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Vishay General Semiconductor - Diodes Division 1N6270A-E3/54
- Part No.:
- 1N6270A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1N6270A-E3/54.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,865
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Product details
Overview
1N6270A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 9.1 V breakdown voltage (VBR = 8.65–9.55 V at IT = 1.0 mA), 7.78 V stand-off voltage (VWM), 13.4 V clamping voltage (VC) at 112 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, microcontrollers, and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1N6270A-E3/54 datasheet, 1N6270A-E3/54 pinout, 1N6270A-E3/54 application, or 1N6270A-E3/54 equivalent, this part serves as a leaded, through-hole TVS solution with RoHS-compliant matte tin plating, JESD201 Class 1A whisker resistance, and UL 94 V-0 molded epoxy package - critical for automotive body electronics, industrial PLC I/O modules, and telecom line card surge protection where reliability under repetitive transient stress is required.
Technical Context
The 1N6270A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response time (<1 ns) to transient overvoltages. Its unidirectional polarity uses a cathode band marking and exhibits low incremental surge resistance, ensuring precise clamping during 10/1000 µs surges up to 112 A.
Thermally, it supports operation from −55 °C to +175 °C junction temperature, with RθJA = 75 °C/W and RθJL = 15.4 °C/W, allowing direct PCB-mount dissipation without heatsinking for short-duration pulses. It is rated for 200 A non-repetitive forward surge (8.3 ms half-sine) and maintains VF ≤ 3.5 V at 100 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 8.65–9.55 V at 1.0 mA - defines minimum voltage at which avalanche conduction begins; ensures reliable triggering above normal operating rail (e.g., 5 V or 9 V systems) |
| Stand-off Voltage VWM | 7.78 V - maximum continuous reverse working voltage; must exceed system nominal voltage to prevent leakage or false triggering |
| Clamping Voltage VC | 13.4 V at 112 A (10/1000 µs) - peak voltage seen by protected circuit during surge; limits stress on downstream ICs |
| Peak Pulse Power PPPM | 1500 W - energy-handling capacity for standardized 1 ms surge; enables robust protection against IEC 61000-4-5 Level 4 transients |
| Leakage Current ID | 50 µA max at VWM - ensures minimal standby power loss and no interference with high-impedance sensing circuits |
| Junction Temperature Range | −55 °C to +175 °C - supports under-hood automotive, industrial control, and outdoor telecom deployments |
| Package | Case Style 1.5KE - axial-leaded, DO-201AD outline; compatible with standard through-hole wave soldering and manual rework |
Pinout & Package
1N6270A-E3/54 uses a two-terminal axial-leaded package (Case Style 1.5KE / DO-201AD) with cathode identified by a color band. No internal pin numbering applies; terminals are functionally defined as anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected circuit | When used in unidirectional configuration, anode ties to ground or return path - enabling clamping of positive transients on cathode-connected rail |
| Cathode | Current exit terminal in forward bias; marked with band; connects to protected line | Placed on supply rail (e.g., +9 V) to shunt overvoltage to ground; clamps positive excursions above VBR while blocking normal reverse leakage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; eliminates surface degradation risks in humid environments |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 combination wave testing (40 Ω source) up to ±2 kV without failure |
| Sub-nanosecond response time | Clamps transients before sensitive logic or analog circuitry can be damaged - critical for protecting high-speed MCU GPIOs and ADC inputs |
| RoHS-compliant matte tin plating | Meets J-STD-002 and JESD 22-B102 solderability standards; eliminates lead-based solder compatibility issues in legacy assembly lines |
| UL 94 V-0 molded epoxy case | Provides flame-retardant mechanical encapsulation essential for industrial safety certifications (e.g., UL 508, EN 61800-5-1) |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protects 12 V supply rail and switch-sense inputs from load dump (ISO 7637-2 Pulse 5a) and inductive kickback from relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fused battery feed and microcontroller input; clamps transients within 1 ns to limit voltage to <14 V. Use Value: Prevents latch-up or gate oxide rupture in automotive-grade MCUs (e.g., S32K144) during repeated 100 V/100 ms load dump events. |
Use Scenario: Shields 24 V DC digital input channels from field-wiring induced surges (IEC 61000-4-5) in factory automation cabinets. IC Role / Device Role / Timing Role: Mounted across input optocoupler LED anode-cathode; conducts only during >13.4 V transients, diverting >100 A away from isolation barrier. Use Value: Maintains functional safety integrity (IEC 61508 SIL2) by preventing false triggering or destruction of input conditioning circuitry. |
| Telecom Remote Line Interface Unit (RLIU) | Consumer Appliance Motor Drive Board |
Use Scenario: Guards RS-485 transceiver power pins and data lines against lightning-induced surges on long outdoor copper runs. IC Role / Device Role / Timing Role: Paired with bidirectional TVS on data lines and unidirectional 1N6270A-E3/54 on VCC; clamps common-mode transients before they couple into differential receivers. Use Value: Enables compliance with Telcordia GR-1089-CORE Zone 3 surge immunity (±4 kV) without adding active crowbar circuitry. |
Use Scenario: Suppresses back-EMF spikes from brushed DC motors in washing machine control boards during commutation and stall conditions. IC Role / Device Role / Timing Role: Placed across motor terminals in parallel with flyback diode; handles higher-energy transients that exceed Schottky diode surge rating. Use Value: Extends lifespan of H-bridge MOSFETs (e.g., STP16NF06L) by limiting drain-source voltage overshoot to <14 V during 200 A inductive turn-off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0A | Surface-mount SMB package (3.5 × 3.5 mm); 9.0 V VWM, 14.4 V VC at 103 A; 600 W PPPM | Lower power rating and SMT-only mounting; unsuitable for high-energy 1500 W surges or through-hole legacy designs | Select when board space is constrained and surge energy is limited to IEC 61000-4-5 Level 2 (1 kV); not a drop-in replacement for 1N6270A-E3/54 |
| 1.5KE9.1A | Same electrical specs and DO-201AD package; identical VBR, VWM, VC, and PPPM; differs only in packaging suffix (E3/54 = tape-and-reel, standard 1.5KE9.1A = bulk) | No functional difference; both meet same Vishay specification 88301 and share identical thermal and surge performance | Direct form-fit-function alternative; 1.5KE9.1A is the base-series designation - 1N6270A-E3/54 is the exact same die in RoHS-compliant, whisker-tested, tape-and-reel format |
Compared with SMBJ9.0A, the 1N6270A-E3/54 delivers 2.5× higher surge power handling and proven reliability in high-temperature through-hole assemblies; compared with 1.5KE9.1A, it offers identical protection performance with enhanced process controls (JESD201 Class 1A, RoHS, UL 94 V-0), making it preferred for automotive and industrial production programs requiring traceable sourcing and extended lifecycle support.
Availability
1N6270A-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom line interface units requiring stable component supply across multi-year production cycles and qualification-controlled BOMs.
Supply support for 1N6270A-E3/54 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, and protection devices with emphasis on high-reliability, AEC-Q101-qualified components for automotive and industrial markets.
The 1N6270A-E3/54 belongs to Vishay's TRANSZORB® 1.5KE family - engineered specifically for high-energy transient suppression in harsh-environment power and signal lines, balancing clamping precision, surge endurance, and long-term parametric stability.
FAQ
What is the breakdown voltage range of the 1N6270A-E3/54?
The 1N6270A-E3/54 has a guaranteed breakdown voltage (VBR) range of 8.65 V to 9.55 V measured at 1.0 mA test current (IT). This tight tolerance ensures consistent clamping behavior across production lots and supports reliable overvoltage detection in 9 V nominal systems. The value is verified per Vishay specification 88301 and applies at TA = 25 °C.
Is the 1N6270A-E3/54 RoHS compliant and qualified for automotive use?
Yes, the 1N6270A-E3/54 carries the E3 suffix indicating RoHS compliance, JESD201 Class 1A whisker resistance, and commercial-grade qualification. While it is not AEC-Q101 certified itself, its base series (1.5KE9.1AHE3) is AEC-Q101 qualified - and the 1N6270A-E3/54 shares identical die, construction, and screening. For full automotive qualification, specify 1.5KE9.1AHE3_B.
How does the 1N6270A-E3/54 compare to the 1.5KE9.1A in terms of electrical performance?
The 1N6270A-E3/54 and 1.5KE9.1A are electrically identical: same VBR (8.65–9.55 V), VWM (7.78 V), VC (13.4 V), PPPM (1500 W), and thermal specs. The difference lies solely in packaging - 1N6270A-E3/54 denotes the same device in 13" paper tape-and-reel (54 per reel), while 1.5KE9.1A refers to the base part number in bulk packaging.
What is the maximum clamping voltage of the 1N6270A-E3/54 during a surge event?
The 1N6270A-E3/54 clamps to a maximum of 13.4 V when subjected to its rated peak pulse current of 112 A using the standard 10/1000 µs waveform. This clamping voltage is measured across the device terminals and represents the highest voltage imposed on the protected circuit during worst-case surge conditions per JEDEC test methods.
Can the 1N6270A-E3/54 be used in bidirectional configurations?
No - the 1N6270A-E3/54 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants in this family use the "CA" suffix (e.g., 1.5KE9.1CA). Using the 1N6270A-E3/54 in reverse-biased mode beyond its 7.78 V stand-off voltage will cause premature conduction and potential failure.
1N6270A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 112A
- 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
1N6270A-E3/54 FAQ
1.How can I place an order for 1N6270A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N6270A-E3/54 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 1N6270A-E3/54 reliable?
The price and inventory of 1N6270A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N6270A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1N6270A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N6270A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N6270A-E3/54?
1N6270A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N6270A-E3/54 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 1N6270A-E3/54?
For technical support, including 1N6270A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N6270A-E3/54 requirements.
6.How does Aetrix verify that 1N6270A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1N6270A-E3/54 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 1N6270A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1N6270A-E3/54?
All 1N6270A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1N6270A-E3/54, 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 1N6270A-E3/54 part is unused and in its original packaging.
Return procedure for 1N6270A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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