My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCJ58CAHM3/H
- Part No.:
- SMCJ58CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58CAHM3/H.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,985
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ58CAHM3/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 58 V standoff voltage (VWM), 64.4–71.2 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) at 10/1000 μs waveform. It clamps transients to ≤93.6 V at 16.0 A IPPM and operates across –55 °C to +150 °C junction temperature, widely used in automotive sensor line protection.
For engineers reviewing the SMCJ58CAHM3/H datasheet, SMCJ58CAHM3/H pinout, SMCJ58CAHM3/H application, or SMCJ58CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (via HM3 suffix), halogen-free RoHS compliance, and compatibility with automated SMT assembly on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) to ESD and lightning-induced surges. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity sensitivity.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting reliable operation under repetitive surge conditions when mounted per recommended pad layout. The device meets MSL Level 1 per J-STD-020 with 260 °C lead-free reflow peak.
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 at IT = 1.0 mA - Confirmed breakdown range ensuring predictable turn-on threshold |
| VC @ IPPM | 93.6 V at 16.0 A - Clamped voltage during 10/1000 μs surge, defining protected circuit stress level |
| PPPM | 1500 W - Peak transient energy handling capacity under standardized waveform |
| ID @ VWM | 1.0 μA - Low leakage current preserving signal integrity in high-impedance lines |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments |
| Package | SMC (DO-214AB) - Industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
Pinout & Package
SMCJ58CAHM3/H uses a 2-terminal SMC (DO-214AB) package with no polarity marking for bidirectional operation. Terminals are matte tin-plated and solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | No functional distinction - terminals interchangeable; clamping occurs identically in both directions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Halogen-free & RoHS-compliant | Meets environmental compliance requirements for modern vehicle and industrial electronics manufacturing |
| Low incremental surge resistance | Enables tighter clamping voltage margin versus competing TVS devices at same PPPM rating |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking preconditioning |
| Glass passivated junction | Provides stable VBR over time and improved resistance to humidity-induced parameter drift |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver I/O pins against load dump and ISO 7637-2 pulses in engine control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching transceiver ESD structure. Use Value: Limits transient voltage to ≤93.6 V, preventing damage to 58 V-rated transceivers while maintaining signal fidelity via <1.0 μA leakage. |
Use Scenario: Safeguarding differential CAN H/L lines in factory automation gateways exposed to motor drive switching noise. IC Role / Device Role / Timing Role: Common-mode surge suppressor bridging CAN H and CAN L to ground, leveraging symmetrical clamping behavior. Use Value: Withstands 1500 W surges without degradation, enabling robust communication in electrically noisy plant-floor environments. |
| Consumer Power Adapter Input Stage | Telecom DSL Line Interface |
|
Use Scenario: Secondary-side overvoltage suppression on 58 V DC bus in USB-PD compliant wall adapters. IC Role / Device Role / Timing Role: Standoff-regulated clamp absorbing inductive kickback from synchronous rectifier MOSFETs. Use Value: 58 V VWM aligns precisely with adapter output regulation tolerance, minimizing false triggering during normal operation. |
Use Scenario: Protecting ADSL/VDSL line drivers from lightning-induced surges on twisted-pair subscriber loops. IC Role / Device Role / Timing Role: Bidirectional protector placed between transformer secondary and line driver IC input. Use Value: 93.6 V clamping voltage ensures driver ICs rated for 100 V absolute maximum survive Category A/B surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58CA-E3/57T | Lower PPPM (400 W), SMA package (smaller thermal mass), higher RθJA (110 °C/W) | Not suitable for automotive under-hood use due to lower surge rating and derated thermal performance | Select only for space-constrained consumer applications with <400 W surge exposure |
| SMCJ58AHE3_A/H | Unidirectional version; identical VWM/VBR/PPPM but cathode-marked; lacks bidirectional symmetry | Requires correct polarity placement; unsuitable for AC-coupled or floating differential lines | Choose only when circuit topology enforces fixed polarity and grounding scheme permits unidirectional clamping |
Compared with SMCJ58CAHM3/H, SMAJ58CA-E3/57T offers reduced surge robustness and thermal capability, while SMCJ58AHE3_A/H sacrifices bidirectional flexibility for identical clamping specs-making SMCJ58CAHM3/H optimal for automotive and differential interface protection where polarity independence and AEC-Q101 compliance are mandatory.
Availability
SMCJ58CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus systems, and telecom line protection requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for SMCJ58CAHM3/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 designs and manufactures discrete semiconductors including diodes, MOSFETs, and TVS devices, with emphasis on high-reliability, automotive-qualified components.
The SMCJ series targets high-energy transient suppression in harsh environments, specifically engineered for automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust surge immunity.
FAQ
What does the 'HM3' suffix indicate in SMCJ58CAHM3/H?
The HM3 suffix in SMCJ58CAHM3/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms the device meets automotive reliability standards including temperature cycling, mechanical shock, and humidity testing-critical for under-hood and ADAS sensor applications. SMCJ58CAHM3/H is not merely commercial-grade; its HM3 designation guarantees validated performance in automotive environments.
Is SMCJ58CAHM3/H bidirectional, and how does that affect PCB layout?
Yes, SMCJ58CAHM3/H is a bidirectional TVS diode with no polarity marking-both terminals are functionally identical. This eliminates orientation concerns during automated placement and allows symmetric placement across differential lines like CAN H/L or RS-485 A/B. Unlike unidirectional variants, SMCJ58CAHM3/H requires no cathode band alignment, reducing assembly errors and simplifying layout for floating or AC-coupled signal paths.
What is the clamping voltage of SMCJ58CAHM3/H at its rated surge current?
The clamping voltage (VC) of SMCJ58CAHM3/H is 93.6 V at 16.0 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the maximum voltage imposed on protected circuitry during a full-rated surge event. Engineers use this figure to verify that downstream ICs-such as CAN transceivers or ADC front-ends-remain within their absolute maximum voltage ratings when SMCJ58CAHM3/H is active.
Can SMCJ58CAHM3/H replace SMCJ58AHE3_A/H in a design?
No-SMCJ58CAHM3/H cannot directly replace SMCJ58AHE3_A/H without layout review. While both share identical VWM (58 V), VBR, and PPPM (1500 W), SMCJ58AHE3_A/H is unidirectional and requires correct cathode orientation. Substituting SMCJ58CAHM3/H introduces bidirectional clamping, which may alter protection behavior in polarized circuits (e.g., DC-biased signal lines). Use SMCJ58CAHM3/H only where bidirectional symmetry is required or verified compatible.
What thermal derating applies to SMCJ58CAHM3/H above 25 °C ambient?
SMCJ58CAHM3/H must be derated linearly above TA = 25 °C per Figure 2 in the Vishay datasheet (Doc. #88394). At 75 °C ambient, its peak pulse power drops to ~850 W (≈57% of 1500 W), and at 125 °C, it falls to ~300 W. Derating is based on RθJA = 75 °C/W and assumes mounting on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. For SMCJ58CAHM3/H, sustained high-temperature operation requires verifying actual board-level thermal resistance.
SMCJ58CAHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ58CAHM3/H FAQ
1.How can I place an order for SMCJ58CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58CAHM3/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 SMCJ58CAHM3/H reliable?
The price and inventory of SMCJ58CAHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58CAHM3/H is usually 5 days.
3.What payment methods are accepted for SMCJ58CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58CAHM3/H?
SMCJ58CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58CAHM3/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 SMCJ58CAHM3/H?
For technical support, including SMCJ58CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58CAHM3/H requirements.
6.How does Aetrix verify that SMCJ58CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SMCJ58CAHM3/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 SMCJ58CAHM3/H meets industry standards.
7.What is the process for return or replacement of SMCJ58CAHM3/H?
All SMCJ58CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58CAHM3/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 SMCJ58CAHM3/H part is unused and in its original packaging.
Return procedure for SMCJ58CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58CAHM3/H 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 …
