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Vishay General Semiconductor - Diodes Division 1N6303A-E3/54
- Part No.:
- 1N6303A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6303A-E3/54.pdf
- Description:
- TVS DIODE 171VWM 274VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:1,746
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Product details
Overview
1N6303A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in DC power rails and signal lines. It features a 190 V to 210 V breakdown voltage (VBR), 171 V maximum standoff voltage (VWM), 274 V clamping voltage at 5.5 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs and ICs in industrial motor drives and telecom power supplies.
For engineers reviewing the 1N6303A-E3/54 datasheet, 1N6303A-E3/54 pinout, 1N6303A-E3/54 application, or 1N6303A-E3/54 equivalent, this part delivers verified clamping performance, RoHS-compliant matte tin leads, JEDEC 1.5KE package compatibility, and AEC-Q101 qualification options - critical for automotive-grade transient suppression design validation.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse rating is defined per 10/1000 µs waveform with 0.01% duty cycle, and it maintains stable clamping up to 175 °C junction temperature.
It exhibits a 0.108 %/°C temperature coefficient of VBR, ensuring predictable voltage drift over temperature, and supports 200 A non-repetitive forward surge current (8.3 ms half-sine). The device is rated for 6.5 W steady-state power dissipation on an infinite heatsink at 75 °C lead temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 190 V / 210 V - ensures reliable conduction onset above normal operating voltage while avoiding false triggering |
| VWM | 171 V - maximum continuous reverse working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 274 V - clamped voltage during 5.5 A 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 1500 W - peak transient energy absorption capability under standardized surge conditions |
| IPPM | 5.5 A - maximum non-repetitive peak pulse current supported at rated clamping voltage |
| TJ max. | +175 °C - enables operation in high-temperature environments such as engine compartments or enclosed power modules |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports efficient heat transfer to PCB copper or heatsink |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body with matte tin-plated leads, UL 94 V-0 rated, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point during surge conduction | Connected to protected circuit ground or low-side return path; polarity-marked end is cathode |
| Cathode | Reverse-biased terminal during normal operation; clamping node during overvoltage | Color-banded end; connects to line being protected (e.g., 24 V rail or RS-485 bus); defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable long-term reliability and low leakage (<1 µA at VWM) across temperature and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation |
| Clamping response time <1 ns | Engages before sensitive logic or gate drivers experience damaging overvoltage transients |
| AEC-Q101 qualified variants available | Supports automotive subsystems requiring certified component reliability (e.g., body control modules, ADAS power rails) |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance and J-STD-002 solderability standards for automated assembly |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
Use Scenario: Protection of IGBT gate drivers and DC bus sensing circuits against switching-induced voltage spikes and lightning-induced surges on 48 V or 100 V rails. IC Role / Device Role: Unidirectional TVS placed between gate driver output and ground, or across DC bus and chassis ground. Use Value: Clamps transients to ≤274 V within nanoseconds, preventing gate oxide rupture in 650 V IGBTs and maintaining system uptime in factory automation. |
Use Scenario: Input-stage surge suppression on AC/DC rectified outputs feeding PoE injectors or base station RF amplifiers. IC Role / Device Role: Primary overvoltage clamp on +48 V telecom distribution bus upstream of DC-DC converters. Use Value: Absorbs 1500 W surges without failure, preserving converter efficiency and meeting GR-1089-CORE lightning immunity requirements. |
| Automotive Body Control Modules | Consumer Appliance Power Boards |
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and jump-start transients in 12 V systems. IC Role / Device Role: Unidirectional TVS connected between LIN line and vehicle chassis ground. Use Value: Withstands 200 A 8.3 ms surge (per ISO 7637-2 Pulse 5a), enabling compliance with OEM-level EMC specifications. |
Use Scenario: Surge hardening of main AC input rectifier stage and microcontroller VDD rails in washing machines and HVAC controllers. IC Role / Device Role: Secondary clamping device after MOV, placed directly at IC power pins to suppress residual ringing. Use Value: Low clamping voltage (274 V) prevents latch-up in 3.3 V/5 V MCUs while surviving repeated 1 kV/500 A surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200A | Lower peak pulse power (600 W), smaller SMB package (vs. 1.5KE), 200 V VBR min, 274 V VC at 2.2 A | Better suited for space-constrained PCBs but insufficient for 1500 W surge events; requires derating in high-energy environments | Select when board area is critical and surge threat level is ≤IEC 61000-4-5 Level 3 (2 kV/12 Ω) |
| 1.5KE200A | Same electrical specs and 1.5KE package; differs only in packaging format (bulk vs. E3/54 tape-and-reel) and RoHS compliance marking | Functionally identical performance and mounting; no layout or thermal changes required | Choose for cost-sensitive production where tape-and-reel delivery is not mandatory |
Compared with SMBJ200A and 1.5KE200A, the 1N6303A-E3/54 provides guaranteed 1500 W surge handling in JEDEC-standard 1.5KE form factor with RoHS-compliant E3 plating and 1400-unit reel packaging - making it optimal for high-reliability industrial and automotive production runs requiring traceable sourcing and thermal robustness.
Availability
1N6303A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive body control modules, and consumer appliance power boards requiring stable component supply across extended temperature ranges and high-surge environments.
Supply support for 1N6303A-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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1N6303A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting industrial, automotive, and telecom infrastructure where failure resilience is non-negotiable.
FAQ
What is the breakdown voltage range of the 1N6303A-E3/54?
The 1N6303A-E3/54 has a specified breakdown voltage (VBR) range of 190 V minimum to 210 V maximum at 1.0 mA test current. This ensures consistent turn-on behavior across production lots and allows designers to verify margin between VWM (171 V) and VBR min for reliable surge detection without false triggering during normal operation.
Is the 1N6303A-E3/54 RoHS compliant and lead-free?
Yes, the 1N6303A-E3/54 carries the E3 suffix, indicating full RoHS compliance per Directive 2011/65/EU, with matte tin-plated leads that meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements. No lead or other restricted substances exceed threshold limits, and the molding compound complies with UL 94 V-0 flammability rating.
What is the clamping voltage of the 1N6303A-E3/54 under surge conditions?
The 1N6303A-E3/54 clamps to a maximum of 274 V when subjected to its rated peak pulse current of 5.5 A (10/1000 µs waveform). This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within safe operating voltage windows.
Can the 1N6303A-E3/54 be used in automotive applications?
The 1N6303A-E3/54 itself is commercial-grade; however, its direct variant 1.5KE200AHE3_B (with HE3 suffix) is AEC-Q101 qualified. For automotive use, engineers should specify the HE3 version - the 1N6303A-E3/54 shares identical electrical characteristics and package but lacks formal qualification documentation required for Tier 1 automotive designs.
What is the thermal resistance and maximum junction temperature of the 1N6303A-E3/54?
The 1N6303A-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and a maximum junction temperature (TJ) of +175 °C. These values enable effective heat dissipation into PCB copper or external heatsinks and support continuous operation in high-ambient environments such as enclosed power enclosures or under-hood automotive locations.
1N6303A-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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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
1N6303A-E3/54 FAQ
1.How can I place an order for 1N6303A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6303A-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 1N6303A-E3/54 reliable?
The price and inventory of 1N6303A-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 1N6303A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6303A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6303A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6303A-E3/54?
1N6303A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6303A-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 1N6303A-E3/54?
For technical support, including 1N6303A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6303A-E3/54 requirements.
6.How does Aetrix verify that 1N6303A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6303A-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 1N6303A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6303A-E3/54?
All 1N6303A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6303A-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 1N6303A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6303A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6303A-E3/54 Tags
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