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Microchip Technology 1N5658A
- Part No.:
- 1N5658A
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5658A.pdf
- Description:
- TVS DIODE 94VWM 152VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:7,734
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Product details
Overview
1N5658A from Microchip Technology is a unidirectional transient voltage suppressor (TVS) diode in a hermetically sealed DO-13 metal package, designed for high-energy surge protection in aerospace and industrial systems. It features a 94.0 V rated standoff voltage (VWM), 105 V minimum breakdown voltage (V(BR)), 152 A peak pulse current (IPP), and clamps transients to ≤158 V at 10/1000 µs waveform - enabling robust secondary lightning protection per IEC61000-4-5 with 12 Ω source impedance.
For engineers reviewing the 1N5658A datasheet, 1N5658A pinout, 1N5658A application, or 1N5658A equivalent, this device is selected for critical overvoltage protection where sub-100 ps response time, radiation hardness, and military-grade reliability under -55°C to +175°C operation are required in avionics power rails, motor drive control inputs, and MIL-STD-704 aircraft electrical systems.
Technical Context
The 1N5658A operates as a unidirectional avalanche diode, entering controlled breakdown above its 94.0 V standoff voltage to clamp fast transients while maintaining low leakage (<5 µA at VWM). Its DO-13 package provides hermetic sealing and direct cathode-to-case thermal conduction, supporting junction-to-lead thermal resistance of 50°C/W at 10 mm lead length.
It delivers 1500 W non-repetitive peak pulse power at 25°C with 10/1000 µs waveform, and exhibits a temperature coefficient of breakdown voltage (αV(BR)) of +0.107 %/°C - ensuring predictable voltage drift across its full operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 94.0 V - maximum continuous reverse operating voltage before avalanche onset; sets system-level DC rail compatibility. |
| V(BR) min | 105 V @ 1 mA - guaranteed minimum breakdown threshold, defining precise turn-on margin above VWM. |
| VC @ IPP | 158 V @ 152 A - clamping voltage during 10/1000 µs surge; determines worst-case voltage seen by protected circuitry. |
| PPP | 1500 W - peak pulse power handling capability; enables protection against IEC61000-4-5 Class 1 surges with 12 Ω source. |
| Response Time | <100 ps - enables effective suppression of ESD (IEC61000-4-2) and EFT (IEC61000-4-4) events. |
| Operating Temp | -55°C to +175°C - supports deployment in engine-mounted avionics, downhole tools, and high-temp industrial controls. |
| Package | DO-13 (DO-202AA) - hermetically sealed metal-glass case with cathode connected to case; enables high-reliability through-hole mounting. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to the metal case and marked by a diode symbol on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Current entry point during forward conduction | Connected to protected circuit's positive rail or signal line; must be routed with low-inductance path to ground reference. |
| Cathode (Lead 1 / Case) | Current exit point during reverse avalanche | Electrically tied to metal case; requires low-impedance mechanical and thermal connection to system ground plane for optimal clamping and heat dissipation. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional TVS architecture | Enables precise overvoltage clamping on positive-going transients while blocking reverse leakage below VWM. |
| Hermetic DO-13 metal package | Provides immunity to moisture ingress and long-term parameter stability in harsh environments including aviation and space-qualified systems. |
| Radiation hardness | Inherently radiation-tolerant per Microsemi MicroNote 050 - suitable for avionics and satellite subsystems without additional shielding. |
| MIL-PRF-19500/500 qualification option | JANTXV prefix available (e.g., JANTXV1N5658A) for tighter tolerances and extended screening - meets defense/aerospace procurement requirements. |
Applications
| Aircraft Power Bus Protection | Industrial Motor Drive Control Inputs |
|---|---|
Use Scenario: Protecting 28 VDC and 115 VAC-derived DC bus lines in commercial and military aircraft against load dump, inductive switching, and secondary lightning surges. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp transients within 100 ps and limit voltage to ≤158 V. Use Value: Enables compliance with RTCA/DO-160 Section 22 lightning-induced transient requirements using a single discrete component with no active control logic. |
Use Scenario: Safeguarding PLC digital input modules and servo amplifier command interfaces from back-EMF spikes generated by contactor switching and solenoid de-energization. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted directly at connector entry point to absorb 1500 W surges before they reach isolation barriers or microcontroller GPIOs. Use Value: Eliminates need for RC snubbers or optocoupler-based isolation in cost-sensitive industrial controllers while maintaining IEC61000-4-4 EFT immunity. |
| Avionics Sensor Signal Conditioning | MIL-STD-704 Aircraft Electrical System Interface |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in flight control computers from RF-induced transients and electrostatic discharge. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) TVS placed across differential sensor lines to suppress common-mode surges without affecting signal integrity. Use Value: Maintains <1 LSB error in 16-bit ADC front-ends while providing IEC61000-4-2 ±15 kV air discharge protection. |
Use Scenario: Interface protection for power conversion units accepting MIL-STD-704-compliant 115 VAC/400 Hz or 270 VDC inputs subject to voltage sags, spikes, and lightning coupling. IC Role / Device Role / Timing Role: Primary surge limiter on DC bus input stage, coordinated with upstream fuses and downstream MOVs to meet Category A/B/C/D surge profiles. Use Value: Achieves IEC61000-4-5 Level 4 (4 kV, 12 Ω source) immunity with validated clamping performance across -55°C to +125°C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ93A | Surface-mount SMC package; 93 V VWM; 1500 W PPP; 150 A IPP; 156 V VC - slightly lower clamping voltage but lacks hermetic seal and radiation tolerance. | Preferred for high-volume PCB assembly where automated placement and space constraints outweigh military environmental requirements. | Select when board-level surge protection suffices and DO-13 through-hole mounting is not mandated by system reliability or qualification standards. |
| 1N5657A | Lower VWM (89.2 V); 99 V V(BR) min; 158 V VC @ 144 A IPP - same DO-13 package, hermetic construction, and radiation hardness, but 5 V lower standoff rating. | Suitable for 80–90 V nominal systems where tighter voltage margin is acceptable, such as legacy avionics with aging power supplies. | Choose when matching existing 1N5657A BOMs or designing for lower-voltage DC distribution networks requiring identical form-factor and qualification. |
Compared with SMCJ93A and 1N5657A, the 1N5658A offers the highest standoff voltage in its DO-13 family while retaining full military qualification path and radiation hardness - making it the only option among the three for new designs targeting 94 V+ nominal rails in certified airborne equipment.
Availability
1N5658A is available at Aetrix Electronics and suitable for aircraft power bus protection, industrial motor drive control inputs, avionics sensor signal conditioning, and MIL-STD-704 aircraft electrical system interface applications requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for 1N5658A 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 1N5658A belongs to Microchip's legacy JAN/JANTXV-qualified TVS diode family, engineered specifically for mission-critical overvoltage protection in avionics, ground vehicle electronics, and space-qualified subsystems where hermeticity and extreme temperature resilience are non-negotiable.
FAQ
What is the maximum clamping voltage of the 1N5658A under standard 10/1000 µs surge conditions?
The 1N5658A has a maximum clamping voltage (VC) of 158 V when subjected to its rated peak pulse current of 152 A under the 10/1000 µs waveform. This value is measured at 25°C and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings. The 1N5658A achieves this clamping performance while maintaining a 94.0 V standoff voltage, offering a well-controlled 14 V margin between VWM and VC.
Does the 1N5658A meet IEC61000-4-5 requirements for secondary lightning protection?
Yes, the 1N5658A is explicitly rated for secondary lightning protection per IEC61000-4-5 with a 12 Ω source impedance at Class 1 level (up to 4 kV), as confirmed in the official datasheet's Applications/Benefits section. Its 1500 W peak pulse power rating and 152 A IPP enable reliable energy absorption under this test profile. The 1N5658A is also validated for ESD (IEC61000-4-2) and EFT (IEC61000-4-4) protection, making it a single-component solution for multi-threat immunity in avionics and industrial control systems.
Is the 1N5658A available in a military-qualified version?
Yes, the 1N5658A is the commercial "A" suffix variant, and military-qualified versions are available by adding the appropriate prefix: JAN1N5658A, JANTX1N5658A, or JANTXV1N5658A. These variants comply with MIL-PRF-19500/500 and undergo extended screening for temperature cycling, hermeticity, and parameter limits - essential for defense and aerospace programs requiring traceable qualification data. The base 1N5658A itself is not qualified, but the JANTXV variant is the most commonly specified for flight-critical applications.
What is the thermal resistance specification for the 1N5658A, and how does it affect layout design?
The 1N5658A has a junction-to-lead thermal resistance (RθJL) of 50°C/W when measured at 10 mm (0.375 in) from the case, per the datasheet's Maximum Ratings table. This means that for every watt of transient power dissipated, the junction temperature rises 50°C above the lead temperature. Layout must ensure low-thermal-resistance mechanical bonding of the cathode (case) to a large copper ground plane or heatsink - especially important in repetitive surge scenarios. FR4 board mounting yields higher RθJA (110°C/W), so lead-attached heatsinking is strongly recommended for sustained duty cycles.
How does the 1N5658A differ from the plastic-packaged 1N6267–1N6303A series?
The 1N5658A uses a hermetically sealed DO-13 metal-glass package, whereas the 1N6267–1N6303A series employs plastic axial-leaded packages. This gives the 1N5658A superior moisture resistance, long-term parameter stability, and inherent radiation hardness - critical for avionics and space applications. While both families share similar electrical specs (e.g., 1500 W PPP), only the 1N5658A meets MIL-PRF-19500/500 and is listed for use in airborne systems per Microsemi MicroNote 050. Plastic variants are restricted to commercial-grade industrial use.
1N5658A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- DO-13
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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
1N5658A FAQ
1.How can I place an order for 1N5658A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5658A 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 1N5658A reliable?
The price and inventory of 1N5658A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5658A is usually 5 days.
3.What payment methods are accepted for 1N5658A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5658A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5658A?
1N5658A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5658A 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 1N5658A?
For technical support, including 1N5658A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5658A requirements.
6.How does Aetrix verify that 1N5658A is sourced from the original manufacturer or authorized distributors?
All 1N5658A 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 1N5658A meets industry standards.
7.What is the process for return or replacement of 1N5658A?
All 1N5658A units undergo pre-shipment inspection (PSI). If there is an issue with 1N5658A, 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 1N5658A part is unused and in its original packaging.
Return procedure for 1N5658A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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