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Vishay General Semiconductor - Diodes Division 1N6302A-E3/54
- Part No.:
- 1N6302A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6302A-E3/54.pdf
- Description:
- TVS DIODE 154VWM 246VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,190
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Product details
Overview
1N6302A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 171 V to 189 V breakdown voltage (VBR), 154 V maximum standoff voltage (VWM), 1500 W peak pulse power (10/1000 µs), 6.1 A peak pulse current (IPPM), and clamps transients to ≤246 V at rated surge. It is used in automotive power supply inputs, industrial PLC I/O protection, and telecom line interface circuits.
For engineers reviewing the 1N6302A-E3/54 datasheet, 1N6302A-E3/54 pinout, 1N6302A-E3/54 application, or 1N6302A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under standardized surge waveforms, thermal derating behavior, and direct alternatives with documented parameter differences.
Technical Context
The 1N6302A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transient overvoltages. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 100 A (per spec note for devices ≤1.5KE220A). The device is rated for 175 °C maximum junction temperature and supports 200 A non-repetitive forward surge current (8.3 ms half-sine).
Thermal design relies on its 15.4 °C/W junction-to-lead resistance and 75 °C/W junction-to-ambient rating, with power derating beginning above 25 °C ambient. It complies with JESD 22-B106 (275 °C solder dip, 10 s) and JESD 201 Class 1A whisker testing, and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V - defines minimum voltage at which avalanche conduction begins reliably at 1 mA test current |
| VWM | 154 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| IPPM | 6.1 A - peak current it safely clamps during a 10/1000 µs transient without failure |
| VC | ≤246 V - maximum clamped voltage across device at IPPM, directly limiting stress on downstream ICs |
| PPPM | 1500 W - peak transient power dissipation capability under standard 10/1000 µs waveform |
| TJ max. | +175 °C - enables operation in under-hood automotive or high-temperature industrial enclosures |
| RθJL | 15.4 °C/W - critical for estimating junction temperature rise when mounted on PCB copper pour or heatsinked leads |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - axial-lead, molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix); 0.375" (9.5 mm) lead length; UL 94 V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or lower-potential rail in unidirectional configuration; must be routed with low-inductance path for effective clamping |
| Cathode (banded end) | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., +12 V rail); avalanche conduction occurs when voltage exceeds VBR relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without degradation |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 3/4 surges |
| Sub-nanosecond response time | Clamps transients before sensitive downstream components (e.g., MCU I/O, CAN transceivers) experience overstress |
| AEC-Q101 qualification option (HE3 variant) | Validates suitability for automotive powertrain and chassis applications requiring extended temperature and lifetime validation |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off), improving clamping precision |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary shunt clamp placed between power rail and ground, conducting only during overvoltage events. Use Value: Limits rail voltage to ≤246 V during 10/1000 µs surges, preventing damage to PMICs and microcontrollers rated for 36 V absolute max. | Use Scenario: Safeguarding 24 V digital input modules from field-wiring induced surges and ESD in factory automation systems. IC Role / Device Role / Timing Role: Unidirectional TVS connected across input terminals to divert surge energy before reaching optocoupler or Schmitt trigger inputs. Use Value: Clamps transients within 1 ns, ensuring logic-level integrity and eliminating false triggering caused by >154 V spikes. |
| Telecom Line Interface Protection | DC Power Supply Output Protection |
Use Scenario: Shielding RS-485 transceiver bus lines from lightning-induced surges on outdoor cabling in base station equipment. IC Role / Device Role / Timing Role: Paired unidirectional TVS diodes (one per line) referenced to local ground, suppressing common-mode transients. Use Value: Withstands 6.1 A peak pulses while maintaining ≤246 V clamping, preserving signal integrity and preventing transceiver latch-up. | Use Scenario: Adding secondary overvoltage protection at the output of isolated DC/DC converters powering FPGAs or ADCs. IC Role / Device Role / Timing Role: Final-stage shunt suppressor placed immediately before load, acting as last-resort defense against internal regulator fault conditions. Use Value: Guarantees output voltage never exceeds 246 V even during catastrophic converter failure, protecting downstream 3.3 V or 5 V logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Lower PPPM (600 W), smaller SMB package (vs. axial 1.5KE), VBR = 200–222 V, VC = 292 V at 2.1 A | Surface-mount only; unsuitable for high-current through-hole designs or legacy board layouts | Select when space-constrained PCBs require SMT integration and surge levels remain ≤600 W |
| 1.5KE180A | Identical electrical specs and package; differs only in ordering code (no -E3/54 tape-and-reel designation) | No functional difference; same thermal, clamping, and surge performance | Choose for standard bulk packaging where tape-and-reel is not required for automated assembly |
Compared with 1N6302A-E3/54, SMBJ180A offers compact SMT fit but sacrifices 60% peak power handling and requires layout redesign, while 1.5KE180A provides identical protection performance in alternate packaging-making it a drop-in replacement where reel delivery is unnecessary.
Availability
1N6302A-E3/54 is available at Aetrix Electronics and suitable for automotive power input protection, industrial PLC I/O hardening, and telecom line interface circuits requiring stable component supply and full traceability.
Supply support for 1N6302A-E3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and AEC-Q qualification.
The 1N6302A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial control, and communications infrastructure.
FAQ
What is the breakdown voltage range of the 1N6302A-E3/54?
The 1N6302A-E3/54 has a guaranteed breakdown voltage (VBR) range of 171 V to 189 V at 1 mA test current, measured per JEDEC standard. This tight tolerance ensures consistent clamping onset across production lots and supports reliable system-level overvoltage margining in designs using the 1N6302A-E3/54.
Is the 1N6302A-E3/54 RoHS compliant and qualified for automotive use?
Yes, the 1N6302A-E3/54 carries the E3 suffix, confirming RoHS compliance and commercial-grade qualification. For automotive applications, Vishay offers the HE3 variant (e.g., 1.5KE180AHE3_B), which is AEC-Q101 qualified-while the 1N6302A-E3/54 itself is not AEC-Q101 certified but shares identical electrical and thermal characteristics.
What is the maximum clamping voltage of the 1N6302A-E3/54 under surge conditions?
The 1N6302A-E3/54 clamps to a maximum of 246 V when subjected to its rated 6.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 7 in Vishay document 88301 and defines the upper voltage limit imposed on protected circuitry during transient events.
How does the 1N6302A-E3/54 differ from the 1.5KE180A part number?
The 1N6302A-E3/54 and 1.5KE180A are electrically and physically identical devices-same VBR, VC, package, and thermal specs. The difference lies solely in packaging and ordering: 1N6302A-E3/54 denotes 1.5KE180A supplied in 13" paper tape and reel (54 mm carrier width, 1400 units/reel), whereas 1.5KE180A refers to the base part without packaging specification.
What is the thermal resistance from junction to lead for the 1N6302A-E3/54?
The 1N6302A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as specified in Vishay document 88301. This parameter is essential for calculating junction temperature rise when the device conducts surge current, especially when leads are soldered to copper pours or heatsinked PCB traces.
1N6302A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- 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:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6302A-E3/54 FAQ
1.How can I place an order for 1N6302A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6302A-E3/54 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 1N6302A-E3/54 reliable?
The price and inventory of 1N6302A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6302A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6302A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6302A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6302A-E3/54?
1N6302A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6302A-E3/54 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 1N6302A-E3/54?
For technical support, including 1N6302A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6302A-E3/54 requirements.
6.How does Aetrix verify that 1N6302A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6302A-E3/54 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 1N6302A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6302A-E3/54?
All 1N6302A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6302A-E3/54, 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 1N6302A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6302A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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