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Vishay General Semiconductor - Diodes Division 1.5KE120CAHE3_B/C
- Part No.:
- 1.5KE120CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE120CAHE3_B/C.pdf
- Description:
- 1.5KW,120V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
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Product details
Overview
1.5KE120CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 120 V breakdown voltage (VBR = 114–126 V), 1500 W peak pulse power (10/1000 µs), clamping voltage of 165 V at 9.1 A, 1.0 µA max reverse leakage at 102 V, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE120CAHE3_B/C datasheet, 1.5KE120CAHE3_B/C pinout, 1.5KE120CAHE3_B/C application, or 1.5KE120CAHE3_B/C equivalent, this part delivers verified bidirectional clamping performance, AEC-Q101 qualification (HE3 suffix), RoHS-compliant matte tin leads, and UL 94 V-0 molded epoxy packaging - critical for automotive, industrial, and telecom surge protection design-in.
Technical Context
This device implements a glass-passivated silicon PN junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity concerns, while the 10/1000 µs waveform rating reflects standardized IEC 61000-4-5 surge immunity testing conditions.
The 1.5KE120CAHE3_B/C operates with a 102 V stand-off voltage (VWM) and maintains stable clamping up to 175 °C junction temperature, supported by thermal resistance values of RθJA = 75 °C/W and RθJL = 15.4 °C/W. Its unmarked body identifies it as bidirectional per Vishay's polarity convention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 114 V / 126 V - Ensures reliable conduction onset above normal operating voltage but below system damage threshold |
| VWM | 102 V - Maximum continuous working voltage before leakage exceeds 1.0 µA; defines safe DC/AC RMS operating margin |
| VC @ IPPM | 165 V at 9.1 A - Clamped voltage during 1500 W surge; determines protected circuit's maximum stress level |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; meets IEC 61000-4-5 Level 4 surge requirements |
| IPPM | 9.1 A - Peak surge current capability; defines minimum series impedance needed for coordination with upstream fuses |
| TJ range | –55 °C to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment |
| Package | Case Style 1.5KE - Axial-leaded DO-201AD package; compatible with through-hole PCB assembly and manual rework |
Pinout & Package
1.5KE120CAHE3_B/C uses the standard DO-201AD axial package (Case Style 1.5KE) with two unmarked leads - no cathode band, confirming bidirectional functionality per Vishay specification. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (reversible) | Bidirectional terminal pair | Either lead serves as anode or cathode depending on transient polarity; no polarity-dependent mounting required |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under repeated surge stress |
| AEC-Q101 qualified (HE3) | Validated for automotive-grade operation including temperature cycling, humidity, and mechanical shock per JESD22 |
| UL 94 V-0 epoxy molding | Self-extinguishing encapsulation prevents flame propagation in high-energy fault conditions |
| 1500 W 10/1000 µs rating | Supports coordination with Class II MOVs and provides higher energy absorption than 600 W TVS families |
| Sub-nanosecond response time | Clamps transients before downstream ICs experience damaging overvoltage - critical for protecting high-speed logic |
Applications
| Automotive Power Line 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 / Timing Role: Bidirectional shunt clamp placed across power rail upstream of LDOs and microcontrollers. Use Value: Limits voltage to ≤165 V during ISO 7637-2 Pulse 5a (load dump), preventing latch-up or gate oxide rupture in protected ICs. |
Use Scenario: Safeguarding analog front-ends of pressure/temperature sensors connected to long cables in factory automation. IC Role / Device Role / Timing Role: TVS placed at connector entry point to divert induced lightning surges (IEC 61000-4-5) before reaching ADC inputs. Use Value: Maintains signal integrity by clamping transients within 1 ns, avoiding saturation or offset drift in precision instrumentation amplifiers. |
| Telecom DSL Line Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding ADSL/VDSL line cards from induced surges on twisted-pair copper loops exposed to outdoor environments. IC Role / Device Role / Timing Role: Bidirectional TVS installed differential-mode across tip/ring lines, referenced to chassis ground. Use Value: Withstands repetitive 10/1000 µs surges up to 1500 W without degradation, meeting GR-1089-CORE telecom immunity standards. |
Use Scenario: Suppressing commutation spikes generated by brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Clamp placed across motor terminals to absorb inductive kickback energy during PWM switching. Use Value: Prevents MOSFET avalanche failure and EMI radiation by limiting spike amplitude to 165 V, reducing radiated emissions by >10 dBµV/m. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ120CA | Lower PPPM (600 W), smaller SMB package (surface-mount), VC = 193 V @ 3.1 A | Not suitable for high-energy IEC 61000-4-5 Level 4 surges; limited to board-level ESD and lower-energy transients | Select when space-constrained PCB layout requires SMT and surge threat level is ≤600 W |
| 1.5KE120AHE3_B/C | Unidirectional version; same VBR, VC, and PPPM, but includes cathode band marking and forward voltage spec (VF = 3.5 V @ 100 A) | Requires polarity-aware placement; only applicable in DC-biased circuits where reverse conduction must be blocked | Choose only for unidirectional rails (e.g., +12 V supply with ground reference); avoid in AC or floating systems |
Compared with SMBJ120CA and 1.5KE120AHE3_B/C, the 1.5KE120CAHE3_B/C uniquely combines high-energy 1500 W clamping, bidirectional symmetry, AEC-Q101 qualification, and through-hole manufacturability - making it the preferred choice for ruggedized, high-reliability surge protection where polarity independence and legacy assembly compatibility are essential.
Availability
1.5KE120CAHE3_B/C is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor modules, telecom line cards, and appliance motor control systems requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE120CAHE3_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, efficiency, and application-specific optimization.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and infrastructure applications where failure due to voltage surges is unacceptable.
FAQ
What is the clamping voltage of the 1.5KE120CAHE3_B/C under full-rated surge current?
The 1.5KE120CAHE3_B/C clamps to a maximum of 165 V when subjected to its peak pulse current of 9.1 A (10/1000 µs waveform). This value is measured per JEDEC test conditions and ensures downstream components see no more than 165 V during worst-case transients, directly supporting design margin calculations for protected ICs and MOSFETs.
Is the 1.5KE120CAHE3_B/C suitable for automotive applications?
Yes, the 1.5KE120CAHE3_B/C carries the HE3 suffix, indicating full AEC-Q101 qualification per Vishay documentation. It is validated for automotive use including temperature cycling, mechanical shock, and humidity testing - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under transient stress is mandatory.
How does the bidirectional nature of the 1.5KE120CAHE3_B/C affect PCB layout?
The 1.5KE120CAHE3_B/C has no polarity marking and functions identically in either orientation, simplifying PCB layout by eliminating cathode alignment checks. This allows direct placement across AC-coupled lines, transformer secondaries, or floating data buses without concern for lead direction - reducing assembly errors and enabling symmetric protection schemes.
What is the maximum operating temperature for the 1.5KE120CAHE3_B/C?
The 1.5KE120CAHE3_B/C supports a junction temperature range of –55 °C to +175 °C. Its thermal resistance values (RθJA = 75 °C/W, RθJL = 15.4 °C/W) allow sustained operation at full power in high-ambient environments when mounted with adequate lead length (0.375") and minimal copper pour, as confirmed in Vishay's Fig. 5 derating curve.
Does the 1.5KE120CAHE3_B/C meet UL safety certification requirements?
Yes, the 1.5KE120CAHE3_B/C is UL recognized under file E136766 for both unidirectional and bidirectional devices, compliant with UL 497B for protectors. Its UL 94 V-0 rated epoxy case ensures flame resistance, satisfying safety requirements for end equipment seeking UL listing in industrial and telecom applications.
1.5KE120CAHE3_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):
- 102V
- Voltage - Breakdown (Min):
- 114V
- Voltage - Clamping (Max) @ Ipp:
- 165V
- Current - Peak Pulse (10/1000µs):
- 9.5A
- 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
1.5KE120CAHE3_B/C FAQ
1.How can I place an order for 1.5KE120CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE120CAHE3_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 1.5KE120CAHE3_B/C reliable?
The price and inventory of 1.5KE120CAHE3_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 1.5KE120CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE120CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE120CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE120CAHE3_B/C?
1.5KE120CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE120CAHE3_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 1.5KE120CAHE3_B/C?
For technical support, including 1.5KE120CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE120CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE120CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE120CAHE3_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 1.5KE120CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE120CAHE3_B/C?
All 1.5KE120CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE120CAHE3_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 1.5KE120CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE120CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE120CAHE3_B/C Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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