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Diodes Incorporated 1.5KE75CA-T
- Part No.:
- 1.5KE75CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75CA-T.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
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Product details
Overview
1.5KE75CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 64.1V reverse standoff voltage, 71.3V minimum breakdown voltage at 1mA, 103V maximum clamping voltage at 14.6A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE75CA-T datasheet, 1.5KE75CA-T pinout, 1.5KE75CA-T application, or 1.5KE75CA-T equivalent, this TVS diode is selected for high-energy surge suppression in automotive power systems, industrial I/O interfaces, and telecom line protection where fast response (<1 ns), low clamping ratio (VC/VRWM ≈ 1.61), and AEC-Q200-aligned robustness are required.
Technical Context
This bidirectional TVS operates symmetrically-clamping both positive and negative transients without polarity dependence-making it suitable for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5 µA at 64.1V).
The device delivers 1500W peak pulse power (10/1000 µs waveform) with a clamping voltage of 103V at 14.6A, achieving a clamping ratio of 1.61 and temperature coefficient of +0.105%/°C for VBR, enabling predictable performance across wide thermal ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W - sustains 10/1000 µs surges up to 14.6A without failure |
| Reverse Standoff Voltage (VRWM) | 64.1 V - maximum continuous DC or RMS voltage before significant leakage |
| Breakdown Voltage (VBR) | 71.3 V min @ 1 mA - precise threshold for initiating avalanche conduction |
| Clamping Voltage (VC) | 103 V max @ 14.6 A - limits transient voltage seen by downstream circuitry |
| Peak Pulse Current (IPP) | 14.6 A - maximum non-repetitive surge current the device safely clamps |
| Operating Temperature | –55°C to +175°C - supports under-hood automotive and industrial environments |
| Leakage Current (IR) | ≤5 µA @ 64.1 V - minimal standby power loss and signal integrity impact |
Pinout & Package
Package: DO-201 axial-leaded package with tin-finished leads, UL 94V-0 epoxy molding, and 1.12 g mass. Moisture sensitivity level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during negative transient | One end of symmetrical P-N junction; no cathode marking on bidirectional variant |
| Cathode | Current entry during positive transient | Other end of symmetrical P-N junction; unmarked per bidirectional designation "C" |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Ensures stable VBR tolerance (±5%), low leakage, and long-term reliability under thermal cycling |
| Bidirectional configuration (suffix "C") | Enables single-device protection of AC signals or floating buses without polarity constraints |
| 1500W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4 kV line-to-line, 2 kV line-to-earth) surge immunity requirements |
| Fast response time (<1 ns) | Clamps transients before sensitive ICs experience overstress, preserving system uptime |
| RoHS-compliant, halogen-free "Green" design | Fulfills environmental compliance mandates (EU RoHS 3, JIS C0950) without compromising surge capability |
Applications
| Automotive Power Distribution | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤103V during 14.6A surges, preventing latch-up or gate oxide damage in downstream semiconductors. |
Use Scenario: Shielding PLC digital input modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient absorber on dry-contact or 24V sensor inputs. Use Value: Maintains signal integrity by clamping fast-rising transients (<1 ns) while adding negligible capacitance (<20 pF typical) to the signal path. |
| Telecom Line Interface | AC Adapter Input Stage |
Use Scenario: Safeguarding Ethernet PHYs and RS-485 transceivers connected to outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional surge limiter on differential pairs referenced to chassis ground. Use Value: Symmetric clamping (±103V) prevents common-mode voltage excursion beyond transceiver absolute maximum ratings. |
Use Scenario: Suppressing line-side surges entering switch-mode AC/DC adapters. IC Role / Device Role / Timing Role: MOV-coordinated primary TVS on bridge rectifier input. Use Value: Absorbs residual energy missed by MOVs, reducing stress on bulk capacitor and primary FET during repeated surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Same VRWM (64.1V) and VC (103V), but lower Ppk = 600W in SMB package | Lower surge handling; suited for space-constrained PCBs where 1500W is not required | Select when board area is critical and surge threat level is ≤Level 3 (IEC 61000-4-5) |
| 1.5SMC75CA | Identical electrical specs, but SMC (DO-214AB) surface-mount package instead of axial DO-201 | Eliminates through-hole assembly; requires reflow-compatible layout and thermal relief | Choose for automated SMT production and improved vibration resistance in mobile equipment |
Compared with 1.5KE75CA-T, SMBJ75CA trades surge capacity for compactness, while 1.5SMC75CA retains full 1500W capability in a surface-mount form-enabling design flexibility between through-hole ruggedness and SMT scalability without sacrificing clamping performance.
Availability
1.5KE75CA-T is available at Aetrix Electronics and suitable for automotive ECU protection, industrial I/O modules, telecom line interfaces, and AC adapter input stages requiring stable component supply and traceable sourcing.
Supply support for 1.5KE75CA-T 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
Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal devices, with manufacturing certified to IATF 16949 and quality systems aligned with AEC-Q200 for automotive components.
The 1.5KE series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where reliability under repetitive surge stress is mandatory.
FAQ
What does the "C" suffix in 1.5KE75CA-T indicate?
The "C" denotes a bidirectional configuration: the device clamps both positive- and negative-polarity transients symmetrically, unlike unidirectional variants (e.g., 1.5KE75A-T) that require correct polarity orientation. This eliminates installation errors in AC or floating circuits and simplifies layout for differential protection.
How does 1.5KE75CA-T compare to MOV-based protection?
Unlike metal-oxide varistors, 1.5KE75CA-T offers faster response (<1 ns vs. ~20–50 ns), tighter voltage tolerance (±5% VBR vs. ±10–20%), and no degradation after repeated surges. It complements MOVs by absorbing residual energy and protecting against fast-rising transients that MOVs cannot clamp quickly enough.
Is 1.5KE75CA-T suitable for automotive applications?
Yes-while not AEC-Q200 qualified itself, it is manufactured in IATF 16949-certified facilities and shares process and material qualifications with AEC-Q200-compliant variants. Its –55°C to +175°C operating range, glass-passivated junction, and robust surge rating make it widely deployed in automotive power distribution and body control modules.
What is the significance of the "-T" suffix in the part number?
The "-T" indicates tape-and-reel packaging: 1,000 units per 13-inch reel, optimized for automated SMT placement. This differs from "-B" (bulk packaging) and ensures consistent feeding, reduced handling damage, and compatibility with high-volume pick-and-place equipment in production environments.
1.5KE75CA-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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:
- DO-201
1.5KE75CA-T FAQ
1.How can I place an order for 1.5KE75CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75CA-T 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 1.5KE75CA-T reliable?
The price and inventory of 1.5KE75CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE75CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75CA-T?
1.5KE75CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75CA-T 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 1.5KE75CA-T?
For technical support, including 1.5KE75CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75CA-T requirements.
6.How does Aetrix verify that 1.5KE75CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE75CA-T 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 1.5KE75CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE75CA-T?
All 1.5KE75CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75CA-T, 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 1.5KE75CA-T part is unused and in its original packaging.
Return procedure for 1.5KE75CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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