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Taiwan Semiconductor Corporation 1.5SMC62CH
- Part No.:
- 1.5SMC62CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC62CH.pdf
- Description:
- 1500W, 62V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:4,959
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Product details
Overview
1.5SMC62CH from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 62V breakdown voltage (min 55.8V, max 68.2V), 1500W peak pulse power rating, clamping voltage of 89.0V at 17A, DO-214AB (SMC) package, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the 1.5SMC62CH datasheet, 1.5SMC62CH pinout, 1.5SMC62CH application, or 1.5SMC62CH equivalent, key selection criteria include unidirectional vs. bidirectional configuration, clamping ratio (VC/VBR ≈ 1.32), ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and thermal resistance (RθJA = 50°C/W) for PCB layout and derating analysis.
Technical Context
The 1.5SMC62CH is a glass-passivated, single-die, bidirectional TVS diode optimized for fast transient suppression in 12V/24V automotive systems and industrial DC power inputs. Its sub-1ps response time ensures protection against ESD and lightning-induced surges before sensitive downstream circuitry is damaged.
It operates across -55°C to +150°C junction temperature range with <1μA leakage at 50.2V working stand-off voltage and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements for robust automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 55.8V / 68.2V - defines minimum guaranteed clamping onset and maximum variation tolerance under 1mA test current |
| VWM | 50.2V - maximum continuous reverse operating voltage; system must stay below this to avoid leakage-driven power loss |
| VC@IPPM | 89.0V @ 17A - clamped voltage during 10/1000μs surge; determines protected IC's voltage stress margin |
| PPK | 1500W - peak pulse power handling per IEEE C62.35; enables robustness against ISO 7637-2 Pulse 5a (load dump) |
| RθJA | 50°C/W - junction-to-ambient thermal resistance; dictates minimum copper area and airflow needed for sustained 6.5W steady-state dissipation |
| IR@VWM | <1μA - ultra-low leakage ensures minimal standby current drain in battery-powered or always-on systems |
| TJ max | +150°C - maximum junction temperature supports operation in under-hood automotive environments |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, bidirectional configuration with cathode band omitted (symmetrical terminals).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Both terminals function identically; no polarity marking required for bidirectional operation |
| Case (body) | Thermal interface | DO-214AB molded body provides mechanical mounting and contributes to RθJC = 15°C/W heat transfer to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power domains |
| ISO 7637-2 compliance | Withstands standardized automotive transients: Pulse 1 (inductive load disconnect), Pulse 2a/2b (battery line interruption), Pulse 3a/3b (switching noise) |
| Glass passivated junction | Enhances long-term reliability and stability of VBR under thermal cycling and humidity exposure |
| Fast response time <1ps | Clamps ESD events (IEC 61000-4-2) before logic-level ICs experience latch-up or gate oxide rupture |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally constrained supply chains |
Applications
| Automotive Power Rail Protection | Industrial DC Input Surge Suppression |
|---|---|
Use Scenario: Protecting 12V battery-fed ECUs (e.g., HVAC control modules) from load dump and jump-start transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤89.0V during 1500W pulses, preventing damage to 36V-rated input stages and enabling use of lower-cost downstream components. | Use Scenario: Safeguarding programmable logic controllers (PLCs) powered from 24V industrial supplies exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Bidirectional transient absorber on main DC input rail, coordinated with upstream fuses and filters. Use Value: Sub-1ps response ensures clamping occurs before 100ns-duration switching spikes propagate into analog sensor front-ends or communication interfaces. |
| Telecom Equipment Port Protection | Consumer Electronics USB/Power Port ESD Hardening |
Use Scenario: Shielding Ethernet PHY power pins and PoE injectors from induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Secondary surge protection stage following gas discharge tubes (GDTs), absorbing residual energy after coarse clamping. Use Value: 1500W rating allows coordination with GDTs to handle multi-kV lightning surges while maintaining low clamping voltage for silicon-level safety. | Use Scenario: Reinforcing USB-C PD port and auxiliary power inputs in smart home hubs against user-handling ESD and accidental AC adapter misconnection. IC Role / Device Role / Timing Role: Final-line TVS on VBUS and CC lines, placed adjacent to connectors per IEC 61000-4-2 Level 4 (8kV contact / 15kV air) requirements. Use Value: <1μA leakage at 50.2V prevents battery drain in portable devices; DO-214AB footprint enables compact dual-rail placement without sacrificing surge margin. |
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 | 64V VBR (min 57.6V), 600W PPK, DO-214AA (SMB) package, RθJA = 65°C/W | Lower power rating limits use to sub-10A surge events; smaller SMB package reduces thermal mass | Select when space-constrained layouts prioritize footprint over 1500W capability and automotive qualification is not required |
| 1.5KE62CA | 62V VBR, 1500W PPK, DO-201AD (Axial) through-hole package, higher RθJA (~75°C/W) | Through-hole mounting incompatible with fully SMT production; less suitable for high-vibration environments | Select only for legacy through-hole designs or prototyping where reflow compatibility is not needed |
Compared with SMBJ64CA and 1.5KE62CA, the 1.5SMC62CH delivers identical voltage rating with full 1500W capability in an AEC-Q101-qualified, surface-mount DO-214AB package-enabling automotive-grade reliability, automated assembly, and superior thermal performance (RθJA = 50°C/W) without layout redesign.
Availability
1.5SMC62CH is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power interface circuits requiring stable component supply and long-term lifecycle support.
Supply support for 1.5SMC62CH 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 global distribution and AEC-Q101 validation capabilities.
The 1.5SMCxxCH series was developed specifically for high-reliability automotive and industrial transient suppression, emphasizing glass-passivated junction stability, ISO 7637-2 compliance, and SMT manufacturability in harsh thermal environments.
FAQ
What does the "CH" suffix indicate in 1.5SMC62CH?
The "CH" suffix denotes a bidirectional configuration of the 1.5SMC62CH TVS diode. Unlike unidirectional variants (e.g., 1.5SMC62H), the CH version has symmetrical breakdown characteristics in both polarities, making it suitable for AC-coupled lines or DC rails where reverse voltage transients may occur. This eliminates the need for polarity-aware placement during automated assembly.
Is 1.5SMC62CH compliant with AEC-Q101 and ISO 7637-2?
Yes, the 1.5SMC62CH is explicitly qualified to AEC-Q101 for automotive applications and meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements. These qualifications are documented in Taiwan Semiconductor's official datasheet Version B2207 and verified through third-party test reports for transient immunity in 12V/24V vehicle electrical systems.
What is the clamping voltage of 1.5SMC62CH at its rated peak current?
The 1.5SMC62CH has a maximum clamping voltage (VC) of 89.0V at its peak impulse current (IPPM) of 17A, measured under the standard 10/1000μs double-exponential surge waveform. This clamping ratio (VC/VBR(min) ≈ 1.59) ensures protected circuitry remains within safe operating voltage margins during worst-case transients.
Can 1.5SMC62CH replace unidirectional 1.5SMC62H in existing designs?
No-1.5SMC62CH cannot directly replace unidirectional 1.5SMC62H without circuit review. While both share identical VBR, VWM, and PPK, the CH variant lacks polarity marking and conducts in both directions. Using it in place of a unidirectional part may cause unintended conduction during normal forward bias, disrupting DC biasing or causing excessive leakage in certain topologies.
What is the thermal resistance and maximum steady-state power dissipation of 1.5SMC62CH?
The 1.5SMC62CH has a junction-to-ambient thermal resistance (RθJA) of 50°C/W and a maximum steady-state power dissipation (PD) of 6.5W at TA = 25°C. Derating is required above 25°C per the datasheet's Fig.2 curve; at 100°C ambient, usable PD drops to approximately 3.2W, demanding adequate PCB copper area and airflow for thermal management.
1.5SMC62CH 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):
- 50.2V
- Voltage - Breakdown (Min):
- 55.8V
- Voltage - Clamping (Max) @ Ipp:
- 89V
- Current - Peak Pulse (10/1000µs):
- 17A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC62CH FAQ
1.How can I place an order for 1.5SMC62CH through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC62CH 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 1.5SMC62CH reliable?
The price and inventory of 1.5SMC62CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC62CH is usually 5 days.
3.What payment methods are accepted for 1.5SMC62CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC62CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC62CH?
1.5SMC62CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC62CH 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 1.5SMC62CH?
For technical support, including 1.5SMC62CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC62CH requirements.
6.How does Aetrix verify that 1.5SMC62CH is sourced from the original manufacturer or authorized distributors?
All 1.5SMC62CH 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 1.5SMC62CH meets industry standards.
7.What is the process for return or replacement of 1.5SMC62CH?
All 1.5SMC62CH units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC62CH, 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 1.5SMC62CH part is unused and in its original packaging.
Return procedure for 1.5SMC62CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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