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Vishay General Semiconductor - Diodes Division 1N6283-E3/73
- Part No.:
- 1N6283-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6283-E3/73.pdf
- Description:
- TVS DIODE 26.8VWM 47.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,153
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Product details
Overview
1N6283-E3/73 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 33 V breakdown voltage (VBR = 31.4–34.7 V at 1.0 mA), 28.2 V maximum working peak reverse voltage (VWM), 45.7 V clamping voltage (VC) at 32.8 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the 1N6283-E3/73 datasheet, 1N6283-E3/73 pinout, 1N6283-E3/73 application, or 1N6283-E3/73 equivalent, this part delivers verified transient suppression performance for 24 V and 32 V system rails, with RoHS-compliant matte tin-plated leads, JEDEC 1.5KE package, and AEC-Q101 qualification available in HE3 variants - critical for reliability-critical ESD and lightning surge protection design.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when transient voltage exceeds its 31.4–34.7 V breakdown threshold, it avalanches rapidly (<1 ns response) to divert surge current away from downstream components. Its 1500 W peak pulse power rating is defined under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and thermal performance is characterized by RθJA = 75 °C/W and RθJL = 15.4 °C/W.
The device exhibits low incremental surge resistance and excellent clamping ratio (VC/VWM ≈ 1.62), enabling effective protection of 28 V nominal systems. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and robustness against humidity and mechanical stress, while the molded epoxy case meets UL 94 V-0 flammability rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at 1.0 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 28.2 V - maximum continuous reverse operating voltage; sets safe DC rail margin for 24–32 V systems |
| VC @ IPPM | 45.7 V at 32.8 A - clamping voltage during 10/1000 µs surge; determines protected circuit's maximum transient exposure |
| PPPM | 1500 W - peak pulse power handling capacity; enables single-device protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 32.8 A - peak pulse current capability; supports >30 A surge events without degradation |
| Junction temp. range | –55 °C to +175 °C - wide operating envelope suitable for under-hood automotive and industrial environments |
| Leakage @ VWM | <1.0 µA - negligible standby power loss and no interference with high-impedance sensor biasing |
Pinout & Package
Package: JEDEC-standard 1.5KE molded epoxy case (Case Style 1.5KE), axial-leaded, RoHS-compliant matte tin-plated terminals. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or lowest potential node; completes clamping path during reverse avalanche |
| Cathode (banded end) | High-side transient sensing node | Connected to protected line (e.g., 24 V rail); avalanche initiates when voltage exceeds VBR relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports single-device compliance with IEC 61000-4-5 surge immunity up to 4 kV (line-earth) |
| Clamping voltage ≤45.7 V | Keeps protected ICs (e.g., CAN transceivers, microcontrollers) safely below absolute maximum ratings during transients |
| Response time <1 ns | Faster than MOVs or polymer-based protectors - prevents voltage overshoot before clamping engages |
| AEC-Q101 qualified variant available | Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock |
Applications
| Industrial Motor Control | Automotive Body Control Module |
|---|---|
Use Scenario: Protection of 24 V DC supply rails feeding gate drivers and position sensors in servo drives. IC Role / Device Role / Timing Role: Shunt clamping element placed across input rail to clamp inductive switching spikes from contactor coils and relay back-EMF. Use Value: Limits transient excursions to ≤45.7 V, preventing latch-up or oxide rupture in 36 V-rated MOSFET drivers and Hall-effect sensors. |
Use Scenario: Surge protection on LIN bus lines and power inputs of door module ECUs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V/24 V auxiliary power inputs and bidirectional data lines. Use Value: Withstands repetitive 10/1000 µs surges up to 32.8 A while maintaining sub-1 µA leakage - preserving bus integrity and sleep-mode current budgets. |
| Telecom Power Supply Input | Consumer Appliance Mainboard |
Use Scenario: Input-stage protection for AC/DC adapters and PoE-powered equipment subjected to lightning-induced surges on AC mains or Ethernet cables. IC Role / Device Role / Timing Role: First-line defense upstream of bridge rectifier and bulk capacitor, absorbing energy before it reaches regulation circuitry. Use Value: 1500 W rating enables coordination with upstream fuses and varistors to achieve Class II/III surge immunity per IEC 61000-4-5 Ed. 3. |
Use Scenario: Protection of microcontroller I/O pins and display backlight drivers in washing machines and HVAC controllers exposed to ESD and relay noise. IC Role / Device Role / Timing Role: Localized point-of-use clamping on 5 V, 12 V, and 24 V internal rails and sensor interfaces. Use Value: Low clamping voltage (45.7 V) and fast response prevent damage to 5 V logic-level peripherals without requiring additional series impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33A-E3/52 (Vishay) | Same VBR range (31.4–34.7 V), but SMC package (smaller footprint, lower PPPM = 600 W) | Lower power handling limits use to <1 kV IEC 61000-4-2 ESD or low-energy transients; unsuitable for 4 kV surge | Select when board space is constrained and surge threat level is limited to ESD or low-energy switching noise. |
| 1.5KE33A-E3/54 (Vishay) | Identical electrical specs and 1.5KE package; differs only in tape-and-reel packaging (54 vs. 73) and base quantity (1400 vs. 750 units) | No functional or application difference - fully interchangeable in circuit design and layout | Choose based on procurement logistics: 1N6283-E3/73 offers smaller reels (750 pcs) for prototyping and low-volume production. |
Compared with SMBJ33A-E3/52, the 1N6283-E3/73 provides 2.5× higher surge power margin for industrial surge immunity; compared with 1.5KE33A-E3/54, it offers identical protection performance with optimized reel size for flexible inventory management.
Availability
1N6283-E3/73 is available at Aetrix Electronics and suitable for industrial motor control, automotive body electronics, telecom power supplies, and consumer appliance designs requiring stable component supply and traceable RoHS-compliant sourcing.
Supply support for 1N6283-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, power efficiency, and ruggedized packaging.
The 1N6283-E3/73 belongs to Vishay's TRANSZORB® TVS family - engineered specifically for high-energy transient suppression in harsh environments, with focus on automotive, industrial, and telecom infrastructure applications.
FAQ
What is the breakdown voltage tolerance of the 1N6283-E3/73?
The 1N6283-E3/73 has a specified breakdown voltage range of 31.4 V to 34.7 V at 1.0 mA test current, representing ±5.2% tolerance around the nominal 33 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable overvoltage protection margins in 24 V and 32 V systems where the 1N6283-E3/73 is commonly deployed.
Is the 1N6283-E3/73 suitable for bidirectional transient protection?
No, the 1N6283-E3/73 is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed. For bidirectional applications (e.g., AC lines or differential buses), Vishay offers the 1N6283CA variant - which shares identical VBR, VC, and PPPM specs but uses symmetrical avalanche structure. The 1N6283-E3/73 must be installed with cathode toward the protected line and anode to ground to function correctly.
What is the maximum clamping voltage of the 1N6283-E3/73 under surge conditions?
The 1N6283-E3/73 clamps to a maximum of 45.7 V when subjected to its rated peak pulse current of 32.8 A under the standard 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 surge events - critical for verifying compatibility with 48 V-tolerant ICs or selecting appropriate series impedance for coordinated protection.
Does the 1N6283-E3/73 meet automotive qualification standards?
The base 1N6283-E3/73 is commercial-grade and RoHS-compliant. However, Vishay offers the AEC-Q101 qualified variant as 1N6283HE3_B (with "B" revision code), which undergoes extended stress testing including temperature cycling, HAST, and mechanical shock. For automotive applications requiring qualification evidence, specify the HE3_B suffix - the 1N6283-E3/73 itself is not AEC-Q101 certified.
How does the thermal resistance of the 1N6283-E3/73 affect PCB layout?
The 1N6283-E3/73 has RθJL = 15.4 °C/W (junction-to-lead) and RθJA = 75 °C/W (junction-to-ambient), meaning thermal performance depends heavily on copper pour area and lead soldering quality. To maintain TJ < 175 °C during repetitive surges, use ≥100 mm² of 2 oz. copper connected to both leads, avoid narrow traces, and ensure full-solder fillets - especially critical when deploying the 1N6283-E3/73 in enclosed industrial enclosures.
1N6283-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):
- 26.8V
- Voltage - Breakdown (Min):
- 29.7V
- Voltage - Clamping (Max) @ Ipp:
- 47.7V
- Current - Peak Pulse (10/1000µs):
- 31.4A
- 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
1N6283-E3/73 FAQ
1.How can I place an order for 1N6283-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6283-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 1N6283-E3/73 reliable?
The price and inventory of 1N6283-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 1N6283-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6283-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6283-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6283-E3/73?
1N6283-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6283-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 1N6283-E3/73?
For technical support, including 1N6283-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6283-E3/73 requirements.
6.How does Aetrix verify that 1N6283-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6283-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 1N6283-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6283-E3/73?
All 1N6283-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6283-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 1N6283-E3/73 part is unused and in its original packaging.
Return procedure for 1N6283-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6283-E3/73 Tags
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