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SM6S36AHE3_A/I
Vishay General Semiconductor - Diodes Division
TVS DIODE 36VWM 58.1VC DO218AB
5747 Pcs New Original In Stock
58.1V Clamp 79A Ipp Tvs Diode Surface Mount DO-218AB
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5.0 / 5.0
- (191 Ratings)
SM6S36AHE3_A/I
Product Overview
1044075
DiGi Electronics Part Number
SM6S36AHE3_A/I-DGManufacturer
Vishay General Semiconductor - Diodes Division
SM6S36AHE3_A/I
Description
TVS DIODE 36VWM 58.1VC DO218ABInventory
5747 Pcs New Original In Stock
58.1V Clamp 79A Ipp Tvs Diode Surface Mount DO-218AB
CAD Models - PCB Symbols & Footprints
Quantity
Minimum 1
Minimum 1
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SM6S36AHE3_A/I Technical Specifications
Category
Transient Voltage Suppressors (TVS), TVS Diodes
Packaging
Tape & Reel (TR)
Series
PAR®
Product Status
Active
Type
Zener
Unidirectional Channels
1
Voltage - Reverse Standoff (Typ)
36V
Voltage - Breakdown (Min)
40V
Voltage - Clamping (Max) @ Ipp
58.1V
Current - Peak Pulse (10/1000µs)
79A
Power - Peak Pulse
4600W (4.6kW)
Power Line Protection
No
Applications
-
Capacitance @ Frequency
-
Operating Temperature
-55°C ~ 175°C (TJ)
Grade
Automotive
Qualification
AEC-Q101
Mounting Type
Surface Mount
Package / Case
DO-218AB
Supplier Device Package
DO-218AB
Base Product Number
SM6S36
Datasheet & Documents
HTML Datasheet
SM6S36AHE3_A/I-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8541.10.0080
Additional Information
Other Names
SM6S36AHE3_A/I-DG
112-SM6S36AHE3_A/IDKR
112-SM6S36AHE3_A/ICT
112-SM6S36AHE3_A/ITR
Standard Package
750
Alternative Parts
PART NUMBER
MANUFACTURER
QUANTITY AVAILABLE
DiGi PART NUMBER
UNIT PRICE
SUBSTITUTE TYPE
Reviews
5.0/5.0-(Show up to 5 Ratings)
Dec 02, 2025
항상 합리적인 가격과 친절한 고객 서비스로 만족스러워요.
Dec 02, 2025
수령하는 순간 포장이 깨끗하고 견고하다는 것을 알 수 있었습니다.
Dec 02, 2025
長期顧客として、DiGi Electronicsのアフターサポートに大変満足しています。
Dec 02, 2025
Their competitive pricing makes it easy to find great deals without compromising quality.
Dec 02, 2025
My order arrived quickly, and the support team was very approachable.
Dec 02, 2025
The craftsmanship is flawless, and the products feel high-end.
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Frequently Asked Questions (FAQ)
Can the SM6S36AHE3_A/I TVS diode safely replace a SMAJ36A in a 48V industrial power rail protection circuit, and what are the key risks to evaluate during this substitution?
Replacing SMAJ36A with SM6S36AHE3_A/I requires careful evaluation despite both being 36V standoff TVS diodes. The SM6S36AHE3_A/I offers significantly higher peak pulse power (4.6kW vs. ~400W for SMAJ36A) and superior clamping performance (58.1V @ 79A vs. ~58.1V @ 5.2A), making it more robust for high-energy transients. However, its larger DO-218AB package may not fit existing SMA footprint layouts, and its higher parasitic capacitance—though unspecified—could affect signal integrity in high-speed lines. Additionally, verify that the system’s normal operating voltage stays below 36V; marginal designs near this threshold risk false triggering. Always validate thermal performance under actual surge conditions, as the higher energy handling demands adequate PCB copper area for heat dissipation.
What design considerations are critical when using the SM6S36AHE3_A/I in an automotive 12V battery line for load dump protection, especially regarding AEC-Q101 compliance and long-term reliability?
When deploying the SM6S36AHE3_A/I in 12V automotive systems for ISO 7637-2 load dump protection, leverage its AEC-Q101 qualification and -55°C to +175°C operating range, but ensure the 36V standoff voltage provides sufficient margin above the maximum steady-state voltage (typically 16–18V). The diode’s 58.1V clamp voltage must be below the downstream ICs’ absolute maximum ratings—commonly 40V or less—so verify headroom. Use a low-inductance ground path and place the TVS as close as possible to the connector to minimize inductive voltage spikes. Given its 4.6kW peak power rating, it can handle severe load dump pulses (e.g., 35V/2Ω/400ms), but repeated exposure without proper thermal management may degrade performance over time. Include a fuse or current-limiting mechanism upstream to prevent thermal runaway during sustained faults.
How does the SM6S36AHE3_A/I compare to Littelfuse’s 5KP36A for high-reliability aerospace applications, and what trade-offs exist in terms of surge capability and board space?
The SM6S36AHE3_A/I (Vishay) and 5KP36A (Littelfuse) both target high-surge environments, but key differences affect aerospace design choices. The SM6S36AHE3_A/I delivers 4.6kW peak power in a compact DO-218AB surface-mount package, ideal for space-constrained PCBs, while the 5KP36A offers 5kW in a through-hole P600 package, requiring more board real estate and manual assembly. Although both meet stringent surge standards, the SM6S36AHE3_A/I’s MSL 1 rating allows unlimited floor life and simplifies handling in automated production—critical for high-volume or remote manufacturing. However, the 5KP36A may offer better thermal derating in natural convection due to its larger lead structure. For new designs prioritizing miniaturization and reflow compatibility, the SM6S36AHE3_A/I is preferable, but legacy systems or extreme thermal cycling scenarios might still favor the through-hole alternative.
Is the SM6S36AHE3_A/I suitable for protecting RS-485 communication lines in harsh industrial environments, and how should layout and grounding be optimized to avoid signal degradation?
The SM6S36AHE3_A/I can protect RS-485 lines against ESD, EFT, and surge events, but its relatively high capacitance (not specified in datasheet, but typical for high-power TVS diodes) may distort high-speed differential signals above 10Mbps. To mitigate this, place the TVS diodes as close as possible to the transceiver IC pins and use a symmetrical layout on both A and B lines to maintain common-mode balance. Route traces with controlled impedance and avoid stubs. Ground the TVS cathode directly to a solid ground plane with minimal via inductance—preferably using multiple vias. Although the device is unidirectional, ensure the RS-485 transceiver’s common-mode voltage range accommodates the 0V to 58.1V clamping window during transients. For baud rates exceeding 50Mbps, consider lower-capacitance alternatives like the SMAJ series, but for typical industrial RS-485 (≤10Mbps), the SM6S36AHE3_A/I provides robust protection when properly laid out.
What failure modes should be anticipated if the SM6S36AHE3_A/I is subjected to repeated IEC 61000-4-5 surge pulses without adequate thermal management, and how can this risk be mitigated in field-deployed systems?
Repeated exposure to IEC 61000-4-5 surge pulses (e.g., 1.2/50µs voltage, 8/20µs current) without sufficient thermal dissipation can cause cumulative degradation or catastrophic failure of the SM6S36AHE3_A/I due to localized heating at the junction. Even with its 4.6kW peak rating, the diode’s ability to absorb energy diminishes if the PCB copper area is insufficient to spread heat, leading to thermal runaway or bond wire fatigue. Mitigation includes using a minimum of 2 in² of 2 oz copper connected to the cathode pad, avoiding placement near heat-sensitive components, and incorporating periodic surge testing during validation. In field-deployed systems, add diagnostic monitoring (e.g., current sensing) or redundant protection stages (like a series inductor or gas discharge tube) to share surge stress. Always derate the device by at least 20% for mission-critical applications to ensure long-term reliability under repetitive transient conditions.
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SM6S36AHE3_A/I CAD Models
Vishay General Semiconductor - Diodes Division SM6S36AHE3_A/I PCB symbols & footprints
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