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Taiwan Semiconductor Corporation 1.5SMC62CA
- Part No.:
- 1.5SMC62CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62CA.pdf
- Description:
- TVS DIODE 53VWM 85VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,756
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Product details
Overview
1.5SMC62CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 62V breakdown voltage (min 58.9V, max 65.1V), 1500W peak pulse power rating, 85.0V maximum clamping voltage at 18A, 1μA maximum leakage at 53.0V working stand-off voltage, and DO-214AB (SMC) package - deployed in telecom line cards and industrial I/O modules to absorb lightning-induced transients per ISO 7637-2 Pulse 1/2a/2b/3a/3b.
For engineers reviewing the 1.5SMC62CA datasheet, 1.5SMC62CA pinout, 1.5SMC62CA application, or 1.5SMC62CA equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance values (RθJA = 50°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance - all critical for ESD-hardened board-level design and automotive-grade transient immunity validation.
Technical Context
The 1.5SMC62CA operates as a bipolar avalanche diode with symmetrical forward and reverse conduction characteristics, enabling bidirectional transient suppression without polarity dependency. Its glass-passivated junction ensures stable VBR tolerance (±5% for A-suffix variants) and low temperature coefficient (0.104%/°C), supporting reliable operation across –55°C to +150°C junction temperatures.
It responds to fast-rising transients (<1.0 ps typical) and handles non-repetitive 10/1000μs waveform surges up to 18A peak impulse current (IPPM). Clamping performance is validated under standardized test conditions per ANSI/IEEE C62.35, with thermal derating applied above 25°C ambient using the published RθJA and RθJC (15°C/W) values.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 58.9V / 65.1V - defines guaranteed avalanche onset range; ensures consistent clamping start point across production lots and temperature |
| VWM | 53.0V - maximum continuous DC or RMS voltage the device blocks without significant leakage; sets system operating margin before conduction |
| VC@IPPM | 85.0V @ 18A - peak voltage seen across protected circuit during worst-case 10/1000μs surge; determines downstream component voltage stress |
| PPK | 1500W - peak pulse power handling capability; enables protection against high-energy transients like ISO 7637-2 Pulse 5a |
| IR@VWM | <1μA - ultra-low leakage at rated stand-off voltage; avoids loading sensitive analog or low-power control circuits |
| TJ max | +150°C - maximum junction temperature; supports operation in enclosed industrial enclosures or under sustained power dissipation |
| RθJA | 50°C/W - junction-to-ambient thermal resistance; used to calculate safe power derating on standard FR-4 PCB with minimal copper area |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals). Matte tin-plated leads, J-STD-002 solderable, UL 94V-0 molding compound, 0.210g weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge conduction path | No polarity marking required; either terminal serves as input/output for transient energy diversion in both directions |
| Case (body) | Thermal and mechanical interface | DO-214AB body provides primary heat path to PCB copper; requires adequate thermal pad area for RθJA compliance |
Key Features
| Feature | Design Value |
|---|---|
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated clamping response to automotive load-dump and inductive switching transients - eliminates need for external test validation |
| Fast response time <1.0 ps | Clamps sub-nanosecond ESD events before downstream ICs experience overstress - critical for USB, RS-485, and CAN physical layers |
| J-STD-020 Level 1 moisture sensitivity | Zero bake requirement prior to reflow; supports standard SMT assembly without special handling or dry-packing |
| RoHS and halogen-free (IEC 61249-2-21) | Meets global environmental compliance mandates for industrial and consumer end equipment without sacrificing surge robustness |
| Glass passivated junction | Stabilizes VBR over time and temperature; reduces parameter drift in long-life deployments such as base station power supplies |
Applications
| Industrial PLC Analog I/O Protection | Automotive Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: 24V DC power rail feeding analog sensor inputs in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional TVS placed upstream of LDO regulators and ADC front-ends to clamp ±100V transients within 10/1000μs. Use Value: Limits voltage excursion to ≤85.0V, preventing latch-up or permanent damage to 3.3V/5V signal chain components while maintaining <1μA leakage at 53.0V nominal rail. |
Use Scenario: 12V battery-supplied BCM module subjected to ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive switch-off) in vehicle chassis environments. IC Role / Device Role / Timing Role: Primary surge shunt on main power entry, coordinated with fuse and upstream filter to absorb 1500W peak energy without thermal runaway. Use Value: Withstands 18A peak impulse current and clamps to 85.0V, ensuring downstream MCU and CAN transceivers remain within absolute maximum ratings during 120V/500ms load dump events. |
| Telecom DSL Line Card Surge Protection | Medical Diagnostic Equipment Signal Port Guarding |
Use Scenario: RJ-11 interface on DSLAM line cards exposed to lightning-induced common-mode surges on twisted-pair copper loops. IC Role / Device Role / Timing Role: Paired bidirectional TVS devices on tip/ring lines referenced to chassis ground, providing symmetric clamping for differential and common-mode transients. Use Value: Delivers matched 58.9–65.1V VBR tolerance and 0.104%/°C tempco across both directions - maintains balance and prevents skew-induced signal distortion during surge events. |
Use Scenario: Low-voltage analog sensor ports (e.g., ECG electrode inputs) requiring ESD immunity per IEC 61000-4-2 Level 4 (±15kV contact) without adding series impedance. IC Role / Device Role / Timing Role: Direct-shunt TVS on signal traces adjacent to connectors, leveraging <1.0ps response to intercept ESD before reaching precision amplifier inputs. Use Value: Sub-1μA leakage at 53.0V ensures no DC offset or gain error in microvolt-level biopotential measurements; halogen-free construction meets medical material safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA (Bourns) | 64V VBR (min 60.8V, max 67.2V); 600W PPK; DO-214AA (SMB) package; higher RθJA (65°C/W) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a; better fit for space-constrained consumer ports | Select when board space is constrained and peak surge energy is ≤600W - not a drop-in replacement due to power and thermal differences |
| 1.5KE62CA (Taiwan Semiconductor) | Same VBR/VC specs but axial-leaded DO-15 package; 1500W rating; no SMT compatibility | Requires through-hole assembly; incompatible with automated placement; higher inductance limits high-frequency ESD effectiveness | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ64CA and 1.5KE62CA, the 1.5SMC62CA uniquely combines 1500W surge capacity, DO-214AB SMT footprint, and bidirectional symmetry - making it the only option among the three qualified for high-reliability automotive and industrial surface-mount power rail protection.
Availability
1.5SMC62CA is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, telecom line cards, and medical diagnostic equipment requiring stable component supply with full traceability and lifecycle management.
Supply support for 1.5SMC62CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with ISO 9001 and IATF 16949 certified production facilities.
The 1.5SMCxxCA series was engineered specifically for high-power, surface-mount transient suppression in harsh environments - targeting automotive, industrial automation, and telecom infrastructure where reliability under repetitive surge stress is mandatory.
FAQ
What is the breakdown voltage tolerance for 1.5SMC62CA?
The 1.5SMC62CA has a specified breakdown voltage range of 58.9V (minimum) to 65.1V (maximum) at 1.0mA test current, corresponding to a ±5% tolerance around the nominal 62V rating. This tight VBR distribution is achieved via process-controlled glass-passivated junctions and is validated per ANSI/IEEE C62.35 - ensuring predictable clamping onset across temperature and production lots.
Does 1.5SMC62CA meet automotive surge standards?
Yes, the 1.5SMC62CA is explicitly rated to meet ISO 7637-2 Pulse 1 (inductive switch-off), Pulse 2a/2b (battery connection/disconnection), and Pulse 3a/3b (capacitive coupling) waveforms. Its 1500W peak power rating and 85.0V clamping voltage at 18A enable compliance with these transients when mounted with appropriate PCB thermal relief, making it suitable for 12V/24V automotive power net protection.
How does the bidirectional design of 1.5SMC62CA affect PCB layout?
The 1.5SMC62CA has symmetrical terminals with no polarity marking, eliminating orientation constraints during placement. This simplifies PCB routing for differential or AC-coupled lines and avoids errors in high-volume manufacturing. Layout must still provide a low-inductance path to ground and sufficient copper area for thermal dissipation, as its RθJA of 50°C/W assumes standard 1-inch² pad exposure.
What is the maximum leakage current of 1.5SMC62CA at its working voltage?
The 1.5SMC62CA exhibits a maximum blocking leakage current (IR) of 1μA when biased at its 53.0V working stand-off voltage (VWM). This ultra-low leakage is confirmed at TA = 25°C and remains below 5μA up to 125°C - ensuring minimal impact on high-impedance sensor bias networks or battery-powered standby circuits.
Is 1.5SMC62CA compatible with lead-free reflow processes?
Yes, the 1.5SMC62CA uses matte tin-plated leads compliant with J-STD-002 and is qualified for standard Pb-free reflow profiles (peak 260°C, 10-second duration). Its DO-214AB package and UL 94V-0 molding compound withstand thermal cycling without delamination or parameter shift, and its J-STD-020 Level 1 moisture sensitivity eliminates pre-bake requirements.
1.5SMC62CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 18A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC62CA FAQ
1.How can I place an order for 1.5SMC62CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62CA 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 1.5SMC62CA reliable?
The price and inventory of 1.5SMC62CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62CA is usually 5 days.
3.What payment methods are accepted for 1.5SMC62CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62CA?
1.5SMC62CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62CA 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 1.5SMC62CA?
For technical support, including 1.5SMC62CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62CA requirements.
6.How does Aetrix verify that 1.5SMC62CA is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62CA 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 1.5SMC62CA meets industry standards.
7.What is the process for return or replacement of 1.5SMC62CA?
All 1.5SMC62CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62CA, 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 1.5SMC62CA part is unused and in its original packaging.
Return procedure for 1.5SMC62CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC62CA Tags
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