My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ36AH
- Part No.:
- SMCJ36AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36AH.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,338
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ36AH from Taiwan Semiconductor is a unidirectional 1500W surface-mount transient voltage suppressor (TVS) diode in DO-214AB (SMC) package, with 36V working stand-off voltage (VWM), 40–44.2V breakdown voltage (VBR), and 58.1V maximum clamping voltage (VC) at 27A peak pulse current. It delivers AEC-Q101 qualification and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and ESD protection in power supply rails.
For engineers reviewing the SMCJ36AH datasheet, SMCJ36AH pinout, SMCJ36AH application, or SMCJ36AH equivalent, this device is selected for high-energy transient suppression in 12V/24V automotive subsystems, industrial DC inputs, and telecom power interfaces where low clamping voltage, fast <1.0ps response, and robust 1500W surge handling are critical.
Technical Context
The SMCJ36AH employs a glass-passivated silicon junction optimized for unidirectional transient suppression, operating between -55°C and +150°C junction temperature. Its clamping behavior follows the 10/1000μs standard waveform per IEC 61000-4-5 and ANSI/IEEE C62.35, with thermal resistance RθJC = 10°C/W enabling effective heat transfer to PCB copper.
It exhibits ≤1μA reverse leakage at VWM = 36V, forward voltage VF = 3.5V at 100A (per family spec for SMCJ5.0H–SMCJ90H), and complies with JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - confirming suitability for lead-free reflow and high-reliability automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12V/24V systems. |
| VBR min/max | 40 V / 44.2 V @ IT = 1 mA - Confirmed breakdown threshold range ensures consistent turn-on across production lots. |
| VC @ IPPM | 58.1 V @ 27 A - Clamping voltage during 10/1000μs surge; limits downstream IC stress to safe levels under ISO 7637-2 Pulse 5a. |
| PPK | 1500 W - Peak pulse power rating at TA = 25°C; supports single-event transients up to 1500W without failure. |
| IR @ VWM | <1 μA - Ultra-low leakage preserves battery life and signal integrity in always-on circuits. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 0.210g mass and UL 94V-0 molding compound. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with matte tin-plated leads, cathode band marking polarity, and JEDEC-compliant dimensions (L × W × H ≈ 7.11 × 6.22 × 2.34 mm). Designed for automated placement and RoHS/halogen-free compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-voltage return path; forms current sink during transient conduction. |
| Cathode | High-side connection terminal | Connected to protected line (e.g., 24V rail); blocks reverse current until VBR exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
| Glass passivated junction | Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, critical for under-hood environments. |
| Clamping voltage ≤58.1 V | Enables protection of 48V-tolerant interface ICs (e.g., CAN transceivers, LIN controllers) on 24V supply lines. |
| Response time <1.0 ps | Ensures sub-nanosecond turn-on to suppress ESD events (IEC 61000-4-2) before sensitive circuitry latches or fails. |
| ISO 7637-2 compliance | Guarantees immunity to real-world automotive transients including load dump (Pulse 5a), inductive switching (Pulse 1/2b), and coupling noise (Pulse 3a/3b). |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting 24V power input of BCM microcontroller and CAN transceiver against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed upstream of LDO and CAN bus driver to limit voltage excursions to ≤58.1 V. Use Value: Prevents latch-up or permanent damage to 5V/3.3V logic and 40V-rated CAN PHY during 120V/350ms load dump events. | Use Scenario: Safeguarding 24V digital input channel of programmable logic controller against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact input circuit, absorbing energy before optocoupler or Schmitt trigger stage. Use Value: Enables >1500W surge handling while maintaining <1μA leakage to avoid false triggering in high-impedance sensing paths. |
| Telecom Power Supply Input | EV Charging Station DC Link |
Use Scenario: Front-end protection of AC/DC converter secondary side (24–48V output) against lightning-induced surges on telecom site power feeds. IC Role / Device Role / Timing Role: Fast-response TVS placed across bulk capacitor terminals to clamp common-mode transients entering via DC cabling. Use Value: Limits clamped voltage to 58.1V, preserving 63V-rated electrolytic capacitors and preventing MOSFET gate oxide overstress. | Use Scenario: Transient suppression on 400V DC link monitoring circuitry in EV charging station control board. IC Role / Device Role / Timing Role: Secondary-level TVS protecting isolated voltage divider and ADC front-end from coupling transients during contactor switching. Use Value: Provides precise 36V standoff with 58.1V clamping to match 3.3V ADC reference scaling and ensure measurement integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | 600W PPK rating, SMB package (smaller footprint), higher VC = 59.0V @ 17.3A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select SMCJ36AH when 1500W surge capability and DO-214AB mechanical robustness are required. |
| 1.5KE36A | Through-hole TO-218 package, same 36V VWM, but slower response (>1ns) and no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive under-hood use due to packaging and qualification gap | Choose SMCJ36AH for surface-mount compatibility, AEC-Q101 compliance, and sub-ps response in space-constrained designs. |
Compared with SMBJ36A and 1.5KE36A, the SMCJ36AH delivers 2.5× higher peak power handling, certified automotive reliability, and faster transient response - making it the preferred choice for mission-critical 24V rail protection where layout density and regulatory compliance are non-negotiable.
Availability
SMCJ36AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC input protection, and telecom power supply design requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for SMCJ36AH 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, and power devices since 1979.
The SMCJ series was developed specifically for high-reliability transient suppression in automotive and industrial environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust glass-passivated junction technology.
FAQ
What is the clamping voltage of SMCJ36AH and how is it measured?
The SMCJ36AH has a maximum clamping voltage (VC) of 58.1 V, measured at a peak pulse current (IPPM) of 27 A using the standardized 10/1000 μs double-exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range and reflects worst-case voltage seen by downstream components during surge events - a key parameter for ensuring protected ICs remain within absolute maximum ratings. The SMCJ36AH achieves this clamping performance while maintaining low leakage and fast response.
Is SMCJ36AH suitable for bidirectional transient protection?
No, the SMCJ36AH is a unidirectional TVS diode intended only for DC circuits with defined polarity. For bidirectional protection (e.g., AC lines or data buses), Taiwan Semiconductor specifies part numbers with CH or CAH suffixes - such as SMCJ36CAH - which feature symmetrical breakdown in both directions. Using SMCJ36AH in a bidirectional configuration risks reverse conduction and failure; always verify polarity alignment and select the correct variant per circuit topology.
Does SMCJ36AH meet automotive qualification standards?
Yes, the SMCJ36AH is explicitly AEC-Q101 qualified and tested per the full stress test schedule, including HTGB, H3TRB, TC, UHAST, and ESD. It also meets ISO 7637-2 requirements for Pulse 1 (inductive switch-off), Pulse 2a/2b (battery disconnection), and Pulse 3a/3b (capacitive coupling), making it suitable for engine control units, infotainment power supplies, and ADAS sensor modules where automotive-grade reliability is mandatory.
What is the thermal resistance of SMCJ36AH and how does it affect PCB layout?
The SMCJ36AH has a junction-to-case thermal resistance (RθJC) of 10°C/W and junction-to-ambient (RθJA) of 55°C/W. To maintain TJ ≤ 150°C under 1500W surge conditions, PCB layout must provide adequate copper area (≥100 mm² per pad) and thermal vias beneath the cathode/anode pads. Insufficient copper will cause localized overheating and premature failure - especially during repetitive surge events. Refer to TSC's suggested pad layout in the DO-214AB outline drawing for optimal thermal performance.
How does SMCJ36AH compare to SMCJ36H in terms of electrical performance?
The SMCJ36AH offers tighter breakdown voltage tolerance (40–44.2 V) compared to SMCJ36H (40–48.9 V), resulting in more predictable clamping onset and reduced risk of premature conduction. Both share identical VWM (36 V), PPK (1500 W), and package (DO-214AB), but the "A" grade provides enhanced consistency for designs requiring precise voltage threshold control - such as those interfacing with 3.3V or 5V supervisors or ADC reference dividers. The SMCJ36AH is the recommended variant for high-precision protection schemes.
SMCJ36AH 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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 27A
- 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)
SMCJ36AH FAQ
1.How can I place an order for SMCJ36AH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36AH 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 SMCJ36AH reliable?
The price and inventory of SMCJ36AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36AH is usually 5 days.
3.What payment methods are accepted for SMCJ36AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36AH?
SMCJ36AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36AH 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 SMCJ36AH?
For technical support, including SMCJ36AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36AH requirements.
6.How does Aetrix verify that SMCJ36AH is sourced from the original manufacturer or authorized distributors?
All SMCJ36AH 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 SMCJ36AH meets industry standards.
7.What is the process for return or replacement of SMCJ36AH?
All SMCJ36AH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36AH, 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 SMCJ36AH part is unused and in its original packaging.
Return procedure for SMCJ36AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36AH 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
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 …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
