My Inquiry
My Account
Taiwan Semiconductor Corporation SMCJ36CAH
- Part No.:
- SMCJ36CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ36CAH.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,315
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCJ36CAH from Taiwan Semiconductor is a bidirectional 36V stand-off, 1500W surface-mount transient voltage suppressor (TVS) in DO-214AB (SMC) package, featuring 40V minimum breakdown voltage, 58.1V maximum clamping voltage at 27A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCJ36CAH datasheet, SMCJ36CAH pinout, SMCJ36CAH application, or SMCJ36CAH equivalent, this device is selected for robust ESD and surge protection in CAN/LIN bus interfaces, power supply input stages, and industrial I/O modules where low clamping voltage, fast <1.0ps response, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance are critical.
Technical Context
The SMCJ36CAH is a bipolar TVS diode designed for symmetrical transient suppression in both directions, with electrical characteristics fully applicable across reverse and forward polarities. Its glass-passivated junction ensures stable VBR tolerance (40–44.2V), low leakage (<1µA @ 36V), and reliable operation from –55°C to +150°C junction temperature.
Thermally, it delivers RθJA = 55°C/W and RθJC = 10°C/W, enabling effective heat dissipation in high-density PCB layouts. It meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements, supporting automated SMT assembly without reflow degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 40 / 44.2 V - Verified breakdown range at 1 mA test current; ensures consistent turn-on threshold across production lots. |
| VC @ IPPM | 58.1 V - Clamped voltage at 27 A peak pulse (10/1000 µs waveform); directly limits downstream IC stress during transients. |
| PPK | 1500 W - Peak pulse power rating per single 1 ms surge; supports high-energy lightning-induced surges per IEC 61000-4-5. |
| IR @ VWM | <1 µA - Reverse leakage at rated stand-off voltage; minimizes standby power loss in battery-powered systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments and industrial enclosures. |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 0.210 g mass, matte tin-plated leads, and polarity band marking. |
Pinout & Package
DO-214AB (SMC) package: molded plastic case with cathode band indicating polarity; bidirectional configuration means both terminals function identically as anode/cathode depending on transient polarity - no functional pin distinction beyond physical marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode Band End | Reference terminal for unidirectional orientation | Marking band identifies terminal position but carries no directional function in SMCJ36CAH due to bidirectional symmetry. |
| Opposite End | Complementary terminal | Electrically identical to marked end; both terminals conduct equally during positive or negative transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test conditions including HTOL, TC, UHAST, and ESD-HBM/MM, ensuring long-term field reliability. |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (capacitive coupling), meeting OEM-level vehicle ECU requirements. |
| Fast response time | <1.0 ps rise time from 0 V to VBR min - enables clamping before sensitive logic or analog circuitry sustains damage. |
| Glass passivated junction | Provides stable VBR tolerance, low leakage drift over temperature/humidity, and immunity to surface contamination during reflow or operation. |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU - supports green manufacturing and end-of-life recycling mandates. |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load-dump spikes and electrostatic discharge during service operations. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed between LIN line and ground, absorbing energy while holding line voltage ≤58.1 V during 27 A surges. Use Value: Prevents latch-up or permanent damage to 5 V tolerant transceivers (e.g., TJA1020) during ISO 7637-2 Pulse 2a events up to 100 V/50 Ω. |
Use Scenario: Safeguarding 24 V DC digital input circuits against induced surges from relay coil switching and nearby motor drives. IC Role / Device Role / Timing Role: Primary surge suppression element across input terminals, shunting >1500 W pulses away from optocoupler input stage and series current-limiting resistor. Use Value: Enables direct connection to field wiring without external RC snubbers, reducing BOM count and board space while maintaining IEC 61000-4-4 Level 4 immunity. |
| Telecom Power Supply Input | Smart Meter Communication Interface |
Use Scenario: Front-end protection of AC/DC adapter inputs subjected to lightning-induced surges on building mains lines. IC Role / Device Role / Timing Role: First-line defense clamping common-mode transients between L/N and PE, coordinated with MOVs and gas discharge tubes in multi-stage architecture. Use Value: Limits let-through voltage to <60 V during 10/1000 µs surges, preventing overvoltage stress on primary-side controller ICs like UCC28056. |
Use Scenario: Shielding RS-485 transceivers (e.g., SN65HVD72) in utility meters from ESD events during hot-plug installation and EMC testing. IC Role / Device Role / Timing Role: Low-capacitance (typ. 150 pF @ 0 V) bidirectional clamp across differential pair, preserving signal integrity up to 500 kbps. Use Value: Passes IEC 61000-4-2 ±8 kV contact discharge without communication interruption or data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Lower peak power rating (600 W), smaller SMB package (DO-214AA), higher RθJA (75°C/W) | Suitable only for lower-energy transients (e.g., ESD-only); not recommended for ISO 7637-2 Pulse 1 or lightning surges. | Select SMCJ36CAH when system-level surge tests require ≥1500 W clamping capacity and thermal margin above 125°C ambient. |
| 1.5KE36CA | Through-hole TO-218 package, same 1500 W rating but slower response (>1 ns), higher clamping voltage (69.4 V) | Compatible with legacy through-hole designs; unsuitable for high-speed data lines due to parasitic inductance and capacitance. | Choose SMCJ36CAH for new SMT designs requiring compact footprint, faster response, and lower clamping voltage in space-constrained automotive or industrial PCBs. |
Compared with SMBJ36CA and 1.5KE36CA, the SMCJ36CAH delivers superior thermal performance (RθJA = 55°C/W), tighter VBR tolerance (±5.5%), and lower clamping ratio (VC/VWM = 1.61), making it optimal for high-reliability, high-density transient protection where layout area and thermal headroom are constrained.
Availability
SMCJ36CAH is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom power supply designs requiring stable component supply, full AEC-Q101 traceability, and ISO 7637-2 compliance.
Supply support for SMCJ36CAH 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 certification capability.
The SMCJ series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial environments, emphasizing low clamping voltage, fast response, and robust thermal design in standardized SMC packages.
FAQ
What does the "CAH" suffix indicate in SMCJ36CAH?
The "CAH" suffix denotes a bidirectional TVS diode with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional "H" variants, SMCJ36CAH provides symmetrical clamping in both polarities - essential for protecting AC-coupled or differential signal lines such as CAN, LIN, or RS-485 where transient direction is unpredictable.
How does SMCJ36CAH differ from SMCJ36AH?
SMCJ36AH is unidirectional (cathode-anode structure), while SMCJ36CAH is bidirectional (two back-to-back diodes). SMCJ36CAH has identical VWM (36 V), VBR (40–44.2 V), and VC (58.1 V) ratings but operates in both directions - critical for applications without defined polarity, whereas SMCJ36AH requires correct orientation during placement and only clamps reverse transients.
Is SMCJ36CAH compatible with lead-free reflow soldering profiles?
Yes, SMCJ36CAH is qualified for standard JEDEC J-STD-020 Level 1 moisture sensitivity and supports peak reflow temperatures up to 260°C. Its matte tin-plated leads meet J-STD-002 solderability requirements, and the DO-214AB package withstands multiple reflow cycles without delamination or parameter shift.
What is the maximum clamping voltage of SMCJ36CAH under real-world surge conditions?
The maximum clamping voltage of SMCJ36CAH is 58.1 V at 27 A peak pulse current (10/1000 µs waveform), as specified in the Taiwan Semiconductor datasheet. This value is measured under standardized test conditions and remains consistent across production lots - critical for validating downstream IC overvoltage margins in safety-critical designs.
Can SMCJ36CAH be used in parallel to increase surge handling capacity?
No - SMCJ36CAH is not recommended for parallel operation due to VBR mismatch (±5.5% tolerance), which causes uneven current sharing and potential thermal runaway. For higher energy handling, select a single higher-rated device (e.g., SMCJ40CAH) or implement staged protection with upstream current-limiting impedance.
SMCJ36CAH 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:
- -
- Bidirectional Channels:
- 1
- 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)
SMCJ36CAH FAQ
1.How can I place an order for SMCJ36CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ36CAH 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 SMCJ36CAH reliable?
The price and inventory of SMCJ36CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ36CAH is usually 5 days.
3.What payment methods are accepted for SMCJ36CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ36CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ36CAH?
SMCJ36CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ36CAH 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 SMCJ36CAH?
For technical support, including SMCJ36CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ36CAH requirements.
6.How does Aetrix verify that SMCJ36CAH is sourced from the original manufacturer or authorized distributors?
All SMCJ36CAH 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 SMCJ36CAH meets industry standards.
7.What is the process for return or replacement of SMCJ36CAH?
All SMCJ36CAH units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ36CAH, 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 SMCJ36CAH part is unused and in its original packaging.
Return procedure for SMCJ36CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ36CAH 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…
