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Taiwan Semiconductor Corporation S5MH
- Part No.:
- S5MH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
S5MH.pdf
- Description:
- 5A, 1000V, STANDARD RECOVERY REC
- Quantity:
- Payment:
- Shipping:
Inventory:5,940
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Product details
Overview
S5MH from Taiwan Semiconductor is a surface-mount general-purpose silicon rectifier diode rated for 1000 V repetitive peak reverse voltage (VRRM), 5 A average forward current (IF), and 100 A non-repetitive surge current (IFSM), with a maximum forward voltage of 1.15 V at 5 A and 25°C - used in automotive DC-DC converters and snubber circuits.
For engineers reviewing the S5MH datasheet, S5MH pinout, S5MH application, or S5MH equivalent, key selection criteria include its DO-214AB (SMC) package, AEC-Q101 qualification, glass-passivated junction, 1500 ns reverse recovery time, and moisture sensitivity level 1 compliance.
Technical Context
The S5MH is a single-die, unidirectional silicon rectifier optimized for high-voltage, medium-current switching applications. Its 1000 V VRRM rating and 150°C maximum junction temperature support operation in harsh automotive environments, while the 13°C/W junction-to-lead thermal resistance enables efficient heat transfer to the PCB.
Designed with a glass-passivated chip junction and matte tin-plated leads, the S5MH meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. Its 60 pF junction capacitance at 1 MHz and 4.0 V reverse bias supports stable high-frequency rectification in snubber and flyback topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification in 800 V-class industrial or automotive power supplies |
| IF | 5 A continuous - suitable for medium-power DC-DC converter output stages |
| IFSM | 100 A (8.3 ms half-sine) - withstands inrush and transient surges without failure |
| VF | ≤1.15 V @ 5 A, 25°C - minimizes conduction loss and thermal stress in high-duty-cycle operation |
| trr | 1500 ns - compatible with low-to-moderate frequency switching (e.g., <100 kHz) in flyback/snubber circuits |
| TJ max | 150°C - enables reliable operation under under-hood automotive ambient conditions |
| RθJL | 13°C/W - allows direct thermal coupling to copper pour for effective power dissipation |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Weight: 0.210 g. Molding compound: UL 94V-0 rated. Leads: matte tin-plated, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal for forward conduction | Connected to lower-potential side of AC source or switch node in snubber |
| Cathode | Output terminal during forward conduction; blocking terminal during reverse bias | Marked by band; ties to output rail or clamp node; must handle full VRRM standoff |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass-passivated junction | Prevents moisture ingress and surface leakage, improving long-term stability in humid environments |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; compatible with standard SMT assembly lines |
| Low VF and high IFSM | Enables compact thermal design while maintaining robustness against line transients |
| Halogen-free (IEC 61249-2-21) | Complies with environmental regulations for automotive and industrial end equipment |
Applications
| Automotive DC-DC Converters | Snubber Circuits |
|---|---|
Use Scenario: High-voltage battery-to-12 V DC-DC conversion in EV/HEV power distribution units. IC Role / Device Role / Timing Role: Output rectifier in synchronous or diode-based buck-derived topologies. Use Value: 1000 V VRRM safely clamps reflected spikes from 400–800 V battery rails; 5 A IF sustains continuous load current. | Use Scenario: RCD snubber across MOSFETs or IGBTs in motor drives and SMPS. IC Role / Device Role / Timing Role: Clamp diode that conducts during switch turn-off to absorb inductive energy. Use Value: 1500 ns trr aligns with typical 50–100 kHz switching; 100 A IFSM handles repetitive surge events. |
| Car Lighting Systems | Industrial Power Supplies |
Use Scenario: Rectification and polarity protection in LED headlamp driver inputs. IC Role / Device Role / Timing Role: Input bridge or single-diode rectifier handling alternator ripple and load dump transients. Use Value: AEC-Q101 qualification ensures survivability under ISO 7637-2 pulses; 150°C TJ max accommodates under-hood temps. | Use Scenario: Primary-side rectification in 3-phase rectifier modules or auxiliary power supplies. IC Role / Device Role / Timing Role: General-purpose HV rectifier in offline SMPS front-ends or hold-up circuits. Use Value: DO-214AB footprint enables high-density layout; UL 94V-0 molding supports safety-critical insulation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-5EWH10 | Same DO-214AB package, 1000 V VRRM, 5 A IF, but VF = 1.3 V (max) and trr = 2000 ns | Higher VF increases conduction loss; longer trr limits usable switching frequency | Prefer S5MH where lower VF and faster recovery are critical in thermally constrained layouts |
| ON Semiconductor MUR5100CT | TO-220AC package (not SMD), dual common-cathode configuration, same VRRM/IF ratings | Requires through-hole mounting and larger board area; not AEC-Q101 qualified | Select S5MH for automated SMT assembly, space-constrained automotive PCBs, or AEC-Q101 compliance needs |
Compared with VS-5EWH10 and MUR5100CT, the S5MH delivers superior thermal performance (13°C/W RθJL), lower forward drop, and automotive qualification - making it optimal for SMT-based, high-reliability 1000 V rectification where footprint, efficiency, and qualification matter.
Availability
S5MH is available at Aetrix Electronics and suitable for automotive DC-DC converters, snubber circuits, and industrial power supplies requiring stable component supply, consistent AEC-Q101 compliance, and DO-214AB packaging.
Supply support for S5MH 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, serving automotive, industrial, and consumer markets since 1979.
The S5MH belongs to TSC's S5xH series of AEC-Q101-qualified surface-mount rectifiers, engineered specifically for high-voltage, high-reliability rectification in automotive power systems and industrial switching supplies.
FAQ
What is the maximum junction temperature rating for the S5MH?
The S5MH has a maximum junction temperature (TJ max) of +150°C, enabling reliable operation in under-hood automotive environments and high-ambient industrial settings. This rating is validated per AEC-Q101 stress tests and supported by its 13°C/W junction-to-lead thermal resistance. The S5MH must be mounted on adequate copper area to maintain TJ ≤150°C under full 5 A load.
Is the S5MH pin-compatible with other devices in the S5xH family?
Yes - all S5xH devices, including S5MH, share identical DO-214AB (SMC) package dimensions, pinout (anode/cathode), and thermal pad layout. Voltage rating differences (50–1000 V) do not affect mechanical or electrical interface compatibility. The S5MH can replace lower-voltage S5xH variants in designs requiring higher VRRM, provided thermal and layout margins remain sufficient.
Does the S5MH require baking before reflow soldering?
No - the S5MH is rated Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH and placed directly into reflow without pre-bake. This simplifies SMT line integration and eliminates yield risk from moisture-induced popcorning, a key advantage over higher-MSL discrete rectifiers.
What is the reverse recovery time (trr) specification for the S5MH?
The S5MH has a typical reverse recovery time (trr) of 1500 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value supports use in 50–100 kHz switching applications such as snubbers and flyback converters. The trr is not specified as a maximum, but the typical value is consistently verified across production lots per TSC A2102 revision.
How does the S5MH's forward voltage compare to similar 1000 V rectifiers?
The S5MH specifies a maximum forward voltage (VF) of 1.15 V at 5 A and 25°C - among the lowest in its class. For comparison, Vishay VS-5EWH10 specifies 1.3 V max under identical conditions. This 0.15 V reduction lowers conduction losses by ~13% at full load, directly improving thermal margin and system efficiency in the S5MH-based design.
S5MH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.15 V @ 5 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 1.5 µs
- Current - Reverse Leakage @ Vr:
- 10 µA @ 1000 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
S5MH FAQ
1.How can I place an order for S5MH through Aetrix?
Please submit a Request for Quotation (RFQ) for S5MH 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 S5MH reliable?
The price and inventory of S5MH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S5MH is usually 5 days.
3.What payment methods are accepted for S5MH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S5MH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S5MH?
S5MH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S5MH 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 S5MH?
For technical support, including S5MH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S5MH requirements.
6.How does Aetrix verify that S5MH is sourced from the original manufacturer or authorized distributors?
All S5MH 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 S5MH meets industry standards.
7.What is the process for return or replacement of S5MH?
All S5MH units undergo pre-shipment inspection (PSI). If there is an issue with S5MH, 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 S5MH part is unused and in its original packaging.
Return procedure for S5MH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S5MH Tags
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1N4448X-TP
Micro Commercial Co
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1N4148WX-TP
Micro Commercial Co
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1N4148TR
onsemi
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MMSD4148T1G
onsemi
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MMBD914LT3G
onsemi
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BAS16HT1G
onsemi
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1N914BWT
onsemi
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BAS21LT1G
onsemi
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LL4148
onsemi
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BAS16LT1G
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MMSD914T1G
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BAV21W-7-F
Diodes Incorporated
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