My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE220CA-E3/51
- Part No.:
- 1.5KE220CA-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220CA-E3/51.pdf
- Description:
- TVS DIODE 185VWM 328VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,225
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE220CA-E3/51 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 220 V breakdown voltage (VBR = 209–231 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 328 V at 4.6 A, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5KE220CA-E3/51 datasheet, 1.5KE220CA-E3/51 pinout, 1.5KE220CA-E3/51 application, or 1.5KE220CA-E3/51 equivalent, this part delivers verified bidirectional clamping performance, RoHS-compliant matte tin leads, JESD201 Class 1A whisker resistance, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom surge protection design-in.
Technical Context
This TVS diode uses a glass passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating circuits without polarity constraints, unlike unidirectional variants requiring cathode orientation.
The device sustains 1500 W peak pulse power per 10/1000 µs waveform at 0.01% duty cycle, with thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient). Stand-off voltage is 185 V, reverse leakage ≤1 µA at VWM, and maximum clamping occurs at 328 V under rated IPPM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1 mA - defines reliable conduction onset under transient stress |
| VWM | 185 V - maximum continuous working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 328 V at 4.6 A - clamped voltage during full 1500 W surge, limiting downstream stress |
| PPPM | 1500 W - peak surge energy absorption capability per 10/1000 µs standard waveform |
| TJ range | –55 °C to +175 °C - supports operation in under-hood automotive and industrial environments |
| Package | Case Style 1.5KE - axial-leaded DO-201AD package with 0.375" lead length, UL 94 V-0 compliant |
| RoHS & Reliability | E3 suffix - RoHS-compliant, JESD201 Class 1A whisker tested, solderable per J-STD-002 |
Pinout & Package
1.5KE220CA-E3/51 uses a two-terminal axial-leaded DO-201AD (Case Style 1.5KE) package with no polarity marking - consistent with its bidirectional function. Leads are matte tin plated and rated for solder dip at 275 °C for 10 s.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No defined anode/cathode; terminals interchangeable - enables placement in AC or floating nodes without orientation check |
| Lead 1 / Lead 2 | Current conduction path | Both leads serve identical clamping function; thermal path optimized to case via 0.375" lead length (RθJL = 15.4 °C/W) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under repeated surge stress |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on PCB with thermal relief |
| <1 ns response time | Clamps transients before sensitive downstream components (e.g., MCU I/O, RS-485 transceivers) experience overvoltage damage |
| UL 94 V-0 molding compound | Prevents flame propagation in high-energy fault conditions - required for industrial and telecom safety certifications |
| AEC-Q101 qualified option | HE3 variant available - validated for automotive powertrain and body electronics applications (not applicable to E3/51) |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against back-EMF spikes from brushed DC motors and solenoids. IC Role / Device Role: Bidirectional clamping element placed across motor terminals or near driver IC inputs. Use Value: Limits transient voltage to ≤328 V, preventing latch-up or oxide rupture in 3.3 V/5 V logic interfaces and 20–60 V MOSFET gates. | Use Scenario: Surge suppression on 12 V battery-fed modules (BCM, lighting control) exposed to load dump (ISO 7637-2 Pulse 5a). IC Role / Device Role: Primary TVS on main power rail upstream of DC/DC converters and microcontrollers. Use Value: Absorbs up to 1500 W for 1 ms, clamping load dump peaks to safe levels while maintaining <1 µA leakage at nominal 13.5 V system voltage. |
| Telecom Line Interface | Consumer Sensor Hub Protection |
Use Scenario: Secondary protection on POTS or DSL line cards subjected to lightning-induced common-mode surges (IEC 61000-4-5). IC Role / Device Role: Bidirectional shunt device bridging tip/ring or differential pair before line transceiver IC. Use Value: Symmetrical clamping ensures equal protection regardless of surge polarity; 185 V VWM allows compatibility with ±130 V AC ringing signals. | Use Scenario: Input protection for MEMS accelerometer/gyro modules in smart home hubs exposed to ESD (IEC 61000-4-2) and board-level transients. IC Role / Device Role: Localized TVS on analog supply and I²C lines adjacent to sensor IC. Use Value: Sub-1 ns response prevents ESD-induced latch-up; low 1 µA leakage avoids bias error in precision analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | DO-214AA package (SMB), lower 600 W PPPM, same 220 V VBR range | Surface-mount only; unsuitable for through-hole legacy designs or high-current leaded layouts | Select when space-constrained PCBs require SMT assembly and 600 W rating suffices |
| 1.5KE220A-E3/51 | Unidirectional version; identical VBR, VC, PPPM, but marked cathode band and asymmetric clamping | Requires correct polarity placement; usable only where circuit ground reference is fixed and transients are known polarity | Choose only if system topology mandates unidirectional clamping (e.g., DC-biased signal lines) |
Compared with SMBJ220CA and 1.5KE220A-E3/51, the 1.5KE220CA-E3/51 uniquely provides through-hole mountability, 1500 W surge capacity, and polarity-agnostic protection - making it optimal for high-reliability industrial power rails and legacy telecom hardware where layout flexibility and robustness are prioritized.
Availability
1.5KE220CA-E3/51 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution modules, telecom line interface cards, and consumer sensor hub designs requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE220CA-E3/51 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting applications where failure modes include lightning strikes, inductive switching, and load dump events in industrial, automotive, and infrastructure systems.
FAQ
What is the clamping voltage of the 1.5KE220CA-E3/51 under full-rated surge current?
The 1.5KE220CA-E3/51 clamps to a maximum of 328 V when subjected to its rated peak pulse current of 4.6 A (10/1000 µs waveform). This value is measured per JEDEC standards and represents the upper limit of voltage seen by downstream circuitry during a 1500 W transient event. The clamping behavior is symmetrical in both directions due to its bidirectional construction, ensuring consistent protection regardless of surge polarity.
Is the 1.5KE220CA-E3/51 RoHS compliant and lead-free?
Yes, the 1.5KE220CA-E3/51 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and exemption 7a. Its matte tin-plated leads are lead-free, solderable per J-STD-002, and qualified to JESD201 Class 1A for whisker resistance. No lead or cadmium is present above threshold limits, and the UL 94 V-0 epoxy molding compound is halogen-free per Vishay's material declarations.
Can the 1.5KE220CA-E3/51 be used in automotive applications?
The 1.5KE220CA-E3/51 is rated for –55 °C to +175 °C operating junction temperature and meets key automotive environmental requirements, but it is not AEC-Q101 qualified. For production automotive use, Vishay offers the 1.5KE220CAHE3_B variant (HE3 suffix), which undergoes full AEC-Q101 stress testing. The 1.5KE220CA-E3/51 remains suitable for non-safety-critical aftermarket or prototyping applications where qualification is not mandated.
How does the 1.5KE220CA-E3/51 differ from the unidirectional 1.5KE220A-E3/51?
The 1.5KE220CA-E3/51 is bidirectional with no polarity marking and symmetrical clamping in both directions, whereas the 1.5KE220A-E3/51 is unidirectional, features a cathode band, and clamps only when reverse-biased. Both share identical VBR (209–231 V), VC (328 V), and PPPM (1500 W), but the CA version eliminates orientation-dependent layout constraints - critical for AC-coupled or floating signal paths where voltage polarity is undefined.
What is the maximum reverse leakage current for the 1.5KE220CA-E3/51 at its working voltage?
At its maximum stand-off voltage (VWM) of 185 V and ambient temperature of 25 °C, the 1.5KE220CA-E3/51 exhibits a maximum reverse leakage current (ID) of 1 µA. This low leakage ensures minimal power loss and signal integrity impact in always-on circuits such as battery-backed sensors or telecom line interfaces, where standby current budget is tightly constrained.
1.5KE220CA-E3/51 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- 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
1.5KE220CA-E3/51 FAQ
1.How can I place an order for 1.5KE220CA-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220CA-E3/51 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 1.5KE220CA-E3/51 reliable?
The price and inventory of 1.5KE220CA-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220CA-E3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE220CA-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220CA-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220CA-E3/51?
1.5KE220CA-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220CA-E3/51 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 1.5KE220CA-E3/51?
For technical support, including 1.5KE220CA-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220CA-E3/51 requirements.
6.How does Aetrix verify that 1.5KE220CA-E3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE220CA-E3/51 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 1.5KE220CA-E3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE220CA-E3/51?
All 1.5KE220CA-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220CA-E3/51, 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 1.5KE220CA-E3/51 part is unused and in its original packaging.
Return procedure for 1.5KE220CA-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220CA-E3/51 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 …
