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Taiwan Semiconductor Corporation SMCJ58AH
- Part No.:
- SMCJ58AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58AH.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,119
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Product details
Overview
SMCJ58AH from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 58V working stand-off voltage (VWM), 64.4–71.2V breakdown voltage (VBR), and 93.6V maximum clamping voltage (VC) at 16A peak impulse current. It provides robust ESD and surge protection for automotive power rails and industrial DC inputs.
For engineers reviewing the SMCJ58AH datasheet, SMCJ58AH pinout, SMCJ58AH application, or SMCJ58AH equivalent, key selection criteria include clamping performance under ISO 7637-2 Pulse 1/2a/2b/3a/3b, AEC-Q101 qualification, junction temperature range (−55°C to +150°C), and unidirectional polarity marking on DO-214AB body.
Technical Context
The SMCJ58AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR (64.4–71.2V @ 1mA). Its glass-passivated junction ensures stable breakdown and low leakage (<1µA @ 58V), while fast response (<1.0ps) enables effective suppression of ESD and lightning-induced transients.
Thermally, it features RθJA = 55°C/W and RθJC = 10°C/W, supporting 5W steady-state dissipation at 25°C ambient. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, with matte tin-plated leads compliant to J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 64.4 V / 71.2 V @ 1 mA - Ensures reliable turn-on within defined tolerance band |
| VC @ IPPM | 93.6 V @ 16 A - Clamping voltage during 10/1000 µs surge, limiting downstream stress |
| PPK | 1500 W - Peak pulse power handling per single 1 ms transient per Fig.5 |
| IR @ VWM | <1 µA - Minimal leakage at rated stand-off, preserving system efficiency |
| TJ range | −55°C to +150°C - Supports operation in under-hood automotive and industrial environments |
| Package | DO-214AB (SMC) - Surface-mount footprint compatible with automated placement and reflow |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with cathode band marking for unidirectional polarity; matte tin-plated leads; 0.210 g typical weight; UL 94V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Marked by band; connected to protected line (e.g., 48V rail); conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance) |
| Glass passivated junction | Enhances long-term stability of VBR and reduces parameter drift over thermal cycling |
| Fast response time | <1.0 ps rise-to-VBR - Captures sub-nanosecond ESD events before sensitive ICs are damaged |
| Moisture sensitivity level 1 | No floor life limitation; safe for standard SMT assembly without dry-pack or baking |
Applications
| Automotive Power Rail Protection | Industrial DC Input Surge Suppression |
|---|---|
Use Scenario: Protecting 48V battery management systems (BMS) and ADAS domain controllers against load-dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges within 93.6V to safeguard downstream PMICs and microcontrollers. Use Value: Enables compliance with OEM-level surge immunity requirements without derating or parallel staging. | Use Scenario: Safeguarding programmable logic controller (PLC) 24V DC inputs from switching noise and induced lightning surges in factory automation. IC Role / Device Role / Timing Role: Standoff protector on field-side I/O terminals, absorbing repetitive 1500W pulses without degradation. Use Value: Eliminates need for external series impedance or RC snubbers due to low clamping ratio (VC/VWM = 1.61). |
| Telecom PoE Interface Protection | Consumer USB-C Power Delivery Line |
Use Scenario: Shielding IEEE 802.3bt Type 4 (90W) Power over Ethernet (PoE) data lines from ESD and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; SMCJ58AH used on DC bias rail only, coordinated with common-mode chokes. Use Value: Maintains signal integrity on differential pairs while providing >15kV contact ESD immunity per IEC 61000-4-2. | Use Scenario: Protecting USB-C CC and VBUS lines in portable docking stations exposed to hot-plug transients and connector ESD. IC Role / Device Role / Timing Role: Primary clamping device on 5–20V negotiated VBUS rail, sized for 16A peak current per USB PD 3.1 spec. Use Value: Achieves <100 ns clamping latency and <1 µA leakage at 20V, minimizing standby power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A | 600W rating, SMB package (smaller footprint), higher VC (96.8V @ 10A), same VWM/VBR range | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-current load dump | Select when board space is constrained and peak surge energy ≤600W |
| 1.5KE56A | Through-hole TO-204AA (DO-41), 1500W, VWM=45.2V, VC=93.6V @ 16A, no AEC-Q101 or ISO 7637-2 validation | Not automotive-qualified; requires wave soldering; lacks moisture level 1 assurance | Select for cost-sensitive industrial designs where AEC-Q101 and automated assembly are not required |
Compared with SMBJ58A and 1.5KE56A, the SMCJ58AH delivers superior surge robustness in surface-mount form with automotive-grade validation, enabling direct integration into high-reliability 48V/24V power domains without layout or qualification compromise.
Availability
SMCJ58AH is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for SMCJ58AH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, MOSFETs, and automotive-qualified components.
The SMCJ series was designed specifically for high-power, surface-mount transient suppression in harsh environments-emphasizing AEC-Q101 reliability, ISO 7637-2 compliance, and consistent clamping performance across −55°C to +150°C.
FAQ
What is the clamping voltage of SMCJ58AH and how is it measured?
The SMCJ58AH has a maximum clamping voltage (VC) of 93.6 V at 16 A peak impulse current (IPPM), tested using the 10/1000 µs double-exponential waveform per Fig.5 in the datasheet. This value represents the upper limit of voltage seen by downstream circuitry during a standardized surge event, ensuring protection of 58V-rated components.
Is SMCJ58AH suitable for bidirectional transient suppression?
No, SMCJ58AH is a unidirectional TVS diode, indicated by the "H" suffix and cathode band marking. For bidirectional protection, select the CAH-suffixed variant (e.g., SMCJ58CAH), which applies identical electrical characteristics in both polarities and omits the cathode band.
Does SMCJ58AH meet automotive qualification standards?
Yes, SMCJ58AH is AEC-Q101 qualified and validated for automotive use, including temperature cycling, high-temperature reverse bias (HTRB), and ESD testing. It also meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b requirements-making it suitable for engine control units, body electronics, and ADAS modules.
What is the thermal resistance profile of SMCJ58AH?
The SMCJ58AH has a junction-to-ambient thermal resistance (RθJA) of 55°C/W and junction-to-case resistance (RθJC) of 10°C/W, measured under standard JEDEC conditions. These values enable 5W steady-state power dissipation at 25°C ambient and inform PCB copper pour design for sustained surge duty cycles.
How does SMCJ58AH differ from SMCJ58H?
SMCJ58AH has tighter breakdown voltage tolerance (64.4–71.2 V vs. 64.4–78.7 V for SMCJ58H) and lower clamping voltage (93.6 V vs. 103 V at rated IPPM), resulting in improved protection margin for precision 58V systems. Both share identical package, power rating, and qualification status.
SMCJ58AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AB, SMC
- Series:
- SMCJ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
SMCJ58AH FAQ
1.How can I place an order for SMCJ58AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58AH 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 SMCJ58AH reliable?
The price and inventory of SMCJ58AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58AH is usually 5 days.
3.What payment methods are accepted for SMCJ58AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58AH?
SMCJ58AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58AH 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 SMCJ58AH?
For technical support, including SMCJ58AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58AH requirements.
6.How does Aetrix verify that SMCJ58AH is sourced from the original manufacturer or authorized distributors?
All SMCJ58AH 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 SMCJ58AH meets industry standards.
7.What is the process for return or replacement of SMCJ58AH?
All SMCJ58AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58AH, 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 SMCJ58AH part is unused and in its original packaging.
Return procedure for SMCJ58AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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