My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1N6272AHE3/51
- Part No.:
- 1N6272AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6272AHE3/51.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,135
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6272AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power lines and signal paths. It features a 10.5 V minimum breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 15.6 V maximum clamping voltage (VC) at 96.2 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 1N6272AHE3/51 datasheet, 1N6272AHE3/51 pinout, 1N6272AHE3/51 application, or 1N6272AHE3/51 equivalent, this part serves as a robust, RoHS-compliant, lead-free TVS solution for protecting MOSFETs, ICs, and sensor interfaces against lightning-induced surges, inductive switching transients, and ESD events in automotive and industrial systems.
Technical Context
The 1N6272AHE3/51 operates as a uni-directional avalanche diode with glass-passivated junction construction, enabling fast sub-nanosecond response to transient overvoltages. Its clamping behavior is defined by a low incremental surge resistance and tightly controlled VBR tolerance (±5% typical), ensuring predictable protection thresholds across temperature.
It is rated for 175 °C maximum junction temperature, supports 200 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.075 %/°C temperature coefficient of VBR, minimizing drift under thermal stress in high-reliability environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 10.5 V - Ensures reliable conduction onset above normal operating voltage (9.40 V VWM) while avoiding false triggering |
| VC (max) @ IPPM | 15.6 V - Limits protected circuit voltage during 96.2 A transient, critical for safeguarding 12 V rail components |
| PPPM | 1500 W - Sustains high-energy 10/1000 µs surges without failure, suitable for automotive load-dump immunity |
| IPPM | 96.2 A - Peak current handling capacity directly tied to clamping performance at VC |
| VWM | 9.40 V - Maximum continuous reverse working voltage; defines upper limit of safe DC operation |
| TJ max | 175 °C - Enables deployment in under-hood automotive locations and high-ambient industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress-test requirements including HTGB, HTRB, and TCT |
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 solderability standards. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in uni-directional clamp configuration |
| Cathode | Protected line connection / transient sink | Connected to line being protected (e.g., 12 V supply rail); color-banded end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR and long-term reliability under humidity and thermal cycling stress |
| 1500 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 5a/b (load dump) requirements for 12 V automotive systems |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules without additional qualification effort |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification plus JESD 201 Class 2 whisker resistance for high-reliability assembly |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes overvoltage stress on downstream components during surge events |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5) and alternator ripple. IC Role / Device Role / Timing Role: Uni-directional TVS placed between battery rail and input filter capacitor, clamping surges within nanoseconds. Use Value: Limits rail voltage to ≤15.6 V during 96.2 A transients, preventing damage to LDOs, microcontrollers, and CAN transceivers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: TVS connected between signal line and ground, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-ns response prevents latch-up or gate oxide rupture in op-amps and ADC front-ends. |
| Telecom Line Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Safeguarding PoE-powered device inputs against induced lightning surges on outdoor Ethernet cabling. IC Role / Device Role / Timing Role: Primary protection element on DC input side of isolated DC/DC converter, upstream of secondary TVS array. Use Value: 1500 W rating handles multi-kA surge currents per Telcordia GR-1089-CORE, reducing need for cascaded protection. | Use Scenario: Overvoltage suppression on AC/DC adapter primary-side rectifier output before bulk capacitor. IC Role / Device Role / Timing Role: Clamps switching spikes and line transients before they reach switching controller ICs. Use Value: 9.40 V VWM allows compatibility with 9–10 V rectified outputs while blocking normal ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Lower PPPM (600 W), smaller SMB package (vs. DO-201AD), 11.1 V VWM, 18.2 V VC @ 33 A | Not AEC-Q101 qualified; suited for space-constrained consumer PCBs, not under-hood automotive | Select when board area is critical and surge energy is lower (e.g., USB port protection). |
| 1.5KE11AHE3/54 | Same electrical specs and DO-201AD package; differs only in packaging format (tape-and-reel vs. bulk/ammopack) | No functional difference; identical performance and qualification status | Choose based on procurement logistics-1.5KE11AHE3/54 is preferred for automated SMT placement. |
Compared with SMBJ11A, the 1N6272AHE3/51 delivers 2.5× higher surge power and automotive qualification; compared with 1.5KE11AHE3/54, it shares identical protection characteristics but uses a different base quantity/reel configuration (51 vs. 54), requiring no design or layout change.
Availability
1N6272AHE3/51 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom infrastructure requiring stable component supply with AEC-Q101 assurance and long-lifecycle support.
Supply support for 1N6272AHE3/51 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1N6272AHE3/51 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments where automotive, industrial, and telecom systems demand proven surge resilience and long-term stability.
FAQ
What is the breakdown voltage range for the 1N6272AHE3/51?
The 1N6272AHE3/51 has a specified breakdown voltage (VBR) range of 10.5 V (minimum) to 11.6 V (maximum) at 1.0 mA test current, per Vishay Document 88301. This tight ±5% tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margining in 12 V system designs.
Is the 1N6272AHE3/51 suitable for automotive applications?
Yes, the 1N6272AHE3/51 is AEC-Q101 qualified and explicitly listed in Vishay's qualified devices table for the 1.5KE series (Document 88301, Note 2). Its 175 °C max junction temperature, glass-passivated junction, and 1500 W surge rating make it appropriate for engine control units, body electronics, and ADAS power supplies where automotive-grade reliability is mandatory.
What does the "HE3/51" suffix mean in 1N6272AHE3/51?
The "HE3" suffix denotes RoHS compliance and AEC-Q101 qualification per JESD 201 Class 2 whisker testing, while "/51" specifies the preferred packaging code: 51 = 13" diameter paper tape and reel, 1400 pieces per reel. This matches Vishay's ordering information table and distinguishes it from alternate reels like /54 (same quantity, different tape specification).
How does the clamping voltage of the 1N6272AHE3/51 compare to its breakdown voltage?
The 1N6272AHE3/51 clamps at a maximum of 15.6 V when subjected to its rated 96.2 A peak pulse current (10/1000 µs waveform). With a minimum VBR of 10.5 V, this yields a clamping ratio (VC/VBR) of approximately 1.48 - a low value indicating efficient voltage limiting and reduced stress on downstream ICs during surge events.
Can the 1N6272AHE3/51 be used in bi-directional configurations?
No, the 1N6272AHE3/51 is a uni-directional TVS diode, as confirmed by its part number structure (no "C" suffix) and the "Polarity: Uni-directional, bi-directional" note in the PRIMARY CHARACTERISTICS section. For bi-directional protection, Vishay offers the 1N6272CA variant, which has symmetric breakdown in both directions and no cathode marking.
1N6272AHE3/51 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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
1N6272AHE3/51 FAQ
1.How can I place an order for 1N6272AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6272AHE3/51 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 1N6272AHE3/51 reliable?
The price and inventory of 1N6272AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6272AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6272AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6272AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6272AHE3/51?
1N6272AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6272AHE3/51 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 1N6272AHE3/51?
For technical support, including 1N6272AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6272AHE3/51 requirements.
6.How does Aetrix verify that 1N6272AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6272AHE3/51 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 1N6272AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6272AHE3/51?
All 1N6272AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6272AHE3/51, 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 1N6272AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6272AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6272AHE3/51 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 …
