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Vishay General Semiconductor - Diodes Division 1N6288A-E3/73
- Part No.:
- 1N6288A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6288A-E3/73.pdf
- Description:
- TVS DIODE 43.6VWM 70.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,752
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Product details
Overview
1N6288A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 48.5 V to 53.6 V breakdown voltage (VBR) at 1 mA, 43.6 V maximum standoff voltage (VWM), 70.1 V clamping voltage (VC) at 21.4 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across -55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1N6288A-E3/73 datasheet, 1N6288A-E3/73 pinout, 1N6288A-E3/73 application, or 1N6288A-E3/73 equivalent, this device serves as a high-energy, fast-response (≤1 ns), glass-passivated unidirectional TVS for industrial power supplies, automotive body electronics, and telecom line protection where robust 1.5 kW surge handling and low clamping ratio are required.
Technical Context
This device implements a silicon avalanche junction structure with glass passivation for stable breakdown and low leakage. Its unidirectional polarity enables cathode-referenced clamping on positive-going transients, and its 1500 W peak pulse rating is validated under JEDEC-standard 10/1000 µs waveform with 0.01% duty cycle.
The thermal design relies on low junction-to-lead resistance (RθJL = 15.4 °C/W) and supports mounting on PCB copper pour for effective transient energy dissipation. Its 70.1 V clamping voltage at 21.4 A ensures safe voltage limiting for 48 V nominal systems, while the 0.102 %/°C VBR temperature coefficient guarantees predictable drift over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 48.5 V / 53.6 V at IT = 1 mA - defines precise avalanche onset window for reliable triggering without premature conduction |
| VWM | 43.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA, compatible with 48 V system margins |
| VC @ IPPM | 70.1 V at 21.4 A - clamping voltage during full 1500 W surge, limiting downstream stress to <1.45× VWM |
| PPPM | 1500 W (10/1000 µs) - single-pulse surge handling capacity sufficient for IEC 61000-4-5 Level 4 (4 kV) compliance testing |
| IFSM | 200 A (8.3 ms half-sine) - surge current capability for short-duration inrush or fault events without bond wire failure |
| Junction Temp | -55 °C to +175 °C - wide operating range enabling use in under-hood automotive and industrial environments |
| Leakage @ VWM | ≤1.0 µA - minimal standby power loss and signal integrity impact in always-on monitoring circuits |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge current sink (in reverse-biased clamping mode) | Connected to protected line; conducts surge current to ground when VLINE > VC |
| Cathode | Reference node / Clamping voltage reference | Connected to system ground or lower-potential rail; defines clamping threshold relative to this node |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift under thermal cycling and humidity exposure |
| 1500 W peak pulse power (10/1000 µs) | Supports robust protection against severe transients including indirect lightning and load dump in 24–48 V systems |
| Clamping ratio (VC/VBR) ≈ 1.39 | Delivers tighter voltage control than typical Zener-based suppressors, reducing margin requirements for downstream ICs |
| Response time ≤1 ns | Engages before most semiconductor damage mechanisms initiate, preserving gate oxides and junction integrity |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test and UL 94 V-0 flammability standard for safety-critical deployments |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 48 V DC input rails in programmable logic controllers (PLCs) against inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp positive transients before they reach DC-DC converters and microcontrollers. Use Value: Limits transient voltage to 70.1 V, preventing latch-up or permanent damage to 75 V-rated input stages while maintaining <1 µA leakage during normal operation. |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers in door modules exposed to battery load dump and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VBAT-connected nodes, activated within 1 ns to suppress spikes up to 1500 W without affecting signal timing. Use Value: Withstands 200 A surge current (8.3 ms) and maintains clamping below 75 V, ensuring ASIL-B functional safety compliance for non-safety-critical actuators. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in outdoor base stations from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: First-stage protector on power and data lines, working in coordination with GDTs and polymer PTCs in a multi-stage architecture. Use Value: Provides low-clamp, fast-response layer that absorbs initial energy spike, reducing stress on secondary protection components and extending overall system MTBF. |
Use Scenario: Protecting H-bridge gate drivers and current sense amplifiers in smart washing machine motor control boards from back-EMF during spin cycle commutation. IC Role / Device Role / Timing Role: Rail-to-ground TVS on 24 V logic supply and 310 V DC bus, triggered only during abnormal voltage excursions beyond normal operating envelope. Use Value: Enables compact layout with no active circuitry needed-passive, maintenance-free protection that survives repeated 1500 W pulses without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51A | DO-214AA package (smaller footprint), 51 V VBR, 87.1 V VC @ 17.2 A, 600 W PPPM | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without parallel staging | Select when board space is constrained and surge threat level is ≤1 kV; requires derating for 48 V rail hold-off. |
| 1.5KE51A-E3/54 | Same electrical specs and DO-201AD package, but supplied in 13" tape-and-reel (1400 pcs) vs. 7" reel (750 pcs) for 1N6288A-E3/73 | Identical protection performance and thermal behavior; differs only in packaging format and reel size | Choose for high-volume SMT assembly where automated pick-and-place compatibility with larger reels is required. |
Compared with SMBJ51A, the 1N6288A-E3/73 delivers 2.5× higher peak power and lower clamping ratio for demanding 48 V industrial surges; compared with 1.5KE51A-E3/54, it offers identical protection but optimized for smaller-batch procurement via 7" reel delivery.
Availability
1N6288A-E3/73 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and telecom infrastructure requiring stable component supply with traceable RoHS-compliant sourcing and AEC-Q101-qualified alternatives upon request.
Supply support for 1N6288A-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 1N6267A–1N6303A series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where fast response, stable clamping, and long-term parametric consistency are critical.
FAQ
What is the breakdown voltage tolerance for 1N6288A-E3/73?
The 1N6288A-E3/73 has a specified breakdown voltage range of 48.5 V to 53.6 V at 1 mA test current, representing a ±5.2% tolerance around the nominal 51 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports precise system-level overvoltage margining without overspecifying downstream components.
Is 1N6288A-E3/73 suitable for automotive applications?
Yes, the 1N6288A-E3/73 is RoHS-compliant and manufactured to commercial-grade specifications. While the base 1N6288A-E3/73 variant is not AEC-Q101 qualified, Vishay offers the functionally identical 1.5KE51AHE3_B variant (with HE3 suffix) that meets AEC-Q101 for automotive use. Engineers selecting 1N6288A-E3/73 for automotive prototypes should verify qualification status per application criticality and consult Vishay's latest automotive-grade part numbers.
How does the clamping voltage of 1N6288A-E3/73 compare to its standoff voltage?
The 1N6288A-E3/73 has a maximum standoff voltage (VWM) of 43.6 V and a clamping voltage (VC) of 70.1 V at 21.4 A, yielding a clamping ratio of approximately 1.61. This ratio reflects the device's ability to remain non-conductive below 43.6 V while limiting transient excursions to under 70.1 V-critical for protecting 48 V-rated ICs with 75 V absolute maximum ratings.
Can 1N6288A-E3/73 be used in bidirectional configurations?
No, the 1N6288A-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional variants in the same family carry the "CA" suffix (e.g., 1.5KE51CA). Using 1N6288A-E3/73 in a bidirectional application would result in forward conduction during negative transients, causing failure. For AC or dual-polarity signal lines, select a verified bidirectional part such as 1.5KE51CA-E3/54.
What is the thermal resistance profile of 1N6288A-E3/73?
The 1N6288A-E3/73 exhibits a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W and a junction-to-ambient resistance (RθJA) of 75 °C/W under standard conditions. Effective heat dissipation requires mounting with ≥10 mm² of 2 oz copper connected to both leads; this enables sustained operation at elevated ambient temperatures and supports repetitive surge events without thermal runaway.
1N6288A-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 43.6V
- Voltage - Breakdown (Min):
- 48.5V
- Voltage - Clamping (Max) @ Ipp:
- 70.1V
- Current - Peak Pulse (10/1000µs):
- 21.4A
- 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
1N6288A-E3/73 FAQ
1.How can I place an order for 1N6288A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6288A-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 1N6288A-E3/73 reliable?
The price and inventory of 1N6288A-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 1N6288A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6288A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6288A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6288A-E3/73?
1N6288A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6288A-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 1N6288A-E3/73?
For technical support, including 1N6288A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6288A-E3/73 requirements.
6.How does Aetrix verify that 1N6288A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6288A-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 1N6288A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6288A-E3/73?
All 1N6288A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6288A-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 1N6288A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6288A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6288A-E3/73 Tags
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