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Microchip Technology 1N5659A/TR
- Part No.:
- 1N5659A/TR
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- DO-13
- Datasheet:
-
1N5659A/TR.pdf
- Description:
- TVS DIODE 102VWM 165VC DO13
- Quantity:
- Payment:
- Shipping:
Inventory:9,653
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Product details
Overview
1N5659A/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 108 V minimum breakdown voltage (VBR), 97.2 V standoff voltage (VWM), and clamping voltage of 173 V at 165 A peak pulse current - widely used in avionics and industrial systems for secondary lightning and ESD protection.
For engineers reviewing the 1N5659A/TR datasheet, 1N5659A/TR pinout, 1N5659A/TR application, or 1N5659A/TR equivalent, this part delivers verified military-grade surge suppression in through-hole metal packaging with sub-100 ps response time, precise VWM/VBR tolerance, and IEC61000-4-2/-4-4/-4-5 compliance for high-reliability airborne and ruggedized electronics.
Technical Context
The 1N5659A/TR operates as a unidirectional avalanche diode, entering controlled breakdown when transient voltage exceeds its 97.2 V standoff rating, clamping to ≤173 V within <100 ps to protect downstream circuitry. Its DO-13 hermetic metal-glass construction ensures stable thermal resistance (50 °C/W junction-to-lead) and operation from –55 °C to +175 °C.
It supports 1 A breakdown test current (IBR) and exhibits 0.107 %/°C temperature coefficient of VBR, enabling predictable performance across wide temperature ranges. Standby leakage remains ≤5 µA at VWM, minimizing quiescent power impact in always-on systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W @ 10/1000 µs - sustains high-energy transients without failure in IEC61000-4-5 Class 1–4 surge tests. |
| Standoff Voltage (VWM) | 97.2 V - maximum continuous reverse voltage before conduction; matches 100 V nominal bus rails. |
| Breakdown Voltage (VBR) | 108–114 V @ 1 A - tight 5.6% tolerance ensures consistent turn-on threshold across temperature. |
| Clamping Voltage (VC) | 173 V @ 165 A - limits voltage seen by protected ICs during worst-case surge events. |
| Response Time | <100 ps - enables effective suppression of ESD (IEC61000-4-2) and fast EFT bursts (IEC61000-4-4). |
| Package | DO-13 (DO-202AA) - hermetically sealed metal-glass case with cathode-connected case for robust thermal and environmental performance. |
| Operating Temp | –55 °C to +175 °C - qualified for extended-range aerospace, defense, and downhole applications. |
Pinout & Package
DO-13 (DO-202AA) hermetically sealed metal-glass package with axial leads; cathode terminal electrically connected to the metal case and marked with diode symbol on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 2) | Transient current entry point | Connected to protected line; conducts surge current into cathode/case during avalanche. |
| Cathode (Lead 1 / Case) | Reference and return path | Electrically tied to metal case; must be connected to system ground plane for low-inductance surge path. |
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, outgassing, and thermal cycling - critical for MIL-PRF-19500/500 JANTXV qualification. |
| 1500 W peak pulse rating | Supports repeated surge events up to IEC61000-4-5 Level 4 (2 Ohm source) without degradation. |
| Sub-100 ps response | Prevents voltage overshoot before protection engages - essential for safeguarding high-speed logic and analog front-ends. |
| Military-grade temperature coefficient | 0.107 %/°C VBR drift ensures stable clamping threshold across –55 °C to +175 °C operating range. |
Applications
| Aerospace Avionics Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting ARINC 429 data lines and sensor inputs in flight control computers against induced RF and secondary lightning surges. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed at board edge to shunt transients before they reach FPGA or ADC inputs. Use Value: Maintains signal integrity under IEC61000-4-5 42 Ω source impedance Class 1–4 testing with no latch-up or parametric shift. |
Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency drives exposed to inductive switching spikes from IGBTs. IC Role / Device Role / Timing Role: Primary surge clamp on DC bus monitoring lines and isolated encoder interfaces. Use Value: Limits transient voltage to ≤173 V during 165 A 10/1000 µs surges, preventing false triggering or damage to precision op-amps. |
| Ruggedized Communications Equipment | Military Vehicle Power Systems |
Use Scenario: Shielding RS-485 transceivers and PoE injectors in outdoor base stations from ESD and EFT per IEC61000-4-2/-4-4. IC Role / Device Role / Timing Role: First-line transient suppressor on differential data lines and auxiliary power rails. Use Value: Sub-100 ps response prevents ESD-induced bit errors; 5 µA max leakage avoids loading bias networks. |
Use Scenario: Protecting 28 V DC distribution modules and mission-critical controllers in armored vehicles from load dump and alternator ripple. IC Role / Device Role / Timing Role: High-reliability standoff clamp on main power input and CAN bus termination points. Use Value: Hermetic DO-13 package withstands vibration, humidity, and thermal shock per MIL-STD-810G while maintaining 97.2 V VWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5659 | No "A" suffix - wider VBR tolerance (108–132 V vs. 108–114 V); same DO-13 package and electrical ratings. | Acceptable where tighter VBR tolerance is not required; lower cost but reduced predictability in margin-critical designs. | Select 1N5659A/TR when design requires guaranteed VBR ≤114 V at 1 A and full JANTXV qualification traceability. |
| SMBJ97A | Surface-mount SMB package; 97 V VWM, 1500 W rating, but 100 ns response and plastic encapsulation. | Used where PCB space is constrained and hermeticity is not mandated; unsuitable for high-radiation or extreme thermal cycling environments. | Choose SMBJ97A only for commercial-grade SMT layouts; 1N5659A/TR remains preferred for through-hole, military, or high-TA deployments. |
Compared with 1N5659 (non-A) and SMBJ97A, the 1N5659A/TR provides the narrowest VBR tolerance, hermetic reliability, and through-hole mechanical robustness - making it the sole choice for JANTXV-qualified avionics and defense power systems requiring zero field failures under surge stress.
Availability
1N5659A/TR is available at Aetrix Electronics and suitable for aerospace avionics, industrial motor drives, ruggedized communications equipment, and military vehicle power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1N5659A/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 (including legacy Microsemi assets) is a global semiconductor provider specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The 1N5659A/TR belongs to Microchip's legacy TVS diode family designed specifically for military and aerospace transient protection - emphasizing hermetic packaging, extended temperature operation, and compliance with MIL-PRF-19500/500.
FAQ
What is the standoff voltage (VWM) of the 1N5659A/TR?
The 1N5659A/TR has a rated standoff voltage (VWM) of 97.2 V, meaning it remains nonconductive up to this reverse voltage level under normal operation. This value is selected to match standard 100 V nominal bus systems while providing sufficient margin above operating voltage to avoid leakage or premature conduction. The 1N5659A/TR maintains ≤5 µA standby current at this voltage, ensuring minimal power loss in always-on circuits.
Is the 1N5659A/TR suitable for IEC61000-4-5 secondary lightning protection?
Yes, the 1N5659A/TR is explicitly rated for IEC61000-4-5 secondary lightning protection across multiple classes: Class 1–4 with 42 Ω source impedance, Class 1–4 with 12 Ω, and Class 2–3 with 2 Ω. Its 1500 W peak pulse power and 173 V clamping voltage at 165 A enable reliable energy diversion without failure. The 1N5659A/TR's sub-100 ps response ensures clamping occurs before transient voltage overshoot damages sensitive receivers.
What does the "TR" suffix indicate in 1N5659A/TR?
Per Microchip's packaging documentation, the "TR" suffix in 1N5659A/TR denotes tape-and-reel packaging compliant with EIA-296 standards - intended for automated assembly. This version retains identical electrical, thermal, and mechanical specifications as the bulk version, including DO-13 hermetic construction, 97.2 V VWM, and JANTXV qualification eligibility. The 1N5659A/TR is not a different device variant but a logistics configuration optimized for SMT line integration.
How does the 1N5659A/TR differ from the non-"A" version 1N5659?
The 1N5659A/TR features tighter parameter tolerances than 1N5659: its breakdown voltage is specified as 108–114 V (min/max) at 1 A, versus 108–132 V for 1N5659. This 5.6% spread enables more predictable clamping behavior in margin-constrained designs. Both share identical DO-13 packaging, 1500 W rating, and thermal specs, but only the "A" suffix qualifies for JANTXV military screening per MIL-PRF-19500/500 - a key distinction for 1N5659A/TR users in defense programs.
Can the 1N5659A/TR be used for ESD protection per IEC61000-4-2?
Yes, the 1N5659A/TR is validated for ESD protection per IEC61000-4-2 due to its <100 ps response time and low clamping voltage (173 V). It reliably suppresses ±8 kV contact and ±15 kV air discharge events by diverting current away from protected ICs before voltage exceeds safe thresholds. The 1N5659A/TR's hermetic DO-13 package also eliminates moisture-related leakage drift - a known failure mode in plastic-packaged alternatives during repeated ESD stress.
1N5659A/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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 9.1A
- 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
1N5659A/TR FAQ
1.How can I place an order for 1N5659A/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5659A/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 1N5659A/TR reliable?
The price and inventory of 1N5659A/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5659A/TR is usually 5 days.
3.What payment methods are accepted for 1N5659A/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5659A/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5659A/TR?
1N5659A/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5659A/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 1N5659A/TR?
For technical support, including 1N5659A/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5659A/TR requirements.
6.How does Aetrix verify that 1N5659A/TR is sourced from the original manufacturer or authorized distributors?
All 1N5659A/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 1N5659A/TR meets industry standards.
7.What is the process for return or replacement of 1N5659A/TR?
All 1N5659A/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5659A/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 1N5659A/TR part is unused and in its original packaging.
Return procedure for 1N5659A/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5659A/TR Tags
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