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Vishay General Semiconductor - Diodes Division 1N6302-E3/73
- Part No.:
- 1N6302-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6302-E3/73.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,445
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Product details
Overview
1N6302-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics. It features a 171 V to 189 V breakdown voltage range at 1 mA test current, 154 V maximum standoff voltage, 6.1 A peak pulse current (10/1000 μs), and clamps transients to ≤246 V. It is used in power supply input stages, DC bus lines, and industrial control I/O protection where high-energy surge immunity is required.
For engineers reviewing the 1N6302-E3/73 datasheet, 1N6302-E3/73 pinout, 1N6302-E3/73 application, or 1N6302-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance data, thermal derating behavior, and direct alternative part comparisons - all specific to the 1N6302-E3/73 commercial-grade TVS diode.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, delivering bidirectional-capable clamping only when configured as a CA variant - but 1N6302-E3/73 is unidirectional, with cathode marked by a band. Its 1500 W peak pulse power rating applies under standardized 10/1000 μs waveform conditions at TA = 25 °C, with thermal derating above 25 °C per Fig. 2.
Clamping response is effectively instantaneous (≤1 ns), and it exhibits low incremental surge resistance enabling rapid energy diversion. The device supports 200 A non-repetitive forward surge current (8.3 ms half-sine) and maintains stable operation across -55 °C to +175 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 171 V min / 189 V max at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Standoff Voltage VWM | 154 V max - ensures no conduction during normal 150 V DC system operation, preventing leakage-related power loss |
| Peak Pulse Power PPPM | 1500 W (10/1000 μs) - sustains single high-energy surges common in industrial motor drives and power line transients |
| Clamping Voltage VC | ≤246 V at 6.1 A IPPM - limits downstream component stress to safe levels during surge events |
| Leakage Current ID | ≤1.0 μA at VWM - minimizes standby power draw and avoids false triggering in high-impedance circuits |
| Junction Temperature Range | -55 °C to +175 °C - enables deployment in under-hood automotive ECUs and industrial PLCs without thermal derating concerns |
| Thermal Resistance RθJL | 15.4 °C/W - allows effective heat transfer to PCB copper or heatsink, supporting sustained surge duty cycles |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. E3 suffix indicates RoHS-compliant commercial grade with JESD 201 Class 1A whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional clamp configuration |
| Cathode | Current exit point during reverse-biased clamping | Marked with color band; connected to protected line (e.g., 150 V DC rail) to shunt overvoltage to ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability and reliability under repeated surge stress without parameter drift |
| 1500 W peak pulse power (10/1000 μs) | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without degradation |
| ≤1 ns response time | Clamps before downstream ICs experience damaging overvoltage - critical for protecting fast-switching MOSFET gates |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events, improving clamping precision |
| UL 497B recognized (QVGQ2, E136766) | Validates suitability for telecom and industrial safety-critical surge protection applications |
Applications
| Industrial Motor Drive DC Bus Protection | Automotive Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Suppresses switching-induced transients on 150 V DC bus lines in variable-frequency drives and servo amplifiers. IC Role / Device Role / Timing Role: Unidirectional TVS placed between DC+ and chassis ground to clamp inductive kickback from IGBTs or MOSFETs. Use Value: Limits transient voltage to ≤246 V, preventing gate oxide rupture in 200 V-rated power semiconductors and ensuring >100,000 surge cycles. |
Use Scenario: Protects BCM microcontroller power rails against load dump and jump-start surges in 12 V vehicle systems. IC Role / Device Role / Timing Role: Front-end TVS on main 12 V input, operating in clamping mode during 35 V/100 ms load dump events. Use Value: Withstands 200 A surge current (8.3 ms half-sine) and maintains <1 μA leakage at 15 V, preserving battery life in always-on modules. |
| Telecom Remote Terminal Unit (RTU) Signal Line Protection | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Shields RS-485 transceivers and sensor interfaces in rural substations exposed to lightning-induced surges on long copper runs. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 5 V or 3.3 V signal rails, coordinated with primary GDT or MOV protection. Use Value: Clamps 1 kV/0.5 A transients within 1 ns, preserving signal integrity and meeting ITU-T K.21 basic protection requirements. |
Use Scenario: Guards voltage sense inputs monitoring 600 V DC link in solar inverters during grid fault recovery. IC Role / Device Role / Timing Role: High-voltage unidirectional TVS placed across differential sense resistor network to prevent ADC saturation. Use Value: 171–189 V VBR aligns precisely with 150 V nominal sensing range, enabling accurate overvoltage detection without false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | DO-214AA package, 180 V VBR, 1000 W PPPM, 5.5 A IPPM - smaller footprint, lower power rating | Preferred for space-constrained PCBs with moderate surge exposure (IEC 61000-4-5 Level 3) | Select SMBJ180A when board area is limited and peak surge energy does not exceed 100 mJ |
| 1.5KE180A | Same 1.5KE package, identical VBR/VC specs, but E3/73 suffix denotes tape-and-reel packaging vs. bulk or alternate reel codes | No functional difference - same electrical and thermal performance, differing only in logistics packaging format | Choose 1.5KE180A if standard reel quantity (1400 pcs) or alternate delivery mode (e.g., E3/54) better matches production planning |
Compared with 1N6302-E3/73, SMBJ180A offers compact size at reduced surge handling capacity, while 1.5KE180A provides identical protection performance in alternate packaging - enabling flexibility in layout density or procurement logistics without compromising clamping accuracy or thermal robustness.
Availability
1N6302-E3/73 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom remote terminal units, and renewable energy inverter designs requiring stable component supply and consistent surge immunity performance across production batches.
Supply support for 1N6302-E3/73 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, power handling, and automotive qualification.
The 1N6302-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments - targeting industrial automation, transportation, and infrastructure applications demanding AEC-Q101 readiness and UL recognition.
FAQ
What is the exact breakdown voltage range of the 1N6302-E3/73?
The 1N6302-E3/73 has a guaranteed breakdown voltage (VBR) range of 171 V minimum to 189 V maximum, measured at 1 mA test current and TA = 25 °C. This tight tolerance ensures predictable clamping onset in 150 V DC systems and supports precise coordination with upstream fuses or current limiters in overvoltage protection schemes.
Is the 1N6302-E3/73 RoHS compliant and lead-free?
Yes, the 1N6302-E3/73 carries the E3 suffix, which designates full RoHS compliance per Directive 2011/65/EU and exemption 7a. Its matte tin-plated leads meet J-STD-002 solderability requirements and pass JESD 201 Class 1A whisker testing - confirming suitability for lead-free reflow and long-term reliability in commercial-grade applications.
Can the 1N6302-E3/73 be used in bidirectional configurations?
No - the 1N6302-E3/73 is strictly a unidirectional TVS diode, indicated by its "A" suffix and cathode band marking. Bidirectional variants (e.g., 1N6302CA) exist in the same family but are distinct orderable parts. Using 1N6302-E3/73 in reverse-biased AC applications would result in forward conduction and failure.
What is the maximum clamping voltage of the 1N6302-E3/73 under surge conditions?
The 1N6302-E3/73 clamps to a maximum of 246 V when subjected to its rated peak pulse current of 6.1 A (10/1000 μs waveform). This value is measured at the device terminals and represents the upper bound of voltage seen by downstream circuitry during worst-case transient events - critical for validating margin against 200 V-rated components.
How does thermal derating affect the 1N6302-E3/73's surge capability?
Per Figure 2 in the Vishay datasheet, the 1N6302-E3/73's peak pulse power must be linearly derated above 25 °C ambient: at 75 °C, only ~75 % of 1500 W remains usable. This directly reduces sustainable IPPM - e.g., at 100 °C, maximum IPPM drops to ~4.5 A - requiring careful thermal design in enclosed or high-temperature enclosures.
1N6302-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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
1N6302-E3/73 FAQ
1.How can I place an order for 1N6302-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6302-E3/73 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 1N6302-E3/73 reliable?
The price and inventory of 1N6302-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6302-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6302-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6302-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6302-E3/73?
1N6302-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6302-E3/73 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 1N6302-E3/73?
For technical support, including 1N6302-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6302-E3/73 requirements.
6.How does Aetrix verify that 1N6302-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6302-E3/73 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 1N6302-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6302-E3/73?
All 1N6302-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6302-E3/73, 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 1N6302-E3/73 part is unused and in its original packaging.
Return procedure for 1N6302-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6302-E3/73 Tags
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