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Microchip Technology 1N5662
- Part No.:
- 1N5662
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
1N5662.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:6,484
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Product details
Overview
1N5662 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, avionics, and industrial systems. It features a 130 V rated standoff voltage (VWM), 144 V minimum breakdown voltage (V(BR)), 230 V maximum clamping voltage (VC) at 6.5 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the 1N5662 datasheet, 1N5662 pinout, 1N5662 application, or 1N5662 equivalent, this device is selected for secondary lightning protection (IEC61000-4-5), ESD/EFT hardening (IEC61000-4-2/-4-4), and inductive switching transient suppression where sub-100 ps response time, radiation hardness, and military-grade thermal stability (-55°C to +175°C) are critical.
Technical Context
The 1N5662 operates as a unidirectional avalanche diode, entering controlled breakdown when reverse voltage exceeds its 144–152 V V(BR) range at 1 mA test current. Its clamping action limits transients to ≤230 V while sustaining 6.5 A peak pulse current under standardized 10/1000 µs surge conditions.
Constructed in a DO-13 (DO-202AA) hermetic metal-glass package with cathode connected to case, it delivers 50°C/W junction-to-lead thermal resistance and inherent radiation hardness per MicroNote 050 - enabling use in high-reliability airborne and space-qualified systems without derating penalties up to +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 130 V - Maximum continuous reverse operating voltage before conduction begins; sets system DC bus compatibility limit. |
| V(BR) @ I(BR) | 144–152 V @ 1 mA - Confirmed avalanche onset range; ensures predictable turn-on margin above VWM. |
| VC @ IPP | 230 V @ 6.5 A - Maximum clamped voltage during 10/1000 µs surge; defines worst-case protected circuit stress level. |
| PPP (Peak Pulse Power) | 1500 W - Sustained single-pulse energy handling capability; enables robust protection against IEC61000-4-5 Class 1–4 surges. |
| Response Time | <100 ps - Near-instantaneous avalanche initiation; provides effective ESD (IEC61000-4-2) and EFT (IEC61000-4-4) suppression. |
| Operating Temp | -55°C to +175°C - Full military-grade temperature range; supports operation in engine bays, avionics bays, and downhole electronics. |
| Junction-to-Lead Rθ | 50°C/W - Enables direct thermal coupling to chassis or heatsink via case; critical for high-repetition transient environments. |
Pinout & Package
Package: DO-13 (DO-202AA), hermetically sealed metal-glass case with cathode connected to case. Tin-lead plated leads compliant with MIL-STD-750 Method 2026. Polarity marked by diode symbol on body; cathode terminal is electrically tied to case.
| 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 clamping event. |
| Cathode (Lead 1 / Case) | Reference and return path | Electrically bonded to metal case; must be connected to system ground plane or chassis for low-inductance surge dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Hermetic DO-13 metal package | Prevents moisture ingress and parameter drift over decades; qualified for MIL-PRF-19500/500 JANTXV reliability screening. |
| 1500 W peak pulse power | Supports repeated IEC61000-4-5 surges up to Class 4 (42 Ω source) without degradation when properly heatsinked. |
| Inherent radiation hardness | Validated per MicroNote 050; suitable for avionics and satellite subsystems without additional shielding or derating. |
| Sub-100 ps response time | Clamps ESD events before IC input structures fail; meets IEC61000-4-2 Level 4 (15 kV air, 8 kV contact) requirements. |
| Wide temperature operation | Stable VWM and VC across -55°C to +175°C; eliminates need for thermal compensation circuits in extreme environments. |
Applications
| Aerospace Avionics Protection | Industrial Motor Drive Control |
|---|---|
|
Use Scenario: Protecting ARINC 429 data lines and sensor inputs in flight control computers exposed to induced RF and secondary lightning. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between signal line and chassis ground to shunt transients before reaching receiver ICs. Use Value: 230 V clamping voltage ensures downstream logic remains below absolute maximum ratings during 1 kV/2 kA IEC61000-4-5 surges with 42 Ω source impedance. |
Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency motor drives subject to inductive switching spikes from IGBT commutation. IC Role / Device Role / Timing Role: Primary transient suppressor on DC bus rails and isolated signal paths to prevent false triggering and latch-up. Use Value: 1500 W pulse rating and 50°C/W thermal resistance allow sustained operation at 10 kHz switching frequencies without thermal runaway. |
| Military Vehicle Power Systems | Downhole Oil & Gas Instrumentation |
|
Use Scenario: Hardening 28 V DC power distribution networks in armored vehicles against load dump and EMP-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly across bus rails with low-inductance case-ground connection. Use Value: 130 V VWM matches 28 V nominal bus with 4× safety margin; -55°C to +175°C rating covers engine compartment extremes. |
Use Scenario: Protecting pressure/temperature sensor front-ends in high-temperature wellhead controllers exposed to electrochemical and lightning-coupled surges. IC Role / Device Role / Timing Role: Hermetic DO-13 device used as first-line defense due to zero moisture permeability and radiation tolerance. Use Value: Radiation hardness per MicroNote 050 and 175°C operation enable 20+ year deployment in sealed downhole housings without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5662A | Tighter V(BR) tolerance (144–152 V → 144–152 V min/max unchanged, but tighter statistical spread per MIL-PRF-19500/500 screening). | Required for JANTXV-qualified designs needing guaranteed parametric consistency across temperature and life. | Select 1N5662A when military qualification (JANTXV prefix) and tighter V(BR) distribution are mandated by program spec. |
| SMCJ130A | Surface-mount SMC package; same 130 V VWM but higher VC (219 V) and lower IPP (6.8 A); plastic encapsulation vs. hermetic metal. | Suitable for commercial/industrial PCBs with space constraints but not for radiation-sensitive or long-life hermetic systems. | Choose SMCJ130A only for cost-sensitive, non-military applications where DO-13 through-hole mounting and hermeticity are not required. |
Compared with 1N5662, the 1N5662A offers enhanced screening for mission-critical programs, while SMCJ130A trades hermetic reliability and radiation hardness for board-space savings - making 1N5662 the optimal choice for aerospace, defense, and extended-lifetime industrial deployments.
Availability
1N5662 is available at Aetrix Electronics and suitable for aerospace avionics, industrial motor drives, military vehicle power systems, and downhole oil & gas instrumentation requiring stable component supply across extended product lifecycles.
Supply support for 1N5662 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 legacy high-reliability analog and discrete product lines including military-qualified TVS diodes.
The 1N5662 belongs to Microchip's legacy TVS diode family originally developed by Microsemi for aerospace and defense applications demanding hermetic packaging, radiation tolerance, and extended temperature operation.
FAQ
What is the clamping voltage of the 1N5662 under standard surge conditions?
The 1N5662 exhibits a maximum clamping voltage (VC) of 230 V when subjected to its rated 6.5 A peak pulse current (IPP) under the 10/1000 µs waveform defined in IEC61000-4-5. This value is measured at 25°C ambient and represents the worst-case voltage seen by downstream circuitry during transient suppression - critical for ensuring protected ICs remain within their absolute maximum ratings.
Is the 1N5662 suitable for IEC61000-4-5 secondary lightning protection?
Yes, the 1N5662 is explicitly rated for IEC61000-4-5 secondary lightning protection across multiple classes: Class 1 (42 Ω source) up to 1N5665A, Class 2 (42 Ω) up to 1N5663A, and Class 4 (42 Ω) up to 1N5648A. Its 1500 W peak pulse power and 230 V clamping voltage meet the energy-handling and voltage-limiting requirements for these test levels when implemented with proper PCB layout and grounding.
Does the 1N5662 have radiation hardness certification?
Yes, the 1N5662 is inherently radiation hard per Microsemi MicroNote 050 - a technical note validating its performance under total ionizing dose (TID) exposure relevant to avionics and space applications. This characteristic stems from its DO-13 hermetic metal-glass construction and silicon process, requiring no additional qualification testing for typical airborne radiation environments.
What is the thermal resistance specification for the 1N5662?
The 1N5662 has a junction-to-lead thermal resistance (RθJL) of 50°C/W when measured at 0.375 inches (10 mm) from the case body. This low thermal resistance enables efficient heat transfer to a chassis or heatsink, supporting reliable operation under repetitive surge conditions - especially important in motor drive and power supply applications where transient duty cycles exceed 0.01%.
How does the 1N5662 differ from the plastic-packaged 1N6267 series?
The 1N5662 uses a hermetically sealed DO-13 metal-glass package, whereas the 1N6267 series employs plastic axial-leaded packaging. This gives the 1N5662 superior long-term parameter stability, moisture resistance, and radiation hardness - making it suitable for aerospace, defense, and downhole applications where 20+ year field life and extreme environmental resilience are mandatory. The 1N6267 series is intended for commercial cost-sensitive use cases.
1N5662 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):
- 130V
- Voltage - Breakdown (Min):
- 144V
- Voltage - Clamping (Max) @ Ipp:
- 230V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-13 (DO-202AA)
1N5662 FAQ
1.How can I place an order for 1N5662 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5662 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 1N5662 reliable?
The price and inventory of 1N5662 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5662 is usually 5 days.
3.What payment methods are accepted for 1N5662?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5662 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5662?
1N5662 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5662 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 1N5662?
For technical support, including 1N5662 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5662 requirements.
6.How does Aetrix verify that 1N5662 is sourced from the original manufacturer or authorized distributors?
All 1N5662 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 1N5662 meets industry standards.
7.What is the process for return or replacement of 1N5662?
All 1N5662 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5662, 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 1N5662 part is unused and in its original packaging.
Return procedure for 1N5662:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5662 Tags
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