My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1N6272A-E3/73
- Part No.:
- 1N6272A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6272A-E3/73.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,405
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6272A-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 10.5–11.6 V breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 15.6 V clamping voltage (VC) at 96.2 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 in DC power rail protection for industrial sensor interfaces and automotive control modules.
For engineers reviewing the 1N6272A-E3/73 datasheet, 1N6272A-E3/73 pinout, 1N6272A-E3/73 application, or 1N6272A-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under surge conditions, thermal derating behavior, and direct alternative options for circuit-level ESD and lightning transient protection design.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action begins at 10.5 V (min VBR) and limits transients to ≤15.6 V at 96.2 A, enabling robust protection of 12 V nominal systems without forward conduction during normal operation.
The device complies with JEDEC standard 1.5KE case style, supports 200 A non-repetitive forward surge (8.3 ms half-sine), and exhibits a temperature coefficient of 0.075 %/°C for VBR. Its 75 °C/W junction-to-ambient thermal resistance requires careful PCB copper area planning for sustained power dissipation up to 6.5 W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - defines minimum clamping onset and maximum guaranteed breakdown threshold at 1.0 mA test current |
| VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 µA; sets safe DC bias margin below breakdown |
| VC @ IPPM | 15.6 V at 96.2 A - peak clamped voltage during 10/1000 µs surge; determines protected IC's maximum transient stress level |
| PPPM | 1500 W - peak pulse power handling capability; enables suppression of high-energy lightning-induced surges per IEC 61000-4-5 |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms); supports protection against inductive switch-off spikes in relay/motor drivers |
| TJ max. | +175 °C - maximum junction temperature; allows operation in under-hood automotive or high-ambient industrial environments |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; dictates minimum copper pour area required on PCB for 6.5 W steady-state dissipation |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (axial lead, DO-201AD), RoHS-compliant matte tin-plated leads, UL 94 V-0 rated molding compound. Cathode identified by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to system ground or low-side reference; carries full surge current during clamping |
| Cathode | Reverse-biased terminal / protected line connection | Connected to protected signal/power line; blocks VWM = 9.40 V in normal operation, avalanches above VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under humidity and thermal cycling stress |
| 1500 W peak pulse power (10/1000 µs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive power inputs |
| Clamping voltage ≤15.6 V at 96.2 A | Protects 12 V logic and analog ICs (e.g., microcontrollers, CAN transceivers) without exceeding absolute maximum ratings |
| Response time <1 ns | Activates before most semiconductor damage mechanisms initiate, preventing latch-up or gate oxide rupture |
| AEC-Q101 qualification available (HE3 variant) | Validated for automotive under-hood applications including engine control units and body electronics |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECUs exposed to load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery input and DC-DC converter input stage. Use Value: Limits transients to ≤15.6 V, preserving downstream regulator integrity and avoiding brownout resets during 100 V/50 ms load dump events. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to cable-induced ESD and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional protection not applicable; unidirectional 1N6272A-E3/73 placed across loop supply terminals with cathode to +V. Use Value: Clamps induced surges to 15.6 V while maintaining <5 µA leakage at 9.4 V, ensuring loop accuracy and sensor calibration stability. |
| Telecom Line Card Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: AC/DC front-end of telecom base station power supplies subjected to lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: First-stage transient suppressor upstream of bridge rectifier and bulk capacitor. Use Value: Absorbs 1500 W pulses without degradation, reducing stress on MOVs and enabling smaller, more reliable secondary protection stages. |
Use Scenario: Secondary-side 12 V DC output of wall adapters powering USB-C peripherals, vulnerable to user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional TVS across output rails, cathode to +12 V, anode to GND. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), limiting voltage to 15.6 V and preventing latch-up in connected SoCs. |
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 | DO-214AA package (SMB), 11.1–12.3 V VBR, 12.3 V VC @ 96.8 A, 600 W PPPM | Lower peak power rating; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ11A when board area is limited and surge energy is ≤600 W; verify thermal layout for lower RθJA (50 °C/W) |
| 1.5KE11A | Same 1.5KE package, identical VBR/VC/PPPM specs, but E3/73 suffix denotes tape-and-reel packaging (73 = 750 pcs/reel) | No functional difference; identical electrical and thermal performance | 1.5KE11A is functionally identical to 1N6272A-E3/73 - both are Vishay's part number variants for the same unidirectional 11 V TVS die in 1.5KE case |
Compared with 1N6272A-E3/73, SMBJ11A offers smaller footprint but reduced surge capacity, while 1.5KE11A provides identical protection in the same package with alternate packaging configuration - making it a direct form-fit-function match for inventory flexibility.
Availability
1N6272A-E3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for 1N6272A-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 1N6272A-E3/73 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage range for the 1N6272A-E3/73?
The 1N6272A-E3/73 has a specified breakdown voltage (VBR) range of 10.5 V to 11.6 V at 1.0 mA test current, measured per JEDEC standards. This range ensures consistent clamping onset across production lots and supports reliable protection of 12 V nominal systems without premature conduction during normal operation. The 1N6272A-E3/73 maintains this specification across its full operating temperature range of –55 °C to +175 °C.
Is the 1N6272A-E3/73 suitable for automotive applications?
Yes - the 1N6272A-E3/73 is RoHS-compliant and offered in AEC-Q101-qualified variants (e.g., 1.5KE11AHE3_B). While the E3/73 suffix denotes commercial-grade packaging, its 175 °C maximum junction temperature, 200 A IFSM, and robust glass-passivated junction make it suitable for under-dash and engine bay applications when thermally managed. For certified automotive use, specify the HE3 variant of the same electrical grade.
How does the clamping voltage of the 1N6272A-E3/73 compare to its breakdown voltage?
The 1N6272A-E3/73 clamps transients to 15.6 V at its rated peak pulse current of 96.2 A (10/1000 µs waveform), which is approximately 40–50% above its minimum breakdown voltage of 10.5 V. This incremental clamping voltage (ΔVC = 5.1 V) reflects low dynamic impedance and ensures protected circuits remain within safe operating limits during surge events. The 1N6272A-E3/73 achieves this with minimal voltage overshoot due to sub-nanosecond response.
What is the meaning of the "E3/73" suffix in 1N6272A-E3/73?
The "E3" indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 1A whisker resistance. The "/73" denotes packaging: 750 pieces per 13-inch diameter paper tape and reel. This differs from /54 (1400 pcs/reel) and HE3 variants (AEC-Q101 qualified). The 1N6272A-E3/73 shares identical electrical characteristics with 1.5KE11A but uses Vishay's legacy 1N62xxA numbering convention.
Can the 1N6272A-E3/73 be used in bidirectional configurations?
No - the 1N6272A-E3/73 is strictly unidirectional, with polarity marked by a cathode band. Bidirectional operation requires CA-suffixed parts such as 1.5KE11CA (VBR = 10.5–11.6 V, symmetric in both directions). Using the 1N6272A-E3/73 in reverse-biased configurations risks permanent failure above 9.40 V, as its reverse leakage rises sharply beyond VWM. For bidirectional protection, select the 1N6272CA or equivalent CA-series device instead of the 1N6272A-E3/73.
1N6272A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1N6272A-E3/73 FAQ
1.How can I place an order for 1N6272A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6272A-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 1N6272A-E3/73 reliable?
The price and inventory of 1N6272A-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 1N6272A-E3/73 is usually 5 days.
3.What payment methods are accepted for 1N6272A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6272A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6272A-E3/73?
1N6272A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6272A-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 1N6272A-E3/73?
For technical support, including 1N6272A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6272A-E3/73 requirements.
6.How does Aetrix verify that 1N6272A-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1N6272A-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 1N6272A-E3/73 meets industry standards.
7.What is the process for return or replacement of 1N6272A-E3/73?
All 1N6272A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6272A-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 1N6272A-E3/73 part is unused and in its original packaging.
Return procedure for 1N6272A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6272A-E3/73 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 …
