While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types.

The first three suffix letters stand for temperature range, package and
packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked
at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

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On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types.

The first three suffix letters stand for temperature range, package and >packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly >US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked
at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Newark is selling them in the USA for 24 cents at q1.

It looks OK for low-power uses. Lots of offset, lots of noise.

RRIO opamps generally make decent compareators too, and will compare a
signal against ground. That one has nice common-mode specs.

Most of them get stable if you hang a big enough cap on the output.

--- SoupGate-Win32 v1.05
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On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types.

The first three suffix letters stand for temperature range, package and >packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly >US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked
at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Some numbers specify shipping Q = 1000 to 4000.

RL

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On 09-02-2025 11:24 pm, legg wrote:

On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types.

The first three suffix letters stand for temperature range, package and
packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly
US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked
at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Some numbers specify shipping Q = 1000 to 4000.

RL

It's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and
why they cost only a fraction of those without the last four letters in
single quantities.

--- SoupGate-Win32 v1.05
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Pimpom <Pimpom@invalid.invalid> wrote:

On 09-02-2025 11:24 pm, legg wrote:

On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types. >>>
The first three suffix letters stand for temperature range, package and
packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly >>> US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked >>> at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Some numbers specify shipping Q = 1000 to 4000.

RL

It's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and
why they cost only a fraction of those without the last four letters in single quantities.

Looks like they are “second source “ parts from Xinbole Semiconductors. Could be legit or phoney?

--
piglet

--- SoupGate-Win32 v1.05
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On Mon, 10 Feb 2025 01:09:49 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

On 09-02-2025 11:24 pm, legg wrote:

On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types. >>>
The first three suffix letters stand for temperature range, package and
packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly >>> US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked >>> at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Some numbers specify shipping Q = 1000 to 4000.

RL

It's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and
why they cost only a fraction of those without the last four letters in >single quantities

Have you tried purchasing the part? Could be marketing restrictions.

RL

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On 10-02-2025 08:45 pm, legg wrote:

On Mon, 10 Feb 2025 01:09:49 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

On 09-02-2025 11:24 pm, legg wrote:

On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>
wrote:

While hunting for a cheap R-R opamp that's readily available here in
India, I came across the MCP6001 and 6002. Unusually for the Indian
market, a few sites offer several variants of both single and dual types. >>>>
The first three suffix letters stand for temperature range, package and >>>> packing but some have the four extra letters XBLW. These variants for
both single and dual types cost less than a third of the others (roughly >>>> US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked >>>> at datasheets from various sources including the latest one from
Microchip but couldn't find any reference to this extra suffix.

I assume that the extra letters are not batch or date codes. Chinese
copies maybe??

Some numbers specify shipping Q = 1000 to 4000.

RL

It's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and
why they cost only a fraction of those without the last four letters in
single quantities

Have you tried purchasing the part? Could be marketing restrictions.

RL

Not yet. I just remembered that I have a small batch of TLV2372 from ~10
years back. Same offset, even worse noise but that doesn't matter for my immediate needs. OTOH the TLV2372 has three times the voltage rating and
3 times the speed - at the cost of a higher supply current. But I'm
still curious about the XBLW suffix thing.

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Pimpom <Pimpom@invalid.invalid> Wrote in message:r

On 09-02-2025 11:24 pm, legg wrote:> On Sun, 9 Feb 2025 13:55:24 +0530, Pimpom <Pimpom@invalid.invalid>> wrote:> >> While hunting for a cheap R-R opamp that's readily available here in>> India, I came across the MCP6001 and 6002. Unusually for the

Indian>> market, a few sites offer several variants of both single and dual types.>>>> The first three suffix letters stand for temperature range, package and>> packing but some have the four extra letters XBLW. These variants for>> both single and dual
types cost less than a third of the others (roughly>> US$0.20 vs $0.75) but I cannot find what the letters stand for. I looked>> at datasheets from various sources including the latest one from>> Microchip but couldn't find any reference to this extra
suffix.>>>> I assume that the extra letters are not batch or date codes. Chinese>> copies maybe??> > Some numbers specify shipping Q = 1000 to 4000.> > RLIt's the letters XBLW I'm concerned about, like MCP6002T-I/SN-XBLW, and why they cost only a
fraction of those without the last four letters in single quantities.

It's not made by microchip, the mfg is xinbole.

Cheers
--


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