My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE11-E3/73
- Part No.:
- 1.5KE11-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE11-E3/73.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:9,355
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE11-E3/73 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 10.5 V to 11.6 V breakdown voltage (VBR) at 1.0 mA test current, 9.40 V maximum standoff voltage (VWM), 1500 W peak pulse power rating (10/1000 µs), and clamps transients to ≤15.6 V at 96.2 A peak pulse current - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1.5KE11-E3/73 datasheet, 1.5KE11-E3/73 pinout, 1.5KE11-E3/73 application, or 1.5KE11-E3/73 equivalent, this page delivers verified electrical parameters, JEDEC-standard package dimensions, thermal resistance data (RθJA = 75 °C/W), polarity marking guidance, and AEC-Q101 qualification status where applicable - all confirmed from Vishay Document #88301 (Rev. 09-Aug-2022).
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device that enters avalanche conduction when reverse voltage exceeds its specified breakdown range. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling sub-nanosecond response to ESD and lightning-induced transients.
It is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), supports continuous power dissipation of 6.5 W on an infinite heatsink at TL = 75 °C, and maintains operation across -55 °C to +175 °C junction temperature range - with cathode indicated by a color band per JEDEC 1.5KE case standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V at 1.0 mA - defines precise clamping onset threshold for reliable overvoltage detection |
| VWM | 9.40 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 μA |
| VC @ IPPM | ≤15.6 V at 96.2 A - peak clamped voltage during 1500 W transient, limiting downstream stress |
| PPPM | 1500 W (10/1000 µs waveform) - sustains high-energy surges without failure in industrial environments |
| RθJA | 75 °C/W - enables thermal design margin estimation for PCB copper pour and ambient conditions |
| TJ range | -55 °C to +175 °C - supports under-hood automotive and high-temp industrial deployments |
| Package | JEDEC DO-201AD (Case Style 1.5KE) - axial-leaded, RoHS-compliant, matte tin-plated leads |
Pinout & Package
Package: DO-201AD (Case Style 1.5KE), axial-leaded, molded epoxy body meeting UL 94 V-0; cathode identified by color band on body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional clamp configuration; carries full surge current during forward conduction events |
| Cathode | Avalanche conduction terminal | Marked with color band; connected to protected line; initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal cycling and humidity |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) without degradation |
| Sub-nanosecond response time | Clamps transients within 1 ns - faster than MOVs or polymer-based protectors |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., inductive switch-off) |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance; suitable for lead-free reflow and wave soldering |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed between input rail and ground, absorbing >1000 W surges within nanoseconds. Use Value: Limits rail voltage to ≤15.6 V during 96.2 A transients, preventing damage to LDOs and microcontrollers downstream. | Use Scenario: Shielding 4–20 mA analog sensor outputs from ESD and field-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional 1.5KE11-E3/73 used with series resistor for signal-line clamping to VCC/GND. Use Value: Clamps negative transients to GND and positive transients to VCC via external bias, preserving 12-bit ADC accuracy. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered equipment front-end rectifiers and DC-DC controllers from induced lightning surges on outdoor cabling. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across input capacitor to suppress common-mode transients up to 1500 W. Use Value: Maintains 9.40 V working voltage while clamping 10/1000 µs surges to ≤15.6 V - compatible with 12 V nominal telecom supplies. | Use Scenario: Protecting BLDC motor driver ICs from inductive kickback during MOSFET switching in washing machine control boards. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to ground on low-side MOSFET source node. Use Value: Absorbs 200 A 8.3 ms surge (IFSM) without failure, preventing gate oxide rupture in driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | DO-214AA package (SMB), 11.1 V VBR, 12.3 V VC @ 92.5 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 (e.g., USB-powered peripherals) |
| 1.5SMC11A | DO-214AB package (SMC), 11.1 V VBR, 18.2 V VC @ 82.4 A, 1500 W PPPM, higher clamping voltage | Same power rating but 16% higher clamping voltage - may exceed downstream IC absolute max ratings | Choose 1.5SMC11A only if DO-214AB footprint is mandated and system can tolerate 18.2 V clamping |
Compared with 1.5KE11-E3/73, SMBJ11A offers smaller size but reduced surge handling, while 1.5SMC11A matches power rating but clamps 16.7% higher - making 1.5KE11-E3/73 optimal for cost-sensitive, high-energy protection where DO-201AD lead spacing and proven reliability are prioritized.
Availability
1.5KE11-E3/73 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feed applications requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for 1.5KE11-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, rectifiers, and protection devices with emphasis on reliability, AEC-Q101 qualification, and high-power transient handling.
The 1.5KE family was engineered for robust, high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without derating or complex external circuitry.
FAQ
What is the breakdown voltage range of the 1.5KE11-E3/73?
The 1.5KE11-E3/73 has a guaranteed breakdown voltage (VBR) range of 10.5 V to 11.6 V at 1.0 mA test current, measured per JEDEC standards. This tight ±5% tolerance ensures consistent clamping behavior across production lots and temperature extremes, critical for protecting 12 V systems where overvoltage margins are narrow. The 1.5KE11-E3/73 achieves this using a glass-passivated silicon junction optimized for stability.
Is the 1.5KE11-E3/73 RoHS compliant and qualified for automotive use?
Yes, the 1.5KE11-E3/73 carries the E3 suffix, confirming RoHS compliance and JESD 201 Class 1A whisker resistance. While the base 1.5KE11-E3/73 is commercial-grade, AEC-Q101 qualification applies to variants with HE3 suffix (e.g., 1.5KE11AHE3_B). For automotive applications requiring AEC-Q101, engineers should specify the HE3 version - the 1.5KE11-E3/73 itself meets all RoHS and JEDEC mechanical requirements but lacks formal automotive qualification.
How does the 1.5KE11-E3/73 compare to bidirectional TVS diodes like 1.5KE11CA?
The 1.5KE11-E3/73 is unidirectional and features a cathode band for polarity identification, whereas 1.5KE11CA is bidirectional with no polarity marking and symmetric clamping in both directions. The 1.5KE11-E3/73 provides lower clamping voltage (15.6 V vs. ~17.5 V for 1.5KE11CA) in the reverse direction but cannot suppress positive transients on grounded lines without additional biasing. Use 1.5KE11-E3/73 for DC rail protection; choose 1.5KE11CA only for AC or floating signal lines.
What is the maximum clamping voltage of the 1.5KE11-E3/73 under surge conditions?
The 1.5KE11-E3/73 clamps to a maximum of 15.6 V when subjected to its rated 96.2 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured at the device terminals and represents worst-case voltage seen by downstream components during a full 1500 W transient event. Designers must ensure all connected ICs have absolute maximum ratings exceeding 15.6 V to guarantee survivability.
Can the 1.5KE11-E3/73 be used in parallel to increase surge current handling?
No - the 1.5KE11-E3/73 should not be paralleled without current-sharing resistors or matched VBR bins, due to inherent parameter variation (±5% VBR) causing uneven current division and potential thermal runaway. Vishay's application notes explicitly advise against direct parallel connection. For higher surge capacity, select a single higher-rated device (e.g., 1.5KE12A or 1.5KE13A) or implement staged protection with upstream fusing. The 1.5KE11-E3/73 is validated for standalone 1500 W operation only.
1.5KE11-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 92.6A
- 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
1.5KE11-E3/73 FAQ
1.How can I place an order for 1.5KE11-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE11-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 1.5KE11-E3/73 reliable?
The price and inventory of 1.5KE11-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 1.5KE11-E3/73 is usually 5 days.
3.What payment methods are accepted for 1.5KE11-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE11-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE11-E3/73?
1.5KE11-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE11-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 1.5KE11-E3/73?
For technical support, including 1.5KE11-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE11-E3/73 requirements.
6.How does Aetrix verify that 1.5KE11-E3/73 is sourced from the original manufacturer or authorized distributors?
All 1.5KE11-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 1.5KE11-E3/73 meets industry standards.
7.What is the process for return or replacement of 1.5KE11-E3/73?
All 1.5KE11-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE11-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 1.5KE11-E3/73 part is unused and in its original packaging.
Return procedure for 1.5KE11-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE11-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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
