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Microchip Technology 1N5664A/TR
- Part No.:
- 1N5664A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5664A/TR.pdf
- Description:
- TVS DIODE 154VWM 246VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:8,981
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Product details
Overview
1N5664A/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 146 V standoff voltage (VWM), 162 V minimum breakdown voltage (V(BR)), and 246 V maximum clamping voltage (VC) at 5.8 A peak pulse current. It is used for secondary lightning protection in avionics and industrial control systems per IEC61000-4-5 with 42 Ω source impedance (Class 1–4).
For engineers reviewing the 1N5664A/TR datasheet, 1N5664A/TR pinout, 1N5664A/TR application, or 1N5664A/TR equivalent, this device serves as a high-reliability, through-hole TVS solution for ESD/EFT immunity (IEC61000-4-2/-4-4), inductive switching transient suppression, and radiation-hardened environments requiring -55°C to +175°C operation and hermetic sealing.
Technical Context
This unidirectional TVS operates in avalanche breakdown during transients, clamping within <100 ps while maintaining a low leakage current of ≤5 µA at 146 V standoff. Its DO-13 package provides 50°C/W junction-to-lead thermal resistance and supports forward surge current up to 200 A (8.3 ms half-sine) at 25°C ambient.
The device exhibits a temperature coefficient of breakdown voltage (αV(BR)) of 0.108 %/°C and is qualified to MIL-PRF-19500/500 for JANTXV-level reliability when ordered with appropriate prefix - though 1N5664A/TR itself is the commercial tape-and-reel variant with cathode-connected case polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 10/1000 µs - sustains high-energy surges without failure in IEC61000-4-5 Class 4 test conditions. |
| Standoff Voltage (VWM) | 146 V - ensures non-conduction during normal 120–150 VDC system operation while allowing margin before clamping. |
| Breakdown Voltage (V(BR)) | 162–171 V @ 1 mA - defines precise avalanche onset threshold for predictable transient response. |
| Clamping Voltage (VC) | 246 V @ 5.8 A - limits downstream voltage stress to safe levels for 200 V-rated circuitry during surge events. |
| Response Time | <100 ps - enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4). |
| Operating Temperature | -55°C to +175°C - supports deployment in engine compartments, avionics bays, and industrial motor drives. |
| Package | DO-13 (DO-202AA) - hermetically sealed metal-glass construction with tin-lead plating for solderability and long-term reliability. |
Pinout & Package
DO-13 (DO-202AA) package: hermetically sealed metal case with glass seal, cathode connected to case, axial leads, weight ≈1.4 g. Polarity marked by diode symbol on body; lead 1 = cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point | Connected to protected line; carries full surge current into avalanche region during overvoltage event. |
| Cathode (Lead 1 / Case) | Reference and return path | Internally bonded to metal case; must be tied to system ground plane for effective clamping and thermal dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables DC-biased line protection (e.g., +13.8 V aircraft buses) without reverse conduction during normal operation. |
| 1500 W peak pulse rating | Meets IEC61000-4-5 Level 4 (4 kV, 42 Ω source) for secondary lightning in airborne and rail applications. |
| Hermetic DO-13 metal package | Provides immunity to moisture ingress and outgassing in vacuum or high-humidity environments (e.g., satellite payloads). |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for space-qualified subsystems without additional shielding. |
| Tape-and-reel packaging (TR suffix) | Enables automated through-hole insertion with EIA-296 compliance; eliminates manual handling and improves traceability. |
Applications
| Aircraft Power Distribution | Industrial Motor Drive Controls |
|---|---|
Use Scenario: Protection of 28 VDC bus wiring against load dump and inductive kickback from solenoid actuators in flight control surfaces. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient energy directly at bus entry points to prevent latch-up in upstream DC-DC converters. Use Value: Withstands 200 A forward surge (8.3 ms) and maintains <5 µA leakage at 28 V, ensuring no parasitic drain on battery-backed systems. |
Use Scenario: Shielding PLC I/O modules from transients induced by contactor switching in HVAC and pump control cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across relay coil terminals to absorb stored inductive energy and limit back-EMF spikes. Use Value: Clamps to 246 V within 100 ps, preventing damage to 300 V-rated optocouplers and microcontroller GPIOs exposed to 1 kV surge tests. |
| Avionics Data Bus Interfaces | Railway Signaling Equipment |
Use Scenario: Guarding ARINC 429 receivers against ESD and RF-induced transients during maintenance or antenna coupling events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed inline with data lines to shunt ESD pulses while preserving signal integrity. Use Value: Achieves IEC61000-4-2 ±15 kV air discharge compliance without distorting 100 kHz Manchester-encoded signals due to sub-100 ps response. |
Use Scenario: Securing 75 VDC trackside signaling circuits against induced surges from nearby traction currents and lightning coupling. IC Role / Device Role / Timing Role: High-energy TVS mounted at cabinet entry points to divert 4 kV/42 Ω IEC61000-4-5 surges away from safety-critical relay logic boards. Use Value: Hermetic DO-13 construction ensures long-term stability in outdoor enclosures subject to condensation and salt fog exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ150A | Surface-mount SMC package; 150 V VWM; same 1500 W rating but lower thermal resistance (junction-to-ambient). | Requires PCB redesign for SMT placement; unsuitable for through-hole legacy avionics assemblies. | Select when board space is constrained and reflow compatibility is available. |
| 1N5664 | Same electrical specs but in bulk (non-TR) packaging; lacks EIA-296 tape-and-reel compliance. | Not optimized for automated insertion; requires manual loading or vibratory bowl feeders. | Select only for low-volume prototyping or repair where reel logistics are unnecessary. |
Compared with SMCJ150A and 1N5664, the 1N5664A/TR uniquely combines hermetic DO-13 reliability, tape-and-reel automation readiness, and military-grade thermal/radiation performance - making it the preferred choice for high-integrity through-hole surge protection where long-term field stability is mandatory.
Availability
1N5664A/TR is available at Aetrix Electronics and suitable for aircraft power distribution, industrial motor drive controls, avionics data bus interfaces, and railway signaling equipment requiring stable component supply across extended product lifecycles.
Supply support for 1N5664A/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-hardened components for aerospace, defense, and industrial markets.
The 1N56xxA series was developed to deliver military-qualified transient suppression in hermetic through-hole packages for mission-critical systems where plastic alternatives lack environmental robustness or long-term reliability assurance.
FAQ
What is the standoff voltage (VWM) specification for the 1N5664A/TR?
The 1N5664A/TR has a rated standoff voltage (VWM) of 146 V, meaning it remains non-conductive under continuous reverse bias up to this level. This value is selected to provide sufficient margin above typical 120–130 VDC system operating voltages while ensuring reliable clamping onset during transients. The 1N5664A/TR's VWM is confirmed in the Electrical Characteristics table on page 4 of the T4-LDS-0096 Rev. 3 datasheet.
Does the 1N5664A/TR meet IEC61000-4-5 for secondary lightning protection?
Yes, the 1N5664A/TR is validated for IEC61000-4-5 secondary lightning protection across multiple classes: Class 1–4 with 42 Ω source impedance, Class 1–3 with 12 Ω, and Class 2–3 with 2 Ω. Its 1500 W peak pulse rating and 246 V clamping voltage at 5.8 A enable compliance with 4 kV test levels in real-world avionics and rail installations. This capability is explicitly documented in the Applications/Benefits section of the datasheet.
Is the 1N5664A/TR suitable for radiation-intensive environments such as spacecraft?
Yes, the 1N5664A/TR is inherently radiation-hardened per Microsemi MicroNote 050, a key qualification for space-qualified subsystems. Its hermetic DO-13 metal package prevents parametric shift under total ionizing dose (TID) exposure, and its unidirectional structure avoids latch-up risks in single-event effects (SEE) scenarios. These attributes make the 1N5664A/TR applicable in satellite power regulation and payload interface circuits.
What does the "TR" suffix indicate in 1N5664A/TR?
"TR" denotes tape-and-reel packaging per EIA-296 standards, enabling automated through-hole insertion in high-volume manufacturing. The 1N5664A/TR is supplied in industry-standard reels with proper orientation, spacing, and cover tape - eliminating manual handling, improving traceability, and supporting JIT logistics. This differs from the bulk-packaged 1N5664A, which lacks reel compliance.
How does the thermal performance of the 1N5664A/TR compare to surface-mount alternatives?
The 1N5664A/TR offers 50°C/W junction-to-lead thermal resistance when mounted with 0.375″ (10 mm) lead length, significantly better than typical SMT TVS devices relying on PCB copper for heat spreading. This allows higher sustained surge duty cycles in thermally constrained enclosures. Its DO-13 metal case also provides direct mechanical mounting paths for heatsinking - a capability not available with SMCJ or SMCG packages.
1N5664A/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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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
1N5664A/TR FAQ
1.How can I place an order for 1N5664A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5664A/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 1N5664A/TR reliable?
The price and inventory of 1N5664A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5664A/TR is usually 5 days.
3.What payment methods are accepted for 1N5664A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5664A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5664A/TR?
1N5664A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5664A/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 1N5664A/TR?
For technical support, including 1N5664A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5664A/TR requirements.
6.How does Aetrix verify that 1N5664A/TR is sourced from the original manufacturer or authorized distributors?
All 1N5664A/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 1N5664A/TR meets industry standards.
7.What is the process for return or replacement of 1N5664A/TR?
All 1N5664A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5664A/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 1N5664A/TR part is unused and in its original packaging.
Return procedure for 1N5664A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5664A/TR Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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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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