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Vishay General Semiconductor - Diodes Division 1.5SMC75CAHE3_A/H
- Part No.:
- 1.5SMC75CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC75CAHE3_A/H.pdf
- Description:
- TVS DIODE 64.1VWM 104VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,978
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Product details
Overview
1.5SMC75CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 75 V breakdown voltage (VBR = 71.3–78.8 V at 1 mA), 1500 W peak pulse power (10/1000 µs), and clamping voltage of 104 V at 14.6 A. It protects signal lines and power rails in automotive sensor units and industrial control interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC75CAHE3_A/H datasheet, 1.5SMC75CAHE3_A/H pinout, 1.5SMC75CAHE3_A/H application, or 1.5SMC75CAHE3_A/H equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial PCB designs requiring robust ESD and surge immunity without polarity constraints.
Technical Context
This device operates as a voltage-clamped shunt protector: when transient voltage exceeds its reverse standoff voltage (VWM = 64.1 V), it avalanches rapidly to divert surge current away from downstream circuitry. Its bidirectional symmetry enables use on AC-coupled or differential signal paths without polarity concerns.
Designed for repetitive 10/1000 µs surge waveforms at ≤0.01% duty cycle, it sustains 14.6 A peak pulse current (IPPM) with clamping voltage limited to 104 V, delivering predictable overvoltage protection while maintaining low leakage (<1 µA at VWM). Thermal resistance (RθJA = 75 °C/W) assumes mounting on 8.0 mm × 8.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - defines precise avalanche onset window for repeatable clamping threshold |
| VWM | 64.1 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 104 V at 14.6 A - clamped voltage during 1500 W surge, limiting stress on protected ICs |
| PPPM | 1500 W (10/1000 µs) - peak surge energy handling capacity compliant with IEC 61000-4-5 Level 4 |
| IPPM | 14.6 A - maximum non-repetitive surge current the device safely clamps without degradation |
| TJ max | +150 °C - junction temperature limit enabling operation in under-hood automotive environments |
| MSL Level | Level 1 (J-STD-020) - supports standard reflow without baking, reducing manufacturing overhead |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking - symmetric bidirectional construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path terminals | Identical bidirectional terminals - either end connects to protected line; no cathode band or polarity marking required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge tests on 2 Ω source impedance without failure |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes voltage overshoot during fast transients, protecting 75 V-rated components |
| MSL Level 1 rating | Enables direct placement into standard lead-free reflow profiles without pre-bake |
| Glass passivated junction | Ensures stable VBR and low leakage over 10+ year field life in humid environments |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs in vehicle door modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional shunt clamp absorbing ±100 V transients while preserving signal integrity on 12 V supply rails. Use Value: Prevents latch-up or destruction of transceivers during battery disconnection events without adding series impedance. |
Use Scenario: Safeguarding differential CAN_H/CAN_L lines in factory automation PLCs subjected to motor drive noise. IC Role / Device Role / Timing Role: Common-mode surge suppressor across twisted-pair bus, clamping both lines simultaneously to ground. Use Value: Maintains <1 ns response time and <10 pF junction capacitance to avoid CAN FD bit-rate degradation up to 5 Mbps. |
| Telecom Power Input Stage | Consumer Appliance Motor Control |
Use Scenario: Front-end protection of 48 V PoE-powered Ethernet switches against lightning-induced surges on DC input. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC/DC converters, triggered within 1 ns of transient onset. Use Value: Limits input rail excursion to ≤104 V, preventing converter shutdown and ensuring uninterrupted data transmission. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Snubber across motor terminals, clamping inductive kickback to safe levels for microcontroller GPIOs. Use Value: Eliminates need for external RC snubbers, reducing BOM count and board space while meeting IEC 61000-4-4 EFT immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Lower peak power (600 W), same VBR range, SMB package (smaller footprint, higher RθJA) | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges in space-constrained consumer designs | Select when board area is critical and surge threat level is ≤1 kV (1.2/50 µs) |
| 1.5KE75CA | Same 1500 W rating but axial DO-15 package; higher RθJA, no SMT compatibility | Requires through-hole assembly and manual rework; incompatible with automated SMT lines | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ75CA and 1.5KE75CA, the 1.5SMC75CAHE3_A/H uniquely delivers AEC-Q101 qualification, MSL Level 1, and SMC packaging - making it the only option among the three validated for high-volume automotive SMT production with full surge compliance and zero reflow risk.
Availability
1.5SMC75CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, telecom power supplies, and appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC75CAHE3_A/H 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, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for surface-mount transient suppression in harsh environments - emphasizing AEC-Q101 compliance, low clamping ratios, and robust surge endurance for mission-critical electronics.
FAQ
What does the "CA" suffix indicate in 1.5SMC75CAHE3_A/H?
The "CA" suffix denotes a bidirectional configuration: the 1.5SMC75CAHE3_A/H provides symmetrical clamping for both positive and negative transients, eliminating polarity concerns during layout. Unlike unidirectional "A" variants, it has no cathode marking and functions identically regardless of terminal orientation - essential for AC-coupled or differential signal protection where voltage polarity reverses.
Is 1.5SMC75CAHE3_A/H suitable for IEC 61000-4-5 surge testing?
Yes, the 1.5SMC75CAHE3_A/H is rated for 1500 W peak pulse power with a 10/1000 µs waveform, directly supporting IEC 61000-4-5 Level 4 (4 kV line-to-ground, 2 Ω source impedance). Its 104 V clamping voltage at 14.6 A ensures protected circuits remain below safe operating limits during standardized surge events - confirmed by Vishay's published test data and AEC-Q101 qualification.
How does the HE3 suffix affect the 1.5SMC75CAHE3_A/H specification?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification - meaning the 1.5SMC75CAHE3_A/H meets automotive-grade reliability standards including temperature cycling, humidity bias, and surge lifetime testing. It also specifies matte tin plating per JESD 22-B102 and whisker resistance per JESD 201 Class 2, distinguishing it from commercial-grade E3 or M3 variants.
What is the thermal resistance of 1.5SMC75CAHE3_A/H, and how does it impact layout?
The 1.5SMC75CAHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This value assumes optimal PCB copper area; reducing pad size increases thermal resistance and derates power handling. For sustained 6.5 W dissipation, ensure ≥64 mm² total copper per terminal and avoid routing heat-sensitive components nearby.
Can 1.5SMC75CAHE3_A/H replace unidirectional TVS diodes in existing designs?
No - the 1.5SMC75CAHE3_A/H is strictly bidirectional and cannot substitute for unidirectional TVS diodes like 1.5SMC75AHE3_A/H in DC-biased applications (e.g., single-rail power input), where forward conduction must be blocked. Its symmetrical behavior allows current flow in either direction during clamping, so using it in place of a unidirectional part may cause unintended forward conduction or increased leakage in polarized circuits.
1.5SMC75CAHE3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC75CAHE3_A/H FAQ
1.How can I place an order for 1.5SMC75CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC75CAHE3_A/H 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 1.5SMC75CAHE3_A/H reliable?
The price and inventory of 1.5SMC75CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC75CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC75CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC75CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC75CAHE3_A/H?
1.5SMC75CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC75CAHE3_A/H 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 1.5SMC75CAHE3_A/H?
For technical support, including 1.5SMC75CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC75CAHE3_A/H requirements.
6.How does Aetrix verify that 1.5SMC75CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC75CAHE3_A/H 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 1.5SMC75CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC75CAHE3_A/H?
All 1.5SMC75CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC75CAHE3_A/H, 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 1.5SMC75CAHE3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC75CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC75CAHE3_A/H Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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