My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ54AHM3_A/I
- Part No.:
- SMCJ54AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ54AHM3_A/I.pdf
- Description:
- TVS DIODE 54VWM 87.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,079
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ54AHM3_A/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 54 V standoff voltage (VWM), 60.0–66.3 V breakdown range (VBR), and 1500 W peak pulse power (10/1000 μs). It clamps transients to ≤87.1 V at 17.2 A peak current and operates from –55 °C to +150 °C, targeting automotive-grade ESD and load-dump protection on power rails and signal lines.
For engineers reviewing the SMCJ54AHM3_A/I datasheet, SMCJ54AHM3_A/I pinout, SMCJ54AHM3_A/I application, or SMCJ54AHM3_A/I equivalent, this part delivers AEC-Q101 qualified reliability, halogen-free RoHS compliance, and validated clamping performance for 12 V/24 V automotive electronics, industrial power supplies, and sensor interface circuits requiring robust IEC 61000-4-2/4-5 immunity.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping behavior is defined by a 10/1000 μs double-exponential waveform, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead).
The device features a cathode band marking, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is rated for 200 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 0.104 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 54 V - Maximum continuous reverse operating voltage before conduction begins; sets system-level overvoltage trip threshold. |
| VBR @ IT = 1 mA | 60.0–66.3 V - Breakdown voltage range defining reliable avalanche initiation under standardized test conditions. |
| VC @ IPPM | ≤87.1 V - Clamped voltage at 17.2 A peak pulse current; determines maximum stress imposed on protected ICs. |
| PPPM | 1500 W - Peak pulse power handling capability for 10/1000 μs surges; defines surge energy absorption capacity. |
| IPPM | 17.2 A - Peak pulse current corresponding to VC; used to size PCB trace width and verify margin vs. system surge profiles. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments without derating. |
| Package | SMC (DO-214AB) - Surface-mount package with 8.0 mm × 8.0 mm copper pad thermal footprint; supports automated placement and high-power dissipation. |
Pinout & Package
SMCJ54AHM3_A/I is housed in an SMC (DO-214AB) package with two terminals: anode and cathode. The cathode is marked by a visible band on the body. Leads are matte tin-plated and solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal during normal operation | Connects to protected line (e.g., 12 V rail); conducts when transient exceeds VWM, shunting current to ground. |
| Anode | Reference/ground return path | Must be connected to low-impedance ground plane to ensure effective clamping; trace inductance directly impacts VC overshoot. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensors, supporting long-term reliability under thermal cycling and vibration. |
| Halogen-free & RoHS-compliant | Meets global environmental regulations (IEC 61249-2-21) and eliminates brominated flame retardants, enabling use in green manufacturing programs. |
| 1500 W peak pulse power | Withstands ISO 7637-2 Pulse 5a (load dump) surges up to 60 V for 400 ms without failure, protecting downstream DC-DC converters and microcontrollers. |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on protected components-critical for 3.3 V or 5 V logic interfaces sharing same supply rail. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile (260 °C peak), eliminating bake requirements and reducing assembly cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump transients (ISO 7637-2 Pulse 5a) and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and primary DC-DC converter input stage. Use Value: Clamps 12 V rail to ≤87.1 V during 17.2 A surges, preventing damage to buck controller ICs rated for 60 V max input. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors in factory automation PLC modules from ESD and inductive switching noise. IC Role / Device Role / Timing Role: TVS mounted at sensor connector entry point, referenced to local analog ground. Use Value: Sub-ns response limits voltage excursion to <100 V during 8 kV contact ESD (IEC 61000-4-2), preserving ADC reference integrity. |
| Telecom Power Supply Input | Consumer USB-C Power Delivery |
Use Scenario: Safeguarding AC-DC adapter secondary-side 48 V output against lightning-induced surges (IEC 61000-4-5, 2 kV line-earth). IC Role / Device Role / Timing Role: Primary overvoltage clamp on regulated 48 V bus feeding PoE injectors and baseband processors. Use Value: 1500 W rating absorbs 10/1000 μs surges without degradation, maintaining output regulation during telecom field deployments. |
Use Scenario: Transient suppression on USB-C VBUS line during hot-plug events and cable discharge events (CDE) in portable chargers. IC Role / Device Role / Timing Role: Unidirectional TVS between VBUS and chassis ground, upstream of USB PD controller. Use Value: 54 V VWM allows full 20 V PD3.1 operation while clamping CDE peaks to <90 V, preventing gate oxide rupture in GaN FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54AHE3_A/I | Lower PPPM (400 W), smaller SMA package (DO-214AC), higher RθJA (110 °C/W), same VWM/VBR specs. | Suitable only for lower-energy surges (e.g., IEC 61000-4-2 ESD), not ISO 7637-2 load dump. | Select when board space is constrained and surge threat level is limited to human-body-model ESD. |
| SMCJ54AHE3_A/I | Same electrical specs and SMC package, but RoHS-compliant without halogen-free certification (Pb-free only). | Acceptable for commercial/industrial use where halogen-free compliance is not mandated by OEM or regional regulation. | Choose for cost-sensitive designs where AEC-Q101 qualification is required but halogen-free status is optional. |
Compared with SMCJ54AHM3_A/I, SMAJ54AHE3_A/I offers reduced surge handling in a smaller footprint, while SMCJ54AHE3_A/I provides identical protection performance without halogen-free assurance-enabling trade-offs between regulatory compliance, thermal margin, and physical size.
Availability
SMCJ54AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power supply designs requiring stable component supply, AEC-Q101 validation, and halogen-free material compliance.
Supply support for SMCJ54AHM3_A/I 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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series targets high-energy transient suppression in harsh environments, with design focus on automotive, industrial, and telecom infrastructure where sustained surge immunity and long-term parametric stability are critical.
FAQ
What is the maximum clamping voltage of SMCJ54AHM3_A/I at its rated peak pulse current?
The SMCJ54AHM3_A/I has a maximum clamping voltage (VC) of 87.1 V when subjected to its rated peak pulse current (IPPM) of 17.2 A under the standard 10/1000 μs waveform. This value is measured at TA = 25 °C with specified mounting conditions (0.31" × 0.31" copper pads). Engineers must verify layout thermal performance to maintain this clamping level across operating temperature ranges.
Is SMCJ54AHM3_A/I qualified for automotive applications?
Yes, SMCJ54AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and confirmed in Vishay's ordering information table. This qualification covers stress tests including high-temperature operating life, temperature cycling, and mechanical shock-making SMCJ54AHM3_A/I suitable for under-hood and cabin-mounted automotive electronics such as body control modules and infotainment power supplies.
What does the "HM3" suffix signify in SMCJ54AHM3_A/I?
The "HM3" suffix in SMCJ54AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates AEC-Q101 compliance, "M" confirms halogen-free molding compound, and "3" specifies RoHS compliance. This distinguishes it from "HE3" (AEC-Q101 + RoHS, not halogen-free) and "E3" (RoHS only, commercial grade).
Can SMCJ54AHM3_A/I be used in bidirectional configurations?
No, SMCJ54AHM3_A/I is a unidirectional TVS diode, as confirmed by its part number ending in "A" (not "CA") and its cathode band marking. Bidirectional operation requires the "CA" variant (e.g., SMCJ54CA). Using SMCJ54AHM3_A/I in reverse-biased AC signal paths would result in forward conduction and potential failure; always match polarity to circuit topology.
What is the thermal resistance specification for SMCJ54AHM3_A/I?
SMCJ54AHM3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured under standard conditions (TA = 25 °C, 0.31" × 0.31" copper pads). These values assume optimal PCB copper area; actual RθJA increases significantly with reduced pad size or lack of internal ground planes.
SMCJ54AHM3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 54V
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- 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)
SMCJ54AHM3_A/I FAQ
1.How can I place an order for SMCJ54AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ54AHM3_A/I 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 SMCJ54AHM3_A/I reliable?
The price and inventory of SMCJ54AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ54AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMCJ54AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ54AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ54AHM3_A/I?
SMCJ54AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ54AHM3_A/I 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 SMCJ54AHM3_A/I?
For technical support, including SMCJ54AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ54AHM3_A/I requirements.
6.How does Aetrix verify that SMCJ54AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMCJ54AHM3_A/I 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 SMCJ54AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMCJ54AHM3_A/I?
All SMCJ54AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ54AHM3_A/I, 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 SMCJ54AHM3_A/I part is unused and in its original packaging.
Return procedure for SMCJ54AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ54AHM3_A/I Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
