My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1N6288AHE3/51
- Part No.:
- 1N6288AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6288AHE3/51.pdf
- Description:
- TVS DIODE 43.6VWM 70.1VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,816
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6288AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 51 V breakdown voltage (VBR = 48.5–53.6 V at 1 mA), 43.6 V maximum stand-off voltage (VWM), 70.1 V clamping voltage (VC) at 21.4 A peak pulse current, 1500 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1N6288AHE3/51 datasheet, 1N6288AHE3/51 pinout, 1N6288AHE3/51 application, or 1N6288AHE3/51 equivalent, this device serves as a robust, fast-response (≤1 ns), glass-passivated TVS for protecting MOSFETs, ICs, and sensor interfaces against lightning-induced surges, inductive switching transients, and ESD events in industrial and automotive systems.
Technical Context
This TVS diode operates as a uni-directional avalanche clamp with a cathode-band polarity marking. Its junction structure delivers low incremental surge resistance and excellent clamping ratio (VC/VWM ≈ 1.61), enabling precise voltage limiting during transient events. The device sustains 200 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits a temperature coefficient of VBR of +0.102 %/°C.
Thermally, it features RθJA = 75 °C/W (junction-to-ambient) and RθJL = 15.4 °C/W (junction-to-lead), supporting reliable operation up to TJ = 175 °C. Its molded epoxy case meets UL 94 V-0 and is RoHS-compliant (E3 suffix), with matte tin-plated leads qualified per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 48.5 V / 53.6 V at 1 mA - defines precise avalanche onset threshold for repeatable clamping initiation |
| VWM | 43.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 70.1 V at 21.4 A - clamped voltage during 1500 W transient, limiting stress on downstream components |
| PPPM | 1500 W (10/1000 µs waveform) - peak surge energy handling capacity for lightning and load-dump events |
| TJ max. | +175 °C - enables use in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 | Qualified - validated for automotive electronic modules requiring enhanced reliability and stress testing |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with cathode band marking. Leads are matte tin-plated, solderable per J-STD-002, and qualified for 275 °C solder dip (10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during positive transients when cathode is biased higher |
| Cathode (banded end) | Avalanche clamping terminal | Connected to higher-potential rail (e.g., VCC); initiates breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Handles automotive load-dump pulses and telecom lightning surges without degradation |
| Response time ≤1 ns | Clamps transients before sensitive ICs experience damaging overvoltage |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| Low clamping ratio (VC/VWM = 1.61) | Minimizes margin between operating voltage and clamping level, improving system-level protection headroom |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery management system (BMS) input stages from ISO 7637-2 load-dump transients. IC Role / Device Role / Timing Role: Uni-directional TVS placed between VBAT and ground to clamp surges above 43.6 V before they reach DC-DC controllers and monitoring ICs. Use Value: Limits peak voltage to 70.1 V during 1500 W transients, preventing latch-up or gate oxide rupture in protected silicon. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: TVS connected across sensor supply and return lines to absorb inductive kick energy from nearby solenoid drivers. Use Value: Sub-1 ns response ensures clamping occurs before 100 ns rise-time transients exceed ADC input absolute maximum ratings. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-side DC bus protection in PoE-powered network switches subjected to induced lightning surges on Ethernet cabling. IC Role / Device Role / Timing Role: TVS deployed on 54 V auxiliary rail to suppress coupled transients entering via isolated DC-DC converter outputs. Use Value: 175 °C max junction temperature supports operation in sealed enclosures with limited airflow and high ambient temperatures. |
Use Scenario: Overvoltage suppression on the output of AC-DC adapters used in smart home hubs, guarding against internal regulator failure. IC Role / Device Role / Timing Role: Clamping device placed between regulated 5 V output and ground to prevent >7 V from reaching USB ports and SoCs. Use Value: AEC-Q101 qualification provides extended lifetime and reduced infant mortality versus commercial-grade alternatives in 24/7 operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ51A | DO-214AA (SMB) package, 51 V VBR, 600 W PPPM, same VWM/VC specs but lower surge rating | Surface-mount alternative for space-constrained PCBs; lacks AEC-Q101 qualification in standard grade | Select SMBJ51A only if board area is critical and surge energy remains below 600 W; verify thermal relief for SMB footprint. |
| 1.5KE51A-E3/54 | Same electrical specs and DO-201AD package, but commercial-grade (non-AEC-Q101) and supplied in 1400-piece tape-and-reel | Cost-optimized replacement for non-automotive applications where qualification is not required | Choose 1.5KE51A-E3/54 for consumer or industrial designs where AEC-Q101 is unnecessary and volume pricing is prioritized. |
Compared with SMBJ51A, 1N6288AHE3/51 offers 2.5× higher surge power and automotive qualification; compared with 1.5KE51A-E3/54, it adds AEC-Q101 validation and HE3 whisker-test compliance-critical for mission-critical automotive deployments.
Availability
1N6288AHE3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1N6288AHE3/51 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The 1N6288AHE3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, millisecond-scale transient suppression in harsh environments where voltage-sensitive electronics require fail-safe overvoltage protection.
FAQ
What is the breakdown voltage tolerance of the 1N6288AHE3/51?
The 1N6288AHE3/51 has a specified breakdown voltage range of 48.5 V to 53.6 V at 1 mA test current, corresponding to a ±5.2% tolerance about the nominal 51 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports predictable system-level overvoltage design margins.
Is the 1N6288AHE3/51 suitable for automotive applications?
Yes, the 1N6288AHE3/51 is AEC-Q101 qualified and manufactured with HE3 suffix (JESD 201 Class 2 whisker test), making it suitable for automotive powertrain, body electronics, and ADAS modules. Its 175 °C max junction temperature and robust surge capability align with ISO 7637-2 and ISO 16750-2 requirements.
What is the clamping voltage of the 1N6288AHE3/51 at its rated peak pulse current?
The 1N6288AHE3/51 clamps to a maximum of 70.1 V at its rated peak pulse current of 21.4 A (10/1000 µs waveform). This VC value is guaranteed across temperature and ensures protected downstream components remain within safe operating voltage limits during worst-case transients.
Does the 1N6288AHE3/51 have a bi-directional variant?
No-the 1N6288AHE3/51 is strictly a uni-directional TVS diode, identified by the "A" suffix and cathode band marking. For bi-directional operation at the same voltage rating, the equivalent part is 1N6288CAHE3/51 (or 1.5KE51CAHE3_A), which clamps symmetrically for AC or floating-rail applications.
What package type does the 1N6288AHE3/51 use, and what are its key mechanical features?
The 1N6288AHE3/51 uses the DO-201AD (Case Style 1.5KE) axial-leaded package with a molded epoxy body meeting UL 94 V-0 flammability rating. Its leads are matte tin-plated, solderable per J-STD-002, and qualified for 275 °C solder dip (10 s); the HE3 suffix confirms JESD 201 Class 2 whisker resistance.
1N6288AHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6288AHE3/51 FAQ
1.How can I place an order for 1N6288AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6288AHE3/51 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 1N6288AHE3/51 reliable?
The price and inventory of 1N6288AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6288AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6288AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6288AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6288AHE3/51?
1N6288AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6288AHE3/51 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 1N6288AHE3/51?
For technical support, including 1N6288AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6288AHE3/51 requirements.
6.How does Aetrix verify that 1N6288AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6288AHE3/51 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 1N6288AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6288AHE3/51?
All 1N6288AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6288AHE3/51, 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 1N6288AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6288AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6288AHE3/51 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
