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Microchip Technology 1N5664
- Part No.:
- 1N5664
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-202AA, DO-13, Axial
- Datasheet:
-
1N5664.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:
- Shipping:
Inventory:5,810
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Product details
Overview
1N5664 from Microchip Technology 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 146 V rated standoff voltage (VWM), 162 V minimum breakdown voltage (V(BR)), 258 V maximum clamping voltage (VC) at 5.8 A peak pulse current (IPP), and 1500 W peak pulse power rating per 10/1000 µs waveform.
For engineers reviewing the 1N5664 datasheet, 1N5664 pinout, 1N5664 application, or 1N5664 equivalent, this device is selected for secondary lightning protection per IEC 61000-4-5 (with 42 Ω, 12 Ω, or 2 Ω source impedance), ESD/EFT immunity per IEC 61000-4-2/-4-4, and fast-clamp (<100 ps) protection of sensitive analog/digital interfaces in harsh electromagnetic environments.
Technical Context
The 1N5664 operates as a unidirectional avalanche diode, entering controlled breakdown above its VWM to clamp transient energy into ground while maintaining low leakage (<5 µA at 146 V). Its hermetic DO-13 package ensures stable performance across -55°C to +175°C operating temperature range and inherent radiation hardness per MicroNote 050.
It delivers 1500 W non-repetitive peak pulse power with <100 ps response time, enabling protection against inductive switching transients, induced RF, and secondary lightning surges. Thermal resistance is 50°C/W junction-to-lead (0.375" from body), supporting robust thermal management in through-hole mounted designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 146 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level DC bias margin. |
| V(BR) min | 162 V @ 1 mA - Guaranteed avalanche onset threshold; ensures predictable turn-on during overvoltage events. |
| VC @ IPP | 258 V @ 5.8 A - Peak clamped voltage under 10/1000 µs surge; defines worst-case stress on downstream circuitry. |
| PPP | 1500 W - Peak pulse power handling capability; enables protection against high-energy transients without failure. |
| Response time | <100 ps - Near-instantaneous clamping; critical for preserving signal integrity in high-speed data lines. |
| Operating temp | -55°C to +175°C - Wide thermal range supports deployment in engine bays, avionics bays, and industrial control cabinets. |
| Junction-to-lead Rθ | 50°C/W - Enables reliable heat dissipation when leads are mounted ≥10 mm from component body. |
Pinout & Package
Package: DO-13 (DO-202AA), hermetically sealed metal-glass case with tin-lead plated external surfaces; cathode connected to case and marked by diode symbol on body; weight ≈1.4 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current return path | Connected to protected line; carries full surge current during clamping event. |
| Cathode (Lead 1 / Case) | Clamp reference and ground path | Electrically tied to metal case; must be soldered to low-impedance ground plane for effective energy diversion. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables precise DC bias compatibility-only conducts during positive transients on anode relative to cathode-ground. |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against IEC 61000-4-5 Class 1–4 secondary lightning surges with defined source impedances. |
| Hermetic DO-13 metal package | Provides long-term reliability in high-humidity, high-vibration, and radiation-exposed environments (e.g., airborne systems). |
| <100 ps response time | Prevents voltage overshoot beyond VC during nanosecond-scale ESD events per IEC 61000-4-2 Level 4 (15 kV air). |
| Inherent radiation hardness | Validated per Microsemi MicroNote 050-suitable for space-qualified and nuclear instrumentation applications without derating. |
Applications
| Aerospace Avionics Power Bus Protection | Industrial Motor Drive Control Signal Lines |
|---|---|
|
Use Scenario: Protecting 28 V DC power distribution buses in aircraft flight control computers from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy to ground during >100 V spikes lasting ≤1 ms. Use Value: Maintains bus voltage below 258 V during 1500 W surges, preventing latch-up or burnout of downstream DC-DC converters and FPGAs. |
Use Scenario: Shielding isolated encoder feedback lines in servo drives from EFT bursts generated by nearby contactor switching. IC Role / Device Role / Timing Role: Fast-response voltage clamp on differential RS-422 inputs exposed to 5 kHz burst noise per IEC 61000-4-4. Use Value: Limits common-mode transients to <258 V within 100 ps, preserving signal integrity and eliminating false position reporting. |
| Military Vehicle Data Link Interfaces | Energy Meter Communication Ports |
|
Use Scenario: Securing MIL-STD-1553B data bus stubs against induced lightning surges in armored vehicle electronics. IC Role / Device Role / Timing Role: Standoff-rated TVS placed at bus connector entry point to shunt surge current before reaching transceiver ICs. Use Value: Clamps 42 Ω source impedance IEC 61000-4-5 Class 2 surges (1 kV) to ≤258 V, ensuring transceiver survival per MIL-STD-461G CS117. |
Use Scenario: Hardening optical port and PLC communication lines in ANSI C12.20-certified revenue meters against utility grid switching transients. IC Role / Device Role / Timing Role: Primary overvoltage protector on AC-coupled modem interface lines operating at 120 V RMS. Use Value: Withstands repeated 146 V standoff and clamps 1 kV surges to 258 V, meeting ANSI C12.31 surge immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5664A | Tighter V(BR) tolerance (162–171 V vs. 162–187 V); same DO-13 package and electrical ratings. | Required for JANTXV-qualified programs where ±5% breakdown voltage control is mandated per MIL-PRF-19500/500. | Select 1N5664A when military qualification, tighter parametric control, or extended temperature validation is required. |
| SMCJ150A | Surface-mount SMC package; 150 V VWM; 243 V VC @ 6.2 A; same 1500 W PPP rating. | Used where PCB real estate is constrained and automated assembly is preferred; lacks hermetic seal and radiation hardness. | Choose SMCJ150A for commercial industrial designs prioritizing cost and layout density over hermeticity or radiation tolerance. |
Compared with 1N5664, the 1N5664A offers tighter V(BR) control for mission-critical military use, while the SMCJ150A trades hermetic reliability for surface-mount manufacturability-neither is pin-compatible due to differing packages and mechanical construction.
Availability
1N5664 is available at Aetrix Electronics and suitable for aerospace avionics, industrial motor control, military vehicle electronics, and smart metering applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N5664 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 (including legacy Microsemi assets) is a global semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N5664 belongs to Microchip's legacy high-power unidirectional TVS diode family, engineered specifically for ruggedized transient protection in safety-critical systems where hermetic packaging, wide temperature operation, and radiation tolerance are mandatory design requirements.
FAQ
What is the maximum clamping voltage of the 1N5664 under standard test conditions?
The 1N5664 exhibits a maximum clamping voltage (VC) of 258 V when subjected to its rated peak pulse current of 5.8 A using the 10/1000 µs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during surge events, ensuring downstream components remain within safe operating limits.
Is the 1N5664 suitable for IEC 61000-4-5 secondary lightning protection?
Yes, the 1N5664 is explicitly rated for IEC 61000-4-5 secondary lightning protection across multiple classes: Class 1 (42 Ω source) up to 1N5663A, Class 2 (12 Ω) up to 1N5651A, and Class 2 (2 Ω) up to 1N5642A. Its 146 V VWM and 258 V VC enable compliance in 28 V and 120 V system architectures when properly implemented with low-inductance grounding.
Does the 1N5664 have radiation hardness certification?
Yes, the 1N5664 possesses inherent radiation hardness validated per Microsemi MicroNote 050. This qualification stems from its hermetic DO-13 metal-glass construction and silicon process, making it suitable for deployment in low-earth orbit satellite subsystems, nuclear instrumentation, and high-altitude avionics where total ionizing dose (TID) resilience is required.
What is the thermal resistance specification for the 1N5664?
The 1N5664 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 parameter governs steady-state power dissipation limits and informs heatsinking strategy-derating begins above +125°C lead temperature, with 1 W DC dissipation permitted only at TL ≤ +125°C.
How does the 1N5664 differ from the plastic-packaged 1N6267 series?
The 1N5664 uses a hermetically sealed DO-13 metal-glass package, whereas the 1N6267 series employs plastic axial-leaded construction. This gives the 1N5664 superior moisture resistance, thermal stability, radiation hardness, and long-term reliability in extreme environments-key distinctions confirmed in Microchip's separate datasheets for each family.
1N5664 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):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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)
1N5664 FAQ
1.How can I place an order for 1N5664 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5664 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 1N5664 reliable?
The price and inventory of 1N5664 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5664 is usually 5 days.
3.What payment methods are accepted for 1N5664?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5664 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5664?
1N5664 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5664 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 1N5664?
For technical support, including 1N5664 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5664 requirements.
6.How does Aetrix verify that 1N5664 is sourced from the original manufacturer or authorized distributors?
All 1N5664 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 1N5664 meets industry standards.
7.What is the process for return or replacement of 1N5664?
All 1N5664 units undergo pre-shipment inspection (PSI). If there is an issue with 1N5664, 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 1N5664 part is unused and in its original packaging.
Return procedure for 1N5664:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5664 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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