My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1N6275AHE3/51
- Part No.:
- 1N6275AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6275AHE3/51.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,901
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1N6275AHE3/51 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 1500 W peak pulse power rating (10/1000 µs), 14.3–15.8 V breakdown voltage at 1 mA, 12.8 V maximum stand-off voltage, 21.2 V clamping voltage at 70.8 A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1N6275AHE3/51 datasheet, 1N6275AHE3/51 pinout, 1N6275AHE3/51 application, or 1N6275AHE3/51 equivalent, this part serves as a robust, RoHS-compliant, lead-free TVS solution for protecting MOSFETs, microcontrollers, and sensor interfaces against lightning-induced surges, inductive switching transients, and ESD events in industrial and automotive systems.
Technical Context
This unidirectional TVS diode operates with a glass-passivated junction and exhibits sub-nanosecond response time (<1 ns), enabling effective suppression of fast-rising transients before sensitive downstream components are damaged. Its low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.44) ensure predictable voltage limiting under high-current stress.
The device is rated for 175 °C maximum junction temperature and supports 200 A non-repetitive forward surge current (8.3 ms half-sine). Thermal resistance is specified at RθJA = 75 °C/W and RθJL = 15.4 °C/W, confirming suitability for lead-mounted PCB applications without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single transient surges up to 1500 W without failure |
| Breakdown Voltage VBR (min/max) | 14.3 V / 15.8 V at 1 mA - defines precise conduction onset threshold |
| Stand-Off Voltage VWM | 12.8 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| Clamping Voltage VC | 21.2 V at 70.8 A IPPM - limits voltage seen by protected IC during worst-case surge |
| Peak Pulse Current IPPM | 70.8 A - maximum transient current the device safely clamps per 10/1000 µs waveform |
| Junction Temperature Range | −55 °C to +175 °C - enables operation in under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive electronic modules per stress test requirements |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side return path in unidirectional clamp configuration |
| Cathode | Current exit point during forward conduction; high-impedance terminal in reverse bias | Connected to protected line (e.g., 12 V rail or CAN_H); color-banded end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over lifetime and improved humidity resistance vs. epoxy-only passivation |
| 1500 W peak pulse power (10/1000 µs) | Provides robust protection against IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including temperature cycling, HTRB, and ESD testing |
| Low clamping voltage (21.2 V @ 70.8 A) | Keeps protected ICs within safe operating area during 10/1000 µs transients |
| RoHS-compliant, lead-free, JESD 201 Class 2 whisker resistant | Meets global environmental compliance and long-term reliability requirements for surface-mount and through-hole assembly |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges above 12.8 V. Use Value: Limits rail voltage to ≤21.2 V during 70.8 A transients, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC inputs. IC Role / Device Role / Timing Role: TVS mounted across sensor signal and reference ground to suppress ESD and field-induced noise. Use Value: Sub-ns response ensures clamping occurs before 100 ns rise-time transients reach ADC front-end, preserving measurement integrity. |
| DC Motor Drive Flyback Suppression | Telecom Line Surge Protection |
Use Scenario: Snubbing inductive kickback from brushed DC motors in factory automation actuators. IC Role / Device Role / Timing Role: TVS connected anode-to-ground, cathode-to-H-bridge output to absorb reverse EMF spikes. Use Value: Handles 200 A non-repetitive surge (8.3 ms) and dissipates 1500 W peak energy, extending MOSFET lifetime. |
Use Scenario: Primary protection on Ethernet or RS-485 data lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS used in conjunction with GDT or MOV for staged protection. Use Value: Low clamping voltage (21.2 V) prevents damage to PHY ICs while maintaining signal integrity up to 100 Mbps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/52 | Lower peak power (400 W), SMA package (smaller footprint), same 15 V nominal VBR | Not suitable for 1500 W IEC 61000-4-5 Level 4; limited to board-level ESD or lower-energy transients | Select when space-constrained and surge energy is ≤400 W; requires layout revision due to SMD package |
| 1.5KE15AHE3_A | Same electrical specs and DO-201AD package; identical performance and pinout | No functional difference - alternate manufacturer marking for same Vishay die and construction | Drop-in replacement with identical sourcing and qualification; verify reel packaging code (A vs /51) matches production requirements |
Compared with 1N6275AHE3/51, SMAJ15A-E3/52 offers compact size but sacrifices 63% peak power handling, while 1.5KE15AHE3_A delivers identical protection in the same through-hole form factor-making it a direct manufacturing alternative without design change.
Availability
1N6275AHE3/51 is available at Aetrix Electronics and suitable for automotive control units, industrial motor drives, telecom infrastructure equipment, and sensor interface modules requiring stable component supply across extended product lifecycles.
Supply support for 1N6275AHE3/51 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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The 1N6275AHE3/51 belongs to Vishay's TRANSZORB® family of high-power TVS diodes, engineered specifically for ruggedized overvoltage protection in automotive, industrial, and telecommunications systems where failure is not acceptable.
FAQ
What is the breakdown voltage tolerance for 1N6275AHE3/51?
The 1N6275AHE3/51 has a guaranteed breakdown voltage range of 14.3 V to 15.8 V at 1 mA test current, per Vishay Document 88301. This ±5% tolerance ensures consistent clamping behavior across production lots and supports reliable system-level surge margin calculations without derating overhead.
Is 1N6275AHE3/51 suitable for bidirectional transient protection?
No - the 1N6275AHE3/51 is a unidirectional TVS diode, intended only for DC or single-polarity signal line protection. For bidirectional applications such as AC lines or differential buses, Vishay specifies CA-suffix parts like 1N6275CAHE3/51, which provide symmetrical clamping in both directions.
Does 1N6275AHE3/51 require a heatsink for standard operation?
No heatsink is required for typical transient suppression duty cycles. With RθJA = 75 °C/W and PD = 6.5 W, the 1N6275AHE3/51 remains within its 175 °C junction limit under pulsed conditions. Continuous power dissipation must stay below 6.5 W, but transient events are inherently short-duration and self-limiting.
How does the HE3 suffix affect the 1N6275AHE3/51 specification?
The HE3 suffix denotes RoHS-compliant, lead-free construction with JESD 201 Class 2 whisker resistance and AEC-Q101 qualification. It confirms automotive-grade reliability, including stress testing for temperature cycling, high-temperature reverse bias, and mechanical robustness - distinguishing it from commercial-grade E3-only variants.
Can 1N6275AHE3/51 be used in parallel for higher surge current handling?
Yes - multiple 1N6275AHE3/51 devices can be paralleled to increase total IPPM, provided matched VBR (±1%) units are selected and layout symmetry minimizes current imbalance. Vishay application notes confirm this technique for scaling beyond 70.8 A while maintaining clamping voltage consistency.
1N6275AHE3/51 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 70.8A
- 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
1N6275AHE3/51 FAQ
1.How can I place an order for 1N6275AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6275AHE3/51 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 1N6275AHE3/51 reliable?
The price and inventory of 1N6275AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6275AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1N6275AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6275AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6275AHE3/51?
1N6275AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6275AHE3/51 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 1N6275AHE3/51?
For technical support, including 1N6275AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6275AHE3/51 requirements.
6.How does Aetrix verify that 1N6275AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1N6275AHE3/51 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 1N6275AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1N6275AHE3/51?
All 1N6275AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6275AHE3/51, 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 1N6275AHE3/51 part is unused and in its original packaging.
Return procedure for 1N6275AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N6275AHE3/51 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 …
