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Vishay General Semiconductor - Diodes Division 1.5KE150AHE3_B/C
- Part No.:
- 1.5KE150AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150AHE3_B/C.pdf
- Description:
- 1.5KW,150V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,240
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Product details
Overview
1.5KE150AHE3_B/C 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), 143 V minimum breakdown voltage (VBR), 128 V maximum standoff voltage (VWM), 207 V clamping voltage at peak current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5KE150AHE3_B/C datasheet, 1.5KE150AHE3_B/C pinout, 1.5KE150AHE3_B/C application, or 1.5KE150AHE3_B/C equivalent, this part supports high-energy surge suppression in automotive ECUs, industrial power supplies, and telecom interface circuits where fast clamping (<1 ns), low leakage (<1 µA at VWM), and stable thermal performance up to +175 °C junction temperature are required.
Technical Context
This TVS diode operates as a silicon avalanche device with glass-passivated junction, delivering bidirectional-capable clamping action only in CA-suffix variants - the 1.5KE150AHE3_B/C is unidirectional, with cathode marked by a color band. Its 15.4 °C/W junction-to-lead thermal resistance enables effective heat dissipation under repetitive surge conditions.
The device complies with JEDEC standards for transient suppression, uses matte tin-plated leads solderable per J-STD-002, and meets UL 94 V-0 flammability requirements. The HE3 suffix denotes RoHS compliance and AEC-Q101 qualification, validated for automotive underhood applications per stress test conditions in the 88301 specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single high-energy surges without failure, suitable for IEC 61000-4-5 Level 4 compliance |
| Breakdown Voltage VBR (min/max) | 143 V / 158 V at 1 mA - defines precise avalanche initiation threshold for predictable clamping onset |
| Standoff Voltage VWM | 128 V - maximum continuous DC or RMS operating voltage before leakage exceeds 1 µA |
| Clamping Voltage VC at IPPM | 207 V - limits transient voltage seen by protected ICs during 7.2 A peak pulse (10/1000 µs) |
| Peak Pulse Current IPPM | 7.2 A - maximum non-repetitive surge current it can divert while maintaining clamping integrity |
| Junction Temperature Range | –55 °C to +175 °C - supports operation in under-hood automotive and industrial environments |
| Leakage Current at VWM | <1 µA - ensures minimal power loss and no interference with low-power sensor or logic circuits |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded, molded epoxy body with UL 94 V-0 rating; lead length 0.375" (9.5 mm); matte tin plating compliant with J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or return path; conducts during reverse-transient events |
| Cathode | High-side connection; marked with color band | Connected to protected line; blocks normal operation but avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable avalanche characteristics and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Enables protection against severe transients including ISO 7637-2 Pulse 5a/b and IEC 61000-4-5 combination wave |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock testing |
| Response time <1 ns | Clamps faster than MOVs or polymer-based protectors, preserving sensitive semiconductor timing margins |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or inductive switch-off) |
Applications
| Automotive Engine Control Unit (ECU) | Industrial 24 V DC Power Rail |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver power inputs from load-dump spikes (up to 40 V × 100 ms) and alternator ripple. IC Role / Device Role: Primary clamping element placed between battery rail and local regulator input. Use Value: Clamps 128 V standby rail transients to ≤207 V within nanoseconds, preventing latch-up or gate oxide damage in downstream PMICs. |
Use Scenario: Shields PLC analog input modules from inductive kickback when solenoids or contactors de-energize. IC Role / Device Role: Standoff-rated TVS on 24 V supply line upstream of filtering and regulation stages. Use Value: Withstands 7.2 A surge pulses without degradation, maintaining <1 µA leakage to avoid offset errors in precision 24-bit ADC front-ends. |
| Telecom Base Station Interface | Consumer Appliance Motor Drive Board |
Use Scenario: Safeguards RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor cabling. IC Role / Device Role: First-stage protector on data line pairs, coordinated with GDT or secondary TVS. Use Value: 207 V clamping voltage ensures transceiver common-mode range remains within ±250 V absolute max, meeting ITU-T K.21 recommendations. |
Use Scenario: Suppresses commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role: Unidirectional shunt across motor terminals or H-bridge supply rail. Use Value: 175 °C max junction temperature allows direct mounting near motor drivers without derating, supporting continuous duty cycle operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A | Lower peak power (600 W), smaller SMB package (surface-mount), 143–158 V VBR range identical | Designed for PCB space-constrained designs; lacks AEC-Q101 qualification in standard grade | Select when board area is limited and automotive qualification is not required |
| 1.5KE150A-E3/54 | Same electrical specs and 1.5KE package, but commercial-grade (non-AEC-Q101) and supplied in tape-and-reel with different packaging code | Approved for industrial/commercial use only; not validated for automotive temperature cycling or humidity bias | Select for cost-sensitive non-automotive applications where full AEC-Q101 compliance is unnecessary |
Compared with 1.5KE150AHE3_B/C, SMBJ150A trades off surge robustness and qualification for compactness, while 1.5KE150A-E3/54 retains identical protection performance but omits automotive reliability validation - making the HE3_B/C variant essential for Tier-1 automotive BOMs requiring traceable AEC-Q101 evidence.
Availability
1.5KE150AHE3_B/C is available at Aetrix Electronics and suitable for automotive engine control units, industrial 24 V power systems, and telecom interface protection requiring stable component supply, long-lifecycle support, and AEC-Q101-compliant sourcing.
Supply support for 1.5KE150AHE3_B/C 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where consistent clamping behavior and long-term stability under thermal stress are critical.
FAQ
What is the clamping voltage of the 1.5KE150AHE3_B/C under a 10/1000 µs surge?
The 1.5KE150AHE3_B/C clamps to a maximum of 207 V at its rated peak pulse current of 7.2 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and represents the upper limit of voltage imposed on protected circuitry during a worst-case transient event. The clamping performance is guaranteed across the full operating temperature range from –55 °C to +175 °C, ensuring consistent protection in automotive underhood deployments.
Is the 1.5KE150AHE3_B/C suitable for automotive applications?
Yes, the 1.5KE150AHE3_B/C is explicitly AEC-Q101 qualified, as confirmed in Vishay document 88301 revision 09-Aug-2022. The HE3 suffix denotes both RoHS compliance and full qualification for automotive use, including temperature cycling, high-temperature operating life, and mechanical shock testing. This makes the 1.5KE150AHE3_B/C appropriate for engine control modules, body control units, and ADAS power domains where reliability under extended thermal stress is mandatory.
How does the 1.5KE150AHE3_B/C differ from the 1.5KE150A-E3/54?
The 1.5KE150AHE3_B/C and 1.5KE150A-E3/54 share identical electrical specifications and package dimensions, but differ in qualification and packaging. The HE3_B/C variant carries AEC-Q101 qualification and ships in 13" paper tape and reel with code "C"; the E3/54 version is commercial-grade only and uses code "54". Both are RoHS-compliant, but only the HE3_B/C is approved for automotive production use per OEM requirements.
What is the standoff voltage rating for the 1.5KE150AHE3_B/C?
The 1.5KE150AHE3_B/C has a maximum working standoff voltage (VWM) of 128 V DC or RMS. This means it remains in high-impedance blocking mode with leakage current below 1 µA when exposed to continuous voltages up to 128 V. It is intended for use on 110–125 V nominal DC systems such as telecom power feeds or industrial control rails where transient headroom must be preserved without compromising steady-state efficiency.
Does the 1.5KE150AHE3_B/C have polarity marking, and how is it identified?
Yes, the 1.5KE150AHE3_B/C is a unidirectional TVS diode and features a visible color band (typically black or dark gray) on the cathode end of the axial package. This marking aligns with industry-standard diode polarity convention: the banded end connects to the higher-potential side of the protected circuit (e.g., +12 V rail), while the anode connects toward ground or return. Bidirectional variants (e.g., 1.5KE150CA) omit this band.
1.5KE150AHE3_B/C 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE150AHE3_B/C FAQ
1.How can I place an order for 1.5KE150AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150AHE3_B/C 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 1.5KE150AHE3_B/C reliable?
The price and inventory of 1.5KE150AHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE150AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE150AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150AHE3_B/C?
1.5KE150AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150AHE3_B/C 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 1.5KE150AHE3_B/C?
For technical support, including 1.5KE150AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150AHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE150AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE150AHE3_B/C 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 1.5KE150AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE150AHE3_B/C?
All 1.5KE150AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150AHE3_B/C, 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 1.5KE150AHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE150AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150AHE3_B/C Tags
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