My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE400-7003E3/54
- Part No.:
- 1.5KE400-7003E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE400-7003E3/54.pdf
- Description:
- TVS DIODE 324VWM 574VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:3,818
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE400-7003E3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal paths. It features a 360 V to 440 V breakdown voltage range, 1500 W peak pulse power (10/1000 µs), clamping voltage of 574 V at 2.6 A, and operates across –55 °C to +175 °C. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching spikes in industrial power supplies.
For engineers reviewing the 1.5KE400-7003E3/54 datasheet, 1.5KE400-7003E3/54 pinout, 1.5KE400-7003E3/54 application, or 1.5KE400-7003E3/54 equivalent, this page delivers verified electrical specs, JEDEC-standard package details, clamping performance under 10/1000 µs surges, thermal derating curves, and RoHS-compliant commercial-grade sourcing support.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its 1500 W peak pulse power rating applies to non-repetitive 10/1000 µs waveforms with ≤0.01% duty cycle, and it maintains stable clamping up to 175 °C junction temperature.
It exhibits a typical thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient), enabling reliable operation on PCBs without heatsinks for short-duration transients. The device complies with JEDEC standards for transient suppression and meets UL 497B recognition for protector classification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 360 V min / 440 V max at 1 mA test current - defines minimum voltage at which clamping initiates reliably |
| Stand-off Voltage (VWM) | 324 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| Clamping Voltage (VC) | 574 V at 2.6 A peak pulse current - limits transient voltage seen by protected circuitry |
| Peak Pulse Power (PPPM) | 1500 W (10/1000 µs waveform) - energy-handling capacity for single lightning or ESD-like events |
| Operating Temperature | –55 °C to +175 °C - supports deployment in automotive engine bays and industrial motor drives |
| RoHS Compliance | E3 suffix indicates RoHS-compliant, commercial-grade construction per JESD201 Class 1A whisker testing |
| Thermal Resistance (RθJL) | 15.4 °C/W - enables direct lead-solder thermal path for transient power dissipation without heatsink |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated axial leads (0.042" diameter), UL 94 V-0 rated, 0.375" lead length standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive overvoltage events |
| Cathode | Clamping reference terminal | Marked with color band; connected to higher-potential side; defines clamping threshold relative to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges on 2 Ω source impedance without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive downstream components experience damaging overvoltage |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts) |
| UL 497B recognized | Validated for telecom and industrial interface protection per safety-critical surge standards |
Applications
| Industrial Motor Drives | Telecom Power Feeds |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sense circuits against inductive kickback from IGBTs and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS placed across DC bus or between gate and source to clamp negative-going transients and prevent latch-up. Use Value: Limits transient voltage to ≤574 V, preserving 600 V-rated MOSFETs and isolated amplifiers under 10/1000 µs surges up to 2.6 A. |
Use Scenario: Surge protection on -48 V DC power feeds entering telecom base station cabinets exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Primary-level TVS on input rail, upstream of DC/DC converters and PMICs. Use Value: Absorbs 1500 W pulses without failure, maintaining <1 µA leakage at 324 V to avoid system standby current penalties. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping diode on power rail feeding MCU and CAN/LIN PHYs. Use Value: Withstands 175 °C ambient operation and clamps 12 V system transients to safe levels for 3.3 V logic interfaces. |
Use Scenario: Shielding 4–20 mA current loop receivers and precision ADC front-ends from field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Low-leakage TVS on analog input terminals, placed before protection resistors and op-amp inputs. Use Value: Delivers <1 µA reverse leakage at 324 V, preventing measurement offset errors while clamping 10/1000 µs transients to 574 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ400A-E3/52 | DO-214AA package; 400 V standoff; 600 W PPPM; lower power rating and smaller footprint | Better suited for space-constrained PCBs with moderate surge requirements (IEC 61000-4-5 Level 2) | Select when board area is limited and peak surge energy does not exceed 600 W |
| 1.5KE400A-E3/54 | Tighter VBR tolerance (380–420 V vs. 360–440 V); same 1500 W rating and 1.5KE package | Preferred where precise clamping threshold is required, e.g., in regulated DC bus protection | Choose for improved VBR consistency without changing layout or thermal design |
Compared with 1.5KE400-7003E3/54, SMBJ400A-E3/52 offers compact size but reduced surge margin, while 1.5KE400A-E3/54 provides tighter breakdown control within identical mechanical and thermal constraints-enabling drop-in replacement where tighter VBR spec is critical.
Availability
1.5KE400-7003E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, telecom power feeds, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply and full traceability.
Supply support for 1.5KE400-7003E3/54 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 high-reliability diodes, rectifiers, and protection devices for demanding industrial and automotive environments.
The 1.5KE series was engineered for robust, high-power transient suppression in harsh environments-targeting applications where failure due to voltage surges must be eliminated, such as power conversion, transportation electronics, and infrastructure equipment.
FAQ
What is the exact breakdown voltage range for 1.5KE400-7003E3/54?
The 1.5KE400-7003E3/54 has a guaranteed breakdown voltage (VBR) range of 360 V minimum to 440 V maximum at 1 mA test current, measured per JEDEC standard. This range ensures consistent clamping initiation across production lots and temperature extremes from –55 °C to +175 °C. The 1.5KE400-7003E3/54 achieves this using a glass-passivated silicon junction structure validated for long-term stability under repetitive surge stress.
Is 1.5KE400-7003E3/54 unidirectional or bidirectional?
The 1.5KE400-7003E3/54 is a unidirectional transient voltage suppressor, indicated by the absence of "C" or "CA" suffix. It functions like a Zener diode in reverse bias and conducts only when reverse voltage exceeds its breakdown threshold. Its cathode is marked with a color band, and it must be oriented correctly in-circuit to protect against negative-going transients on positive rails. The 1.5KE400-7003E3/54 is not rated for bidirectional clamping.
What is the clamping voltage of 1.5KE400-7003E3/54 at its rated peak pulse current?
At its rated peak pulse current of 2.6 A (10/1000 µs waveform), the 1.5KE400-7003E3/54 clamps to a maximum of 574 V. This value is specified in the Vishay datasheet (Document 88301, Table on p.3) and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events. The 1.5KE400-7003E3/54 maintains this clamping performance across its full operating temperature range.
Does 1.5KE400-7003E3/54 meet RoHS and automotive qualification standards?
The 1.5KE400-7003E3/54 carries the E3 suffix, confirming RoHS compliance per EU Directive 2002/95/EC and JESD201 Class 1A whisker testing. However, it is designated for commercial-grade use only-not AEC-Q101 qualified. For automotive applications, Vishay specifies the HE3 suffix (e.g., 1.5KE400AHE3/54) for high-reliability, AEC-Q101-qualified variants. The 1.5KE400-7003E3/54 remains suitable for industrial and telecom use where extended temperature operation (–55 °C to +175 °C) is required.
What package type and lead configuration does 1.5KE400-7003E3/54 use?
The 1.5KE400-7003E3/54 uses the standardized Case Style 1.5KE: an axial-leaded, molded epoxy package with 0.042" diameter matte tin-plated leads, 0.375" lead length, and UL 94 V-0 flammability rating. It is supplied in 13" paper tape and reel (54 = 1400 units per reel). The 1.5KE400-7003E3/54 follows JEDEC outline DO-201AD and is compatible with standard axial through-hole assembly processes.
1.5KE400-7003E3/54 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 324V
- Voltage - Breakdown (Min):
- 360V
- Voltage - Clamping (Max) @ Ipp:
- 574V
- Current - Peak Pulse (10/1000µs):
- 2.6A
- 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
1.5KE400-7003E3/54 FAQ
1.How can I place an order for 1.5KE400-7003E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE400-7003E3/54 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 1.5KE400-7003E3/54 reliable?
The price and inventory of 1.5KE400-7003E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE400-7003E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE400-7003E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE400-7003E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE400-7003E3/54?
1.5KE400-7003E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE400-7003E3/54 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 1.5KE400-7003E3/54?
For technical support, including 1.5KE400-7003E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE400-7003E3/54 requirements.
6.How does Aetrix verify that 1.5KE400-7003E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE400-7003E3/54 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 1.5KE400-7003E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE400-7003E3/54?
All 1.5KE400-7003E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE400-7003E3/54, 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 1.5KE400-7003E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE400-7003E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE400-7003E3/54 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 …
