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Microchip Technology 1N5657/TR
- Part No.:
- 1N5657/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5657/TR.pdf
- Description:
- TVS DIODE 81VWM 144VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:2,450
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Product details
Overview
1N5657/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 81.0 V standoff voltage (VWM), 90 V minimum breakdown voltage (V(BR)), and 144 V maximum clamping voltage (VC) at 10.4 A peak pulse current - used for secondary lightning protection in avionics and industrial control systems.
For engineers reviewing the 1N5657/TR datasheet, 1N5657/TR pinout, 1N5657/TR application, or 1N5657/TR equivalent, this device delivers sub-100 ps response time, radiation-hardened performance per MicroNote 050, and IEC 61000-4-2/-4-4/-4-5 compliance for ESD, EFT, and low-impedance surge environments.
Technical Context
The 1N5657/TR operates as a unidirectional avalanche diode, entering controlled breakdown above its 90 V minimum V(BR) to clamp transients while maintaining <5 µA standby current at 81.0 V VWM. Its DO-13 package provides 50 °C/W junction-to-lead thermal resistance and supports soldering up to 260 °C for 10 s.
It is specified for operation from –55 °C to +175 °C, with a temperature coefficient of 0.106 %/°C for V(BR), and delivers 1500 W non-repetitive peak pulse power under JEDEC-standard 10/1000 µs waveform conditions at 25 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 81.0 V - maximum continuous reverse operating voltage before avalanche onset; sets system-level DC bias margin. |
| V(BR) min | 90 V @ 1 mA - guaranteed avalanche initiation threshold; ensures predictable clamping onset. |
| VC @ IPP | 144 V @ 10.4 A - maximum clamped voltage during 10/1000 µs surge; defines worst-case voltage stress on protected circuitry. |
| PPP | 1500 W - peak pulse power handling capability; enables robust protection against IEC 61000-4-5 Class 1–4 surges. |
| Response time | <100 ps - near-instantaneous avalanche turn-on; critical for ESD (IEC 61000-4-2) and fast EFT (IEC 61000-4-4) suppression. |
| Package | DO-13 (DO-202AA) - hermetic metal-glass construction; provides radiation hardness and high-reliability mechanical integrity. |
| Operating temp | –55 °C to +175 °C - wide junction temperature range suitable for aerospace, military, and under-hood automotive use. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode connected to case and marked by diode symbol on body; weight ≈1.4 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Current entry terminal in forward bias; connected internally to semiconductor die anode region | Must be tied to lower-potential node (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode (Lead 1 / Case) | Current exit terminal in forward bias; electrically bonded to metal case | Case serves as cathode terminal - requires direct PCB mounting to grounded copper pour for optimal thermal and electrical performance. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Clamps only reverse transients above VWM; preserves forward-biased signal integrity in DC-coupled lines. |
| Hermetic DO-13 metal package | Enables operation at +175 °C and inherent radiation hardness per MicroNote 050 - validated for avionics and space-qualified subsystems. |
| 1500 W peak pulse power | Sustains IEC 61000-4-5 surge events up to 42 Ω source impedance (Class 1) without degradation or failure. |
| Sub-100 ps response | Prevents ESD-induced latch-up or gate oxide damage in sensitive CMOS interfaces before protection can activate. |
| TR tape-and-reel packaging | Enables automated through-hole insertion; complies with EIA-296 standard for volume manufacturing traceability. |
Applications
| Aerospace Avionics Power Bus Protection | Industrial PLC Input/Output Protection |
|---|---|
Use Scenario: Protecting 28 V DC power distribution buses in airborne flight control computers from induced RF and secondary lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode clamping transient overvoltage on main power rail. Use Value: Maintains bus integrity during IEC 61000-4-5 Class 1 surge (42 Ω source) with clamping limited to 144 V - well below 200 V system insulation rating. |
Use Scenario: Safeguarding 24 V digital input modules in factory automation PLCs against inductive switching spikes from solenoid valves and contactors. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed across input terminals to shunt energy before reaching optocoupler input stage. Use Value: Sub-100 ps response prevents false triggering or latch-up in microcontroller GPIOs during 8.3 ms half-sine surges up to 200 A. |
| Military Vehicle Data Link Protection | Medical Imaging Equipment Power Rails |
Use Scenario: Shielding RS-485 data lines and auxiliary 12 V logic rails in armored vehicle communication systems exposed to EMP-like transients. IC Role / Device Role / Timing Role: Primary transient suppressor on power and signal lines interfacing with MIL-STD-461G-compliant enclosures. Use Value: Hermetic DO-13 package ensures long-term reliability under thermal cycling (–55 °C to +175 °C) and vibration without seal degradation. |
Use Scenario: Securing high-voltage generator control rails in MRI and CT scanner subsystems where transient immunity directly impacts patient safety compliance. IC Role / Device Role / Timing Role: Final-stage TVS on isolated DC-DC converter outputs feeding FPGA-based timing controllers. Use Value: 1500 W pulse rating handles stored-energy discharge from large filter capacitors during fault conditions without catastrophic failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5657A/TR | Higher V(BR) tolerance: 90–99 V vs. 90–105 V for 1N5657/TR; tighter ±5% breakdown spec. | Preferred for precision clamping where consistent V(BR) across temperature is required (e.g., calibration-critical test equipment). | Select 1N5657A/TR when design requires guaranteed V(BR) ≤99 V at 1 mA and tighter parametric control. |
| SMCJ85A | Surface-mount SMC package; same VWM (85 V) and VC (144 V), but lower 1000 W PPP rating and plastic encapsulation. | Suitable for high-density PCBs but lacks radiation hardness and extended temperature capability of DO-13 metal package. | Choose SMCJ85A only for commercial-grade, space-constrained designs where hermeticity and >+150 °C operation are not required. |
Compared with 1N5657A/TR and SMCJ85A, the 1N5657/TR offers the broadest V(BR) range (90–105 V), full military-temperature support (–55 °C to +175 °C), and hermetic reliability - making it the sole choice for avionics, defense, and high-reliability industrial deployments requiring long-term stability under thermal and radiation stress.
Availability
1N5657/TR is available at Aetrix Electronics and suitable for aerospace avionics, industrial PLCs, military vehicle electronics, and medical imaging equipment requiring stable component supply with full traceability and long-lifecycle support.
Supply support for 1N5657/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 1N5657/TR belongs to Microchip's legacy JAN/JANTXV-qualified TVS diode family, engineered specifically for mission-critical transient suppression in environments where hermetic sealing, extreme temperature operation, and radiation tolerance are mandatory.
FAQ
What is the standoff voltage (VWM) specification for the 1N5657/TR?
The 1N5657/TR has a rated standoff voltage (VWM) of 81.0 V, meaning it remains nonconductive under continuous reverse bias up to this level. This value is selected to exceed typical 28 V or 48 V system operating voltages while providing sufficient margin before avalanche onset at 90 V minimum breakdown. The 1N5657/TR datasheet confirms VWM is guaranteed across –55 °C to +175 °C operating range.
Does the 1N5657/TR meet IEC 61000-4-5 surge immunity standards?
Yes, the 1N5657/TR is validated for IEC 61000-4-5 secondary lightning surge protection across multiple classes: Class 1 (42 Ω source) up to 1N5658A, Class 2 (12 Ω) up to 1N5651A, and Class 2 (2 Ω) up to 1N5642A. Its 1500 W peak pulse power and 144 V clamping voltage at 10.4 A ensure compliance when properly mounted with low-inductance grounding - as documented in Microchip's T4-LDS-0096 Rev. 3 datasheet.
Is the 1N5657/TR suitable for high-temperature environments like engine control units?
Yes, the 1N5657/TR is rated for continuous operation from –55 °C to +175 °C junction temperature, with thermal resistance of 50 °C/W junction-to-lead. Its hermetic DO-13 metal package maintains parameter stability and seal integrity under sustained thermal cycling - making it appropriate for under-hood automotive ECUs, turbine controller power supplies, and other high-temperature industrial applications where plastic-packaged alternatives fail.
How does the TR suffix affect the 1N5657/TR packaging and handling?
The "TR" suffix on 1N5657/TR indicates tape-and-reel packaging per EIA-296 standard, enabling automated through-hole insertion in high-volume manufacturing. Unlike bulk or ammo-pack variants, the 1N5657/TR arrives in moisture-barrier sealed reels with standardized carrier tape pitch and component orientation - supporting traceability, humidity control, and SMT-line compatibility for hybrid assembly processes.
What is the clamping behavior of the 1N5657/TR during an ESD event per IEC 61000-4-2?
The 1N5657/TR clamps ESD transients in less than 100 picoseconds, limiting peak voltage to ≤144 V at 10.4 A (10/1000 µs). While IEC 61000-4-2 specifies 8 kV contact discharge, the 1N5657/TR's fast response and low dynamic impedance ensure effective protection of downstream CMOS inputs - as confirmed by Microchip's application guidance in MicroNote 050 and T4-LDS-0096 testing data.
1N5657/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):
- 81V
- Voltage - Breakdown (Min):
- 90V
- Voltage - Clamping (Max) @ Ipp:
- 144V
- Current - Peak Pulse (10/1000µs):
- 10.4A
- 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
1N5657/TR FAQ
1.How can I place an order for 1N5657/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5657/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 1N5657/TR reliable?
The price and inventory of 1N5657/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5657/TR is usually 5 days.
3.What payment methods are accepted for 1N5657/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5657/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5657/TR?
1N5657/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5657/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 1N5657/TR?
For technical support, including 1N5657/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5657/TR requirements.
6.How does Aetrix verify that 1N5657/TR is sourced from the original manufacturer or authorized distributors?
All 1N5657/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 1N5657/TR meets industry standards.
7.What is the process for return or replacement of 1N5657/TR?
All 1N5657/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5657/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 1N5657/TR part is unused and in its original packaging.
Return procedure for 1N5657/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5657/TR Tags
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