin-lead plating per MIL-STD-750, and thermal resistance of 50°C/W junction-to-lead. It supports 200 A forward surge current (8.3 ms half-sine) and maintains <5 µA standby leakage at 138 V VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 138 V - Maximum continuous reverse voltage before conduction; sets minimum system operating voltage threshold for reliable non-conductive standby. |
| V(BR) Min/Max | 153 V / 162 V @ 1 mA - Avalanche onset range defining precise overvoltage trip point for predictable clamping initiation. |
| VC @ IPP | 244 V @ 6.2 A - Peak clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected circuitry. |
| PPP | 1500 W - Non-repetitive peak pulse power handling capacity; defines survivability against high-energy transients. |
| Response Time | <100 ps - Enables effective suppression of nanosecond-scale ESD events before sensitive ICs are damaged. |
| Operating Temp | -55°C to +175°C - Supports deployment in extreme environments including engine compartments and avionics bays. |
| Package | DO-13 (DO-202AA) - Hermetic metal-glass construction ensures long-term reliability and moisture resistance in harsh conditions. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to case and marked by diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Forward current entry / Reverse voltage reference | Connected to system ground or low-side return path; establishes reference for unidirectional clamping. |
| Cathode (Lead 1) | Transient voltage clamp output / Case connection | Electrically tied to metal case; must be connected to protected line (e.g., +12 V rail) to shunt surges to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables robust protection against high-energy switching transients and secondary lightning surges without degradation. |
| <100 ps response time | Prevents ESD damage to CMOS inputs and microcontrollers by clamping before voltage overshoot reaches destructive levels. |
| Hermetic DO-13 metal package | Eliminates moisture ingress and corrosion risk in high-humidity or sealed aerospace enclosures over 20+ year service life. |
| Radiation-hardened design | Meets Microsemi MicroNote 050 requirements for total ionizing dose (TID) tolerance in space and nuclear applications. |
| MIL-PRF-19500/500 qualified (JANTXV option) | Supports traceable procurement for defense programs requiring certified screening, lot traceability, and extended temperature validation. |
Applications
| Aerospace Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protecting 28 V DC bus lines in aircraft avionics bays from induced RF and secondary lightning per IEC 61000-4-5 Class 2 (42 Ω source). IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient overvoltage on main power rail before it reaches DC-DC converters and flight control modules. Use Value: Limits voltage excursion to ≤244 V during 6.2 A surge, preserving integrity of MIL-STD-704-compliant power supplies and preventing latch-up in FPGAs. |
Use Scenario: Safeguarding PLC input terminals and servo drive power inputs against inductive kickback from contactor switching and relay coil de-energization. IC Role / Device Role / Timing Role: Fast-acting voltage clamp absorbing 1500 W energy bursts to prevent MOSFET gate oxide rupture and op-amp input stage failure. Use Value: Withstands 200 A forward surge (8.3 ms) and operates continuously from -55°C to +175°C, ensuring uptime in factory-floor environments with wide thermal cycling. |
| Defense Vehicle Electronics | Ruggedized Communication Equipment |
Use Scenario: Securing CAN bus power rails and sensor excitation lines in armored vehicle ECUs exposed to EMP-like transients and battery dump events. IC Role / Device Role / Timing Role: Standby-mode TVS suppressing >100 ps ESD events while maintaining <5 µA leakage at 138 V to avoid battery drain. Use Value: Radiation hardness and JANTXV qualification enable use in mission-critical subsystems where component failure is not acceptable. |
Use Scenario: Shielding RS-485 transceiver power pins and antenna feedlines in outdoor base stations subjected to lightning-induced surges on telecom infrastructure. IC Role / Device Role / Timing Role: Primary-level transient suppressor placed at board edge to divert surge energy before reaching signal conditioning ICs and LDO regulators. Use Value: DO-13 mechanical robustness and 50°C/W junction-to-lead thermal resistance allow direct PCB mounting without heatsinking in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5663A | No tape-and-reel packaging; bulk format only; identical electrical specs and DO-13 package. | Suitable for manual assembly or low-volume prototyping where reel feeding is unnecessary. | Select 1N5663A/TR when automated SMT placement requires EIA-296 compliant tape-and-reel delivery. |
| SMCJ150A | Surface-mount SMC package; 150 V VWM; 243 V VC @ 6.2 A; same 1500 W rating but lower thermal resistance (junction-to-ambient). | Better suited for high-density PCBs with automated reflow assembly; lacks hermetic seal and radiation hardness. | Choose SMCJ150A only if board space constraints prohibit through-hole components and radiation tolerance is not required. |
Compared with 1N5663A/TR, the 1N5663A offers identical performance in bulk form but no reel support, while SMCJ150A trades hermetic reliability and radiation hardness for surface-mount compatibility - making 1N5663A/TR the sole choice for high-integrity through-hole deployments in aerospace and defense.
Availability
1N5663A/TR is available at Aetrix Electronics and suitable for aerospace power distribution, industrial motor drive inputs, defense vehicle electronics, and ruggedized communication equipment requiring stable component supply across extended product lifecycles.
Supply support for 1N5663A/TR 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 (formerly Microsemi) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-tolerant components for aerospace, defense, and industrial markets.
The 1N5663A/TR belongs to Microchip's legacy JAN/JANTXV-qualified TVS diode family, engineered for mission-critical transient suppression in environments where failure is not an option - particularly in avionics, military vehicles, and nuclear instrumentation.
FAQ
What is the standoff voltage (VWM) of the 1N5663A/TR?
The 1N5663A/TR has a rated standoff voltage (VWM) of 138 V, meaning it remains non-conductive up to this reverse voltage level during normal operation. This value ensures compatibility with 120–130 V nominal DC systems such as aircraft 28 V buses with margin, and aligns with IEC 61000-4-5 Class 2 surge testing requirements using a 42 Ω source impedance. The 1N5663A/TR maintains leakage current below 5 µA at this voltage.
Does the 1N5663A/TR meet military specifications?
Yes, the 1N5663A/TR is part of Microchip's MIL-PRF-19500/500 qualified TVS series. While the "TR" suffix denotes tape-and-reel packaging, the underlying 1N5663A die and DO-13 construction meet JANTXV-level screening requirements when ordered with appropriate prefixes (e.g., JANTXV1N5663A). Its hermetic metal package, radiation hardness per MicroNote 050, and -55°C to +175°C operating range fulfill key military environmental and reliability mandates.
What is the clamping voltage of the 1N5663A/TR at its rated peak pulse current?
The 1N5663A/TR exhibits a maximum clamping voltage (VC) of 244 V at its rated peak pulse current (IPP) of 6.2 A under the standard 10/1000 µs waveform. This value represents the highest voltage that will appear across the device during a full-power transient event, directly determining the maximum stress imposed on downstream components like DC-DC controllers or interface ICs. The 1N5663A/TR achieves this with sub-100 ps response time to limit overshoot.
Can the 1N5663A/TR be used for ESD protection?
Yes, the 1N5663A/TR is explicitly rated for ESD protection per IEC 61000-4-2 due to its <100 ps response time and ability to clamp fast-rising transients. It delivers 1500 W peak pulse power handling, far exceeding typical human-body-model (HBM) ESD events (up to ~1.5 kW for worst-case 8 kV discharges). The 1N5663A/TR is commonly deployed on power rails feeding sensitive logic, though dedicated low-capacitance ESD arrays may be preferred for high-speed data lines.
What is the thermal resistance of the 1N5663A/TR and how does it affect layout?
The 1N5663A/TR has a junction-to-lead thermal resistance of 50°C/W when measured at 0.375 inches (10 mm) from the case, and 110°C/W junction-to-ambient on FR4 with 4 mm² copper pads. This means PCB layout must provide adequate copper area and lead length control to manage heat during repetitive surges. For single-event protection, thermal mass of the leads suffices; however, sustained surge duty cycles require attention to trace width and proximity to ground planes to avoid localized overheating of the 1N5663A/TR.
1N5663A/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-13
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 145V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 234V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- 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
1N5663A/TR FAQ
1.How can I place an order for 1N5663A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5663A/TR 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 1N5663A/TR reliable?
The price and inventory of 1N5663A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5663A/TR is usually 5 days.
3.What payment methods are accepted for 1N5663A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5663A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5663A/TR?
1N5663A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5663A/TR 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 1N5663A/TR?
For technical support, including 1N5663A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5663A/TR requirements.
6.How does Aetrix verify that 1N5663A/TR is sourced from the original manufacturer or authorized distributors?
All 1N5663A/TR 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 1N5663A/TR meets industry standards.
7.What is the process for return or replacement of 1N5663A/TR?
All 1N5663A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5663A/TR, 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 1N5663A/TR part is unused and in its original packaging.
Return procedure for 1N5663A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5663A/TR Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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