Specifications
| Type | Description |
|---|---|
| Part Number | 15KE |
| Manufacturer | Vishay |
| Product Type | LDO Regulator |
| Category | Power Management |
| Package / Case | 1.5KE axial molded epoxy case; body diameter 0.190-0.210 in (4.8-5.3 mm), body length 0.285-0.375 in (7.2-9.5 mm), lead diameter 0.038-0.042 in (0.96-1.07 mm), lead length 1.0 in (25.4 mm) min |
| Component Type | Other |
| Inferred Category | Power_Management |
| Peak Pulse Power Dissipation | 1500 W; 10/1000 us waveform, non-repetitive pulse, TA=25°C |
| Peak Pulse Power Duty Cycle | 0.01%; repetitive rate |
| Power Dissipation | 6.5 W; infinite heatsink, TL=75°C |
| Peak Forward Surge Current | 200 A; 8.3 ms single half sine-wave, unidirectional only |
| Maximum Instantaneous Forward Voltage | 3.5 V; IF=100 A, unidirectional only, 1.5KE220A and below |
| Maximum Instantaneous Forward Voltage | 5.0 V; IF=100 A, unidirectional only, 1.5KE250A and above |
| Operating Junction Temperature Range | -55 to +175 °C; TJ |
| Storage Temperature Range | -55 to +175 °C; TSTG |
| Breakdown Voltage Range | 6.8 to 540 V; unidirectional types |
| Breakdown Voltage Range | 6.8 to 220 V; bidirectional types |
| Working Stand-Off Voltage Range | 5.8 to 459 V; unidirectional types |
| Working Stand-Off Voltage Range | 5.8 to 185 V; bidirectional types |
| Polarity Options | Unidirectional and bidirectional; bidirectional devices use CA suffix, e.g. 1.5KE220CA |
| Bidirectional Availability | 1.5KE6.8CA to 1.5KE220CA; bidirectional types only |
| Commercial Grade Only Range | 1.5KE250A to 1.5KE540A; commercial grade only |
| AEC-Q101 Qualified Range | 1.5KE6.8AHE3_B to 1.5KE220AHE3_B and 1.5KE6.8CAHE3_B to 1.5KE220CAHE3_B; HE3 ordering option |
| Breakdown Voltage Minimum | 6.45 to 513 V; across listed unidirectional part range, VBR at IT, TA=25°C |
| Breakdown Voltage Maximum | 7.14 to 567 V; across listed unidirectional part range, VBR at IT, TA=25°C |
| Breakdown Voltage Test Current | 10 mA, 1.0 mA; 10 mA for 1.5KE6.8A to 1.5KE8.2A, 1.0 mA for 1.5KE9.1A to 1.5KE540A |
| Maximum Stand-Off Voltage | 5.80 to 459 V; VWM across listed unidirectional part range, TA=25°C |
| Maximum Reverse Leakage | 1000 to 1.0 uA; ID at VWM; 1000 uA max for 1.5KE6.8A, 500 uA max for 1.5KE7.5A, 200 uA max for 1.5KE8.2A, 50 uA max for 1.5KE9.1A, 10 uA max for 1.5KE10A, 5 uA max for 1.5KE11A to 1.5KE13A, 1 uA max for 1.5KE15A to 1.5KE540A |
| Peak Pulse Current Range | 143 to 2.03 A; IPP across listed unidirectional part range, 10/1000 us waveform |
| Maximum Clamping Voltage Range | 10.5 to 740 V; VC at IPP across listed unidirectional part range |
| Temperature Coefficient of Breakdown Voltage | 0.057 to 0.110 %/°C; across listed unidirectional part range |
| Pulse Test Duration | tp <= 50 ms; breakdown voltage pulse test |
| Bidirectional Reverse Leakage Adjustment | ID limit doubled; bidirectional types with VR of 10 V and less |
| Typical Thermal Resistance Junction to Ambient | 75 °C/W; RθJA, TA=25°C |
| Typical Thermal Resistance Junction to Lead | 15.4 °C/W; RθJL, TA=25°C |
| Unit Weight | 0.968 g; ordering examples 1.5KE6.8A-E3/54 and 1.5KE6.8AHE3_B/C |
| Base Quantity | 1400; 13 inch diameter paper tape and reel delivery mode |
| Solder Dip Rating | 275 °C max for 10 s; per JESD 22-B106 |
| Case Material | Molded epoxy body over passivated junction; mechanical data |
| Flammability Rating | UL 94 V-0; molding compound |
| Lead Finish | Matte tin plated leads; solderable per J-STD-002 and JESD 22-B102 |
| Whisker Test | JESD 201 class 1A; E3 suffix |
| Whisker Test | JESD 201 class 2; HE3 suffix |
| Response Time | 1 x 10^-9 s; bidirectional TVS diode clamping action, application note |
| Datasheet Status | request_only |
Product Overview
The Vishay 15KE is a transient voltage suppressor diode family in the Power_Management category. The device uses a molded epoxy body over a passivated junction, with matte tin plated leads solderable per J-STD-002 and JESD 22-B102. The molding compound is rated UL 94 V-0, and solder dip capability is specified at 275°C maximum for 10 s per JESD 22-B106.
Electrical ratings include 1500 W peak pulse power dissipation for a 10/1000 us non-repetitive pulse at TA=25°C, 6.5 W power dissipation with an infinite heatsink at TL=75°C, and 200 A peak forward surge current for an 8.3 ms single half sine-wave on unidirectional types. Maximum instantaneous forward voltage is 3.5 V for 1.5KE220A and below, and 5.0 V for 1.5KE250A and above, both at IF=100 A.
The series includes unidirectional and bidirectional options, with CA suffix marking bidirectional devices. Bidirectional availability runs from 1.5KE6.8CA to 1.5KE220CA, while 1.5KE250A to 1.5KE540A is commercial grade only. Operating and storage temperature ranges are both -55 to +175°C.
Key Features
- 1500 W peak pulse power at 10/1000 us waveform
- 0.01% repetitive peak pulse power duty cycle
- 6.5 W dissipation with infinite heatsink at TL=75°C
- 200 A peak forward surge current for unidirectional types
- Unidirectional breakdown voltage range from 6.8 to 540 V
- Bidirectional breakdown voltage range from 6.8 to 220 V
- Working stand-off voltage up to 459 V unidirectional
- Operating junction temperature range from -55 to +175°C
- Molded epoxy body over passivated junction
- Matte tin plated leads solderable per J-STD-002
- UL 94 V-0 rated molding compound
- 1 x 10^-9 s bidirectional clamping response time
Typical Applications
- Transient clamping on power lines
- Bidirectional line transient suppression
- Unidirectional surge protection circuits
- Axial lead through-hole assemblies
- High pulse power protection stages
- Wide temperature protection designs
- AEC-Q101 HE3 ordering applications
Procurement Notes
When requesting a quote for 15KE, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For power IC and power device sourcing, voltage rating, current rating, power dissipation, package thermal performance, protection features, qualification grade and application conditions should be reviewed before approval.
FAQ
What type of device is the Vishay 15KE?
The Vishay 15KE is a transient voltage suppressor diode in the Power_Management category. It is supplied in a 1.5KE axial molded epoxy case and includes unidirectional and bidirectional polarity options.
What peak pulse power rating is specified for 15KE?
The extracted datasheet facts specify 1500 W peak pulse power dissipation for a 10/1000 us non-repetitive pulse waveform at TA=25°C, with a repetitive peak pulse power duty cycle of 0.01%.
What voltage ranges are covered by the 15KE family?
Unidirectional types cover a breakdown voltage range of 6.8 to 540 V and working stand-off voltage range of 5.8 to 459 V. Bidirectional types cover 6.8 to 220 V breakdown voltage and 5.8 to 185 V stand-off voltage.
How are bidirectional 15KE devices identified?
Bidirectional devices use the CA suffix, with the extracted facts giving 1.5KE220CA as an example. Bidirectional availability is listed from 1.5KE6.8CA to 1.5KE220CA.
What assembly and material details are specified?
The device uses a molded epoxy body over a passivated junction, matte tin plated leads solderable per J-STD-002 and JESD 22-B102, and a UL 94 V-0 rated molding compound. Solder dip rating is 275°C maximum for 10 s.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 27, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.