My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 1.5KE150CAHE3_B/C
- Part No.:
- 1.5KE150CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE150CAHE3_B/C.pdf
- Description:
- 1.5KW,150V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,492
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1.5KE150CAHE3_B/C 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 1500 W peak pulse power rating (10/1000 μs), 143 V minimum breakdown voltage (VBR), 128 V maximum standoff voltage (VWM), clamping voltage of 207 V at 7.2 A peak pulse current, and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 1.5KE150CAHE3_B/C datasheet, 1.5KE150CAHE3_B/C pinout, 1.5KE150CAHE3_B/C application, or 1.5KE150CAHE3_B/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under lightning- and switching-induced transients.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its symmetrical clamping action applies equally in both polarities, with no cathode marking - distinguishing it from unidirectional variants like 1.5KE150A.
It complies with UL 497B (QVGQ2 recognition) and meets JESD 201 Class 2 whisker resistance (HE3 suffix). The device is rated for 1500 W peak pulse power at 25 °C, derating linearly above TA = 25 °C per Figure 2, and supports repetitive surges at ≤0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 143 V / 158 V at 1 mA test current - defines reliable conduction onset during overvoltage events |
| VWM | 128 V maximum - ensures no conduction during normal operation up to rated system voltage |
| VC @ IPPM | 207 V at 7.2 A - limits protected circuit voltage during worst-case 10/1000 μs surge |
| PPPM | 1500 W - sustains single 1 ms transient without failure under standardized waveform |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| RθJL | 15.4 °C/W - supports direct lead-mount thermal dissipation without heatsink in PCB-constrained layouts |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: JEDEC case style 1.5KE - molded epoxy body (UL 94 V-0), matte tin-plated leads, 0.375" (9.5 mm) lead length, 0.210" × 0.190" (5.3 mm × 4.8 mm) body cross-section.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Not marked; symmetric bidirectional structure means either terminal serves as anode or cathode depending on polarity of transient |
| Cathode | Current exit point in forward bias | No color band or marking - distinguishes 1.5KE150CAHE3_B/C from unidirectional 1.5KE150A (which has cathode band) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term leakage stability under humidity and thermal stress |
| 1500 W peak pulse power (10/1000 μs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-to-line) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive downstream logic or analog circuitry experiences overstress |
| AEC-Q101 qualified (HE3_B variant) | Validated for automotive powertrain and body electronics per stress test requirements including HTGB and TCT |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial interface protection without additional certification burden |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role: Primary clamping element placed across input rails upstream of DC/DC converters and LDOs. Use Value: Limits rail voltage to ≤207 V during 100 V/100 ms load dump, preventing MOSFET avalanche failure and regulator latch-up. | Use Scenario: Shielding 4–20 mA current loop transmitters from ESD and inductive kickback in factory automation. IC Role / Device Role: Bidirectional shunt clamp on signal pair (e.g., between AI+ and AI– inputs). Use Value: Maintains signal integrity by clamping ±207 V transients while adding <1 pF capacitance - no bandwidth degradation. |
| Telecom Line Interface Protection | Consumer Power Adapter Surge Suppression |
Use Scenario: Safeguarding DSL/POE PHY interfaces against lightning-induced surges on outdoor copper lines. IC Role / Device Role: First-stage protector in hybrid protection circuit with GDT and series impedance. Use Value: Absorbs 1500 W energy per event per ITU-T K.20/K.21, enabling compliance with GR-1089-CORE. | Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for smart home devices. IC Role / Device Role: Final-clamp device across DC output after primary-side MOV and secondary-side filter. Use Value: Prevents 12 V/19 V output overvoltage from reaching USB-PD or PMIC inputs during transformer flyback failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | 600 W PPPM, SMC package (smaller footprint), higher VC/VBR ratio (1.45× vs. 1.43×) | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is ≤Level 3 (2 kV) |
| 1.5SMC150CA | Same 1500 W rating but SMC package, 10% higher VC (228 V), non-AEC-Q101 | Not qualified for automotive use; lacks UL 497B recognition | Choose for cost-sensitive industrial designs where AEC-Q101 and UL recognition are not required |
Compared with 1.5KE150CAHE3_B/C, SMBJ150CA offers smaller size but reduced surge handling, while 1.5SMC150CA matches power rating but omits automotive and safety certifications critical for Tier-1 automotive and telecom infrastructure deployments.
Availability
1.5KE150CAHE3_B/C is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor conditioning, telecom line interface, and consumer adapter protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for 1.5KE150CAHE3_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, rectifiers, MOSFETs, and protection devices with emphasis on reliability and application-specific validation.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom systems where robustness against lightning, ESD, and inductive switching surges is mandatory.
FAQ
What is the clamping voltage of the 1.5KE150CAHE3_B/C under a 10/1000 μs surge?
The 1.5KE150CAHE3_B/C clamps to a maximum of 207 V when subjected to its rated peak pulse current of 7.2 A under the standard 10/1000 μs waveform. This value is measured per Figure 9 in the Vishay datasheet (Document Number: 88301) and reflects worst-case bidirectional clamping performance at TA = 25 °C. Engineers must verify layout parasitics and trace inductance, as these can elevate effective clamping voltage in actual PCB implementations.
Is the 1.5KE150CAHE3_B/C AEC-Q101 qualified?
Yes, the 1.5KE150CAHE3_B/C is AEC-Q101 qualified. Per Vishay's ordering information note (page 3, Document Number: 88301), the HE3_B suffix explicitly denotes AEC-Q101 qualification for bidirectional 1.5KE devices ranging from 1.5KE6.8CAHE3_B to 1.5KE220CAHE3_B. This qualification covers temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing per AEC-Q101 Rev D.
How does the 1.5KE150CAHE3_B/C differ from the unidirectional 1.5KE150AHE3_B/C?
The 1.5KE150CAHE3_B/C is bidirectional with symmetrical clamping in both polarities and no cathode marking, whereas the 1.5KE150AHE3_B/C is unidirectional and features a cathode band. Electrically, the bidirectional version has identical VBR, VWM, and PPPM ratings but exhibits double the reverse leakage (ID) at VWM due to dual-junction structure. Its VF is 3.5 V at 100 A, matching the unidirectional part's forward drop below 1.5KE220A.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE150CAHE3_B/C?
The 1.5KE150CAHE3_B/C has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as specified in the Thermal Characteristics table (page 3, Document Number: 88301). This value enables direct heat transfer from the die to PCB copper via the leads, supporting reliable operation at full 1500 W pulse power when mounted with ≥0.375" (9.5 mm) lead length and adequate copper pour - no external heatsink required for single-event suppression.
Does the 1.5KE150CAHE3_B/C meet UL 497B requirements?
Yes, the 1.5KE150CAHE3_B/C carries Underwriters Laboratories recognition under UL 497B (file number E136766) for protector classification QVGQ2, applicable to both unidirectional and bidirectional devices in the 1.5KE family. This certification validates its suitability for telecom and industrial signal line protection without requiring end-equipment retesting, provided installation follows UL-recommended layout and clearance guidelines.
1.5KE150CAHE3_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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE150CAHE3_B/C FAQ
1.How can I place an order for 1.5KE150CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE150CAHE3_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 1.5KE150CAHE3_B/C reliable?
The price and inventory of 1.5KE150CAHE3_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 1.5KE150CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE150CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE150CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE150CAHE3_B/C?
1.5KE150CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE150CAHE3_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 1.5KE150CAHE3_B/C?
For technical support, including 1.5KE150CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE150CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE150CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE150CAHE3_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 1.5KE150CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE150CAHE3_B/C?
All 1.5KE150CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE150CAHE3_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 1.5KE150CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE150CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE150CAHE3_B/C 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 …
